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transmission control unit

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by brendan9696, Nov 2, 2012.

  1. brendan9696

    brendan9696 New Member

    Messages:
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    Joined:
    Dec 7, 2010
    Location:
    england
    Your Mercedes:
    mercedes w221
    anybody tell me what this unit actually does in layman terms.

    mercedes benz part number 0002701852 switching unit

    dont want to get confused with the tcu,
     
  2. robparker

    robparker Senior Member Authorised Forum Supporter

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    Joined:
    Apr 18, 2006
    Location:
    Taunton
    Your Mercedes:
    560SEC, 300SL, C43, + SLK200 for herself
    It just comes up as an 'intelligent servo module, switching unit'

    Im sure others will know its actual purpose
     
  3. OP
    brendan9696

    brendan9696 New Member

    Messages:
    6
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    0
    Joined:
    Dec 7, 2010
    Location:
    england
    Your Mercedes:
    mercedes w221
    switching unit

    was told it had something to do with handbrake, could not see that, but my handbrake is not working , i believe it is the winder motor ?
     
  4. Alex Crow

    Alex Crow Senior Member

    Messages:
    10,677
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    Joined:
    Jul 9, 2009
    Location:
    Super Suffolk
    Your Mercedes:
    W169, W124, w202, W203, KTM 250 EXC, VW T25 camper and a Polo in a pear tree
    Give us a clue - what is and/or isn't working/giving problems?
    What have you been told is wrong?

    It might be the servo module on the side of the 'box (with column shift cars - ie W221) that shifts gear positions.
     

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