Remove rear brake pads
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
Precondition
- Vehicles with carbon ceramic brake!
WARNING:
Unintentionally applying the parking brake
Injury hazard!
Injury hazard!
- On vehicles with "Remote Engine Start" (SA1CR):
- Starting the engine while working on the braking system is strictly forbidden. When starting the engine via "Remote Engine Start", the parking brake is automatically applied.
- Deactivate the function "Remote Engine Start".
- Open the hood before working on the braking system. This prevents the engine from being started.
WARNING:
Vehicle may slip off the vehicle hoist if the vehicle hoist is handled incorrectly
.
Danger! Immobilization period-threatening injuries!
Danger! Immobilization period-threatening injuries!
- Observe safety instructions on raising the vehicle using a vehicle hoist.
- For additional information see: 00... RAISE THE VEHICLE USING A VEHICLE LIFT .
CAUTION:
Effects on other persons
.
Injury hazard! Risk of damage!
Injury hazard! Risk of damage!
- Make sure that no other persons are in or around the vehicle.
NOTE:
TECHNICAL INFORMATION
If the front brake pads and the rear brake pads are exchanged together, the parking brake button must be operated 1x and released again after completion of the first exchange (e.g. front brake pads).
If not observed, a fault memory entry will take place.
If the front brake pads and the rear brake pads are exchanged together, the parking brake button must be operated 1x and released again after completion of the first exchange (e.g. front brake pads).
If not observed, a fault memory entry will take place.
NOTE:
TECHNICAL INFORMATION
Before first working on the DSCi brake (integrated brake), the "DSCi" web-based training must be passed successfully.
The "DSCi" web-based training is started in the Learning Management System (TMSi).
Before first working on the DSCi brake (integrated brake), the "DSCi" web-based training must be passed successfully.
The "DSCi" web-based training is started in the Learning Management System (TMSi).
NOTE:
TECHNICAL INFORMATION
After a brake pad exchange and before pressing the brake pedal: It is imperative to apply the electromechanical parking brake.
If this is not observed, a CC message appears and the brake system switches to the emergency program. The brake booster is no longer active.
After a brake pad exchange and before pressing the brake pedal: It is imperative to apply the electromechanical parking brake.
If this is not observed, a CC message appears and the brake system switches to the emergency program. The brake booster is no longer active.
NOTE:
TECHNICAL INFORMATION
During work on the rear brake, it must be ensured that the button for the electromechanical parking brake cannot be pressed.
During work on the rear brake, it must be ensured that the button for the electromechanical parking brake cannot be pressed.
NOTE:
TECHNICAL INFORMATION
General information on changing the brake pads:
For vehicles older than 48 months it is recommended to replace the retaining spring or expanding spring.
The brake pad wear sensor must be replaced once it has been removed because the brake pad wear sensor loses its retention capability in the brake pad.
A CBS reset must be done after every brake pad exchange:
A CBS reset in the vehicle is possible in the event of a partially ground down brake pad wear sensor. The CBS display in the Central Information Display (CID) is active.
In the event of a brake pad wear sensor that is not partially ground down , a CBS reset is only possible with the diagnostic system. No CBS display in the Central Information Display (CID).
If adhesive bonded brake pads are installed, the brake pads must be replaced after releasing the adhesive bond!
General information on changing the brake pads:
For vehicles older than 48 months it is recommended to replace the retaining spring or expanding spring.
The brake pad wear sensor must be replaced once it has been removed because the brake pad wear sensor loses its retention capability in the brake pad.
A CBS reset must be done after every brake pad exchange:
A CBS reset in the vehicle is possible in the event of a partially ground down brake pad wear sensor. The CBS display in the Central Information Display (CID) is active.
In the event of a brake pad wear sensor that is not partially ground down , a CBS reset is only possible with the diagnostic system. No CBS display in the Central Information Display (CID).
If adhesive bonded brake pads are installed, the brake pads must be replaced after releasing the adhesive bond!
NOTE:
TECHNICAL INFORMATION
To prevent damage to the surface coating: With floating calipers on the brake caliper mounting bracket or with fixed calipers in the brake caliper housing, do not clean the contact surfaces for the brake pads to the extent that it is possible.
