what can the knocking be?

Discussion in 'Parts, Maintenance & Servicing' started by mrcgibb, Sep 3, 2011.

  1. mrcgibb

    mrcgibb Hardcore MB Enthusiast

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    i have had my 1999 clk into the garage had 2 new front springs fitted and anti roll bar bushed were shot , but the drivers side still has a knocking sound over rough roads not a heavy knock more a tat tat ta sound any ideas what i should look at once a jack car up , its the drivers side as well ?
     
  2. moonloops

    moonloops MB Club Veteran

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    Suspension control arm bushes ?

    Does it knock if you dab the brakes ?
     
  3. grober

    grober MB Club Veteran

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    Upper ball joints?
     
  4. renault12ts

    renault12ts MB Club Veteran

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    Shock absorber lower mounts.
     
  5. Mblinko

    Mblinko Hardcore MB Enthusiast

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    I had a creaking from my front nearside. Replacing lower ball joints fixed it.
     
  6. OP
    OP
    mrcgibb

    mrcgibb Hardcore MB Enthusiast

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    Hi thanks for replies , no it doesnt knock when I apply brakes just over bumps :)
     
  7. OP
    OP
    mrcgibb

    mrcgibb Hardcore MB Enthusiast

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    I suppose it will be quite easy to see once I get the wheel off?
     
  8. grober

    grober MB Club Veteran

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    THAT'S ALWAYS A GOOD START.;) Seriously get a hold of "hefty" friend to assist. Get them to rock the car on its suspension while you try to locate the source of the noise. It should be standing on ALL 4 WHEELS FOR THIS. If you can------ safely get a hold of the various suspension/steering elements or get a visual on them while you do this--- be very careful not to place your hand where it could be crushed or nipped by the movement of the suspension or use a length of wood as a sounding bar to transmit noise to your ear. You probably need to be lying on the ground close to the car- access may be easier with the steering on full lock BRAKES ON!!!
     
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