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Discussion Starter #1
Hi all,
had my 640d for two and a half years with no issues. It’s a 2013 with 80000 miles. Just lately first start up in the morning when you drive off there is no power at all. Stop it turn off and on and all is back to normal. No lights on the dash and no fault codes being thrown up at present. Did it this morning and again switched ignition on and off and then did 250 miles in it with out missing a beat. Car is very well serviced and maintained. Any ideas?
cheers
Jim
 

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Discussion Starter #3
My mate has a garage and used there diagnostic tool. Interestingly their newest bit of kit only came up with a shutter fault which it’s always had but I also used there old diagnostic tool as the new one needed charging and it did identify the pressure regulator valve as a fault Saying it’s going to ground. I checked the wiring and all looked fine and plugged it back in before I used the new diagnostic reader which then did not bring it up. Have ordered a new regulator and looks reasonably easy to fit and Assume the system will self bleed etc as the injection rail has to come off to fit it. my next port of call will be to go through the vac pipes and pressure converters. Any help appreciated.
cheers
Jim
 

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Discussion Starter #6
The dpf is fine and no issues with it and it regens with no issues. Just fitted a new pressure regulator and no change But to be fair I expected that. Next will start changing the vac pipes and pressure converters and the fuel filter.
cheers
Jim
 

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Discussion Starter #8
Unfortunately our local Indy does not fill me with confidence. My mates own a garage and I was a mechanic by trade so fairly certain we will get to the bottom of it.
cheers
Jim
 

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yeh,i ,meant a proper bmw specialist..pleased i can call on one for the intricate jobs,otherwise i just take to my local generic indy if i cannot do the job myself
 
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