Description
Bearing OEM number 0261200522, this engine ECU control module is a genuine used, tested Bosch Motronic unit suitable for the BMW E30 and E36. A sibling to the 0261200520, it covers specific engine and market variants across both generations and was sourced from a written-off vehicle before being checked against manufacturer data.\n\nThis Motronic ECU handles the complete spark and fuel management strategy for the inline engine it governs. It reads crankshaft reference and speed signals, knock sensor data, and exhaust oxygen feedback to deliver properly timed spark events and calculated injection pulses, achieving consistent combustion efficiency from cold start through to full load.\n\nA failing ECU on the E30 or E36 can produce a range of symptoms: engine stumble at steady motorway speeds, random misfires on individual cylinders, black smoke from over-fuelling, difficulty sustaining idle after a cold start, and illumination of the engine management warning light with associated diagnostic fault codes stored in memory.\n\nThis is a used, fully tested genuine ECU sold under OEM number 0261200522. Match this reference carefully to your E30 or E36 engine and build specification before purchasing. The unit must be installed by a qualified technician, and coding or immobiliser adaptation may be required to complete the installation. Returns are accepted within 14 days.
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/
