CLK 430 Cabriolet (208.470) V8-4.3L (113.943) (2000)
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Vacuum Brake Booster: Description and Operation
Travel Sensor
Circlips Of Diaphragm Travel Sensor
The version of the circlip differs for the Lucas and ITT/Ate brake booster.
When inserting the new circlip, it is essential to ensure that the correct one of the two circlips from the parts kit is used.
It is possible to refer to the sticker on the brake booster to determine whether it is a Lucas or ITT/Ate brake booster.
Seal Of Diaphragm Travel Sensor
The diaphragm travel sensor must only be replaced if no vacuum is present in the brake booster. Otherwise, there is a risk of the seal dropping into
the brake booster when the diaphragm travel sensor is removed, and in this case the complete brake booster would have to be replaced.
GF42.31-P-4000-01A BAS Brake Booster, Design
GF42.31-P-4000-01A BAS brake booster, design
Component Identification
Vacuum-powered brake booster with one or two diaphragms. The BAS solenoid valve (y1) and the BAS release switch (s1) are permanently built into
the BAS brake booster (A7/7) (cannot be changed). The BAS diaphragm travel sensor (b1) and, if necessary, the BAS control unit (N48) are fitted
onto the brake booster (can be changed).
GF42.31-P-4000-02A Brake Booster BAS, Function
GF42.31-P-4000-02A Brake booster BAS, function
