Volvo Vehicle Models Volvo C30 2006-2013 Torque Specifications
Volvo Vehicle Models Volvo C30 2006-2013

Volvo Vehicle Models Volvo C30 2006-2013 Torque Specifications

Complete Volvo Vehicle Models Volvo C30 2006-2013 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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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. 18 ft-lbs (24 N·m) 2. 90°
Important Notes
Follow the manufacturer's torque sequence for proper sealing.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.
3

Camshaft Sprocket Bolt

M12 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure proper alignment of the timing marks before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Follow the manufacturer's torque sequence for proper crankshaft alignment.
2

Connecting Rod Nuts

M8 x 1.0
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure proper alignment of the connecting rod caps before tightening.
3

Flywheel Bolts

M12 x 1.25
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure the flywheel is properly seated on the crankshaft flange.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the intake manifold gasket is properly seated before tightening.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.

Lubrication System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2

Oil Filter Housing Bolt

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

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Replace the crush washer to ensure a proper seal.

Cooling System

1

Water Pump Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the water pump gasket is properly seated before tightening.
2

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the thermostat housing gasket is properly seated 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. 18 ft-lbs (24 N·m) 2. 90°
Important Notes
Follow the manufacturer's specified torque sequence to ensure even clamping force.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 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
47 ft-lbs (64 N·m)
Important Notes
Follow the manufacturer's specified torque sequence to ensure even clamping force.
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 the tensioner is properly aligned before tightening.
2

Camshaft Sprocket Bolt

M12 x 1.5
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure the camshaft sprocket is properly aligned before tightening.

Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the drain plug washer is in good condition before tightening.

Accessory Drives

1

Alternator Mounting Bolts

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

A/C Compressor Mounting Bolts

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

2.4l I5 Engine

Torque specifications for 2.4L-I5 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 18 ft-lbs (24 N·m) 2. 90°
Important Notes
Follow the manufacturer's specified torque sequence for proper sealing.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
47 ft-lbs (64 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.

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 1.5
Torque Specification
52 ft-lbs (70 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
16 ft-lbs (22 N·m)
Important Notes
Ensure the intake manifold gasket is properly seated.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated.

Lubrication System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the oil pan gasket is properly seated.
2

Oil Pump Bolts

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

2.5l I5 Engine

Torque specifications for 2.5L-I5 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 18 ft-lbs (24 N·m) 2. 90°
Important Notes
Follow the manufacturer's specified torque sequence for proper sealing.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 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
47 ft-lbs (64 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 rods before tightening.

Timing System

1

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure proper alignment of the timing marks before tightening.
2

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.

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 Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar oil line connections.

Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the drain plug washer is in good condition.

2.5l I5 Turbo Engine

Torque specifications for 2.5L-I5-TURBO Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 18 ft-lbs (24 N·m) 2. 90°
Important Notes
Follow the manufacturer's specified torque sequence for proper sealing.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 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
47 ft-lbs (64 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 rods before tightening.

Timing System

1

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure proper alignment of the timing marks before tightening.
2

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.

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 Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar oil line connections.

Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the drain plug washer is in good condition.

Aw55 Transmission

Torque specifications for Aw55 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M10 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Ensure proper alignment of the transmission before tightening. Torque in a crisscross pattern.

Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Use a new gasket or sealant as specified. Torque in a crisscross pattern to ensure even sealing.

Fluid Plugs

1

Transmission Drain Plug

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Replace the crush washer if applicable. Ensure the plug is clean before installation.
2

Transmission Fill Plug

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Replace the crush washer if applicable. Ensure the plug is clean before installation.

Drive Axle

1

Drive Axle/Half Shaft Bolts

M12 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure proper alignment of the axle before tightening. Torque in a star pattern.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
Important Notes
Use a new cotter pin if applicable. Ensure the nut is clean before installation.

Drive Shaft

1

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure proper alignment of the drive shaft before tightening. Torque in a star pattern.

Starter Motor

1

Starter Motor Mounting Bolts

M8 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure proper alignment of the starter motor with the flywheel before tightening.

Torque Converter

1

Torque Converter Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure proper alignment of the torque converter with the flexplate before tightening.

Bellhousing

1

Transmission Bellhousing Bolts

M10 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Ensure proper alignment of the bellhousing with the engine block before tightening.

Valve Body

1

Transmission Valve Body Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Use a new gasket or sealant as specified. Torque in a crisscross pattern to ensure even sealing.

Shift Linkage

1

Transmission Shift Linkage Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment of the shift linkage with the transmission before tightening.

Cooler Lines

1

Transmission Cooler Line Fittings

M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment of the cooler lines with the transmission before tightening.

