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W164 Road Noise

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by Jason Coleman, Feb 9, 2019.

  1. Jason Coleman

    Jason Coleman New Member

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    Your Mercedes:
    ML320CDI
    My 2005 320CDI has developed what sounds like road noise at straight ahead or left bends but goes away on right curves/corners.
    I've rotated tyres and had wheel alignment but no change.
    What should I check next?
     
  2. Rotorhead500

    Rotorhead500 Senior Member

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    Location:
    Very South Devon
    Your Mercedes:
    Used to have a C63...
    Jack up front right, and give it a good push & pull - if there's any play, maybe a bearing on the way out.
     
    Last edited: Feb 10, 2019
  3. LostKiwi

    LostKiwi Senior Member

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    Location:
    Midlands / Charente-Maritime
    Your Mercedes:
    '93 500SL-32, '01 W210 Estate E240, 02 R230 SL500 (Malcolm Spec), 04 Smart Roadster Coupe
    Sounds like wheel bearing wear.
     
  4. OP
    Jason Coleman

    Jason Coleman New Member

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    Your Mercedes:
    ML320CDI
    Thanks...have checked the wheel bearings and no play or noise from them. Still looking
     
  5. colin ling

    colin ling Senior Member

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    Joined:
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    Location:
    colchester
    Your Mercedes:
    ML 280 CDI 2008
    I had a rumble when going straight ahead. You could not hear anything when trying to spin it jacked up and no play at all. It was NSF wheel bearing
     
    Rotorhead500 likes this.
  6. Rotorhead500

    Rotorhead500 Senior Member

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    Location:
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    Your Mercedes:
    Used to have a C63...
    Indeed. Any play means it's good & proper knackered.

    Good test is full lock in a carpark at walking pace, if you hear & feel a rumble, defo the bearing... but as you can hear it out on pen road anyway, sounds like a good time to get it checked out and replaced.
     
  7. V6Matty

    V6Matty Senior Member

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    Location:
    Newark, Notts
    Your Mercedes:
    S212/10/E350(His) W169/2005/A180 (Hers)
    How worn are the tyres, I found in the 211 certain tyres would rumble once down below 5mm
     
  8. Wighty

    Wighty Senior Member

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    Location:
    Sunny Essex
    Your Mercedes:
    W211/E320cdi/2009 and CLK200k 2009
    As above , what about worn tyres and or tyre pressures (try 32 all round see if that helps )
     
  9. John Laidlaw

    John Laidlaw Senior Member

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    Your Mercedes:
    UnMercs BMW i8 Volvo XC90
    Yup tyres would be my first check, what’s on it and how worn are they ?
     
  10. kid-jensen

    kid-jensen Senior Member

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    Location:
    Epsom Downs, Surrey
    Your Mercedes:
    Ml320CDI 2007
    Another vote for the Right front wheel bearing.

    In right turns, you're giving it an easier life so the noise will reduce.

    Wheel bearing wear is notoriously difficult to identify with the wheels off the ground. you could always ignore it till it gets so loud that you can't miss it!
     
  11. OP
    Jason Coleman

    Jason Coleman New Member

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    Your Mercedes:
    ML320CDI
    Thanks guys, tyres are at about 30% so will replace anyway.
     
  12. umblecumbuz

    umblecumbuz Senior Member

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    Location:
    Wales and Gozo
    Your Mercedes:
    S204 and CLC 204 cdi, other non-Merc machines
    So you've got your way forward.

    As you intend to replace the tyres, do that first.
    If the noise goes, you've got your solution.
    If it remains, swap out the front wheel bearings (both - no point messing about with just one).
     
    Wighty likes this.

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