Johnny4

Hi I've a 350 cdi sports coupe and when I start it all fine but I can be driving it and it goes into sports mode and I cannot switch it back to comfort mode but soon as I switch of engine and back on it knocks it of then might drive for 20 miles and same happen again any idea of the problem and how to solve it thanks

Johnny

PaulE550

Since it's intermittent, if you have a simple volt meter you might want to check the C/S mode switch to see if there is either a faulty / loose connection or the switch itself is faulty. Beyond that, you would have to have the electrical schematics to the car to know which relay might be faulty. Just a suggestion, if you're into troubleshooting the vehicle yourself. Doesn't sound like a major part failure, since you say the vehicle resets itself when re-started.

Johnny4

If I switch car of if it going into sports mode I can knock car off and switch works as it should but ever so often it stick in sports mode so can it still be switch or other problem and when it comes to electrics I stay clear I'll make things worse if I do something I shouldn't just thought someone might of had same problem and solved it thanks for advice

Johnny