Description
Identified by OEM part number A1121532679, this engine control module is a genuine <a href="/brand/mercedes-benz“>Mercedes-Benz component originally specified for the W203 C-Class, built from 2000 through to 2007. Extracted from a written-off vehicle and benchmarked against factory data, this tested unit is ready for professional fitment. ¶ The W203 C-Class ECU this module supports handles torque demand management and drive-by-wire throttle control. It interprets accelerator pedal position and vehicle speed inputs to modulate engine output while co-operating with the automatic gearbox or manual transmission for smooth gear changes and responsive acceleration at all engine speeds. ¶ A defective ECU on the W203 often presents as jerky throttle response, refusal to rev beyond a set limit, limp-home mode activation, fault codes for CAN-Bus communication failure, and unexpected power cuts during normal driving. Drivers may also notice erratic behaviour when cold-starting after overnight parking. ¶ Removed from a serviceable written-off C-Class and tested before dispatch, this is a genuine OEM replacement. Check that part number A1121532679 corresponds to your original unit. Professional installation is essential, and SCN coding or variant coding will be required after fitment.
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/
