Descrizione
OEM number 7786887 references this genuine used, tested engine ECU control module for the BMW E46 — a part compatible with specific late-production variants of the 3 Series lineup that ran until 2006. Sourced from a written-off E46 and validated against the original manufacturer specification, it arrives ready for professional installation.\n\nThis control module oversees the fuel injection and ignition system for its specific engine variant, using data from the throttle position sensor, mass airflow meter, and lambda probes to adjust injection timing and quantity in real time. It also manages secondary air injection activation during cold start to reduce hydrocarbon emissions in the catalyst warm-up phase.\n\nOwners of E46 models with a suspect ECU often report a vehicle that starts and runs normally when cold but develops misfires and rough idle once at operating temperature — a pattern consistent with a heat-sensitive internal ECU fault. Other indicators include stored fault codes, a check engine light, and an engine that enters limp mode after sustained highway driving.\n\nOffered as a genuine used and tested part, OEM number 7786887, this ECU should be verified against the specific E46 engine and build variant in question before purchasing. Professional installation and BMW-compatible diagnostic equipment will be required for coding and post-fit adaptation. Returns are accepted within the standard 14-day window.
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/
