320cdi V6 glow plug controller problem

Discussion in 'Engine' started by Dennis320, Nov 20, 2016.

  1. Dennis320

    Dennis320 New Member

    Messages:
    3
    Joined:
    Nov 20, 2016
    Car:
    W211 V6 cdi
    Hi,

    My problem is on a W211 320cdi V6 (2008) for which I don't find a solution in the existing treats.

    In the morning, the car will not start immediately, but when you preheat 3 or 4 times before starting, it starts without any problem.

    Because the glow plug controller is a common problem on this model, I have replaced it first, however, the problem remains.

    I have measured the glow plugs, they all are 1.2 Ohm.
    There's no error on the dashboard, the glow plug light acts normal.
    The voltage on the glow plugs when preheating is 1.6 Volt. I think this should be around 5V??
    Replacing the controller does not change anything.

    Is there any reason why the glow plug controller would only give 1.6 Volt??

    Thanks!!
    Dennis
     
  2. streethawk

    streethawk MB Enthusiast

    Messages:
    1,020
    Joined:
    Jun 27, 2011
    Location:
    leicester
    Car:
    E320cdi sport
    Mine were .01ohm iirc .
     
  3. paul73mt

    paul73mt Active Member

    Messages:
    675
    Joined:
    Jul 18, 2012
    Location:
    Essex
    Car:
    2010 C350 CDI Sport sold , 2015 E250 CDI AMG Line Sold
    mine were .6Ohm each
     
  4. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

    Messages:
    18,892
    Joined:
    Feb 8, 2007
    Location:
    Horndean, Portsmouth, Hampshire, Southsea
    Car:
    C43 AMG with a 55 engine and supercharger, E55 AMG, S500, etc
    Did you use a genuine (modified) glow plug control unit?
     
  5. OP
    OP
    Dennis320

    Dennis320 New Member

    Messages:
    3
    Joined:
    Nov 20, 2016
    Car:
    W211 V6 cdi
    Hi, I ordered one from Beru itself, the GSE114. The one I had installed was Mercedes, 642 900 58 01.
    Both only give 1.6 Volt to all plugs.

    When I keep on preheating for about 10 seconds (while light is already out) it starts perfectly normal!
    Temperature is about 12°C in the morning.
     
  6. vijilants

    vijilants MB Enthusiast

    Messages:
    2,225
    Joined:
    Jan 23, 2007
    Location:
    London
    Car:
    C320CDI Sport W204
    The back of the modified controller unit is white.
     
  7. OP
    OP
    Dennis320

    Dennis320 New Member

    Messages:
    3
    Joined:
    Nov 20, 2016
    Car:
    W211 V6 cdi
    Indeed, both are white.
     

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