Audi A8 4E On-Board Control Unit Control unit suitable for replacing xenon headlights with bi-xenon headlights with cornering light For replacement of the on-board control unit, please contact a local Audi dealer Connect the vehicle to the Audi diagnostic tool - Current codes must be copied to the new control unit - After replacement, the component protection must be removed (online connection required) Scope of delivery: Control unit Note: Not suitable for the USA