One problem related to power train 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.
I have a 2001 Volvo S40. At about 90,000 miles the gear shift button broke. Now you can change the gears with out pressing the brake pedal. I have small children so I have to keep my car locked at all times when I'm not in it. If they were to be in it they could pull it out of park with no problem and the car would start to roll. I am very concerned about the problem because I'm sure I'm not the only one who has had this problem and it is a safety issue. The shifter on the internet is over $250. 00 to fix it then you have to pay to have it put in.