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W211 220cdi power steering

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by SHAMGIT, May 13, 2019.

  1. SHAMGIT

    SHAMGIT Senior Member

    Messages:
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    Joined:
    Mar 2, 2015
    Location:
    york
    Your Mercedes:
    w211 2008 220cdi
    W211 220cdi 07 reg power steering

    When cold or hot on tickover screaching and juddering on full lock.if revs are increased screaching is still there not as loud but juddering stops.fluid level is good.had new belt and tensioner fitted .it didn't help at all. Have tried steering left to right with front wheels of the ground
    What do you guys think..pump or rack

    Thanks for any help
     
  2. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

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    Joined:
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    Location:
    Tonbridge
    Your Mercedes:
    W221 S65 AMG - W204 C63 AMG + Various other MB's
    Is it blowing any fluid out of the res?
     
  3. OP
    SHAMGIT

    SHAMGIT Senior Member

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    Joined:
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    Location:
    york
    Your Mercedes:
    w211 2008 220cdi
    No ..and.fluid is at correct level.
     
  4. alexanderfoti

    alexanderfoti MBO Forum Supporter Authorised Forum Supporter

    Messages:
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    Mar 25, 2010
    Location:
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    Your Mercedes:
    W221 S65 AMG - W204 C63 AMG + Various other MB's
    I would say more likely to be pump then. Cannot say 100% though.
     
  5. Steve@Avantgarde

    Steve@Avantgarde Forum Supporter Authorised Forum Supporter

    Messages:
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    Joined:
    Dec 8, 2009
    Location:
    Bristol/Somerset
    Your Mercedes:
    C220CDI AMG Line Premium, SLR McLaren Roadster, SL55 & C32AMG
    You sure you haven't got a seized pulley on the belt system? Possibly a noisy ball joint? Usually the one way alternator pulley is the culprit.
     
    alexanderfoti likes this.
  6. OP
    SHAMGIT

    SHAMGIT Senior Member

    Messages:
    104
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    Joined:
    Mar 2, 2015
    Location:
    york
    Your Mercedes:
    w211 2008 220cdi
    Ball joints okay. One done for recent mot
    Everything spinning ok
     
  7. OP
    SHAMGIT

    SHAMGIT Senior Member

    Messages:
    104
    Likes Received:
    16
    Joined:
    Mar 2, 2015
    Location:
    york
    Your Mercedes:
    w211 2008 220cdi
    Got back from hols.
    it's now fixed.
    As you said alternator pully.

    Thanks steve
     

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