Volvo Vehicle Models Volvo S40 2004-2012 Torque Specifications
Volvo Vehicle Models Volvo S40 2004-2012

Volvo Vehicle Models Volvo S40 2004-2012 Torque Specifications

Complete Volvo Vehicle Models Volvo S40 2004-2012 torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

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Search by component name, bolt size, or description

Torque Calculator

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1.6l I4 Engine

Torque specifications for 1.6L-I4 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 25 ft-lbs (34 N·m) 2. 90°
Important Notes
Follow the manufacturer's torque sequence for proper sealing. Estimated bolt size based on typical cylinder head bolts.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure proper alignment of the crankshaft before tightening.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper alignment of the connecting rod before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper tension on the timing belt/chain before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Ensure the camshaft is properly aligned before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure the intake manifold gasket is properly seated before tightening.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.

Accessories

1

Alternator Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the alternator is properly aligned before tightening.
2

Serpentine Belt Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper belt tension before tightening.

2.0l I4 Engine

Torque specifications for 2.0L-I4 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 25 ft-lbs (34 N·m) 2. 90°
Important Notes
Follow the manufacturer's torque sequence for the cylinder head bolts to ensure proper sealing.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure proper alignment of the main bearings before tightening.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper tension on the timing belt/chain before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Ensure the camshaft is properly aligned before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Tighten bolts in a crisscross pattern to ensure even sealing.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.

Accessory Drives

1

Serpentine Belt Tensioner Bolt

M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper belt tension before tightening.
2

Drive Belt Idler Pulley Bolt

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the pulley rotates freely before tightening.

2.4l I5 Engine

Torque specifications for 2.4L-I5 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 25 ft-lbs (34 N·m) 2. 90°
Important Notes
Follow the manufacturer's specified torque sequence to avoid warping the cylinder head.

Main Bearings

1

Main Bearing Bolts

M12 x 1.5
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Ensure the crankshaft is properly seated before torquing.

Connecting Rods

1

Connecting Rod Nuts

M8 x 1.0
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the connecting rod bearings are properly installed before torquing.

Flywheel

1

Flywheel Bolts

M10 x 1.25
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure the flywheel is properly aligned before torquing.

Oil Pan

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before torquing.

Valve Cover

1

Valve Cover Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before torquing.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the tensioner is properly aligned before torquing.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Ensure the camshaft sprocket is properly aligned before torquing.

Crankshaft Pulley

1

Crankshaft Pulley/Harmonic Balancer Bolt

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure the pulley is properly aligned before torquing.

Intake Manifold

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure the intake manifold gasket is properly seated before torquing.

Exhaust Manifold

1

Exhaust Manifold/Headers Bolts

M8 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before torquing.

Egr Valve

1

EGR Valve Bolts

M6 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Ensure the EGR valve gasket is properly seated before torquing.

Fuel System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the fuel rail is properly aligned before torquing.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the fuel injectors are properly seated before torquing.
3

High-Pressure Fuel Pump Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the high-pressure fuel pump is properly aligned before torquing.

Ignition System

1

Spark Plugs

M14 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the spark plugs are properly seated before torquing.
2

Ignition Coil Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the ignition coil is properly seated before torquing.

Valvetrain

1

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Ensure the rocker arms/shafts are properly aligned before torquing.
2

Camshaft Position Sensor Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the camshaft position sensor is properly seated before torquing.

Cooling System

1

Water Pump Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the water pump gasket is properly seated before torquing.
2

Water Pump Pulley Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the water pump pulley is properly aligned before torquing.
3

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the thermostat housing gasket is properly seated before torquing.

Accessory Drive

1

Serpentine/Accessory Drive Belt Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the belt tensioner is properly aligned before torquing.
2

Drive Belt Idler Pulley Bolt

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the idler pulley is properly aligned before torquing.

Oil System

1

Oil Filter Housing Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the oil filter housing gasket is properly seated before torquing.
2

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the oil drain plug gasket is properly seated before torquing.

Starter Motor

1

Starter Motor Mounting Bolts

M10 x 1.25
Torque Specification
33 ft-lbs (44 N·m)
Important Notes
Ensure the starter motor is properly aligned before torquing.

