Cadillac ATS 2013-2019 Brake System Bolt Torque Specifications & Fastener Values
Cadillac ATS 2013-2019

Cadillac ATS 2013-2019 Brake System Bolt Torque Specifications

Comprehensive guide to brake bolt torque specifications for the 2013-2019 Cadillac ATS, including caliper bolts, bracket bolts, and rotor set screws.

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

Caliper Mounting

Specifications for bolts that attach the brake caliper and its mounting bracket to the vehicle's steering knuckle or hub assembly. Proper torque is critical for brake function and safety.

1

Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Value
129 ft-lbs (175 N·m)
Important Notes
High torque connection. Ensures bracket remains securely attached to the steering knuckle/hub.
2

Caliper Bolts

M10 x 1.25
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Secures the caliper to the mounting bracket. Crucial for proper caliper function and even pad wear.

Caliper Guide Pins

Specifications for the guide pins that allow the brake caliper to float. Proper torque is essential for even pad wear and caliper function.

1

Front Caliper Guide Pin Bolts

M8 x 1.25
Torque Value
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar components. Allows the caliper to slide for even pad wear.
2

Rear Caliper Guide Pin Bolts

M8 x 1.25
Torque Value
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on similar components. Allows the caliper to slide for even pad wear.

Rotor Attachment

Specifications for the bolts that secure the brake rotor to the wheel hub. These bolts ensure proper alignment and rotor stability.

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Value
89 ft-lbs (120 N·m)
Important Notes
Ensures the brake rotor remains properly positioned and does not wobble. Though primarily held in place by the wheel.

Brake Lines

Specifications for banjo bolts and bleeder screws that are part of the brake hydraulic system. Correct torque is critical for leak prevention and proper brake function.

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Value
23 ft-lbs (31 N·m)
Important Notes
Secures the brake hose to the caliper. Proper torque is crucial for sealing and preventing leaks.
2

Brake Bleeder Screw

M7 x 1.0
Torque Value
9 ft-lbs (12 N·m)
Important Notes
Low torque to prevent damage to the bleeder screw or its seat. Estimated value, convert from inch-lbs.

Abs Sensors

Specifications for the bolts that secure the ABS wheel speed sensor. Proper torque ensures correct sensor alignment and function.

1

ABS Wheel Speed Sensor Bolt

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Ensures proper sensor alignment for ABS functionality. Estimated value, converted from inch-lbs

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

Why are torque specifications important when working on brakes?

Proper torque ensures that brake components are securely fastened. Under-torquing can lead to loosening and failure, while over-torquing can damage threads or distort components, potentially affecting braking performance and safety. Consistent clamping force is critical for reliable brake function.

Q2

What happens if I overtighten brake caliper bolts?

Overtightening caliper bolts can stretch or strip the threads in the caliper bracket or the caliper itself. This can lead to the bolt not holding securely, potentially causing the caliper to move or come loose, resulting in brake failure. It can also damage the bolt itself or the clamping surfaces. In some cases, it can distort the caliper leading to uneven pad wear or brake drag.

Q3

Can I reuse brake caliper bolts?

Generally, it's recommended to replace brake caliper bolts, especially those with thread-locking compound or that are torque-to-yield. These bolts may have stretched after initial installation, and reusing them can compromise their integrity and clamping force. However, the reuse of bolts without thread-locking compound can sometimes be acceptable if they are inspected and confirmed not to be damaged, however the manufacturer recommendation is to always replace bolts for critical components such as brakes.

Q4

How often should I check the torque on brake components after installation?

It's best practice to recheck the torque on brake components, especially caliper bolts, after a short drive, typically around 50-100 miles after installation. The initial settling can cause minor changes in clamping force. After the initial check, routine inspections during regular service intervals should include a check of bolt security, but not necessarily a retorque. However, if any braking issues arise, the bolts should be the first item checked.

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-inch Drive)

A calibrated torque wrench is essential for achieving accurate bolt torque specifications.

  • 1/2-inch drive for common brake hardware
  • Wide torque range (typically 20-150 ft-lbs)
  • Click-type for audible and tactile feedback
Learn more

Torque Wrench (3/8-inch Drive)

A smaller torque wrench for lower torque brake components and fasteners.

  • 3/8-inch drive for smaller fasteners
  • Lower torque range (typically 5-80 ft-lbs)
  • Click-type for audible and tactile feedback
Learn more

Socket Set (Metric)

A set of metric sockets in various sizes to fit the brake fasteners.

  • Includes common sizes for brake calipers and brackets
  • 6-point design for secure grip
  • Durable construction
Learn more

Socket Extension

Used to reach recessed or hard-to-access brake hardware.

  • Varying lengths for different applications
  • Durable construction
  • Provides increased access
Learn more
Service Procedures

Front Caliper Bracket Bolt Torque

Procedure for properly torquing front brake caliper bracket bolts on a 2013-2019 Cadillac ATS.

  • Locate the front brake caliper bracket bolts.
  • Using the correct socket, hand-tighten the bolts.
  • Using the appropriate torque wrench, torque the bolts to 125 ft-lbs (170 Nm).
  • Verify the torque using the torque wrench.
  • Repeat the procedure for all bracket bolts.
View full procedure

Front Caliper Guide Pin Bolt Torque

Procedure for properly torquing front brake caliper guide pin bolts on a 2013-2019 Cadillac ATS.

  • Locate the front brake caliper guide pin bolts.
  • Using the correct socket, hand-tighten the bolts.
  • Using the appropriate torque wrench, torque the bolts to 27 ft-lbs (37 Nm).
  • Verify the torque using the torque wrench.
  • Repeat the procedure for all guide pin bolts.
View full procedure

Rear Caliper Bracket Bolt Torque

Procedure for properly torquing rear brake caliper bracket bolts on a 2013-2019 Cadillac ATS.

  • Locate the rear brake caliper bracket bolts.
  • Using the correct socket, hand-tighten the bolts.
  • Using the appropriate torque wrench, torque the bolts to 85 ft-lbs (115 Nm).
  • Verify the torque using the torque wrench.
  • Repeat the procedure for all bracket bolts.
View full procedure

Rear Caliper Guide Pin Bolt Torque

Procedure for properly torquing rear brake caliper guide pin bolts on a 2013-2019 Cadillac ATS.

  • Locate the rear brake caliper guide pin bolts.
  • Using the correct socket, hand-tighten the bolts.
  • Using the appropriate torque wrench, torque the bolts to 23 ft-lbs (31 Nm).
  • Verify the torque using the torque wrench.
  • Repeat the procedure for all guide pin bolts.
View full procedure
Technical Service Bulletins

Brake Judder/Vibration Diagnosis and Repair

2016-05-15

This bulletin outlines a procedure to diagnose and resolve brake judder and vibration concerns, which may be related to improper torque on various brake components. It emphasizes correct torque application.

2013-2016 Cadillac ATS

Resolution: Diagnose for warped rotors, worn pads and verify correct torque on caliper brackets and guide pins.

Rear Brake Caliper Bracket Bolt Loosening

2018-08-20

This bulletin addresses cases of rear caliper bracket bolts loosening over time and causing noise/vibration. It specifies the use of new bolts with thread locking compound, and proper torque application is critical.

2016-2019 Cadillac ATS

Resolution: Replace affected bolts and ensure correct torque and thread locker application.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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