how can i fix my vauhall zafira?

Hi
Do you mean the switch on the brake pedal is putting the brake lights on when you press it manualy but not when you press the brake pedal ? If so disconnect the wiring plug from the switch, push the actuation pin fully in, depress the brake pedal then pull the pin fully out so it contacts the pedal. release the pedal to set the pin and check the operation of the brake lights.

paul
March 2008