KS-ecs 8E0941531B for Audi A4 S4 OE Style Headlight Switch with Auto Function OEM part #: 8E0941531B; OE style headlight switch with auto function Function: can control headlights, driving lights and fog lights Easy to install, plug and play, tool-free; have 17 small pin connector in the back, better check the pins to see if they fit your model (there are different configurations of size and position of each pin) Please note the vehicle filter does not fit all versions of the compatibility as it is for search purpose only; please review our interchange below or e-mail us your full reg number or chassis number/ V.I.N?number prior to ordering