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clk 270 tdi automatic

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by magsmac5, Dec 31, 2012.

  1. magsmac5

    magsmac5 New Registration

    Messages:
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    Joined:
    Dec 31, 2012
    Location:
    glasgow uk
    Your Mercedes:
    clk 270 cdi 2005
    I'm having a problem with hesitant gear changing.
    The gearbox seems confused about which gear to go into. Can anyone help?
     
  2. WG M-B

    WG M-B Senior Member Authorised Forum Supporter

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    Joined:
    Dec 5, 2010
    Location:
    North west london
    Your Mercedes:
    C63 Wagon in black
    You need to start with the basics. Is the oil level ok? Has the fluid and filter ever been changed? Is the engine giving out the correct power?
    All these can affect gear changing
     
  3. mersum1es

    mersum1es Senior Member

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    Joined:
    Sep 25, 2010
    Location:
    Finland
    Your Mercedes:
    W212/-09/350CDI, W219/-07/320CDI, EX:W220/-01/320CDI, EX:W211/-04/320CDI, EX:W210/-01/270CDI
    Could be many reasons. First you must ensure that box has enough/not too much oil, oil has been changed under 100 000km ago. If these are ok, then most probably the transmission control unit box has suffered oil contamination (oil climbs up inside the cable), and need to be cleaned ans plug changed. These can be check without diagnostic program, if there is still problems after this, fault codes will tell if there is something wrong inside the tranny box.
     

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