Description
This electronic ignition switch key slot is a genuine Volkswagen unit for Passat B6 and CC models. It is identified by primary OEM number 3C0905843R and alternate reference 33303401. Designed as the dash-mounted key entry and start authorization switch, it is the correct type of component for vehicles using the electronic key slot system.
Its job is to receive the key fob, read the key signal, and trigger the vehicle’s ignition and starting sequence. The unit works as part of the immobilizer and start authorization system, helping the car recognize the inserted key and switch the electrical system through the required ignition positions.
Common signs of a faulty unit include the key not being recognized, intermittent no-start issues, no ignition response when the key is inserted, warning messages related to key authorization, or a key that sticks in the slot. Electrical wear inside the switch can also cause inconsistent dashboard power-up or failure to engage the start sequence.
This is a used original part, removed from a vehicle and tested. Match the exact OEM number before ordering. Professional installation is recommended, and coding, programming, or adaptation may be required depending on the vehicle’s immobilizer and start authorization setup.
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/









