Your problem sounds exactly like mine. My Engine light came on and the code was for the Engine Coolant Temperature Sensor.

I am in the process of trying to replace this part myself, so I'm not sure yet that it will solve the problem. Any advice on changing this part is appreciated. Thanks!

Thanks for the confidence that what the Volvo dealer said was wrong. I really appreciate it. I have called some shops which specialize in exhaust and mufflers and they have offered a free look and were confident I could replace only the flexpipe. Thanks again!
This website is wonderful.

I have a 2000 S40 Turbo. I have recently found that under the car, exhaust is leaking from a crack along the flexpipe in front of the catalytic converter. I called my local Volvo dealer here in MD about fixing/replacing that piece in particular. They told me that for this model, I would have to repl...