Body

Torque specifications for Body

Suspension And Steering

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
77 ft-lbs (105 N·m)
Important Notes
Ensure lug nuts are tightened in a star pattern to evenly distribute torque.
2

Strut/Shock Absorber Mounting Bolts

M10 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Ensure suspension is at ride height before final torque application.
3

Control Arm Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure suspension is at ride height before final torque application.
4

Ball Joint Nut

M12 x 1.25
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure ball joint is properly seated before torque application.
5

Tie Rod End Nut

M10 x 1.25
Torque Specification
48 ft-lbs (65 N·m)
Important Notes
Ensure tie rod end is properly seated before torque application.
6

Sway Bar Link Nut

M8 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure sway bar link is properly seated before torque application.
7

Steering Gear/Rack Bolts

M12 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure steering rack is properly aligned before torque application.

Fuel System

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure fuel tank is properly aligned before torque application.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure fuel filler neck is properly aligned before torque application.

Electrical System

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Ensure battery terminals are clean and properly seated before torque application.

Body Panels And Structure

1

Body Panel Bolts (e.g., fender, door hinges, hood, trunk)

M6 x 1.0
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on typical body panel bolt sizes. Ensure panels are properly aligned before torque application.
2

Seat Belt Anchorage Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Critical for passenger safety. Ensure bolts are properly seated before torque application.
3

Roof Rack Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure roof rack is properly aligned before torque application.
4

Bumper Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure bumper is properly aligned before torque application.
5

Door Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure door is properly aligned before torque application.
6

Hood and Trunk Lid Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure hood and trunk lid are properly aligned before torque application.
7

Subframe Mounting Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure subframe is properly aligned before torque application. Follow manufacturer-recommended torque sequence.

Brakes

Torque specifications for Brakes

Brake Caliper System

1

Brake Caliper Bolts

M10 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure caliper is properly aligned before torquing.
2

Brake Caliper Mounting Bracket Bolts

M12 x 1.5
Torque Specification
63 ft-lbs (85 N·m)
Important Notes
Ensure bracket is properly seated on the steering knuckle or axle.

Brake Rotor Drum System

1

Brake Disc/Drum Retaining Bolts

M12 x 1.25
Torque Specification
69 ft-lbs (94 N·m)
Important Notes
Ensure rotor or drum is properly seated on the hub before torquing.

Wheel Attachment System

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
77 ft-lbs (105 N·m)
Important Notes
Always torque lug nuts in a star pattern to ensure even clamping force.

Brake Hydraulic System

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the banjo bolt is properly aligned with the brake hose and caliper.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the master cylinder is properly seated on the brake booster.
3

Brake Booster Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the brake booster is properly seated on the firewall.

Brake Pedal System

1

Brake Pedal Assembly Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the brake pedal operates smoothly after installation.

Abs System

1

ABS Sensor Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the ABS sensor is properly positioned for accurate wheel speed readings.

Drivetrain

Torque specifications for Drivetrain

Engine To Transmission

1

Flywheel Bolts

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

Crankshaft Pulley/Harmonic Balancer Bolt

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Use a holding tool to prevent the crankshaft from rotating during tightening.
3

Transmission Bellhousing Bolts

M10 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure proper alignment of the transmission to the engine.

Transmission

1

Transmission Mounting Bolts

M10 x 1.25
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Ensure the transmission is properly aligned with the chassis.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Over-tightening can damage the oil pan or gasket.
3

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Use a new crush washer to ensure a proper seal.

Drivetrain Connections

1

Drive Axle/Half Shaft Bolts

M12 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure proper alignment of the axles before tightening.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
Important Notes
Use a holding tool to prevent the axle from rotating during tightening.
3

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure proper alignment of the drive shaft before tightening.

Differential And Transfer Case

1

Differential Mounting Bolts

M12 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure proper alignment of the differential before tightening.
2

Differential Drain/Fill Plug

M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Use a new crush washer to ensure a proper seal.
3

Transfer Case Mounting Bolts

M12 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure proper alignment of the transfer case before tightening.
4

Transfer Case Drain/Fill Plug

M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Use a new crush washer to ensure a proper seal.

Clutch Assembly

1

Clutch Pressure Plate Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment of the pressure plate before tightening.

Rear Axle

1

Rear Axle Hub Bolts

M12 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure proper alignment of the hub before tightening.

Electrical

Torque specifications for Electrical

Starter Motor

1

Starter Motor Mounting Bolts

M10 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure the starter motor is properly aligned with the engine block before tightening.

Alternator

1

Alternator Mounting Bolts

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

Battery

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Avoid over-tightening to prevent damage to the battery terminals.

Ignition System

1

Ignition Coil Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the ignition coil is properly seated before tightening.

Ac System

1

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the A/C compressor is properly aligned with the drive belt before tightening.
2

A/C Line Fittings

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure the fittings are properly aligned before tightening to prevent leaks.

