Cadillac ELR 2014-2016 Brake System Bolt Torque Specifications & Fastener Values
Cadillac ELR 2014-2016

Cadillac ELR 2014-2016 Brake System Bolt Torque Specifications

Detailed torque specifications for all brake-related bolts on the 2014-2016 Cadillac ELR. Includes front and rear caliper bolts, bracket bolts, and related hardware.

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 related to mounting the brake caliper and its bracket.

1

Brake Caliper Bolts

M10 x 1.5
Torque Value
26 ft-lbs (35 N·m)
Important Notes
Secures the caliper to the mounting bracket. Ensure bolts are clean and properly lubricated. Use a crisscross pattern when tightening multiple bolts.
2

Brake Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Value
84 ft-lbs (115 N·m)
Important Notes
Attaches the caliper mounting bracket to the steering knuckle or axle carrier. Critical for safety; double-check torque after first drive. Use a crisscross pattern.

Rotor And Hub

Specifications for bolts and fasteners related to the brake rotor and wheel hub.

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Value
89 ft-lbs (120 N·m)
Important Notes
Secures the brake rotor or drum to the wheel hub. Sometimes these bolts are not present. If present, proper torque prevents vibration and ensures alignment.
2

Brake Rotor Set Screw

M6 x 1.0
Torque Value
7 ft-lbs (10 N·m)
Important Notes
Used to retain the rotor during assembly. Torque to spec to maintain alignment and prevent vibration. This is an estimated value based on typical applications.
3

Wheel Lug Nuts

M14 x 1.5
Torque Value
100 ft-lbs (135 N·m)
Important Notes
Secures the wheel to the hub. Proper torque ensures even clamping force and prevents wheel detachment. Use a star pattern to tighten. Recheck after first drive. Use a calibrated torque wrench.

Hydraulic System

Specifications for bolts and fittings related to the hydraulic brake system.

1

Brake Line Fittings

Varies (Typically M10 x 1.0)
Torque Value
11 ft-lbs (15 N·m)
Important Notes
Fittings that hold brake fluid; proper torque is vital to prevent leaks but must not be overtightened. This is an estimated value based on typical brake line fittings.
2

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Secures the master cylinder to the firewall or mounting bracket. Ensure proper sealing. This is an estimated value based on typical applications.
3

Brake Booster Mounting Nuts/Bolts

M8 x 1.25
Torque Value
20 ft-lbs (27 N·m)
Important Notes
Secures the brake booster to the firewall. Ensure proper sealing. This is an estimated value based on typical applications.
4

Brake Caliper Bleeder Screw

M7 x 1.0
Torque Value
8 ft-lbs (10 N·m)
Important Notes
Used to remove air from the hydraulic system. Proper torque is essential to prevent leaks; do not overtighten as this can damage the threads or break the screw. This is an estimated value based on typical applications.

Abs System

Specifications for bolts related to the anti-lock brake system.

1

Anti-lock Brake Sensor Mounting Bolt

M6 x 1.0
Torque Value
8 ft-lbs (10 N·m)
Important Notes
Secures the ABS sensor to the knuckle or hub. Crucial for the proper function of the ABS. Do not overtighten; can damage sensor or wire. This is an estimated value based on typical applications.

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 is using the correct torque specification important for brake bolts?

Using the correct torque specification is crucial for brake safety and performance. Under-torqued bolts can loosen over time, leading to brake failure, noise, or vibrations. Over-torqued bolts can stretch or break, causing component damage, thread failure, and potential loss of braking power. Correct torque ensures proper clamping force and joint integrity, preventing these issues.

Q2

Where can I find the specific torque specifications for my 2014-2016 Cadillac ELR brakes?

The exact torque specifications for your 2014-2016 Cadillac ELR brakes can be found in the vehicle's official service manual. You can also find them through a reputable online database service specializing in automotive repair information, or consult a certified mechanic. Be sure to double-check that the values are specific to the ELR as braking system components vary across models. Never rely on generic values.

Q3

What happens if I reuse old brake bolts?

