Description
The A0255455632 is an original engine control module fitted to the Mercedes-Benz W210 E-Class, the well-regarded executive saloon and estate spanning production from 1995 to 2002. Designed to manage the ignition, fuelling and emissions systems of the relevant W210 petrol powertrain, this ECU ensures the engine responds correctly to driver input while maintaining compliance with the emissions standards applicable at the time of manufacture.
The module reads sensor data in real time — from the throttle body, oxygen sensors, mass airflow sensor and coolant temperature sensor — and uses this to calculate precise injector pulse widths and ignition advance. Its adaptive learning function allows the unit to compensate for engine wear over time, helping maintain consistent performance and fuel economy as the powertrain ages through its service life.
A failing ECU on the W210 E-Class may cause symptoms including engine hesitation during acceleration, difficulty starting in cold conditions, random stalling at junctions, or stored fault codes that cannot be cleared and do not correspond to defective sensors or wiring. These issues often worsen gradually as the unit’s internal components degrade with age.
This is a genuine used OEM module removed from a W210 E-Class and tested for functionality before despatch. As a second-hand control unit, professional adaptation to the target vehicle — including immobiliser synchronisation — may be required. Always verify the OEM number against your existing module before purchasing.
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/