Alternator

1

Alternator Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the alternator is properly aligned before torquing.

Ac Compressor

1

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Ensure the A/C compressor is properly aligned before torquing.

Power Steering Pump

1

Power Steering Pump Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the power steering pump is properly aligned before torquing.

Crankshaft Position Sensor

1

Crankshaft Position Sensor Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the crankshaft position sensor is properly seated before torquing.

Oil Pump

1

Oil Pump Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the oil pump gasket is properly seated before torquing.

Timing Cover

1

Timing Cover Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the timing cover gasket is properly seated before torquing.

Engine Mounts

1

Engine Mount Bolts

M12 x 1.5
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure the engine mounts are properly aligned before torquing.

Turbocharger

1

Turbocharger Mounting Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the turbocharger gasket is properly seated before torquing.

Crankcase Ventilation

1

Crankcase Ventilation Valve Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the crankcase ventilation valve gasket is properly seated before torquing.

2.5l I5 Engine

Torque specifications for 2.5L-I5 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 25 ft-lbs (34 N·m) 2. 90°
Important Notes
Follow the manufacturer's specified torque sequence. Final step involves a 90-degree angle tightening.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Follow the manufacturer's specified torque sequence for main bearing bolts.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper alignment of connecting rods before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper tensioning of the timing belt/chain before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Ensure the camshaft sprocket is properly aligned before tightening.

Turbocharger System

1

Turbocharger Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar turbocharger systems.
2

Turbocharger Oil Feed Line Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar turbocharger systems.

2.5l I5 Turbo Engine

Torque specifications for 2.5L-I5-TURBO Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 25 ft-lbs (34 N·m) 2. 90°
Important Notes
Follow the manufacturer's specified torque sequence. Final step involves a 90-degree angle tightening.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
58 ft-lbs (78 N·m)
Important Notes
Follow the manufacturer's specified torque sequence for main bearing bolts.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper alignment of connecting rods before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper tensioning of the timing belt/chain before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
43 ft-lbs (58 N·m)
Important Notes
Ensure the camshaft sprocket is properly aligned before tightening.

Turbocharger System

1

Turbocharger Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar turbocharger systems.
2

Turbocharger Oil Feed Line Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar turbocharger systems.

Aw55 Transmission

Torque specifications for Aw55 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure proper alignment of the transmission before tightening.

Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Use a new gasket and ensure the pan surface is clean before installation.

Fluid Plugs

1

Transmission Drain Plug

M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the plug threads are clean and free of debris before installation.
2

Transmission Fill Plug

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the plug threads are clean and free of debris before installation.

Driveline

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure the axle is properly seated before tightening.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
185 ft-lbs (250 N·m)
Important Notes
Use a new axle nut and ensure the threads are clean before installation.
3

Propeller/Drive Shaft Bolts

M8 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure the drive shaft is properly aligned before tightening.

Torque Converter

1

Torque Converter Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure the torque converter is properly seated before tightening.

Bellhousing

1

Transmission Bellhousing Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the bellhousing is properly aligned with the engine block before tightening.

Shift Linkage

1

Shift Linkage Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the shift linkage is properly aligned before tightening.

Cooler Lines

1

Transmission Cooler Line Fittings

M10 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the cooler lines are properly seated before tightening.

Crossmember

1

Transmission Crossmember Bolts

M12 x 1.75
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure the crossmember is properly aligned with the chassis before tightening.

Body

Torque specifications for Body

Suspension And Steering

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Ensure proper cross-pattern tightening sequence for even load distribution.
2

Strut/Shock Absorber Mounting Bolts

M10 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure suspension is at ride height before final torque application.
3

Control Arm Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure suspension is at ride height before final torque application.
4

Ball Joint Nut

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure proper alignment of the ball joint before tightening.
5

Tie Rod End Nut

M10 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure proper alignment of the tie rod end before tightening.
6

Sway Bar Link Nut

M8 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure proper alignment of the sway bar link before tightening.
7

Steering Gear/Rack Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure proper alignment of the steering rack before tightening.

Fuel System

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure fuel tank is properly aligned before tightening.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure proper alignment of the fuel filler neck before tightening.

Electrical System

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure terminals are clean and free of corrosion before tightening.

