C5 clackety clack
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Thread: C5 clackety clack

  1. #1
    Fellow Frogger! Ceenine's Avatar
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    Default C5 clackety clack

    Folks, when I switch off the ignition or open doors I hear this loud clackety clack coming from the centre of the inlet manifold area that continues on for about 7 seconds. It seemed to be a feature of these activities after I allowed the fuel to get low after a long trip but that may not be a factor but merely a coincidence.

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    The motor is an '07 2.2L HDI (C5). An otherwise magnificence vehicle.

    Any clues please
    2014 C5 2.2 HDI Limited Edition Sedan
    2007 C5 2.2 HDI Hatchback
    2007 C4 1.6 HDI EGS Sedan
    Peugeot Mi16 Series 2

  2. #2
    Fellow Frogger
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    Twin turbo? There's a butterfly valve down the front of the manifold. It could be to do with that. Eventually, fuel residue can make it's way past the spindle seal and into the electrical side of the unit and that's something to check for, particularly if you experience random stalls. Could be other causes of course, like something related to the vacuum system, heat expansion/cooling??? Try to pinpoint the location of the noise.

  3. #3
    Fellow Frogger! Ceenine's Avatar
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    David
    Yes it is TT. I will try to pinpoint and report back
    Don
    2014 C5 2.2 HDI Limited Edition Sedan
    2007 C5 2.2 HDI Hatchback
    2007 C4 1.6 HDI EGS Sedan
    Peugeot Mi16 Series 2

  4. #4
    Fellow Frogger! Ceenine's Avatar
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    The racket occurs at the turning on and the turning off of the ignition. It emanates from the right hand side of the motor, around about the far right manifold intake or from the contraption just to its right.It is a bit hard to tell. The clackety clack goes on for about 6 or 7 seconds - wierd. Anyone lse experienced it?
    2014 C5 2.2 HDI Limited Edition Sedan
    2007 C5 2.2 HDI Hatchback
    2007 C4 1.6 HDI EGS Sedan
    Peugeot Mi16 Series 2

  5. #5
    sans witticism SLC206's Avatar
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    Could it be a exhaust canister solenoid on the blink? They've been known to make such silly noises.

    No idea if HDi cars have them, mind you.
    Regards,

    Simon

    2018 308 GTi 2011 DS3 DSport
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  6. #6
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    Try putting a long screwdriver to your ear ,placing it on different parts while someone turns the key on and off ,you may also be able to feel what is making the noise by holding your fingers on different parts the same way,we had a v6 for a short time and i recall it making ,a noise like that ,pugs
    Whippet likes this.

  7. #7
    Fellow Frogger! Ceenine's Avatar
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    'twas the air doser (air doseur) or in proper English, throttle body. Made by Pierburg, a German company. Obtained one from BestParts in UK which is a German on-line "shop".

    The white plastic gears inside, manufactured by a German company had become stripped as they work against a fairly strong spring on the butterfly. They are not up to the job as it appears to be a fairly common fault. It is a pity that a kit is not available.
    FedGrapes likes this.
    2014 C5 2.2 HDI Limited Edition Sedan
    2007 C5 2.2 HDI Hatchback
    2007 C4 1.6 HDI EGS Sedan
    Peugeot Mi16 Series 2

  8. #8
    Fellow Frogger!
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    Those bloody Chermans.. they don't do anything rite and proper any more !!! I have been researching ML Benz 4WDs .. keep well away. The 7 speed autos have issues with oil wicking into the computer ( like a C% diesel ) and balance shaft ( engine ) chain wheels wearing teeth off so ALL the spinny bumpy things go out of phase when the chain goes slack. They were part of a class action in the USA over that one. .. and an engine out $7000 repair. PS Don't mention the AL$ ( Siemens revenge !!! ) or who won the war.
    tasgill likes this.

  9. #9
    Fellow Frogger!
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    MMmm ML Benz, now they would be made where - USA, so perhaps it is just revenge from the seppos for the Daimler Chrysler failure
    Now we won't mention Jeeps will we??? Back on topic sort of, the AL4 is not all bad, seems some have no end of trouble and others have a good run. Suspect sometimes they were used with engines beyond their capability.
    Peter
    1950 11BL
    1970 AZUA "La Poste" van
    1986 2CV Dolly (red and white)
    2004 C5 HDi silver 2.0L

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