Description
8D0907557B is the OEM part number for the Engine ECU Control Module removed from an Audi A4 B5. This is a genuine factory unit, not an aftermarket replacement, meaning it was built to the exact specifications required by Audi for this application. Sourced directly from a donor vehicle, this module has been carefully removed and tested to confirm full working condition before being listed for sale.
The Engine ECU Control Module is responsible for managing critical engine functions, including fuel delivery, ignition timing and sensor communication. A faulty or failing unit can cause a wide range of issues such as misfires, poor fuel economy, warning lights and complete no-start conditions. Replacing it with a genuine OEM part ensures the system operates exactly as Audi intended, without the compromises that can come with aftermarket alternatives.
Buying used OEM is a practical and cost-effective solution for owners looking to restore their Audi A4 B5 to proper working order without paying main dealer prices for a new unit. Every part we list at GiantParts has been inspected and tested before dispatch to give you confidence in what you are receiving.
Please verify compatibility using your vehicle identification number before purchasing, and confirm the part number 8D0907557B matches your original unit. Some ECU modules may require coding or programming to your specific vehicle after fitment.
We ship worldwide and pack all parts securely to ensure safe delivery. If you have any questions about this part, our team is happy to help.
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/
