BMW TSB # SI B 52 02 03 Seats

SUBJECT: Replacement of Seat Adjustment Isolator Pad

Many BMW Z3 Customers have complained about the seats moving backward and forward based on acceleration or under braking, BMW Has recognized this problem. The Urethane Isolator pad used on these vehicles may compress and wear down prematurely causing excessive play in the mechanism. BMW has improved the material used in the isolator pad in production as of January 2000.

A parts kit and repair procedure has also been developed to eliminate the need to replace the seat track assembly on cars that exhibit this problem