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Home >> BMW >> 2022 >> M4 Competition >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Rear Axle -- Repair M4 (G82 & G83) >> 33 21 Output Shafts >> 33 21 000 Removing and installing/replacing left or right output shaft (M4 2021-2023) >> Remove output shaft

Remove output shaft

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! 
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 The brake booster is no longer active.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 

NOTE: TECHNICAL INFORMATION 
It is mandatory to replace the radial shaft seal in the rear axle differential each time after having removed the output shaft.
NOTE: Description is for right component only. The procedure on the left side is identical.
NOTE: TECHNICAL INFORMATION 
Conduct the following operation with the assistance of a second person.
G14904921Courtesy of BMW OF NORTH AMERICA, INC.