Seller notes

2000 Audi B5 S4 ECU ECM 8D0 907 551 A (8D0907551A) Engine Computer PCMAll modules and electronic items for sale have been thoroughly tested and confirmed to be in working order prior to removal from donor vehicles. Please read before placing an order Modules from 1998 and up vehicles may have anti-theft systems that further complicate installation of used ECM modules. Replacing an ECM in most cases require re-programming by a qualified Technician or high-tech automotive locksmith. Please verify ...

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