HOP刹车灯开关 3B0945511C 适配奥迪A3 A6 大众高尔夫帕萨特

This HOP brake light switch has sturdier construction and materials; the housing uses thickened engineering plastic, contacts are gold-plated, and it offers stable high-temperature and wear resistance; unlike some aftermarket parts that become stiff or poor contacts after months. OEM number 3B0945511C; also compatible with 1J0945511A/B/C/D; fits Audi A3, A6, VW Golf, Passat, and other models. Function: controls brake light illumination and sends brake signals to the transmission and ECU to ensure proper shifting logic and cruise control. Replacement difficulty is low; simply unplug the old switch and plug in the new one; no extra adjustments required, but cut power first to prevent short circuits.