Acura TLX 2021-present Brake System Bolt Torque Specifications & Fastener Values
Acura TLX 2021-present

Acura TLX 2021-present Brake System Bolt Torque Specifications

Complete factory torque specifications for all brakes components of the 2021-Present Acura TLX, including detailed procedures and specifications.

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

Brakes Caliper Components

Torque specifications for brake caliper and related mounting hardware

1

Front Caliper Mounting Bolts

M12 x 1.25
Torque Value
79.6 ft-lbs (108 N·m)
Important Notes
Apply a light coat of anti-seize to the threads. Ensure caliper slides smoothly on mounting pins after installation. Verify the torque is evenly applied.
2

Rear Caliper Mounting Bolts

M10 x 1.25
Torque Value
25.3 ft-lbs (34.4 N·m)
Important Notes
Apply a light coat of anti-seize to the threads. Make sure the parking brake mechanism is disengaged. Ensure caliper slides freely on mounting pins after installation. Check that parking brake function is correct.
3

Front Caliper Guide Pin Bolts

M8 x 1.25
Torque Value
22 ft-lbs (30 N·m)
Important Notes
Apply a light coat of silicone based grease to guide pins before assembly. Ensure smooth caliper movement after torque.
4

Rear Caliper Guide Pin Bolts

M8 x 1.25
Torque Value
17 ft-lbs (23 N·m)
Important Notes
Apply a light coat of silicone based grease to guide pins before assembly. Ensure smooth caliper movement after torque.

Brakes Rotor Components

Torque specifications for brake rotor and related mounting hardware

1

Front Rotor Retaining Screw

M6 x 1.0
Torque Value
7.2 ft-lbs (9.8 N·m)
Important Notes
Use a new screw if it is damaged. This screw is primarily to hold the rotor in place during assembly, ensure not overtighten to prevent damage.
2

Rear Rotor Retaining Screw

M6 x 1.0
Torque Value
7.2 ft-lbs (9.8 N·m)
Important Notes
Use a new screw if it is damaged. This screw is primarily to hold the rotor in place during assembly, ensure not overtighten to prevent damage.

Brakes Hose Components

Torque specifications for brake hoses and related mounting hardware

1

Front Brake Hose Union Bolt

M10 x 1.0
Torque Value
22 ft-lbs (30 N·m)
Important Notes
Use new crush washers on each side of the hose connection. Ensure there is no leaks.
2

Rear Brake Hose Union Bolt

M10 x 1.0
Torque Value
22 ft-lbs (30 N·m)
Important Notes
Use new crush washers on each side of the hose connection. Ensure there is no leaks.

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 type of brakes does the 2021-Present Acura TLX use?

The 2021-Present Acura TLX typically uses ventilated disc brakes on the front wheels and solid disc brakes on the rear wheels. The exact specifications can vary based on trim level (e.g., Type S models might have larger or different rotors and calipers).

Q2

What is the typical rotor diameter for the Acura TLX?

Rotor diameters can vary. Generally, the front rotors are approximately 12.3-13.5 inches (312-343mm) in diameter, and the rear rotors are approximately 11.8-12.8 inches (300-325mm). Please consult your vehicle's owner's manual or a qualified mechanic for precise measurements for your specific model and trim level.

Q3

What are the common brake pad materials used on the Acura TLX?

The Acura TLX typically uses semi-metallic or ceramic brake pads from the factory. These provide a good balance of performance and durability. High performance models like the Type S might have more aggressive compounds.

Q4

How often should I replace my Acura TLX brake pads?

Brake pad life varies based on driving habits, environment, and pad material. Generally, it's recommended to inspect your brake pads every 6 months or 6,000 miles. Replacement is usually needed between 25,000 and 70,000 miles. Consult your vehicle's manual and have your brakes inspected by a professional.

Q5

Are there any aftermarket brake upgrade options for the Acura TLX?

Yes, there are several aftermarket brake upgrade options available, including high-performance rotors, brake pads with different compounds (e.g., for track use), upgraded calipers, and stainless steel brake lines. However, ensure any upgrades are compatible and properly installed by a qualified mechanic.

Q6

Does the Acura TLX have any advanced braking systems?

Yes, the Acura TLX comes standard with Anti-lock Braking System (ABS), Electronic Brakeforce Distribution (EBD), and Brake Assist. Some models also include features such as automatic emergency braking (AEB) and hill start assist.

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 (10-100 ft-lbs)

Essential for properly tightening brake caliper bolts, mounting bracket bolts, and wheel lug nuts to manufacturer specifications. Prevents damage and ensures safe brake operation.

  • Click-type
  • 1/2 inch drive
  • Dual scale (ft-lbs and Nm)
  • Durable construction
Learn more

Torque Wrench (5-25 ft-lbs)

Used for tightening smaller bolts and fasteners associated with brake components, such as brake line fittings and sensors, requiring lower torque values.

  • Click-type
  • 3/8 inch drive
  • Dual scale (ft-lbs and Nm)
  • Precise calibration
Learn more

Brake Caliper Piston Tool

Used to retract brake caliper pistons back into their bore when replacing brake pads. Necessary to create space for new pads.

  • Multiple adapters for various piston types
  • Ratchet mechanism
  • Durable construction
Learn more

Brake Line Wrench Set

Specialized wrenches designed to grip brake line fittings securely, preventing damage and rounding during removal and installation.

  • Flare nut design
  • Various sizes
  • Chrome vanadium steel
Learn more

Brake Rotor Measuring Tool

Used to accurately measure brake rotor thickness to determine if the rotors are within manufacturer specifications for reuse, and to check for thickness variation or runout.

