Mercedes w163 (early) Door Lock Mechanism LEFT Rear vacuum acuator latch locking Door Lock Mechanism LEFT/Driver side Rear Brand NEW part with full 1 year warranty. Mercedes part# 163 730 23 35, fits USA version cars only. Genuine Mercedes part, recently made: not been lying around. PLEASE NOTE the chassis splits. See Models Chart BELOW. Not sure about your car? email us your VIN to confirm.