Description
This electronic ignition switch is a genuine Audi original part for Audi A4 B8, A5 8T and Q5 8R models. The primary OEM number is 8K0909131D, with alternate reference 3330430102. It is the ignition switch and lock control unit used within the vehicle’s start authorization and steering column area.
Its job is to recognize the key insertion and ignition position request, then switch on the relevant electrical circuits so the vehicle can power up and start correctly. This unit works as part of the ignition and immobilizer-related system, helping manage the transition from accessory power to full ignition and engine start.
Common signs of a faulty unit include intermittent no-start issues, failure to detect the key, ignition that will not turn on, steering lock or start authorization warnings, or loss of power to ignition functions. In some cases, drivers may notice the dashboard remains inactive or the engine will not crank despite a good battery and key.
This is a used original part, removed from a vehicle and tested before sale. Match the exact OEM number 8K0909131D and alternate number 3330430102 before ordering. Professional installation is recommended, and coding, programming or adaptation may be required after fitting.
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/
