Volvo Vehicle Models Volvo XC90 2015-present Torque Specifications
Volvo Vehicle Models Volvo XC90 2015-present

Volvo Vehicle Models Volvo XC90 2015-present Torque Specifications

Complete Volvo Vehicle Models Volvo XC90 2015-present 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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2.0l Engine

Torque specifications for 2.0L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 18 ft-lbs (25 N·m) 2. 90°
Important Notes
Follow the specified torque sequence to ensure proper sealing and prevent warping.
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

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure rocker arms are properly aligned before tightening.

Crankshaft And Connecting Rods

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Follow the specified torque sequence to ensure proper alignment.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure connecting rods are properly aligned before tightening.
3

Flywheel Bolts

M12 x 1.5
Torque Specification
51 ft-lbs (70 N·m)
Important Notes
Ensure flywheel is properly aligned before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper tensioning of the timing belt/chain before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
53 ft-lbs (72 N·m)
Important Notes
Ensure camshaft timing is correct 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 (25 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
37 ft-lbs (50 N·m)
Important Notes
Follow the specified torque sequence to ensure proper crankshaft alignment.
2

Connecting Rod Nuts

M8 x 1.0
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure the connecting rod bearings are properly installed before tightening.

Timing System

1

Camshaft Sprocket Bolt

M12 x 1.5
Torque Specification
53 ft-lbs (72 N·m)
Important Notes
Ensure the timing marks are aligned before tightening.
2

Timing Belt Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the timing belt is properly tensioned before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Follow the specified torque sequence to ensure a proper seal.
2

Exhaust Manifold Bolts

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

Fuel 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 with the injectors before tightening.
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 tightening.

Cooling System

1

Water Pump Bolts

M8 x 1.25
Torque Specification
11 ft-lbs (15 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 is properly seated before tightening.

2.0l I4 Turbo Engine

Torque specifications for 2.0L-I4-TURBO Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.25
Torque Specification
1. 18 ft-lbs (25 N·m) 2. 90°
Important Notes
Follow the specified torque sequence to ensure proper sealing and prevent warping.
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

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure rocker arms are properly aligned before tightening.

Crankshaft And Connecting Rods

1

Main Bearing Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Follow the specified torque sequence to ensure proper alignment.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Ensure connecting rods are properly aligned before tightening.
3

Flywheel Bolts

M12 x 1.5
Torque Specification
51 ft-lbs (70 N·m)
Important Notes
Ensure flywheel is properly aligned before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure proper tensioning of the timing belt/chain before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
53 ft-lbs (72 N·m)
Important Notes
Ensure camshaft timing is correct before tightening.

Body

Torque specifications for Body

Suspension System

1

Strut/Shock Absorber Mounting Bolts

M12 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure proper alignment during torque application.
2

Control Arm Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Critical for suspension alignment and vehicle stability.
3

Ball Joint Nut

M10 x 1.25
Torque Specification
63 ft-lbs (86 N·m)
Important Notes
Ensures safe steering and suspension operation.
4

Tie Rod End Nut

M8 x 1.25
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Critical for accurate steering response.
5

Sway Bar Link Nut

M8 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensures stability during cornering.
6

Steering Gear/Rack Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Critical for steering precision and safety.

Wheels And Hubs

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
103 ft-lbs (140 N·m)
Important Notes
Ensures wheels are securely attached to the hubs.

Interior Safety Components

1

Seat Mounting Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on typical specifications. Critical for passenger safety.
2

Seat Belt Anchor Bolts

M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on typical specifications. Ensures seat belt functionality.

Exterior Body Components

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Prevents fuel tank detachment and ensures safety.
2

Roof Rack Mounting Bolts

M6 x 1.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value based on typical specifications. Ensures load stability.
3

Tailgate/Hatch Bolts

M6 x 1.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value based on typical specifications. Ensures proper alignment and operation.
4

Bumper Mounting Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on typical specifications. Ensures stability and proper alignment.

Brakes

Torque specifications for Brakes

Brake Caliper

1

Brake Caliper Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure bolts are tightened in a cross pattern to prevent misalignment.
2

Brake Caliper Mounting Bracket Bolts

M12 x 1.75
Torque Specification
83 ft-lbs (113 N·m)
Important Notes
Critical for maintaining brake pad alignment.

Brake Disc Drum

1

Brake Disc/Drum Retaining Bolts

M10 x 1.25
Torque Specification
69 ft-lbs (94 N·m)
Important Notes
Prevents warping or misalignment of the disc/drum.

Brake Hose

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure a leak-free connection by using new sealing washers on both sides of the banjo fitting.

Master Cylinder Booster

1

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Prevents leaks or misalignment of the master cylinder.
2

Brake Booster Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensures proper attachment to the firewall.

