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BMW 320TDI HARD TO START WHEN WARM

I have a 320 BMW tdi se E46 2002 .IT WILL START FROM COLD OK, BUT AFTER THE ENGINE HAS WARMED UP, AND THE ENGINE IS SWITCHED OFF(STOPPING FOR FUEL ETC)THE CAR WILL TAKE A LONG TIME TO START, OR IT WILL NOT START AT ALL, UNTIL IT HAS COOLED DOWN FOR A FEW HOURS. ANY IDEAS.

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    Michael Papadopoulos Sep 01, 2012

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I have the exact problem, and desiels have glow plugs not spark plugs. I have changed them but no good. Looks like mines either one or a number of my injectors are failling or leaking pressure. Have had a diagnostic done and it relates to the injector, but need a new battery as its fried from all the starting, and could not replicate the fualt once the battery was so low

Once i have changed the battery i will try to replicated the fault and confirm the injector fault and look into the cost of replacement.

Hope this helps, if i can help any more give me a shout

Posted on Dec 11, 2009

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Probable Spark plugs have blown. I would do a good tune up and replace your fuel filter, plugs and wires, oil and oil filter, air filter. Your system builds enough fuel pressure when it's cold becuase there is technically less are in your combustion chamber when it's cold so it can build more fuel pressure to start. When it's warm there's less room to build pressure to start your motor. So do a good tune up for now and see if that works. Hope you the best!

Posted on May 20, 2009

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tdisline_102.jpg
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