Hi all my dad is having problems with his BMW 320 D (2004) it will not start when the weather is cold it does eventually start after ages of cranking attempts, when it fails to start the fuel pump cannot be heard running this indicates a fuelling problem.

Both fuel pumps and fuel pump relays have been changed as a result of diagnostics testing by specialist garage.

The problem still persists and neither the garage or BMW can help please help if anyone can.

Regs Luke

 

thats quite odd it usuaully ends up being the pre-supply pump that fails.. you have any more info on what has already been checked and any other info and i'll run it by the senior tech @ work and see what he thinks

 

I forgot to put that once it has finally started it will then start no probs!
What i know that has been done is both fuel pumps have been replaced and the fuel pump relay, this is all that the diagnostics have shown, BMW suggest that it could be an immobiliser fault / keys or ignition switch, I did see on the net about faulty oil pressure switch poss. I am really with this i like simple cars. Any help will be very appreciated