Description
OEM reference A0275454532, Bosch supplier number 05045123. Genuine used Mercedes-Benz W220 SAM Control Module — removed from a running vehicle and tested.
Serving as the central power distribution hub for the body electronics, the SAM (Signal Acquisition and Actuation Module) is an essential component of these Mercedes-Benz models. It houses the main fuse matrix and relay array for the vehicle body circuits, managing power distribution and signal routing for exterior lighting (headlights, taillights, fog lights), windscreen wipers and washers, horn, electric windows, and numerous other body and chassis functions. Front and rear SAM variants exist — confirm which is required. The module communicates with the instrument cluster, engine management and comfort systems over the vehicle CAN bus.
Exterior lighting failures — headlights, taillights or fog lights ceasing to operate; windscreen wipers or washers becoming unresponsive; fuses blowing repeatedly upon replacement; fault codes logged under the SAM address in the body control unit via Star Diagnosis; or loss of CAN bus communication with the SAM module itself.
Good used condition. Always cross-reference BOTH OEM numbers (vehicle OEM and Bosch/supplier number) with your specific vehicle and build date before ordering — SAM variants differ between model years, body configurations and optional extras. Professional installation is required. The replacement SAM must be configured and coded to the vehicle using Mercedes-Benz Star Diagnosis (XENTRY or SIM/DAS). Unmodified parts may be returned within 14 days of receipt.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
