Hi everyone,my first post on this,or any,forum.I have a 1997 300tdi,green white and rust. A few weeks ago she stalled,started again but smoky and no power.Waited long enough for the AA to arrive and she decided she was fine. This has happened again several times more recently. Also she intermittently won' t switch off with the key,needs stalling. I would love to be mechanically able,but the last thing I tried was fitting an air filter,turned out it was too small and therefore didn't fit properly and it smashed the bracket through vibration,and all the while(six months) it wasn't filtering the air which was bypassing it. I'm telling you this so you can see I need help ... So far the injection pump solenoid has been changed,as has the fuel filter, and the wiring behind the ignition has been looked at in case of arcing between terminals. I had nothing to do with this work myself.... Friends have told me I need to replace the fuel injection pump but I wouldn't want to do that before exploring other possibilities because of the money involved. Any ideas would be much appreciated.