Replace radial shaft seal

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.

WARNING: Unintentionally applying the parking brake
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!

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!

Make sure that no other persons are in or around the vehicle.

NOTE: RISK OF DAMAGE
Damage to rear axle differential.
Failure to comply with the oil specifications can result in serious damage to the rear axle differential.

After completion of repair work, check the transmission oil level in the rear axle differential.
Use only the approved final drive transmission oil.

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).

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 The brake booster is no longer active.

NOTE: TECHNICAL INFORMATION
During work on the rear brake, it must be ensured that the button for the electromechanical parking brake cannot be pressed.

NOTE: TECHNICAL INFORMATION
Perform wheel alignment after installation.

Preliminary work

Refer to REMOVING REAR LEFT OR RIGHT WHEEL .
Refer to LOOSENING THE OUTPUT SHAFT FROM THE WHEEL BEARING .
Refer to REMOVING REAR BRAKE PADS .
Refer to TENSIONING THE COIL SPRING .
Refer to RELEASING THE BOTTOM WISHBONE AND THE CAMBER CONTROL ARM FROM THE WHEEL CARRIER .
Refer to RELEASING THE OUTPUT SHAFT ON REAR AXLE DIFFERENTIAL .
Refer to REMOVING OUTPUT SHAFT .

Prepare the special tool 0 490 466 (00 5 010) with the special tools 0 494 649 (21 2 230) (without the screw) and 0 493 384 (11 1 212) .

Courtesy of BMW OF NORTH AMERICA, INC.

Pull out and remove the radial shaft seal (1) with the special tools 0 490 466 (00 5 010), 0 494 649 (21 2 230), and 0 493 384 (11 1 212) .
Replace radial shaft seal (1).
Parts: Radial shaft seal

Courtesy of BMW OF NORTH AMERICA, INC.

Coat the housing of the sheet metal flange of the radial shaft seal with approved rear differential fluid.
Strike in the radial shaft seal with the matching special tool 0 495 860 (33 5 130) or 0 495 862 (33 5 140) up to the stop.
Remove special tool.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALLING THE OUTPUT SHAFT .
Refer to SECURING THE OUTPUT SHAFT ON THE REAR AXLE DIFFERENTIAL .
Refer to ATTACHING THE WISHBONE AT THE BOTTOM AND THE CAMBER CONTROL ARM ON THE WHEEL CARRIER .
Refer to RELIEVING TENSION ON COIL SPRING .
Refer to INSTALLING REAR BRAKE PADS .
Refer to ADDING REAR DIFFERENTIAL FLUID .
Refer to FASTENING THE OUTPUT SHAFT ON THE WHEEL BEARING .
Refer to INSTALLING REAR LEFT OR RIGHT WHEEL .
Refer to PLACING THE BRAKE PADS ON THE BRAKE DISK/PUTTING THEM INTO OPERATION .
Refer to MEASURING THE RIDE HEIGHT OF REAR AXLE AND ADJUSTING THE NORMAL POSITION .
Refer to TIGHTENING THE SCREW CONNECTION TO THE SHOCK ABSORBER AND THE WHEEL CARRIER .
Refer to PERFORMING CHASSIS ALIGNMENT CHECK .
Refer to TIGHTENING THE SCREW CONNECTIONS TO THE WHEEL CARRIER .