Acura RDX 2013-2018 H6 Transmission Transmission Torque Specifications & Bolt Torque Values
Acura RDX 2013-2018

Acura RDX 2013-2018 H6 Transmission Torque Specifications

Detailed torque specifications for bolts related to the H6 transmission found in the 2013-2018 Acura RDX. Includes case bolts, pan bolts, and mounting 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

Transmission Case

Torque specifications for the main transmission case components.

1

Transmission Case Bolts (M8)

M8 x 1.25
Torque Value
30 ft-lbs (41 N·m)
Important Notes
Estimated value based on typical M8 bolt torque. Tighten in a cross pattern.
2

Transmission Case Bolts (M10)

M10 x 1.5
Torque Value
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on typical M10 bolt torque. Tighten in a cross pattern.

Transmission External

Torque specifications for components mounted to the exterior of the transmission.

1

Transmission Mounting Bolts

M12 x 1.75
Torque Value
47 ft-lbs (64 N·m)
Important Notes
Tighten bolts evenly to ensure proper alignment.
2

Transmission Oil Pan Bolts

M8 x 1.25
Torque Value
8 ft-lbs (11 N·m)
Important Notes
Do not overtighten, as this may damage or distort the oil pan.
3

Transmission Drain and Fill Plugs

TBD - Typically tapered pipe thread
Torque Value
29 ft-lbs (39 N·m)
Important Notes
Use a new sealing washer if required, and do not over tighten.
4

Transmission Fluid Drain/Fill Plug

TBD - Typically tapered pipe thread
Torque Value
29 ft-lbs (39 N·m)
Important Notes
Use a new sealing washer if required, and do not over tighten.
5

Transmission Range Sensor Bolt

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on typical M6 bolt torque. Do not overtighten as the sensor body is fragile.
6

Transmission Cooler Line Fitting Bolt/Nuts

TBD - Highly Variable - Often M10 x 1.5 Banjo Bolt
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on typical M10 banjo bolt torque. Use new crush washers, and torque evenly.

Transmission Internal

Torque specifications for internal transmission components.

1

Transmission Valve Body Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on typical M6 bolt torque. Tighten in a cross pattern.
2

Transmission Solenoid Mounting Bolts

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Estimated value based on typical M6 bolt torque. Do not overtighten, as this could damage the solenoid body.

Driveline

Torque specifications for driveline components connected to the transmission.

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Value
59 ft-lbs (80 N·m)
Important Notes
Tighten bolts evenly to avoid vibration.
2

CV Joint/Axle Nut

TBD - Very Vehicle Specific
Torque Value
181 ft-lbs (245 N·m)
Important Notes
Always use new axle nut. Torque to specification and verify no play in the CV joint/wheel bearing after installing.

Torque Converter

Torque specifications for the torque converter components.

1

Torque Converter Bolts to Flexplate

M10 x 1.5
Torque Value
37 ft-lbs (50 N·m)
Important Notes
Tighten bolts evenly to avoid vibration. Always ensure proper engagement of the converter to the transmission input shaft.

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 happens if I overtighten transmission bolts?

Overtightening can stretch or weaken bolts, potentially leading to thread damage in the transmission case, bolt failure, and fluid leaks. This can necessitate costly repairs, including transmission case replacement in severe cases. For instance, overtightening the bellhousing bolts can cause cracks in the aluminum casing.

Q2

What happens if I undertighten transmission bolts?

Undertightening bolts can lead to fluid leaks, vibrations, and component shifting or separation. For example, undertightening the transmission mount bolts may result in excessive movement during acceleration or deceleration, damaging surrounding components and leading to increased wear.

Q3

Should I use new bolts when working on the transmission?

While not always mandatory for every bolt, it is generally recommended to replace specific bolts, especially torque-to-yield bolts, as they are designed to stretch during tightening and cannot reliably provide the correct clamp load if reused. Always refer to the Acura service manual to determine if bolt replacement is required for the specific location on the H6 transmission.

Q4

How often should I inspect the transmission mounting bolts?

While periodic checks are always good practice, it is recommended to inspect the transmission mounting bolts and other critical fasteners whenever you perform other services that put the transmission under stress such as fluid replacement or a major engine service. Furthermore, it's a good idea to check bolts every 12 months if you live in regions with harsh road conditions or extreme temperatures to ensure proper torque.

