Volvo S40 owners have reported 3 problems related to power assist brake (under the service brakes category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Volvo S40 based on all problems reported for the S40.
Power brakes don not work well.
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all problems of the 2000 Volvo S40
🔎.
Defect exists with vacuum seal on brake pump. When vehicle is "cold" there is no pressure on brakes, and pedal goes to the floor, but vehicle will not stop. Vehicle has been checked by dealer 3 times.
Brakes don't engage when car has been sitting overnight or for more than 6-8 hours.