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Home >> BMW >> 2025 >> 230i >> Repair and Diagnosis >> Suspension >> Rear Suspension >> Rear Axle -- Repair (G42) >> 33 10 Rear Differential >> 33 10 023 Replacing radial shaft seal for output shaft on rear axle differential on the left or right >> Replacing the radial shaft seal for the output shaft on the left or right

Replacing the radial shaft seal for the output shaft on the left or right

WARNING: Vehicle may slip off the vehicle hoist if the vehicle hoist is handled incorrectly. 
Danger! Immobilization period-threatening injuries! 
WARNING: Car may slip off the vehicle hoist where components are supported. 
Danger! Immobilization period-threatening injuries! 
  • Secure the vehicle hoist against lowering and lifting.
  • Make sure that the vehicle does not lift off the mounting plates on the vehicle lift.
CAUTION: Contact with hazardous substances. 
Health impairment. 
  • Note and comply with the Safety Instructions on the containers and the instructions on the manufacturer's safety data sheet.
  • Conduct all work in appropriate personal protective equipment only.
CAUTION: Acid combustions may result from skin contact with oil or inhaling oil vapors. 
Risk of acid bums from contact with oil! 
  • Wear safety goggles and hand protection.
  • Ensure adequate ventilation.
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.

Preliminary work 

NOTE: Description is for left component only. Procedure on the right side is identical.

Replacing the radial shaft seal for the output shaft 

NOTE: TECHNICAL INFORMATION 
Radial shaft seal ring are equipped with an installation protection ring. The installation protection ring is used to protect the sealing lip when installing the output shaft.
NOTE: TECHNICAL INFORMATION 
Different variants may be installed depending on the vehicle equipment.

Follow-up work