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Thread: audi a6 2.0 tdi making horrific clattering sound when starting

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  1. audi a6 2.0 tdi making horrific clattering sound when starting 
    #1
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    can anyone help?
    my a6 2.0 tdi auto 2006 BRE engine make a horrific sound on start up,
    it only does it sometimes and never when cold,
    it is like a clattering coming from down inside engine bay,
    i started it warm today and the noise must have lasted about 2/3 seconds,
    it is very worrying,
    had the car 2 years and has been a nightmare,
    dpf regenerated in garage 3 times,
    new front pipe on exhaust,
    new egr valve,
    some sort of boost meter,
    oil pump failure,
    turbo failure as a result of oil pump,
    new motor flap at inlet manifold,
    broken front spring,
    threaded sump plug,
    just been told that my fan belt isnt running true, the crank pulley is sitting back causing belt to run at angle,
    also have the 1800 rpm judder when driving and in neutral,i have beentold this is the injector loom inside the engine needs replaced,
    my main concern is this noise on start up,

    any advice appreciated
    deano
     
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  2. Re: audi a6 2.0 tdi making horrific clattering sound when starting 
    #2
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    Have you had a fault code scan?
     
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  3. Re: audi a6 2.0 tdi making horrific clattering sound when starting 
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    i had a diagnostic done a few weeks ago and fault was faulty motor flap at inlet manifold,
    thats been rectified,
    the noise has been happening for months now though its getting worse now,
    i have been told it may be clutch related,
    really worrying ,, the car has cost me a fortune,
    thanks for reply
     
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  4. Re: audi a6 2.0 tdi making horrific clattering sound when starting 
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    Clattering is usually a DMF and clutch needs replacing.

    Bite point the same etc?
     
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  5. Re: audi a6 2.0 tdi making horrific clattering sound when starting 
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    its an auto multitronic
     
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  6. Re: audi a6 2.0 tdi making horrific clattering sound when starting 
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    Still has a DMF.

    Have you been getting the gearbox oil changed every 40k?
     
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  7. Re: audi a6 2.0 tdi making horrific clattering sound when starting 
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    no i havnt,
    ive only had car 2 years,its got 90000 on clock, i will need to check history,
    is dmf a big job to do?
    ta
     
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  8. Re: audi a6 2.0 tdi making horrific clattering sound when starting 
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    It's gearbox out job I'm afraid.

    AforAudi get good reviews in the Glasgow area if you don't wanna stick with Audi.
     
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  9. Re: audi a6 2.0 tdi making horrific clattering sound when starting 
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    i know of them though never used them,
    i am supposed to be driving to france in july with family in the car,
    can the dmf completely fail and cause break down?
    or should i just try to ignore it and live with it?
    ta
     
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  10. Re: audi a6 2.0 tdi making horrific clattering sound when starting 
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    Two trains of thought on this. Mine started juddering at biting point 45, 000 miles ago & hasn't deteriorated since. HOWEVER, I've never had the clattering on start up, so mine might be more clutch related than dmf related & yours sounds more worn than mine. The second consideration is that in the words of A8 Tech (who believe me, knows what he's talking about!) the danger of driving with a damaged dmf is that the bolts can smash through the gearbox & take that out too - which I guess is an expense you don't need & you certainly don't want to ruin your holiday. If I was you, I'd get it done asap.
    The Only Way Is A6!
    A6 C7 Facelift Avant | Daytona Grey | S-Line Black Edition | 2016 | 3.0BiTDI 320ps | Tech Pack | Lighting Pack | Parking Pack | All LED Headlights | Sports suspension Heated Steering Wheel | Kessel a Run in under 10 parsecs
     
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