Volvo Volvo S80 2006-2016 Drivetrain Bolt Torque Specifications & Fastener Values
Volvo Volvo S80 2006-2016

Volvo Volvo S80 2006-2016 Drivetrain Bolt Torque Specifications

Detailed torque specifications for the drivetrain components of the 2006-2016 Volvo S80, including axle bolts, driveshaft bolts, and transmission bolts.

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

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

Engine Transmission Interface

Components that connect the engine to the transmission, ensuring proper power transfer and alignment.

1

Flywheel Bolts

M10 x 1.25
Torque Value
59 ft-lbs (80 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to maintain even pressure.
2

Torque Converter Bolts

M8 x 1.25
Torque Value
37 ft-lbs (50 N·m)
Important Notes
Ensure the torque converter is properly seated before tightening.
3

Transmission Bellhousing Bolts

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

Transmission Components

Components related to the transmission, including mounting, oil pan, and fluid service points.

1

Transmission Mounting Bolts

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

Transmission Oil Pan Bolts

M8 x 1.25
Torque Value
61 ft-lbs (83 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
3

Transmission Drain and Fill Plugs

M12 x 1.75
Torque Value
29 ft-lbs (40 N·m)
Important Notes
Ensure the sealing washer is in good condition before installation.

Drive Axles And Shafts

Components that transfer power from the transmission or differential to the wheels.

1

Drive Axle/Half Shaft Bolts

M12 x 1.5
Torque Value
74 ft-lbs (100 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 Value
185 ft-lbs (250 N·m)
Important Notes
Ensure the axle nut is properly seated and staked after tightening.
3

Propeller/Drive Shaft Bolts

M10 x 1.5
Torque Value
61 ft-lbs (83 N·m)
Important Notes
Ensure the drive shaft is properly aligned with the transmission and differential.

Differential And Transfer Case

Components that distribute power to the wheels and ensure proper lubrication.

1

Differential Mounting Bolts

M12 x 1.5
Torque Value
74 ft-lbs (100 N·m)
Important Notes
Ensure the differential is properly aligned with the chassis.
2

Differential Drain/Fill Plug

M12 x 1.75
Torque Value
37 ft-lbs (50 N·m)
Important Notes
Ensure the sealing washer is in good condition before installation.
3

Transfer Case Mounting Bolts

M12 x 1.5
Torque Value
74 ft-lbs (100 N·m)
Important Notes
Ensure the transfer case is properly aligned with the chassis.
4

Transfer Case Drain/Fill Plug

M12 x 1.75
Torque Value
37 ft-lbs (50 N·m)
Important Notes
Ensure the sealing washer is in good condition before installation.

Rear Axle And Hub

Components that secure the rear axle and wheel hub, ensuring proper power transfer to the wheels.

1

Rear Axle Hub Bolts

M12 x 1.5
Torque Value
74 ft-lbs (100 N·m)
Important Notes
Ensure the hub is properly seated on the axle.

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 drivetrain bolts on a 2006-2016 Volvo S80?

The torque specifications for drivetrain bolts vary depending on the specific component. For example, the axle nut typically requires 60-70 Nm (44-52 lb-ft) plus an additional 90° turn, while the driveshaft bolts should be torqued to 35-40 Nm (26-30 lb-ft). Always refer to the vehicle's service manual for exact specifications.

Q2

How often should drivetrain bolts be checked for proper torque?

Drivetrain bolts should be checked during routine maintenance or after any drivetrain-related repairs. For example, if the vehicle has undergone suspension work or driveshaft replacement, it's crucial to verify the torque of all related bolts. Additionally, if you notice unusual vibrations or noises, inspect the bolts immediately.

Q3

Can I reuse drivetrain bolts after removal?

It depends on the bolt type and condition. Some bolts, like axle nuts, are designed for one-time use and should be replaced after removal. Others, such as driveshaft bolts, can be reused if they are in good condition and not stretched or damaged. Always follow the manufacturer's recommendations.

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

Precise torque measurement for drivetrain bolts.

  • Adjustable torque settings
  • LCD display for accurate readings
Learn more

Thread Locker

Secures bolts to prevent loosening.

  • High-strength formula
  • Heat resistant
Learn more

Torque Angle Gauge

Measures bolt rotation angle during tightening.

  • Magnetic base for easy attachment
  • Clear angle markings
Learn more
Service Procedures

Drivetrain Bolt Torque Specification Procedure

Step-by-step guide for applying correct torque to drivetrain bolts.

  • Locate the drivetrain bolts specified in the torque chart.
  • Clean the bolt threads and apply thread locker if required.
  • Use a digital torque wrench to tighten bolts to the specified torque.
  • For angle-tightened bolts, use a torque angle gauge to ensure proper rotation.
  • Double-check torque values with a calibrated wrench.
View full procedure

Drivetrain Component Inspection

Inspect drivetrain components for wear or damage before torque application.

  • Remove the drivetrain cover and visually inspect components.
  • Check for cracks, rust, or other signs of wear.
  • Replace any damaged components before proceeding.
  • Clean the mating surfaces to ensure proper alignment.
View full procedure
Technical Service Bulletins

Drivetrain Bolt Loosening Issue

2014-03-15

Reports of drivetrain bolts loosening over time in certain models.

2006-2014 Volvo S80

Resolution: Apply high-strength thread locker and ensure bolts are torqued to the updated specifications.

Incorrect Drivetrain Bolt Torque Specifications

2012-07-22

Erroneous torque values provided in early service manuals.

2006-2011 Volvo S80

Resolution: Refer to the updated torque chart provided by Volvo Technical Support.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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