Two problems related to alternator/generator/regulator have been reported for the 2000 Volvo S40. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Volvo S40 based on all problems reported for the 2000 S40.
Bought a new 2000 Volvo S40 in April of 2000. The car now has 60,000 miles on it. . . . Light driving by most standards. At 18,000 miles rear brakes and rotors were replaced at a cost of more than $400. Front and rear brakes have been replaced another time since then. On 9/21/05, I have now also had to replace the alternator at a cost of $600. This car only has 60,000 miles on it. I have read a lot of other discussions online from other 2000 Volvo S40 owners who also complain about the car running through brakes every 15-20,000 miles.
Dealer replaced, in the past two years, headlights/alternator/tail lights, and signal lights, but the problem was still occurring.