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  1. Can a High Pressure Fuel Pump just fall off? 
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    Hello All

    I have a 2005 Audi Avant 2.7tdi with 129K miles and a number of problems - limp mode with glow plug warning light and emissions warning light.

    I've just had the glow plugs and inlet manifolds changed over and while doing the job it was clear that the bolts form the high pressure fuel pump had come loose and the unit was moving around on it's brackets.

    In January 2015 MDM replaced a broken bracket and removed a broken stud and fixed the issue with new audi parts however in just over a year all the bolts have come loose.

    https://youtu.be/u4VOGOBj_BQ

    I have search the internet and this forum but not found any mention anywhere.

    Is this a common issue with Audi HP Fuel Pumps?
     
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  2. Re: Can a High Pressure Fuel Pump just fall off? 
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    OK after a little searching around I found "2004 - 2006 the crankshaft vibration damper was poorly produced"

    Excuse my ignorance but does the same belt for the crankshaft to the fuel pump (as well as alternator, water pump, power steering pump and air conditioning compressor)?

    It may well explain why the original problem with the HPF pump i.e. a broken bolt and cracked bracket might have happened. And why the bolts have come loose again.

    thanks
    Matt

    thanks
     
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  3. Re: Can a High Pressure Fuel Pump just fall off? 
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    That a is a different belt.
     
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  4. Re: Can a High Pressure Fuel Pump just fall off? 
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    If the threads to the bolts holes are worn then the pump could fall out especially if the bolts were over tightened when fitted.
    Dan
    2009/2010 2.0 TDIe SE
     
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  5. Re: Can a High Pressure Fuel Pump just fall off? 
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    thakns for the input, I will suggest on sorting it out they use threadlocker cheers
     
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  6. Re: Can a High Pressure Fuel Pump just fall off? 
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    Hi there,

    Sorry I know this is an old thread but I have the same problem and its driving me insane!

    I see the OP is no longer active on the forum but am wondering if anyone else has had this..? Mine has come loose twice now and its such a pity as otherwise I am loving the car! ('06 A6 2.7Tdi Saloon BPP Engine)

    If anyone has some advice I would be really grateful!
    Many thanks
    Denis
    2006 A6 2.7Tdi Quattro Saloon BPP Engine
     
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  7. Re: Can a High Pressure Fuel Pump just fall off? 
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    Quote Originally Posted by B5NUT View Post
    That a is a different belt.
    thanks for clearing that one up, shame I thought I may have hit on the answer.
     
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