  • Digital or analog readout
  • Precise measuring capability
  • Durable construction
Learn more

Impact Wrench (Optional)

Can speed up the process of removing wheel lug nuts and larger bolts, but should be used with caution and followed by torqueing with a torque wrench.

  • High torque output
  • Variable speed control
  • 1/2 inch drive
Learn more
Service Procedures

Front Brake Pad Replacement

Procedure for replacing the front brake pads on a 2021-Present Acura TLX. Requires careful attention to detail to ensure safe and effective braking.

  • Step 1: Loosen wheel lug nuts, raise the vehicle and support with jack stands. Remove wheels.
  • Step 2: Remove the two caliper retaining bolts (check torque specifications) and carefully remove the caliper. Secure it so it doesn't strain the brake line.
  • Step 3: Remove the old brake pads and note their placement. Clean the caliper bracket.
  • Step 4: Using the caliper piston tool, carefully retract the caliper piston into its bore.
  • Step 5: Install the new brake pads in the caliper bracket, ensuring proper seating.
  • Step 6: Reinstall the caliper over the new pads and install the caliper retaining bolts. Tighten bolts to specifications with torque wrench.
  • Step 7: Repeat steps on the other side, reinstall wheels, torque lug nuts to spec, and pump the brakes several times to reset caliper piston travel before test drive.
View full procedure

Rear Brake Pad Replacement

Procedure for replacing the rear brake pads on a 2021-Present Acura TLX, which may differ slightly from the front due to the parking brake system.

  • Step 1: Loosen wheel lug nuts, raise the vehicle and support with jack stands. Remove wheels.
  • Step 2: Disconnect electronic parking brake (if equipped) following service manual guidelines. Remove the two caliper retaining bolts (check torque specifications) and carefully remove the caliper. Secure it so it doesn't strain the brake line.
  • Step 3: Remove the old brake pads and note their placement. Clean the caliper bracket.
  • Step 4: Retract the caliper piston using a specialized caliper piston tool. Some vehicles require a tool that rotates and compresses the piston at the same time.
  • Step 5: Install the new brake pads in the caliper bracket, ensuring proper seating.
  • Step 6: Reinstall the caliper over the new pads and install the caliper retaining bolts. Tighten bolts to specifications with torque wrench.
  • Step 7: Reconnect parking brake. Repeat steps on the other side, reinstall wheels, torque lug nuts to spec, and pump the brakes several times to reset caliper piston travel before test drive. Test parking brake function.
View full procedure

Brake Rotor Replacement

Procedure for replacing the brake rotors on a 2021-Present Acura TLX. Requires removal of the caliper and bracket.

  • Step 1: Follow brake pad replacement steps to remove the caliper and pads.
  • Step 2: Remove the caliper mounting bracket bolts and remove the bracket.
  • Step 3: Remove the brake rotor from the hub. It may be necessary to use penetrating oil and lightly tap the rotor if it's stuck.
  • Step 4: Clean the hub surface thoroughly.
  • Step 5: Install the new brake rotor.
  • Step 6: Reinstall the caliper bracket and torque the bracket bolts to specification.
  • Step 7: Reinstall the caliper and pads, following the steps for brake pad replacement. Repeat on the other side. Reinstall wheels, torque lug nuts, and test brakes.
View full procedure

Brake Fluid Flush and Bleed

Procedure for flushing the old brake fluid and bleeding the brake system. Vital for maintaining proper brake performance and preventing moisture related corrosion in system components.

  • Step 1: Locate and remove brake fluid reservoir cap.
  • Step 2: Use a turkey baster or similar tool to remove the old brake fluid from the reservoir.
  • Step 3: Fill the reservoir with new, DOT 3 brake fluid.
  • Step 4: Start with the wheel furthest from the reservoir (usually the rear passenger side) and attach one end of a clear tube to the brake bleeder screw. The other end of the tube should be in a container. Have an assistant slowly pump the brakes several times, and then hold the brake pedal down.
  • Step 5: Open the bleeder screw and allow the old brake fluid to flow out. Close the bleeder screw before the brake pedal reaches the floor.
  • Step 6: Repeat pumping and bleeding process, monitoring the fluid reservoir level and adding new fluid as needed.
  • Step 7: Continue until the new clear brake fluid comes through. Repeat process at each wheel, working from furthest to closest to master cylinder (rear passenger, rear driver, front passenger, front driver).
  • Step 8: Refill the fluid reservoir to the correct level, and ensure no leaks. Test brakes and confirm firm pedal.
View full procedure
Technical Service Bulletins

TSB 22-001: Rear Brake Caliper Squeal

2022-01-15

Some 2021-2022 TLX models may experience rear brake squealing under light braking conditions, especially at low speeds. This may be due to excessive movement of the brake pads within the caliper.

2021-2022 TLX

Resolution: Replace rear brake pads with revised pads and apply anti-squeal compound on the contact points, as specified in the TSB.

TSB 23-005: Premature Brake Rotor Wear

2023-05-20

Some 2021-2023 TLX models may exhibit premature wear of the front brake rotors. This may be due to an issue with the initial rotor material or pad compound. Inspect rotors for excessive wear before performing any other service.

2021-2023 TLX

Resolution: Inspect front brake rotors. If out of specification, replace the rotors and brake pads with upgraded parts as outlined in the bulletin. Additionally, verify correct operation of the brake system components during this service.

About the Author

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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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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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