w210 heater problem e320cdi

Discussion in 'Electronics' started by eima007, Sep 20, 2011.

  1. eima007

    eima007 New Member

    Messages:
    4
    Joined:
    Sep 19, 2011
    Car:
    mercedes e320cdi w210
    i have mercedes e320cdi w210 and have problems with a heater. the heater wasnt working before i bought this car and it started to work today.
    the problem is that i cant turn it off. the only way to turn it off is disconnect a battery neg. terminal. if i try to do something on heater control panel it doesnt really do any changes even blower setting is set to 0(it still blows the air). so i got flattened battery very quickly.
    tried to remone fuse 4 and 7 under the hood.that didnt help either.
    how could i shut the blower off.
    any suggestions what could be wrong? thanks.
     
  2. PJH123

    PJH123 New Member

    Messages:
    23
    Joined:
    Dec 17, 2010
    Car:
    E220 (W212) Estate
    I had this problem with mine a while ago. If my memory serves me right the resistor on the blower has gone & needs replacing. You can get a recon one for around £30/£35.
    The heater blower is located in the passengar footwell under the glove box & is quite easy to do. Hope I am correct and this helps
     
  3. OP
    OP
    eima007

    eima007 New Member

    Messages:
    4
    Joined:
    Sep 19, 2011
    Car:
    mercedes e320cdi w210
    thanks for info PJH123.
    is possible to check that resistor with multimeter if its faulty or not?
     
  4. OP
    OP
    eima007

    eima007 New Member

    Messages:
    4
    Joined:
    Sep 19, 2011
    Car:
    mercedes e320cdi w210
    have removed a resistor today and the blower stopped workin. does it mean that resistor is faulty?
     
  5. petethepilot69

    petethepilot69 New Member

    Messages:
    7
    Joined:
    Oct 20, 2013
    Car:
    E320Cdi estate, Lexus is200 Sport, Honda VFR750
    Thanks fo rthis posting....
    I have the same issue with my 320CDi and will be trying the Resistor/regulator fix thanks....
     

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