One problem related to power assist hydraulic brake has been reported for the 2001 Volvo S40. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Volvo S40 based on all problems reported for the 2001 S40.
Brakes do not stop the car for the first few applications. Pedal does not fade. Excessive pedal pressure required. Some other years of this model are being recalled for the same complaint. No crash, injuries or accident as a result of failure.