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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Components (Brake System) (1 Of 2) >> 47 Hydraulic Components >> Brake Booster/Brake Master Cylinder >> Actuator Pin Information

Actuator Pin Information

The actuator pin must always be pushed in the hole in the brake master cylinder directly on the Brake Pedal Position Sensor -G100-.

Do not bend the actuator pin,

If this pin is missing or is damaged, the brake lamp will not function.

The actuator pin cannot be replaced separately.