One problem related to power assist brake has been reported for the 2000 Volvo V40. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Volvo V40 based on all problems reported for the 2000 V40.
Unpredictable extended braking distance on Volvo models V40 and v70. Volvo has a TSB that remedies this dangerous problem (should be a recall!!!).