Grounding System

1

Ground Strap Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the ground strap is properly positioned before tightening.

Fuse Box

1

Fuse Box Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the fuse box is properly aligned before tightening.

Ecu

1

ECU Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the ECU is properly seated before tightening.

Wiring Harness

1

Wiring Harness Clamp Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the wiring harness is properly routed before tightening.

Lighting System

1

Headlight Housing Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the headlight housing is properly aligned before tightening.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust Manifold

1

Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Ensure proper sequence to avoid warping the manifold.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper sequence to avoid warping the manifold.

Exhaust Pipe

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
2

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Ensure gasket is properly seated before tightening.

Oxygen Sensors

1

Oxygen (O2) Sensor Threads

M18 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure sensor is properly seated before tightening.
2

Downstream O2 Sensor Mounting Bolts

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

Egr System

1

EGR Valve Bolts

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

EGR Cooler Mounting Bolts

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

Heat Shield

1

Catalytic Converter Heat Shield Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure shield is properly aligned before tightening.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold and Headers

1

Exhaust Manifold/Headers to Engine Block Bolts

M12 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Secure the exhaust manifold/headers to the engine block, ensuring a leak-free connection and proper exhaust gas flow.
2

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Attach the exhaust manifold/headers to the cylinder head, maintaining a secure connection and preventing exhaust leaks.

Exhaust Pipe and Flanges

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Connect the exhaust pipe to the exhaust manifold/headers, ensuring a secure and leak-free connection.
2

Exhaust Pipe Flange Bolts

M10 x 1.25
Torque Specification
1. 20 ft-lbs (27 N·m) 2. 30 ft-lbs (40 N·m)
Important Notes
Connect the exhaust pipe flanges, ensuring a secure and leak-free connection between exhaust system components. Estimated torque values.

Catalytic Converter and Muffler

1

Catalytic Converter to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Attach the catalytic converter to the exhaust pipe, maintaining a secure connection and preventing exhaust leaks.
2

Muffler to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Connect the muffler to the exhaust pipe, ensuring a secure and leak-free connection.

Oxygen Sensor and Heat Shield

1

Oxygen Sensor Bolts

M8 x 1.25
Torque Specification
1. 15 ft-lbs (20 N·m) 2. 20 ft-lbs (27 N·m)
Important Notes
Secure the oxygen sensor in place, allowing it to monitor exhaust gas composition and provide accurate readings to the engine control unit. Estimated torque values.
2

Heat Shield Bolts

M6 x 1.0
Torque Specification
1. 10 ft-lbs (14 N·m) 2. 15 ft-lbs (20 N·m)
Important Notes
Secure the heat shields in place, protecting surrounding components from excessive heat generated by the exhaust system. Estimated torque values.

Exhaust System Mounting

1

Exhaust System Mounting Bolts

M14 x 1.5
Torque Specification
1. 20 ft-lbs (27 N·m) 2. 30 ft-lbs (40 N·m)
Important Notes
Secure the exhaust system components, such as the exhaust manifold, catalytic converter, and muffler, to the vehicle's chassis or engine block, ensuring proper alignment and preventing damage. Estimated torque values.

Fuel

Torque specifications for Fuel

Fuel Rail System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the fuel rail is properly aligned before torquing.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the injectors are properly seated before torquing.

Fuel Delivery System

1

Fuel Pump Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the fuel pump is properly aligned before torquing.
2

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the fuel tank is properly supported before torquing.
3

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the filler neck is properly aligned before torquing.
4

Fuel Filter Bolt/Nut

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the fuel filter is properly aligned before torquing.
5

High-Pressure Fuel Pump Mounting 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.
6

Fuel Pressure Regulator Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the fuel pressure regulator is properly aligned before torquing.
7

Fuel Line Fittings

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

Fuel Tank Sender Unit Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the fuel tank sender unit is properly aligned before torquing.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.

Refrigerant Lines

1

A/C Line Fittings

M8 x 1.25
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Use a backup wrench to prevent twisting of the refrigerant lines during tightening.

Evaporator Housing

1

Evaporator Housing Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 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
7 ft-lbs (10 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
8 ft-lbs (11 N·m)
Important Notes
Use a backup wrench to prevent twisting of the heater core tubes during tightening.

Control Panel

1

HVAC Control Panel Mounting Screws

M4 x 0.7
Torque Specification
2 ft-lbs (3 N·m)
Important Notes
Estimated value based on similar M4 screws in electronic components.

Suspension

Torque specifications for Suspension

Strut Shock Absorber

1

Strut/Shock Absorber Mounting Bolts

M10 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Ensure bolts are tightened evenly to prevent misalignment.
2

Strut Tower Mounting Bolts

M10 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on similar strut mounting bolts.