Brake Pedal

1

Brake Pedal Pivot Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensures smooth pedal operation without play.

Abs Sensor

1

ABS Sensor Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Prevents false readings or ABS system malfunctions.

Wheel

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
103 ft-lbs (140 N·m)
Important Notes
Always tighten in a star pattern to ensure even seating of the wheel.

Drivetrain

Torque specifications for Drivetrain

Engine Related Components

1

Flywheel Bolts

M12 x 1.5
Torque Specification
51 ft-lbs (70 N·m)
Important Notes
Ensure the flywheel is properly aligned with the crankshaft before tightening.
2

Crankshaft Pulley/Harmonic Balancer Bolt

M16 x 1.5
Torque Specification
96 ft-lbs (130 N·m)
Important Notes
Use a holding tool to prevent the crankshaft from rotating during tightening.

Transmission Components

1

Transmission Mounting Bolts

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

Transmission Bellhousing Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on similar components. Tighten in a crisscross pattern.
3

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Avoid over-tightening to prevent damage to the oil pan.
4

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Use new crush washers to ensure a proper seal.

Drivetrain Components

1

Drive Axle/Half Shaft Bolts

M12 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure proper alignment of the axle to the differential and wheel hub.
2

CV Joint/Axle Nut

M20 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
Important Notes
Use a socket and breaker bar for sufficient leverage.
3

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure proper alignment of the drive shaft to the transmission and differential.
4

Driveshaft Center Support Bearing Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on similar components. Tighten in a crisscross pattern.

Differential And Transfer Case

1

Differential Drain/Fill Plug

M12 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Use new crush washers to ensure a proper seal.
2

Rear Differential Mounting Bolts

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Estimated value based on similar components. Tighten in a crisscross pattern.
3

Transfer Case Drain/Fill Plug

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Use new crush washers to ensure a proper seal.
4

Transfer Case Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on similar components. Tighten in a crisscross pattern.

Electrical

Torque specifications for Electrical

Starter Motor

1

Starter Motor Mounting Bolts

M8 x 1.25
Torque Specification
37 ft-lbs (50 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
37 ft-lbs (50 N·m)
Important Notes
Ensure the alternator is properly tensioned with the drive belt before final tightening.

Battery System

1

Battery Terminal Nuts

M6 x 1.0
Torque Specification
4.42 ft-lbs (6 N·m)
Important Notes
Avoid overtightening 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.

Ground System

1

Ground Strap Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar electrical grounding components.

Power Distribution

1

Power Distribution Box Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar electrical mounting components.

Electrical Connectors

1

Electrical Connector Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar electrical connector components.

Emissions Sensors

Torque specifications for Emissions_sensors

Egr Valve

1

EGR Valve Mounting Bolts

M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Ensure the EGR valve gasket is properly aligned before tightening.

Exhaust Manifold

1

Exhaust Manifold Bolts

M10 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Torque the bolts in a crisscross pattern to ensure even sealing.
2

Exhaust Manifold to Cylinder Head Bolts

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

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Ensure the catalytic converter is properly aligned before tightening.

Exhaust Pipe

1

Exhaust Pipe to Exhaust Manifold Bolts

M10 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Ensure the exhaust pipe is properly aligned before tightening.

Sensors

1

O2 Sensor Bolts

M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure the O2 sensor is properly seated in the exhaust pipe.
2

EGT Sensor Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the EGT sensor is properly seated in the exhaust manifold.
3

NOx Sensor Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the NOx sensor is properly seated in the exhaust pipe.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold Headers

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

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

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

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

Muffler

1

Muffler to Exhaust Pipe Bolts

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

Oxygen Sensor

1

Oxygen Sensor (O2 Sensor) Mounting Bolts

M12 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure sensor is properly aligned before tightening.

Heat Shield

1

Exhaust Heat Shield Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Avoid over-tightening to prevent damage to the heat shield.

Exhaust Hanger

1

Exhaust Hanger Bolts

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

Exhaust Flange

1

Exhaust Flange Bolts

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

Fuel

Torque specifications for Fuel

Fuel Delivery System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure even tightening to prevent warping of the fuel rail.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure injectors are properly seated before tightening.
3

High-Pressure Fuel Pump Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar M8 bolts in fuel systems.
4

Fuel Pressure Regulator Bolts

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

Fuel Storage System

1

Fuel Pump Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the fuel pump is properly seated in the tank or bracket.
2

Fuel Tank Strap Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure the fuel tank is properly aligned before tightening.
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 with the tank and body.
4

Fuel Tank Sender Unit Bolts

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

Fuel Filtration System

1

Fuel Filter Bolt/Nut

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

Fuel Line Connections

1

Fuel Line Fittings

M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Estimated value based on similar M8 fittings in fuel systems.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute clamping force.

