Workshop Manuals Factory service & repair Vauxhall
01 General Vehicle Information02 Maintenance, Body and Chassis Sheet Metal Parts, Frame03 Paint04 Body Equipment05 Heating, Ventilation, Air Conditioning (HVAC)06 Front Wheel Suspension, Wheels and Tyres07 Rear Axle and Rear Wheel Suspension08 Brakes09 Engine and Engine Aggregates10 Clutch and Transmission11 Fuel and Exhaust System12 Steering13 Electrical Equipment and Instruments14 Accessories
Vauxhall Corsa C08 · Brakes
08 · Brakes

Brake Servo, Check (Brakes)

Make
Vauxhall
Model
Corsa C
Section
Repair Instructions › Brake Servo, Check
BrakesBrake Servo, Check

Brake Servo, Check

Note:   For vehicles with diesel engine, if the brake is activated for a long period, the vacuum pressure will be exhausted. The pedal travel is shorter as there is no brake force amplification from the brake servo, but within a very short time after building up the vacuum the pedal travel returns to normal. This behaviour is often described by drivers as "On lengthy braking, the brake pedal goes right down to the floor" and/or as a "spongy pedal". This is not a cause for complaint in vehicles with diesel engines.

1.   Reduce negative air pressure in brake servo
Note:   With the engine off, by depressing the brake pedal several times
2.   press down brake pedal and maintain pressure
•   Start engine
Note:   The brake system is operating correctly if the brake pedal drops further. If the brake pedal does not drop, the vacuum system (vacuum line, non-return valve) must be checked. If no fault can be found there, the problem rests with the brake servo itself.

Parts & tools for this job For Vauxhall Corsa

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