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Audi A4 B8, A5, A6, A8 battery location and how to jump start
Car Front Back Left Right Central Lock Unlock Safety Button Switch Door Key Set for Audi A4 B8 S4 4 Pins 8KD962108C 8KD 962 107C|Car Switches & Relays| - AliExpress
Window Switch Button Set Fit For A4/S4 B8 08-12 4H0959, 4Pcs/Set Left Right ABS Driving Glass Electric Switch Button Set,Black : Amazon.sg: Automotive
What does this button do? A4 B9 driver side door. : r/Audi