Q5

What type of lubricant should I use on transmission bolts?

Unless specifically noted otherwise in the Acura service manual, most transmission bolts do not require any lubricant. Clean, dry threads will ensure accurate torque readings and prevent bolt stretching. Using lubricant on bolts not specified may impact tightening torque. Check your vehicle service manual for specific lubricant instructions.

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 (1/2" Drive)

A calibrated torque wrench is essential for accurate bolt tightening.

  • Accurate torque settings
  • 1/2" drive for most transmission bolts
Learn more

Torque Wrench (3/8" Drive)

Smaller torque wrench for tighter spaces and lower torque bolts.

  • Accurate torque settings
  • 3/8" drive for smaller bolts
Learn more

Socket Set (Metric)

A set of metric sockets to fit the various bolt heads on the transmission.

  • Various sizes of metric sockets
  • Deep and standard sockets
Learn more

Extension Bars

Extension bars for accessing recessed or hard-to-reach bolts.

  • Various lengths for different access points
  • Durable construction
Learn more

Universal Joint

Allows socket to reach bolts at an angle.

  • Flexible movement
  • Allows access in tight spaces
Learn more
Service Procedures

H6 Transmission Mounting Bolt Torque Procedure

Procedure for tightening the transmission mounting bolts to the correct specifications.

  • Locate all transmission mounting bolts connecting the transmission to the engine and frame.
  • Use the appropriate metric socket and torque wrench for each bolt size.
  • Torque all mounting bolts to the following spec: 47 N·m (35 lb-ft).
  • Double-check torque values to ensure all bolts are tightened to the correct specification.
  • Re-check torque spec after 100 miles if necessary
View full procedure

H6 Transmission Fluid Drain Plug Torque Procedure

Procedure for tightening the transmission drain plug to the correct torque.

  • Locate the transmission fluid drain plug.
  • Use the correct metric socket and torque wrench.
  • Torque drain plug to the following spec: 44 N·m (32 lb-ft).
  • Double-check torque value to ensure the drain plug is properly tightened.
View full procedure

H6 Transmission Fill Plug Torque Procedure

Procedure for tightening the transmission fill plug to the correct torque.

  • Locate the transmission fill plug.
  • Use the correct metric socket and torque wrench.
  • Torque fill plug to the following spec: 44 N·m (32 lb-ft).
  • Double-check torque value to ensure the fill plug is properly tightened.
View full procedure

H6 Transmission Side Cover Bolt Torque Procedure

Procedure for tightening the transmission side cover bolts to the correct specifications.

  • Locate all transmission side cover bolts.
  • Use the correct metric socket and a 3/8 inch drive torque wrench.
  • Torque bolts to the following spec: 12 N·m (9 lb-ft).
  • Double check torque spec to make sure all bolts are tightened correctly.
View full procedure
Technical Service Bulletins

Potential Transmission Mounting Bolt Loosening

2016-03-15

Some 2013-2015 RDX models may experience a loosening of the transmission mounting bolts over time. This may result in unusual noises or vibrations.

2013-2015 Acura RDX

Resolution: Inspect the transmission mounting bolts. Ensure proper torque specification and add thread locker where necessary.

H6 Transmission Fluid Leakage From Drain Plug

2017-07-22

Some 2016-2018 Acura RDX models have experienced transmission fluid leakage due to improper torqueing of the transmission drain plug after fluid change. Improper torque can also damage the drain plug.

2016-2018 Acura RDX

Resolution: Ensure drain plug is tightened to proper torque using a torque wrench, and replace washer every time. Inspect drain plug threads and replace if damaged.

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.

Facebook Contact
15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions

Diagnostic

Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.

Repair

Expert in both traditional mechanical repairs and modern vehicle systems.

Additional Expertise

Documentation

Created over 500 detailed repair guides and technical documents.

Training

Conducted technical training sessions and contributed to repair databases.

Certifications & Research

Certifications

  • ASE Master Technician Certification
  • Advanced Diagnostic Specialist
  • Hybrid/Electric Vehicle Systems
  • Performance Tuning Expert

Research & Community

Actively researches emerging technologies and contributes to automotive forums.

Legal Disclaimer

Important information about using this content

Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.

General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
Warranty & Liability

The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.

We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

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.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.

© 2025 Acura Specs. All rights reserved.

Privacy Policy Terms of Service