W220 knocking sound on slightly uneven terrain

Discussion in 'Wheels, Tyres, Brakes & Suspension' started by kolobos, Feb 19, 2013.

  1. kolobos

    kolobos Hardcore MB Enthusiast

    Messages:
    129
    Joined:
    Feb 17, 2013
    Location:
    Scunthorpe
    Car:
    C220 CDI Avantgarde SE 54 Reg Diesel
    My S320 has just had an MOT and passed ok except I can hear this knocking/ tapping type noise when travelling on slightly bumpy surfaces. I don't know much about the car yet as I've only just purchased it. I'm thinking it could be a fractured shock absorber as had a similar issue with my C200.

    The noise is more drivers side.

    Thanks,
    Steve...
     
  2. Auto-mobile

    Auto-mobile Hardcore MB Enthusiast

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    Oct 1, 2011
    Location:
    Birmingham
    Car:
    2x c43 Amg clio 172 turbo 314bhp
    Personally I'd advise a lower arm as the ball joint on the anti roll bar are common for such noises, as are the bottom ball joint but having had a mot and it passed the bottom ball joint should be fine.
     
  3. Benzowner

    Benzowner Hardcore MB Enthusiast

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    Jun 21, 2004
    Location:
    Bristol
    Car:
    Qashqai Acenta Premium 1.6Diesel
    I owned a W220 and had knocking noises, the culprit was the front anti roll bar bushes.
     
  4. OP
    OP
    kolobos

    kolobos Hardcore MB Enthusiast

    Messages:
    129
    Joined:
    Feb 17, 2013
    Location:
    Scunthorpe
    Car:
    C220 CDI Avantgarde SE 54 Reg Diesel
    Sorted it thank you, it was a suspension link arm nut that was not tight enough, a few turns of a spanner and all is OK, obviously as I have just purchased this car I do not know what has happened previously but all is becoming clear as I find other niggly bits and pieces, (basically it was owned by someone who should never have owned a Mercedes) I'm pleased I took it off his hands or I will be when I have sorted a couple of other issues like the Sat Nav thinking it is in Germany!

    Kind Regards,
    Steve...
     

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