Body And Safety

1

Seat Belt Anchorage Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Critical for passenger safety. Ensure proper alignment before tightening.
2

Door Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure door alignment before tightening.
3

Hood Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure hood alignment before tightening.
4

Trunk Lid Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure trunk lid alignment before tightening.
5

Roof Rack Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure roof rack alignment before tightening.
6

Bumper Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure bumper alignment before tightening.
7

Fender Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure fender alignment before tightening.
8

Radiator Support Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure radiator alignment before tightening.

Brakes

Torque specifications for Brakes

Brake Caliper System

1

Brake Caliper Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
These bolts secure the brake caliper to the mounting bracket. Ensure proper alignment before torquing.
2

Brake Caliper Mounting Bracket Bolts

M12 x 1.5
Torque Specification
63 ft-lbs (85 N·m)
Important Notes
These bolts attach the caliper mounting bracket to the steering knuckle or axle.

Brake Disc Drum System

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
These bolts secure the brake disc or drum to the wheel hub.

Brake Hydraulic System

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
This bolt connects the brake hose to the caliper. Ensure proper alignment and use new sealing washers.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
These bolts secure the master cylinder to the brake booster.

Brake Booster System

1

Brake Booster Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These bolts secure the brake booster to the firewall.
2

Brake Pedal Assembly Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These bolts secure the brake pedal assembly to the firewall or pedal box.

Abs System

1

ABS Sensor Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
These bolts secure the ABS sensor to the wheel hub or steering knuckle.

Wheel System

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
These lug nuts secure the wheel to the hub. Use a star pattern for torquing.

Drivetrain

Torque specifications for Drivetrain

Engine Transmission Interface

1

Flywheel Bolts

M10 x 1.25
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure the flywheel is properly aligned before tightening.
2

Transmission Bellhousing Bolts

M10 x 1.5
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment of the transmission to the engine.
3

Torque Converter Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the torque converter is fully seated before tightening.

Transmission Assembly

1

Transmission Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the transmission is properly aligned with the chassis.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Use a torque wrench calibrated for low torque values to avoid over-tightening.
3

Transmission Drain and Fill Plugs

M12 x 1.75
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the sealing washer is in good condition before installation.

Driveshaft And Axles

1

Drive Axle/Half Shaft Bolts

M10 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure the axle is properly seated in the transmission or differential.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
185 ft-lbs (250 N·m)
Important Notes
Use a torque wrench capable of handling high torque values.
3

Propeller/Drive Shaft Bolts

M8 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure the drive shaft is properly aligned with the transmission and differential.

Differential And Transfer Case

1

Differential Mounting Bolts

M10 x 1.5
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Estimated value based on similar components. Ensure the differential is properly aligned with the chassis.
2

Differential Drain/Fill Plug

M14 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure the sealing washer is in good condition before installation.
3

Transfer Case Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on similar components. Ensure the transfer case is properly aligned with the chassis.
4

Transfer Case Drain/Fill Plug

M12 x 1.75
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the sealing washer is in good condition before installation.

Clutch Assembly

1

Clutch Pressure Plate Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the pressure plate is properly aligned with the flywheel.

Electrical

Torque specifications for Electrical

Ignition System

1

Ignition Coil Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the ignition coil is properly seated before torquing.

Starting System

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (44 N·m)
Important Notes
Ensure the starter motor is properly aligned with the flywheel before torquing.

Charging System

1

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the alternator is properly aligned with the belt drive system before torquing.

Battery System

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the battery terminals are clean and free of corrosion before torquing.

Fuel System

1

Fuel Pump Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the fuel pump is properly seated before torquing.

Climate Control System

1

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Ensure the A/C compressor is properly aligned with the belt drive system before torquing.
2

A/C Line Fittings

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the A/C lines are properly aligned before torquing.

Grounding System

1

Ground Strap Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the ground strap is properly seated before torquing.

Engine Control System

1

ECU Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the ECU is properly seated before torquing.

Fuse And Relay System

1

Fuse Box Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the fuse box is properly seated before torquing.

Wiring System

1

Wiring Harness Clamp Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the wiring harness is properly routed before torquing.

Lighting System

1

Headlight Housing Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the headlight housing is properly aligned before torquing.

