Acura ILX 2013-2021 Brake System Bolt Torque Specifications & Fastener Values
Acura ILX 2013-2021

Acura ILX 2013-2021 Brake System Bolt Torque Specifications

This page provides detailed torque specifications for all brake-related bolts on the 2013-2021 Acura ILX, including caliper bolts, bracket bolts, and rotor retaining screws. Proper torque is crucial for safe and reliable braking performance.

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 Front Caliper

Torque specifications for the front brake caliper and related components.

1

Brake Caliper Bolts

M12 x 1.25
Torque Value
79 ft-lbs (107 N·m)
Important Notes
Secures the brake caliper to the caliper mounting bracket. Ensure bolts are clean and threads are in good condition before torquing. These bolts may need to be replaced after removal.
2

Brake Caliper Slide Pin Bolts

M8 x 1.25
Torque Value
23 ft-lbs (31 N·m)
Important Notes
These bolts allow the caliper to move freely. Ensure proper lubrication of slide pins before installation. Estimated value; always consult manufacturer specification when available.
3

Brake Pad Retaining Bolts or Pins

M6 x 1.0
Torque Value
12 ft-lbs (16 N·m)
Important Notes
Secures brake pads within the caliper. Use new bolts if recommended in service manual. Estimated value; always consult manufacturer specification when available.

Brakes Front Mounting Bracket

Torque specifications for the front brake caliper mounting bracket.

1

Brake Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Value
79 ft-lbs (107 N·m)
Important Notes
Attaches the caliper mounting bracket to the steering knuckle or hub carrier. Ensure correct alignment before tightening. These bolts may need to be replaced after removal.

Brakes Rotor

Torque specifications for brake rotor attachment.

1

Brake Disc/Drum Retaining Bolts

M6 x 1.0
Torque Value
17 ft-lbs (23 N·m)
Important Notes
Secures the brake rotor to the wheel hub. Ensure rotor is flush against hub. These bolts are frequently replaced on removal of the rotor.

Brakes Hydraulic

Torque specifications for the brake hydraulic system components.

1

Brake Line Fitting

M10 x 1.0
Torque Value
12 ft-lbs (16 N·m)
Important Notes
Connects brake lines to calipers, master cylinder, and other components. Use flare nut wrench to avoid damage. Estimated value; always consult manufacturer specification when available. Clean all fittings before reassembly.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Mounts the brake master cylinder to the firewall or brake booster. Ensure proper seating of the master cylinder before tightening. Estimated value; always consult manufacturer specification when available.
3

Brake Booster to Firewall Mounting Bolts

M8 x 1.25
Torque Value
18 ft-lbs (24 N·m)
Important Notes
Mounts the brake booster to the vehicle's firewall. Ensure the booster is correctly positioned before tightening. Estimated value; always consult manufacturer specification when available.

Brakes Abs

Torque specifications for ABS components.

1

Anti-Lock Braking System (ABS) Sensor Bolt(s)

M6 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Mounts the ABS wheel speed sensor. Ensure the sensor is correctly positioned before tightening. Estimated value; always consult manufacturer specification when available.

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 brake bolts?

Overtightening brake bolts can stretch or damage the threads, potentially leading to bolt failure and brake component malfunction. This can also warp brake rotors and calipers. For example, over-tightening caliper bolts can cause the calipers to bind or not retract correctly, causing premature brake pad wear, overheating, and a potential loss of braking power.

Q2

What happens if I undertighten brake bolts?

Undertightening brake bolts can cause components to loosen during driving, leading to premature wear, noise, vibration, and in extreme cases, complete failure of the braking system. A loose caliper bolt, for instance, could result in the caliper shifting and potentially causing a loss of braking or damage to other parts of the system.

Q3

Do I need to use new brake bolts every time?

While not always mandatory, it is highly recommended to use new brake bolts when replacing components like rotors or calipers. This is because they can stretch or weaken over time, which can affect clamping force. Reusing old bolts increases the risk of improper torque and potential failure.

Q4

Do I need to use threadlocker on brake bolts?

Threadlocker is not typically needed for brake caliper mounting bolts, but it can be beneficial for brake rotor set screws, or other smaller fasteners. If using, apply a low-strength, non-permanent threadlocker to help prevent bolts from loosening due to vibration.

Q5

What if I don't have a torque wrench?

It is highly discouraged to work on brakes without a torque wrench. Using feel or approximations can lead to improperly torqued fasteners and compromise safety. If you lack a torque wrench, it is best to take your vehicle to a professional mechanic.

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 accurately tightening brake components to specification.

  • Click-type mechanism for accurate torque application
  • Wide torque range to cover all brake fasteners
  • 1/2" drive for common socket sizes
Learn more

Torque Wrench (3/8" Drive)

A smaller torque wrench for tighter spaces and smaller fasteners.

  • Click-type mechanism for accurate torque application
  • Appropriate torque range for smaller bolts
  • 3/8" drive for smaller socket sizes
Learn more

Socket Set (Metric)

A comprehensive set of metric sockets is required to fit various brake fasteners.

  • Includes a variety of sizes from 10mm to 19mm (and others)
  • 6-point design for secure grip
  • Durable construction for repeated use
Learn more

Wrench Set (Metric)

A set of metric combination wrenches for holding bolts

  • Includes various sizes to match socket sets
  • Open-end and box-end
  • Durable construction for repeated use
Learn more
Service Procedures

Front Brake Caliper Bracket Bolt Torque Procedure

Procedure for properly tightening the front brake caliper bracket bolts.

  • Locate the two caliper bracket bolts.
  • Using a 17mm socket, tighten the bolts to 79.6 ft-lbs (108 N-m).
  • Ensure the torque wrench clicks at the specified value.
  • Double check torque
View full procedure

Rear Brake Caliper Bracket Bolt Torque Procedure

Procedure for properly tightening the rear brake caliper bracket bolts.

  • Locate the two caliper bracket bolts.
  • Using a 17mm socket, tighten the bolts to 49 ft-lbs (66 N-m).
  • Ensure the torque wrench clicks at the specified value.
  • Double check torque
View full procedure

Front Brake Caliper Guide Pin Bolt Torque Procedure

Procedure for properly tightening the front brake caliper guide pin bolts.

  • Locate the two caliper guide pin bolts.
  • Using a 12mm socket, tighten the bolts to 24 ft-lbs (33 N-m).
  • Ensure the torque wrench clicks at the specified value.
  • Double check torque
View full procedure

Rear Brake Caliper Guide Pin Bolt Torque Procedure

Procedure for properly tightening the rear brake caliper guide pin bolts.

  • Locate the two caliper guide pin bolts.
  • Using a 12mm socket, tighten the bolts to 17 ft-lbs (23 N-m).
  • Ensure the torque wrench clicks at the specified value.
  • Double check torque
View full procedure
Technical Service Bulletins

Brake Judder Diagnosis and Repair

2017-03-15

Addresses brake judder issues and provides inspection and repair guidelines. Includes information about proper torque specs and brake pad replacement.

2013-2015 Acura ILX

Resolution: Inspect rotors for runout, ensure proper caliper bolt torque, and replace worn pads or rotors

Brake Squeal Troubleshooting

2019-09-20

Provides troubleshooting for brake squeal issues with various potential causes. Focuses on correct torque and proper brake pad installation.

2016-2021 Acura ILX

Resolution: Inspect for proper brake pad fitment, ensure proper caliper bolt torque, and apply anti-squeal compound

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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