Clean the contact surfaces with brake cleaner (BMW part number 83 19 2 154 780). Next, apply a thin coat of brake pad paste (BMW part number 83 19 2 158 851 for 3 g) or 83 19 2 158 852 fr 100 g).
Spread brake pad paste on the marked surfaces with a brush.
For additional information see: 34 00... BRAKE PAD PASTE .
To prevent damage to the surface coating: With floating calipers on the brake caliper mounting bracket or with fixed calipers in the brake caliper housing, do not clean the contact surfaces for the brake pads to the extent that it is possible.
Clean the contact surfaces with brake cleaner (BMW part number 83 19 2 154 780). Next, apply a thin coat of brake pad paste (BMW part number 83 19 2 158 851 for 3 g) or 83 19 2 158 852 fr 100 g).
Spread brake pad paste on the marked surfaces with a brush.
For additional information see: 34 00... BRAKE PAD PASTE .
Preliminary work
- Refer to PREPARING WORK ON THE CARBON CERAMIC BRAKE .
- Refer to REMOVING REAR BRAKE PAD WEAR SENSOR .
- Release the screws (1); if necessary use the hexagon head (2) for counter support.
- Remove brake caliper (3).
- Tie up the brake caliper (1) with the special tool (cable tie) 2 413 317
.
Do not hang the brake caliper from the brake hose.
- Equipment version of the design clip:
- Lift retaining tab (1) with a screwdriver (2) and remove the design clip in the arrow direction.
- Remove the brake pads (1) from the brake caliper in arrow direction.
- Mark any worn brake pads.
If there is brake lining backplate wear on one side, they must not be mixed up.
- Remove the sliding plates (1).
NOTE:
TECHNICAL INFORMATION
When pressing the brake piston back, note the brake fluid level in the expansion tank.
Overflowing brake fluid will damage the paintwork.
When pressing the brake piston back, note the brake fluid level in the expansion tank.
Overflowing brake fluid will damage the paintwork.
- Position brake reset 5 A1A 1E6 in the brake caliper and hook adapter plate (1) into the brake piston.
- Move brake reset 5 A1A 1E6
to the stop by pressing the trigger button (2).
- Keep trigger button (2) pressed and turn lever (3) clockwise until the brake piston is turned back fully.
- Relax brake reset 5 A1A 1E6 by pressing release button (4) and remove it from the brake caliper.
WARNING:
Unintentionally applying the parking brake
Injury hazard!
Injury hazard!
- On vehicles with "Remote Engine Start" (SA1CR):
- Starting the engine while working on the braking system is strictly forbidden. When starting the engine via "Remote Engine Start", the parking brake is automatically applied.
- Deactivate the function "Remote Engine Start".
- Open the hood before working on the braking system. This prevents the engine from being started.
WARNING:
Vehicle may slip off the vehicle hoist if the vehicle hoist is handled incorrectly
.
Danger! Immobilization period-threatening injuries!
Danger! Immobilization period-threatening injuries!
- Observe safety instructions on raising the vehicle using a vehicle hoist.
- For additional information see: 00... RAISE THE VEHICLE USING A VEHICLE LIFT
CAUTION:
Effects on other persons
.
Injury hazard! Risk of damage!
Injury hazard! Risk of damage!
- Make sure that no other persons are in or around the vehicle.
NOTE:
TECHNICAL INFORMATION
If the front brake pads and the rear brake pads are exchanged together, the parking brake button must be operated 1x and released again after completion of the first exchange (e.g. front brake pads).
If not observed, a fault memory entry will take place.
If the front brake pads and the rear brake pads are exchanged together, the parking brake button must be operated 1x and released again after completion of the first exchange (e.g. front brake pads).
If not observed, a fault memory entry will take place.
NOTE:
TECHNICAL INFORMATION
Before first working on the DSCi brake (integrated brake), the "DSCi" web-based training must be passed successfully.
The "DSCi" web-based training is started in the Learning Management System (TMSi).
Before first working on the DSCi brake (integrated brake), the "DSCi" web-based training must be passed successfully.
The "DSCi" web-based training is started in the Learning Management System (TMSi).
NOTE:
TECHNICAL INFORMATION
After a brake pad exchange and before pressing the brake pedal: It is imperative to apply the electromechanical parking brake.
If this is not observed, a CC message appears and the brake system switches to the emergency program. The brake booster is no longer active.
After a brake pad exchange and before pressing the brake pedal: It is imperative to apply the electromechanical parking brake.
