Brake Pad and Rotor Burnishing JL9, J55, J56

Warning: Road test a vehicle under safe conditions and while obeying all traffic laws. Do not attempt any maneuvers that could jeopardize vehicle control. Failure to adhere to these precautions could lead to serious personal injury and vehicle damage.

Burnishing the brake pads and brake rotors is necessary in order to ensure that the braking surfaces are properly prepared after service has been performed on the disc brake system.

This procedure should be performed whenever the disc brake rotors have been refinished or replaced, and/or whenever the disc brake pads have been replaced.

1. Select a smooth road with little or no traffic.
2. Accelerate the vehicle to 48 km/h (30 mph).

Note: Use care to avoid overheating the brakes while performing this step.

3. Using moderate to firm pressure, apply the brakes to bring the vehicle to a stop. Do not allow the brakes to lock.
4. Repeat steps 2 and 3 until approximately 20 stops have been completed. Allow sufficient cooling periods between stops in order to properly burnish the brake pads and rotors.

Brake Pad and Rotor Burnishing J57

Warning: Road test a vehicle under safe conditions and while obeying all traffic laws. Do not attempt any maneuvers that could jeopardize vehicle control. Failure to adhere to these precautions could lead to serious personal injury and vehicle damage.

Proper bedding-in and burnishing of the brake pads and rotors is necessary in order to obtain maximum performance and longevity of the disc brake system.

Bedding-in the brake pads is necessary whenever the disc brake pads have been replaced in order to smooth the friction surface of the brake pads to achieve full brake pad contact with the brake rotor.

Burnishing the brake pads and brake rotors is necessary in order to ensure that the braking surfaces are properly prepared after service has been performed on the disc brake system.

This procedure should be performed whenever the disc brake rotors have been replaced, and/or whenever the disc brake pads have been replaced.

Bedding-In Disc Brake Pads

1. Select a smooth road with little or no traffic.

Note: Do not accelerate and apply the brake pedal simultaneously.

2. Accelerate the vehicle to 48 km/h (30 mph).

Note: Avoid activation of the antilock brake system (ABS).

3. Using moderate to firm pressure, apply the brakes for 2-3 seconds. Do not perform a complete stop.
4. Accelerate the vehicle to 48 km/h (30 mph).
5. Maintain the vehicle speed for a minimum of 1 km (0.6 mi).
6. Repeat steps 2-5 until approximately 30 to 50 stops have been completed.

Brake Pad and Rotor Burnishing

1. Select a smooth road with little or no traffic.

Note: Do not accelerate and apply the brake pedal simultaneously.

2. Accelerate the vehicle to 100-120 km/h (62-65 mph).

Note: Avoid activation of the antilock brake system (ABS).

3. Using moderate to firm pressure, apply the brakes for 2-3 seconds. Do not perform a complete stop.
4. Accelerate the vehicle to 100-120 km/h (62-65 mph).
5. Repeat steps 2-4 as rapidly as possible until an increase in the brake pedal travel during the brake applications is noticed.

During the repeated brake applications, an odor will be noticed as the resins in the brake pads are burnished.

6. After the increase in brake pedal travel and effort is noticed, park the vehicle and allow the disc brake system to return to ambient temperature
7. Observe the disc brake pads through the wheel spokes. Correctly bedded-in and burnished brake pads will exhibit a lighter color near the edge of the brake pad friction surface.