Acura TLX 2015-2020 Brake System Bolt Torque Specifications
Detailed torque specifications for brake components on the 2015-2020 Acura TLX, including caliper bolts, bracket bolts, and banjo bolts.
Important Information
Safety guidelines and reference information for proper torque application
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
Quick Reference Guide
Common Torque Patterns
Star Pattern
Used for wheels and other circular bolt patterns
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
Common Mistakes to Avoid
Over-tightening
Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.
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.
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
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.
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.
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Torque Wrench (3/8" Drive)
Torque Wrench (1/2" Drive)
Angle Gauge
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
Brake Calipers
Torque specifications for brake caliper components.
1 Brake Caliper Bolts
M12 x 1.75
Brake Caliper Bolts
M12 x 1.75Torque Value
Important Notes
2 Brake Line Banjo Bolt at Caliper
M10 x 1.0
Brake Line Banjo Bolt at Caliper
M10 x 1.0Torque Value
Important Notes
3 Brake Bleeder Screw
M7 x 1.0
Brake Bleeder Screw
M7 x 1.0Torque Value
Important Notes
Brake Caliper Mounting Brackets
Torque specifications for brake caliper mounting bracket components.
1 Brake Caliper Mounting Bracket Bolts
M14 x 1.5
Brake Caliper Mounting Bracket Bolts
M14 x 1.5Torque Value
Important Notes
Brake Discs
Torque specifications for brake disc components.
1 Brake Disc/Drum Retaining Bolts
M6 x 1.0
Brake Disc/Drum Retaining Bolts
M6 x 1.0Torque Value
Important Notes
Brake Lines
Torque specifications for brake line components.
1 Brake Line Banjo Bolt at Master Cylinder/Proportioning Valve
M10 x 1.0
Brake Line Banjo Bolt at Master Cylinder/Proportioning Valve
M10 x 1.0Torque Value
Important Notes
Abs System
Torque specifications for ABS system components.
1 ABS Wheel Speed Sensor Mounting Bolt
M6 x 1.0
ABS Wheel Speed Sensor Mounting Bolt
M6 x 1.0Torque Value
Important Notes
Troubleshooting Guide
Common issues, diagnostic steps, and prevention guidelines
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
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
Diagnostic Steps
Visual inspection, torque verification, thread assessment
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
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
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
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 brake caliper bolts?
What happens if I overtighten brake caliper bolts?
Overtightening brake caliper bolts can stretch or damage the threads on the caliper, bracket, or mounting points. It can also lead to bolt failure and component damage. This can result in brake failure, leading to a loss of braking power or inconsistent brake performance. For instance, imagine the caliper becoming loose while braking at highway speeds, creating a serious safety hazard.
Q2 What happens if I undertighten brake caliper bolts?
What happens if I undertighten brake caliper bolts?
Undertightening brake caliper bolts can cause the caliper to shift during braking, leading to uneven pad wear, noise, and a loss of braking efficiency. If the caliper becomes loose enough, it could detach completely, resulting in total brake failure. Consider a scenario where your caliper bolts loosen after a brake job and you experience a vibration while braking; this could be caused by undertightened caliper bolts.
Q3 Do I need to use new bolts when working on the brakes?
Do I need to use new bolts when working on the brakes?
It's highly recommended to use new bolts, especially torque-to-yield bolts, whenever you disassemble and reassemble brake components. These bolts are designed to stretch upon tightening and should not be reused as their clamping force will be compromised. Reuse may lead to component failure. For example, reusing old caliper bracket bolts may lead to incorrect clamping force and potential failure of the braking system.
Q4 Why are torque specifications important for brake components?
Why are torque specifications important for brake components?
Torque specifications ensure that the correct clamping force is applied to brake components. This clamping force is vital for the system's stability, safety and optimal performance. Too little torque can cause components to loosen, and too much can cause damage. Following torque specifications prevents warping of brake components and ensures reliable stopping power. For example, if wheel nuts are not torqued correctly, the wheel could come off, a very dangerous scenario.
Q5 Should I use anti-seize on brake bolts?
Should I use anti-seize on brake bolts?