If this is not observed, a CC message appears and the brake system switches to the emergency program. The brake booster is no longer active.
NOTE:
TECHNICAL INFORMATION
During work on the rear brake, it must be ensured that the button for the electromechanical parking brake cannot be pressed.
During work on the rear brake, it must be ensured that the button for the electromechanical parking brake cannot be pressed.
NOTE:
TECHNICAL INFORMATION
General information on changing the brake pads:
For vehicles older than 48 months it is recommended to replace the retaining spring or expanding spring.
The brake pad wear sensor must be replaced once it has been removed because the brake pad wear sensor loses its retention capability in the brake pad.
A CBS reset must be done after every brake pad exchange:
A CBS reset in the vehicle is possible in the event of a partially ground down brake pad wear sensor. The CBS display in the Central Information Display (CID) is active.
In the event of a brake pad wear sensor that is not partially ground down , a CBS reset is only possible with the diagnostic system. No CBS display in the Central Information Display (CID).
If adhesive bonded brake pads are installed, the brake pads must be replaced after releasing the adhesive bond!
General information on changing the brake pads:
For vehicles older than 48 months it is recommended to replace the retaining spring or expanding spring.
The brake pad wear sensor must be replaced once it has been removed because the brake pad wear sensor loses its retention capability in the brake pad.
A CBS reset must be done after every brake pad exchange:
A CBS reset in the vehicle is possible in the event of a partially ground down brake pad wear sensor. The CBS display in the Central Information Display (CID) is active.
In the event of a brake pad wear sensor that is not partially ground down , a CBS reset is only possible with the diagnostic system. No CBS display in the Central Information Display (CID).
If adhesive bonded brake pads are installed, the brake pads must be replaced after releasing the adhesive bond!
NOTE:
TECHNICAL INFORMATION
To prevent damage to the surface coating: With floating calipers on the brake caliper mounting bracket or with fixed calipers in the brake caliper housing, do not clean the contact surfaces for the brake pads to the extent that it is possible.
Clean the contact surfaces with brake cleaner (BMW part number 83 19 2 154 780). Next, apply a thin coat of brake pad paste (BMW part number 83 19 2 158 851 for 3 g) or 83 19 2 158 852 fr 100 g).
Spread brake pad paste on the marked surfaces with a brush.
For additional information see: 34 00... BRAKE PAD PASTE .
To prevent damage to the surface coating: With floating calipers on the brake caliper mounting bracket or with fixed calipers in the brake caliper housing, do not clean the contact surfaces for the brake pads to the extent that it is possible.
Clean the contact surfaces with brake cleaner (BMW part number 83 19 2 154 780). Next, apply a thin coat of brake pad paste (BMW part number 83 19 2 158 851 for 3 g) or 83 19 2 158 852 fr 100 g).
Spread brake pad paste on the marked surfaces with a brush.
For additional information see: 34 00... BRAKE PAD PASTE .
Preliminary work
- Refer to REMOVING REAR BRAKE PAD WEAR SENSOR .
- Release the screws (1); if necessary use the hexagon head (2) for counter support.
- Remove brake caliper (3).
- Tie up the brake caliper (1) with the special tool (cable tie) 2 413 317
.
Do not hang the brake caliper from the brake hose.
- Equipment version of the design clip:
- Lift retaining tab (1) with a screwdriver (2) and remove the design clip in the arrow direction.
- Remove the brake pads (1) from the brake caliper in arrow direction.
- Mark any worn brake pads.
If there is brake lining backplate wear on one side, they must not be mixed up.
- Remove the sliding plates (1).
NOTE:
TECHNICAL INFORMATION
When pressing the brake piston back, note the brake fluid level in the expansion tank.
Overflowing brake fluid will damage the paintwork.
When pressing the brake piston back, note the brake fluid level in the expansion tank.
Overflowing brake fluid will damage the paintwork.
- Position brake reset 5 A1A 1E6 in the brake caliper and hook adapter plate (1) into the brake piston.
- Move brake reset 5 A1A 1E6
to the stop by pressing the trigger button (2).
- Keep trigger button (2) pressed and turn lever (3) clockwise until the brake piston is turned back fully.
- Relax brake reset 5 A1A 1E6 by pressing release button (4) and remove it from the brake caliper.