Control Arm System

1

Control Arm Bolts

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure bolts are tightened evenly to prevent misalignment.
2

Lower Suspension Arm Bolts

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Estimated value based on similar control arm bolts.

Steering System

1

Ball Joint Nut

M12 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure the ball joint is properly seated before tightening.
2

Tie Rod End Nut

M10 x 1.25
Torque Specification
48 ft-lbs (65 N·m)
Important Notes
Ensure the tie rod end is properly aligned before tightening.
3

Steering Gear/Rack Bolts

M12 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure the steering rack is properly aligned before tightening.

Sway Bar System

1

Sway Bar Link Nut

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

Drivetrain System

1

Drive Axle/Half Shaft Bolts

M12 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure the drive axle is properly seated before tightening.
2

CV Joint/Axle Nut

M20 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
Important Notes
Ensure the CV joint is properly seated before tightening.

Rear Suspension System

1

Rear Suspension Trailing Arm Bolts

M12 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure the trailing arm is properly aligned before tightening.
2

Rear Hub Carrier Bolts

M12 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure the hub carrier is properly aligned before tightening.

Subframe System

1

Subframe Mounting Bolts

M12 x 1.5
Torque Specification
1. 37 ft-lbs (50 N·m) 2. 74 ft-lbs (100 N·m)
Important Notes
Follow the specified torque sequence to ensure proper alignment.

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 recommended torque for the lug nuts on a 2006-2013 Volvo c30?

According to Volvo specifications, the torque for the lug nuts on a 2006-2013 Volvo c30 should be 120 Nm (89 ft-lb).

Q2

Do I need to use a torque wrench to tighten the lug nuts?

Yes, it IS highly recommended to use a torque wrench to ensure proper and even tightening of the lug nuts. Using a torque wrench helps prevent over-tightening or under-tightening, which can compromise the safety and performance of the wheels.

Q3

What IS the torque range for the cylinder head bolts on a Volvo c30?

The torque range for the cylinder head bolts on a 2006-2013 Volvo c30 IS 80-100 Nm (59-74 ft-lb). Proper tightening sequence and multiple passes are crucial to ensure an even distribution of force.

Q4

Can I use any type of oil filter wrench to remove the oil filter on my Volvo c30?

While certain types of oil filter wrenches may fit, it IS recommended to use a Volvo-specific oil filter wrench or a cap wrench to ensure a secure grip and prevent damage to the filter housing.

Q5

What IS the torque specification for the spark plugs on a 2013 Volvo c30?

The torque specification for the spark plugs on a 2013 Volvo c30 IS 25 Nm (18 ft-lb). Over-tightening spark plugs can damage the threads or the spark plug itself.

Q6

How often should I check the torque of my wheel bolts?

It IS recommended to check the torque of your wheel bolts every 6 months or 6,000 miles, and especially after any tire rotation or brake work. Loose wheel bolts can pose a significant safety hazard.

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

Digital Torque Wrench (10-100 Nm)

Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the c30.

  • Digital display for accurate readings
  • Audible alarm when target torque IS reached
  • Multiple units (Nm, ft-lb, in-lb)
  • Reversible ratcheting mechanism
Learn more
Service Procedures

Tightening Engine Head Cylinder Bolts

Technical procedure specific to Volvo c30 engine head cylinder bolts

  • 1. **Important:** Clean the bolt threads and the bolt holes in the cylinder head using a thread cleaner and a brush.
  • 2. **Apply** a small amount of clean engine oil to the bolt threads.
  • 3. **Tighten** the bolts to 25 Nm (18.4 ft-lb) in the correct sequence.
  • 4. **Turn** the bolts an additional 90 degrees.
  • 5. **Retighten** the bolts to the specified torque, 120 Nm (88.5 ft-lb).
  • 6. **Safety Reminder:** Do not overtighten the bolts, as this can damage the threads or the cylinder head.
View full procedure

Replacing Front Brake Pads

Technical procedure specific to Volvo c30 front brake pads

  • 1. **Safety First:** Engage the parking brake and chock the rear wheels.
  • 2. **Remove** the front wheel.
  • 3. **Remove** the two caliper mounting bolts.
  • 4. **Carefully** lift the caliper off the rotor.
  • 5. **Remove** the old brake pads and clean the caliper piston and surrounding area.
  • 6. **Install** the new brake pads into the caliper bracket.
  • 7. **Lubricate** the caliper slide pins with high-temperature brake grease.
  • 8. **Reinstall** the caliper and tighten the caliper mounting bolts to 120 Nm (88.5 ft-lb).
  • 9. **Reinstall** the wheel and tighten the lug nuts to 120 Nm (88.5 ft-lb).
  • 10. **Repeat** the process for the other front wheel.
View full procedure
Technical Service Bulletins

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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.
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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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