Ac Lines

1

A/C Line Fittings

M8 x 1.25
Torque Specification
14 ft-lbs (19 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
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
14 ft-lbs (19 N·m)
Important Notes
Estimated value based on similar M8 fittings in HVAC systems.

Hvac Control Module

1

HVAC Control Module 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.

Suspension

Torque specifications for Suspension

Strut Shock Absorber

1

Upper Strut Mount Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on similar components.
2

Strut/Shock Absorber Mounting Bolts

M12 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure proper alignment before torquing.
3

Lower Shock Mounting Bolts

M12 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Estimated value based on similar components.

Control Arms

1

Control Arm Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Use a crisscross pattern for even torque distribution.
2

Ball Joint Nut

M12 x 1.25
Torque Specification
63 ft-lbs (86 N·m)
Important Notes
Ensure the ball joint is properly seated before torquing.

Steering

1

Tie Rod End Nut

M10 x 1.25
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Ensure the tie rod end is properly seated before torquing.
2

Steering Gear/Rack Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Use a crisscross pattern for even torque distribution.

Stabilizer Bar

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 seated before torquing.

Rear Suspension

1

Trailing Arm Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Use a crisscross pattern for even torque distribution.
2

Track Rod Bolts

M10 x 1.25
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Estimated value based on similar components.

Wheels

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
103 ft-lbs (140 N·m)
Important Notes
Use a star pattern for even torque distribution.

Subframe

1

Subframe Bolts

M14 x 1.5
Torque Specification
103 ft-lbs (140 N·m)
Important Notes
Use a crisscross pattern for even torque distribution.

Tg 81 Transmission

Torque specifications for Tg 81 Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute load.

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 and ensure the oil pan surface is clean before installation.

Fluid Plugs

1

Transmission Drain Plug

M12 x 1.75
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure the drain plug washer is replaced to prevent leaks.
2

Transmission Fill Plug

M12 x 1.75
Torque Specification
29 ft-lbs (40 N·m)
Important Notes
Ensure the fill plug washer is replaced to prevent leaks.

Drive Axle

1

Drive Axle/Half Shaft Bolts

M12 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure the axle is properly seated before tightening bolts.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
Important Notes
Use a new cotter pin after tightening the axle nut.

Propeller Shaft

1

Propeller/Drive Shaft Bolts

M10 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure the drive shaft is properly aligned before tightening bolts.

Torque Converter

1

Torque Converter Bolts

M8 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the torque converter is properly seated before tightening bolts.

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 bolts.

Shift Linkage

1

Transmission Shift Linkage Bolts

M6 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the shift linkage is properly aligned before tightening bolts.

Crossmember

1

Transmission Crossmember Bolts

M12 x 1.75
Torque Specification
59 ft-lbs (80 N·m)
Important Notes
Ensure the crossmember is properly aligned with the frame before tightening bolts.

Cooler Lines

1

Transmission Cooler Line Fittings

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the cooler lines are properly seated before tightening fittings.

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 are the recommended torque specifications for the wheel lug nuts on a 2015-Present Volvo XC90?

108 Nm (80 lb-ft)

Q2

Can I use an impact wrench to tighten lug nuts?

Yes, but it IS important to carefully follow the specified torque and use a calibrated torque wrench to avoid overtightening.

Q3

What IS the torque spec for the spark plugs on a Volvo XC90?

25 Nm (18 lb-ft)

Q4

What are the proper torque values for the engine oil drain plug?

25 Nm (18 lb-ft)

Q5

What IS the torque value for the fuel injector bolts?

12 Nm (9 lb-ft)

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 xc90.

  • 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

Suspension Component Tightening Procedure

Technical procedure for tightening suspension components on the 2015-Present Volvo xc90, including torque specifications.

  • 1. Raise and support the vehicle using appropriate stands.
  • 2. Remove the wheel from the side you will be working on.
  • 3. Identify the suspension components that need to be tightened.
  • 4. Use the digital torque wrench to tighten each fastener to the specified torque.
  • 5. Double-check all fasteners to ensure they are properly tightened.
  • 6. Reinstall the wheel and lower the vehicle.
View full procedure
Technical Service Bulletins

Driveline Vibration Fix

2021-06-15

Technical Service Bulletin addressing driveline vibrations on certain 2015-2019 Volvo xc90 models, including torque specifications for affected components.

2015-2019 xc90

Resolution: 1. Inspect the driveshaft for any visible damage or excessive play. 2. If damage or play IS found, replace the driveshaft. 3. Tighten the driveshaft bolts to the specified torque (80 Nm). 4. Road test the vehicle to verify that the vibration has been eliminated.

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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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