Thanks for the info.I have just started working on the S40 myself. Before we always took it to the dealer for service. last time they did not clean the battery and my wife was stuck on the freeway off ramp in the middle of the lane with a dead car.

Hello Everyone,
I have a 2001 S40 with the check engine light on. My question is were do you connect the code reader? I have one I bought 5 years ago, do all the OBD11 readers work with Volvos? Thanks.