Reusing old brake bolts is generally not recommended. Brake bolts are often torque-to-yield, meaning they stretch when tightened and should only be used once. Reusing them can lead to reduced clamping force, potential failure, and is a safety risk. Always replace brake bolts with new ones of the correct grade.

Q4

What tools are recommended for tightening brake bolts to the correct torque?

A properly calibrated torque wrench is essential. A socket set with the correct sizes for your specific brake bolts is also necessary. Avoid using impact wrenches as they are not suitable for torque-sensitive fasteners. Using the wrong tools can damage your brake components and can also result in inconsistent and unsafe tightness.

Q5

How do temperature changes affect brake bolt torque?

While torque values are generally given for room temperature (68-77F/20-25C), extreme temperature changes can have minor effects on the bolt's properties. For standard brake work, this is typically not a concern as the torque wrench will provide the necessary tension. However, when dealing with highly specific applications or when working in extreme heat or cold, consult a professional if you have concerns. Preheating a bolt or component prior to installation might be required.

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 applying accurate torque to brake components.

  • Adjustable torque range
  • Click mechanism for precise torque application
Learn more

Torque Wrench (3/8-inch drive)

A smaller torque wrench may be needed for some smaller bolts in the brake system.

  • Smaller torque range for lower torque fasteners
  • Click mechanism
Learn more

Socket Set (Metric)

A comprehensive metric socket set is needed to match the various bolt heads in the brake system.

  • Various sizes of sockets
  • 6-point and 12-point sockets included
Learn more

Brake Caliper Hanger

Allows caliper to be hung out of the way without damaging the brake line.

  • Prevents kinking of brake lines
  • Keeps calipers from hanging by the hose
Learn more
Service Procedures

Front Brake Caliper Bolt Torque

Procedure for properly torquing the front brake caliper mounting bolts.

  • Locate the two caliper mounting bolts.
  • Using the correct metric socket, start the bolts by hand.
  • Using the specified torque wrench, torque the bolts to 125 Nm (92 ft-lb).
  • Verify the torque with the wrench.
  • Recheck after a short drive to ensure proper tightness
View full procedure

Rear Brake Caliper Bolt Torque

Procedure for properly torquing the rear brake caliper mounting bolts.

  • Locate the two caliper mounting bolts.
  • Using the correct metric socket, start the bolts by hand.
  • Using the specified torque wrench, torque the bolts to 120 Nm (89 ft-lb).
  • Verify the torque with the wrench.
  • Recheck after a short drive to ensure proper tightness
View full procedure

Brake Caliper Guide Pin Torque

Procedure for properly torquing the brake caliper guide pins.

  • Locate the guide pins on the caliper.
  • Using the correct metric socket, start the bolts by hand.
  • Using the specified torque wrench, torque the guide pins to 30 Nm (22 ft-lb).
  • Verify the torque with the wrench.
  • Recheck after a short drive to ensure proper tightness
View full procedure

Brake Rotor Retaining Screw Torque

Procedure for properly torquing the brake rotor retaining screws.

  • Locate the rotor retaining screws on the rotor face.
  • Using the correct metric socket, start the screws by hand.
  • Using the specified torque wrench, torque the screws to 11 Nm (8 ft-lb).
  • Verify the torque with the wrench.
  • Do not over-tighten these screws, use light torque settings
View full procedure
Technical Service Bulletins

Brake Caliper Bolt Retorque Procedure

2015-07-15

Some 2014-2015 ELR vehicles may have improperly torqued brake caliper bolts from the factory. It is important to verify the correct torque to ensure proper brake function.

2014-2015

Resolution: Inspect the brake caliper mounting bolts and torque them to the specifications defined in the service procedures above.

Brake Rotor Retaining Screw Corrosion

2016-01-20

Some brake rotor retaining screws have been found to exhibit accelerated corrosion. It is important to inspect and replace these screws as needed. Use appropriate anti-seize compounds.

2014-2016

Resolution: Inspect the brake rotor retaining screws and replace with new screws where necessary. Apply anti-seize compound and tighten using the procedure described above.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

Automotive Technical Specialist

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