Volvo Volvo V70 2007-2016 Drivetrain Bolt Torque Specifications & Fastener Values
Volvo Volvo V70 2007-2016

Volvo Volvo V70 2007-2016 Drivetrain Bolt Torque Specifications

Detailed torque specifications for the drivetrain bolts of the 2007-2016 Volvo V70, including transmission, driveshaft, and axle 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 and transmission interface

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

1

Flywheel Bolts

M12 x 1.5
Torque Value
59 ft-lbs (80 N·m)
2

Main Bearing Bolts

M14 x 1.5
Torque Value
65 ft-lbs (88 N·m)

Transmission and drivetrain mounting

Components that secure the transmission and drivetrain to the vehicle, maintaining proper alignment and preventing damage.

1

Transmission Mounting Bolts

M10 x 1.5
Torque Value
37 ft-lbs (50 N·m)
2

Drive Axle/Half Shaft Bolts

M12 x 1.5
Torque Value
41 ft-lbs (55 N·m)

Differential and driveshaft

Components that connect the drivetrain to the wheels, ensuring proper power transfer and alignment.

1

CV Joint/Axle Nut

M20 x 1.5
Torque Value
184 ft-lbs (250 N·m)
2

Propeller/Drive Shaft Bolts

M14 x 1.5
Torque Value
62 ft-lbs (85 N·m)

Transmission maintenance

Components that allow for transmission fluid changes and maintenance, ensuring proper transmission lubrication and performance.

1

Transmission Oil Pan Bolts

M8 x 1.25
Torque Value
6 ft-lbs (8 N·m)
2

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Value
33 ft-lbs (45 N·m)

Estimated torque values

Components with estimated torque values, which may vary depending on the specific vehicle and drivetrain configuration.

1

Differential Cover Bolts

M10 x 1.5
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Estimated value, consult vehicle's service manual or manufacturer's recommendations for accurate torque value.
2

Transfer Case Bolts

M12 x 1.5
Torque Value
35 ft-lbs (47 N·m)
Important Notes
Estimated value, consult vehicle's service manual or manufacturer's recommendations for accurate torque value.
3

Driveshaft Center Bearing Bolts

M10 x 1.5
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Estimated value, consult vehicle's service manual or manufacturer's recommendations for accurate torque value.

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 specification for the drivetrain bolts on a 2007-2016 Volvo V70?

The recommended torque specification for the drivetrain bolts on a 2007-2016 Volvo V70 varies depending on the specific bolt and location. However, as a general guideline, the torque specification for the transmission mounts is 40-50 Nm, while the torque specification for the driveshaft bolts is 60-70 Nm. It's essential to consult the repair manual or the manufacturer's instructions for specific torque values.

Q2

Why is it important to follow the recommended torque specification for drivetrain bolts?

Following the recommended torque specification for drivetrain bolts is crucial to ensure the longevity and reliability of the drivetrain system. Over-torquing can damage the bolts, while under-torquing can lead to loose connections, causing vibrations and noise. Proper torque specification ensures a secure connection, reduces the risk of damage, and prevents costly repairs.

Q3

How often should I check the drivetrain bolts for tightness?

It's recommended to check the drivetrain bolts for tightness every 12,000 to 15,000 miles or as specified in the manufacturer's maintenance schedule. Regular checks can help identify any loose connections, allowing for prompt adjustments and preventing potential damage.

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

Torque Wrench

A precision torque wrench for accurate bolt tightening

  • Range: 10-100 Nm
  • Accuracy: ±2%
Learn more

Socket Set

A set of sockets for drivetrain bolt removal and installation

  • Sizes: 10mm, 12mm, 14mm
  • Drive type: 3/8" and 1/2"
Learn more

Breaker Bar

A breaker bar for applying extra torque to stubborn bolts

  • Length: 24"
  • Drive type: 1/2"
Learn more
Service Procedures

Drivetrain Bolt Torque Specification

A step-by-step guide to tightening drivetrain bolts to the correct torque specification

  • Step 1: Locate the drivetrain bolts and ensure they are clean and free of debris
  • Step 2: Apply the recommended torque specification using a torque wrench
  • Step 3: Verify the torque specification using a secondary torque wrench
View full procedure

Drivetrain Bolt Replacement

A step-by-step guide to replacing drivetrain bolts

  • Step 1: Remove the old bolt using a socket and breaker bar
  • Step 2: Inspect the bolt hole for damage or debris
  • Step 3: Install the new bolt and tighten to the recommended torque specification
View full procedure
Technical Service Bulletins

Drivetrain Bolt Torque Specification Update

2012-07-15

An update to the drivetrain bolt torque specification for 2007-2012 model year V70s

2007-2012 V70

Resolution: Update the torque specification to 40 Nm for all drivetrain bolts

Drivetrain Bolt Failure

2015-03-01

A technical bulletin regarding drivetrain bolt failure on 2013-2015 model year V70s

2013-2015 V70

Resolution: Inspect and replace drivetrain bolts as necessary, and update the torque specification to 45 Nm

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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