While it may seem like a good idea, anti-seize should only be used on the *contact points* of the brakes to prevent squealing and not the threads of brake bolts. The lubricant nature of anti-seize interferes with the proper torque readings as it changes the coefficient of friction which could lead to over tightening. Bolts may be more susceptible to loosening due to the lubrication.
Environmental Considerations
Temperature, humidity, and seasonal effects on torque specifications
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
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
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
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 inch drive)
A calibrated torque wrench is essential for accurately tightening brake components to the manufacturer's specified torque settings. A 1/2 inch drive is recommended for common brake fasteners.
- Click-type or digital display for precise torque settings
- Range capable of 10-100 ft-lbs
- Durable construction
Torque Wrench (3/8 inch drive)
A smaller 3/8 inch drive torque wrench can be helpful for smaller brake fasteners or those in tighter spaces.
- Click-type or digital display for precise torque settings
- Range capable of 5-30 ft-lbs
- Compact size
Socket Set (Metric)
A comprehensive metric socket set is required for accessing and tightening various brake fasteners. Common sizes include 10mm, 12mm, 14mm, 17mm, 19mm, and 22mm.
- Variety of sizes for diverse applications
- Chrome vanadium steel construction for durability
- 6-point sockets for improved grip
Brake Caliper Hanger
Brake caliper hangers are useful to support the brake caliper when it's removed from the rotor, preventing stress on the brake line.
- Sturdy metal construction
- Rubberized hooks to prevent damage
- Universal compatibility
Service Procedures
Front Brake Caliper Bracket Bolt Torque
Procedure for tightening the bolts securing the front brake caliper bracket to the steering knuckle. Ensures proper clamping force for safe braking.
- Locate the two bolts securing the caliper bracket to the steering knuckle.
- Using the correct socket, tighten the bolts to 80 ft-lbs.
- Double-check the torque settings using the calibrated torque wrench.
Front Brake Caliper Guide Pin Bolts Torque
Procedure for tightening the bolts securing the front brake caliper guide pins to the caliper. These bolts help ensure smooth movement of the caliper.
- Locate the two guide pin bolts on the back of the caliper.
- Using the correct socket, tighten the bolts to 25 ft-lbs.
- Double-check the torque settings using the calibrated torque wrench.
Rear Brake Caliper Bracket Bolt Torque
Procedure for tightening the bolts securing the rear brake caliper bracket to the rear knuckle/hub assembly. Ensures proper clamping force for safe braking.
- Locate the two bolts securing the caliper bracket to the knuckle/hub assembly.
- Using the correct socket, tighten the bolts to 40 ft-lbs.
- Double-check the torque settings using the calibrated torque wrench.
Rear Brake Caliper Guide Pin Bolts Torque
Procedure for tightening the bolts securing the rear brake caliper guide pins to the caliper. These bolts help ensure smooth movement of the caliper.
- Locate the two guide pin bolts on the back of the caliper.
- Using the correct socket, tighten the bolts to 20 ft-lbs.
- Double-check the torque settings using the calibrated torque wrench.
Technical Service Bulletins
Brake Pedal Feel Issue - Excessive Travel
2018-03-15Some 2015-2018 Acura TLX models may experience excessive brake pedal travel, potentially indicating air in the brake system. Check for proper bleeding procedure and master cylinder function.
Resolution: Perform a thorough brake system bleed. Ensure no air is present in any component. Verify master cylinder operation and replace if necessary.
Rear Brake Rotor Warping - Excessive Wear
2019-08-22Reports of rear brake rotor warping and excessive wear have been noted on 2016-2020 Acura TLX models. Ensure proper pad material is used and proper rotor runout is present.
Resolution: Check rear rotor runout. Ensure the use of manufacturer-recommended brake pads. Replace rotors if warped or exhibiting excessive wear. Bed new brake pads in using proper procedure.
Front Brake Pad Noise on Light Braking
2020-06-10Some Acura TLX vehicles have demonstrated minor squealing from the front brakes during light brake application. Often this is a result of excessive build-up of brake dust.
Resolution: Inspect front brake components for excessive brake dust and clean appropriately. Ensure correct installation of brake hardware and proper pad lubricant is used. Resurface or replace rotors if warranted.
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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.