Hey all, what a great forum! I have a question.. I left my 240D sitting for a week and when I started it, it took 5-10 seconds to finally start. It'll start up again fine after the initial start but when it's been sitting for a while (some hours) it takes 5-10 seconds to start again. Now it's not starting AT ALL. When I press the fuel primer (new-style black pump) I hear a squeak every time that sounds like it's coming from somewhere other than the pump itself?? I can't tell! Does the squeak every pump mean there's a huge leak? Or am I just hearing the normal operation of the hand pump...

Here's some info on it that may help to diagnose the problem: I just replaced my fuel filters on my 240D two weeks ago since I had some fungus growing, and it's been running great (I have 80% bio in there now, and used startron enzyme treatment), the clear pre-filter is full of fuel, and one of my injector nuts or something around it looks like it's leaking fuel slightly.

Is this an air leak in the fuel delivery system? The fact that it'll start easy once I get it running seems to suggest that? But it's not starting at all anymore-- so could it be something more sinister like compression? The oil pressure gauge goes up to 3 after I try to turn it over for a little bit.

Any help would be greatly appreciated!! Not only to help my car but to put my anxious mind to rest..