Emissions Sensors

Torque specifications for Emissions_sensors

Egr System

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Ensure the EGR valve gasket is properly seated before tightening.

Exhaust Manifold

1

Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Use a crisscross pattern to ensure even pressure on the manifold.
2

Exhaust Manifold to Cylinder Head Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the manifold is properly aligned before tightening.

Exhaust Pipe

1

Exhaust Pipe to Exhaust Manifold Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the exhaust pipe is properly aligned before tightening.
2

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the catalytic converter is properly aligned before tightening.

Sensors

1

Oxygen Sensor (O2 Sensor) Mounting

M12 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated value based on similar sensor mounting specifications.
2

Exhaust Gas Temperature Sensor Mounting

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar sensor mounting specifications.

Heat Shields

1

Catalytic Converter Heat Shield Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on similar heat shield mounting specifications.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold Headers

1

Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Use a torque wrench to ensure accurate application of torque.

Exhaust Pipe Connections

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
2

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
3

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure gasket is properly seated before tightening.

Exhaust Support Components

1

Exhaust Hanger Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure hangers are properly aligned before tightening.
2

Oxygen Sensor (O2 Sensor) Bolts

M12 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the sensor is properly seated before tightening.
3

Exhaust Flange Bolts

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
4

Heat Shield Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure heat shield is properly aligned before tightening.

Fuel

Torque specifications for Fuel

Fuel Delivery System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure a leak-free seal and prevent damage to the injectors or rail.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure a proper seal and prevent fuel leaks or injector damage.
3

High-Pressure Fuel Line Fittings

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar high-pressure fittings. Ensure a secure, leak-free connection.
4

Fuel Pressure Regulator Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure a secure fit and prevent leaks or pressure irregularities.

Fuel Storage System

1

Fuel Pump Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the pump is securely mounted and prevent fuel leaks or pump failure.
2

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the tank is stable and prevent leaks or tank movement.
3

Fuel Tank Sender Unit Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure accurate fuel level readings and prevent leaks.

Fuel Filtration System

1

Fuel Filter Bolt/Nut

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure a leak-free connection and maintain fuel system pressure.

Fuel Filling System

1

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure a secure connection and prevent fuel leaks or filler neck detachment.

Fuel Line Securing System

1

Fuel Line Clamp Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Prevent fuel line movement and potential leaks.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.5
Torque Specification
19 ft-lbs (26 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.

Ac Lines

1

A/C Line Fittings

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure fittings are clean and free of debris before installation.

Evaporator Housing

1

Evaporator Housing Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on similar M6 bolts in HVAC systems.

Blower Motor

1

Blower Motor Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on similar M6 bolts in HVAC systems.

Heater Core

1

Heater Core Inlet/Outlet Fittings

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure fittings are clean and free of debris before installation.

Hvac Control Module

1

HVAC Control Module Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on similar M6 bolts in HVAC systems.

Condenser

1

Condenser Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.

Suspension

Torque specifications for Suspension

Strut Shock Absorber

1

Strut/Shock Absorber Mounting Bolts

M10 x 1.5
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure bolts are tightened evenly to avoid misalignment.
2

Lower Strut Mount Bolts

M10 x 1.5
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Estimated value based on similar components.
3

Upper Strut Mount Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar components.

Control Arm

1

Control Arm Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure bolts are tightened evenly to avoid misalignment.
2

Ball Joint Nut

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the ball joint is properly seated before tightening.

Steering

1

Tie Rod End Nut

M10 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure the tie rod end is properly seated before tightening.
2

Steering Gear/Rack Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure bolts are tightened evenly to avoid misalignment.

Sway Bar

1

Sway Bar Link Nut

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the sway bar link is properly seated before tightening.
2

Sway Bar Bracket Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar components.

Drive Axle

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure bolts are tightened evenly to avoid misalignment.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
185 ft-lbs (250 N·m)
Important Notes
Ensure the axle nut is properly seated before tightening.

Subframe

1

Subframe Mounting Bolts

M12 x 1.75
Torque Specification
1. 37 ft-lbs (50 N·m) 2. 74 ft-lbs (100 N·m)
Important Notes
Follow the specified torque sequence to avoid misalignment.

