46 Checking brake light switch setting · Brake light switch setting Checking brake light switch setting

911 Carrera (996) Brakes -Brake mechanics 46 Checking brake light switch setting Brake light switch setting Checking brake light switch setting (No.1) The switch travel of the brake light switch is designed so that the brake light lights up before The pedal must move a perceptible distance of braking pressure builds up. The switches are approx. 5 to 10 mm before the brake light self-adjusting and are mounted in a bayonett lights up. lock in the pedal block by turning them through At the same time, check (make sure) that the 90°. By way of its self-adjustment function, brake light lights up before the pedal meets the switch compensates for the tolerances in perceptible resistance or before brake pressure the pedals during initial assembly. However,if builds up. the switch is "overpressed" during work on the pedals or on the brake unit, the switch travel or pedal travel up to the switching point is lost. The consequence: The brake lights are always on or flicker when travelling over bumps. In vehicleswith cruise control, the cruise control can be deactivated as a result of vehicle vibrations under certain circumstances. Therefore,the switches must be readjusted after any work in which the brake pedal is moved out of its "normal" position (for example, work on the pedals or on the brake unit). 620/1-96 Adjusting switch if pedal travel is too small There are two possibilitiesto adjust the switch if the pedal travel to the switching point is too small. 1st possibility: Press the brake pedal and pull out the switch plunger. Releasethe pedal. Check adjustment. 46 Checking brake light switch setting 46 -13