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CLK 270 Cdi Glow plug light on for a long while

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by Baldmechanic, Dec 14, 2017.

  1. Baldmechanic

    Baldmechanic Senior Member

    Messages:
    58
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    Joined:
    Jan 22, 2016
    Location:
    Wales
    Your Mercedes:
    CLK 270, Landcruiser 4.5, VW T4 2.5.
    Hi all
    Ok Vehicle been running great after last issues (fuel pump/ etc) i managed to change all glow plugs with no real problems, however now the weather temperature here is pretty damn cold the glow plug light stays on until the temperature picks up to 60-80 degrees, is this normal on these?, i am under the impression the glow plugs do not play a big part in these engines, but only for emissions, am i correct?
     
  2. mersum1es

    mersum1es Senior Member

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    Joined:
    Sep 25, 2010
    Location:
    Finland
    Your Mercedes:
    W210/-01/270CDI, EX:W211/-04/320CDI
    plugs or module or both gone. Should be no light after engine starts-
     
    Baldmechanic likes this.
  3. KennyN

    KennyN Senior Member

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    Joined:
    Dec 18, 2013
    Location:
    Paisley
    Your Mercedes:
    CLS G-E , ZX12r / ZRX11 / ZRX Monoshock
    On mine , CLS, the light came back on 30s after the car was started when one of plugs was faulty. When the module gave up the ghost the car took longer to start from cold but there was no indication displayed on the dash.

    Plugs can be checked in situ with a multimeter , the module was a sealed unit therefore un-checkable on the W219.

    Kenny
     
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  4. mersum1es

    mersum1es Senior Member

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    1,543
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    Joined:
    Sep 25, 2010
    Location:
    Finland
    Your Mercedes:
    W210/-01/270CDI, EX:W211/-04/320CDI
    Baldmechanic and om613 like this.
  5. OP
    Baldmechanic

    Baldmechanic Senior Member

    Messages:
    58
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    9
    Joined:
    Jan 22, 2016
    Location:
    Wales
    Your Mercedes:
    CLK 270, Landcruiser 4.5, VW T4 2.5.
    all new plugs fitted (genuine bosch)
     
  6. OP
    Baldmechanic

    Baldmechanic Senior Member

    Messages:
    58
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    9
    Joined:
    Jan 22, 2016
    Location:
    Wales
    Your Mercedes:
    CLK 270, Landcruiser 4.5, VW T4 2.5.
    well removed the Glow plug relay and followed the instructions, carefully removed the silicone seal from around the outside, then separated the top cover from the bottom, found one link burnt out, so soldered a new piece in and re sealed unit and hey presto all working again, Thank you all again for your advice :)
     
    Wighty likes this.
  7. John Laidlaw

    John Laidlaw Senior Member

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    Nov 15, 2013
    Location:
    Wirral
    Your Mercedes:
    W212 E63 ///AMG V8 Biturbo Volvo XC90 2018
    Nice one, nice when things work out
     
    Baldmechanic likes this.

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