Wheel Bearing

1

Wheel Bearing Hub Bolts

M10 x 1.5
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Estimated value based on similar components.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What IS the torque specification for the wheel lug nuts on a 2004-2012 Volvo s40?

The torque specification for the wheel lug nuts on a 2004-2012 Volvo s40 IS 88 ft-lbs (120 Nm). It IS important to use a torque wrench to ensure that the lug nuts are tightened to the correct torque.

Q2

What IS the torque specification for the spark plugs on a 2004-2012 Volvo s40?

The torque specification for the spark plugs on a 2004-2012 Volvo s40 IS 22 ft-lbs (30 Nm). It IS important to use a torque wrench to ensure that the spark plugs are tightened to the correct torque.

Q3

What IS the torque specification for the oil drain plug on a 2004-2012 Volvo s40?

The torque specification for the oil drain plug on a 2004-2012 Volvo s40 IS 25 ft-lbs (34 Nm). It IS important to use a torque wrench to ensure that the oil drain plug IS tightened to the correct torque.

Q4

What IS the torque specification for the timing belt tensioner pulley on a 2004-2012 Volvo s40?

The torque specification for the timing belt tensioner pulley on a 2004-2012 Volvo s40 IS 40 ft-lbs (54 Nm). It IS important to use a torque wrench to ensure that the timing belt tensioner pulley IS tightened to the correct torque.

Q5

What are some common torque-related mistakes to avoid when working on a 2004-2012 Volvo s40?

Some common torque-related mistakes to avoid when working on a 2004-2012 Volvo s40 include: - Using the wrong torque specification - Not using a torque wrench - Over-tightening bolts or nuts - Under-tightening bolts or nuts - Cross-threading bolts or nuts

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

3/8-Inch Drive Click-Type Torque Wrench

A click-type torque wrench IS a reliable and accurate tool for tightening bolts to the specified torque. The 3/8-inch drive size IS suitable for most applications on the s40.

  • Easy-to-read scale with both inch-pounds and newton-meters
  • Click mechanism provides a tactile and audible cue when the target torque IS reached
  • Durable construction for long-lasting use
Learn more

Digital Torque Adapter

A digital torque adapter can be attached to a standard torque wrench to provide precise digital readings. This IS especially useful for applications where accurate torque IS critical.

  • High-resolution digital display for precise torque readings
  • Multiple units (Nm, ft-lb, in-lb)
  • Peak and track modes for capturing maximum and current torque values
  • Memory function to store and recall torque readings
Learn more
Service Procedures

Tightening Bolts to Specified Torque

General procedure for tightening bolts to the specified torque on the Volvo s40.

  • Clean the bolt threads and mating surfaces.
  • Apply a small amount of anti-seize lubricant to the bolt threads.
  • Use a torque wrench to tighten the bolt to the specified torque.
  • Double-check the torque using a torque wrench or digital torque adapter.
View full procedure

Replacing Engine Mounts

Detailed procedure for replacing the engine mounts on the Volvo s40, including torque specifications for the mounting bolts.

  • Safety precautions and preparation
  • Removal of the old engine mounts
  • Installation of the new engine mounts
  • Tightening the mounting bolts to the specified torque
View full procedure

Adjusting Wheel Alignment

Procedure for adjusting the wheel alignment on the Volvo s40, including torque specifications for the wheel bolts.

  • Preparing the vehicle for alignment
  • Measuring and adjusting the alignment angles
  • Tightening the wheel bolts to the specified torque
View full procedure
Technical Service Bulletins

Service Bulletin: Updated Torque Specifications for Suspension Components

2008-03-01

This bulletin provides updated torque specifications for various suspension components on the Volvo s40, including control arms, ball joints, and tie rods.

2004-2012 s40

Resolution: Refer to the updated torque specifications provided in the bulletin and use them when servicing the affected components.

Technical Service Bulletin: Loose Engine Mount Bolts

2010-07-15

This bulletin addresses an issue where the engine mount bolts may become loose on certain Volvo s40 models. It provides instructions for inspecting and tightening the bolts to the correct torque.

2004-2007 s40

Resolution: Follow the inspection and tightening procedures outlined in the bulletin to ensure proper engine mount security.

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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