Self-Leveling Suspension Rear Shock Absorbers - Leaks

88BMW07

Group 37 Integrated Suspension Systems
Bulletin Number 37 02 88 (1713) Page 1 of 1
Montvale, NJ September 1988 Technical Dept.
SUBJECT: Oil Leakage from Rear Shock Absorbers

MODELS: All (equipped with self-levelling suspension)

Situation: The high system pressure inherent in the self-levelling suspension system can cause oil to seep past the piston rod seal of the shock absorber. This seepage allows a thin film of oil to collect on the body of the shock absorber, and this film becomes even more apparent as it tends to collect dust.

This seepage is normal and is not to be considered a defect. Excessive oil leakage will be evidenced by distinct drops forming on the shock absorber body.

Also, when the vehicle is raised on a lift with the wheels hanging free, it is possible that there will be an overflow from the reservoir, due to the unusual amount of oil being returned to the reservoir. This is also considered normal.