Audi A3 8L 1998 - Light Switch Replacement without Identification Number: Rear Fog Lights Only

The discussion addresses replacing a broken light switch in an Audi A3 8L (1998) without an identification number. The original switch controls only rear fog lights, while available replacements often include front fog lights and halogen light functions. It is confirmed that switches with additional functions will work correctly; the rear fog lights will activate by pulling the switch further, as front fog lights occupy the first position. The plug and wiring connections are compatible across variants, including switches from Golf 4, despite minor differences in lighting dimmer functionality. Catalog and part numbers differ: the catalog number 8L1941531HB98 (post-01/10/2002) is recommended for ordering, while part numbers like 8L1941531E are likely compatible if mechanical and electrical functions match. The switch with number 8L2941531H was successfully installed and fully functional. It is also noted that switches from Skoda fit without issues. A question about compatibility with Audi A2 was raised but not conclusively answered. Visual verification of the switch's rear connector is advised to ensure compatibility before purchase.
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