2004 E46 320d Tourer cold start, Glow plug fault codes

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  1. 2004 E46 320d Tourer cold start, Glow plug fault codes 
    #1
    Bimmer Fan
    Car Details
    john1966's Car Details
    Model of Car:
    320d
    Year of Manufacture:
    2004
    Transmission Type:
    manual
    Car Body Type:
    touring

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    Feb 2010
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    Hi,

    can anyone help. during the resent cold spell my 2004 E46 320d as been rough idling on first start for a few seconds and emitting the excessive white smoke, she always starts. Previous experience tells me its a pre heat problem.
    I,ve had the scanner on and get all 4 glow plug error codes

    4212,4222,4232,4242

    Glow plug cylinder 1,2,3 & 4
    open circuit, fault would not
    cause the fault lamp (mil) to
    light up, currently not present

    Scanner used is MacScan running Omiscan Version v14.1.0

    Codes will clear but as soon as you fire her up again they come back

    Since i changed the glow plugs last year when i deflaped her,(installed Bosch Duratherm, told they were better than Beru which i removed) I think all 4 plugs going down within 10 months is very unlikly.

    would it be the preheat control unit,or is there a main fuse which powers that. or somthing else? am i right in thinking you access the preheat unit from under the car passanger side.

    thanks in advance
     
     

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    #2
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    mark@vorny.co.uk's Car Details
    Model of Car:
    911 C2S
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    2009
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    Can anybody assist the OP ?
    2013, Porsche 911 Carrera 4S, PDK, Sports Exhaust, Chrono, etc, etc

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    #3
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    iterzic's Car Details
    Model of Car:
    320d
    Year of Manufacture:
    2004
    Transmission Type:
    Manual
    Car Body Type:
    Touring

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    Did you resolve problem? I have all 4 glow plugs error.
     
     

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  6. Glow plugs 
    #4
    Bimmer Fan
    Car Details
    harrympotter's Car Details
    Model of Car:
    320D
    Year of Manufacture:
    2005
    Transmission Type:
    Manual
    Car Body Type:
    Touring

    Join Date
    Oct 2011
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    Lincoln
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    Hi i've the same 4 x fault codes on INPA, was just going to replace all 4 plugs before winter, but its a massive job, if a controller is duff or a fuse has gone. Any one any ideas on a 4 fault code fail.
     
     

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    #5
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    matthew_henson's Car Details
    Model of Car:
    E61 525d Touring
    Year of Manufacture:
    2005
    Transmission Type:
    Manual
    Car Body Type:
    Touring/Estate
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    Quote Originally Posted by harrympotter View Post
    Any one any ideas on a 4 fault code fail.
    Almost certainly the controller, on the 136bhp the controller is in the ECU box on the right hand corner of the engine bay but on the 150bhp M47N engine it is bolted to the side of the engine and a horrible job to change. There is an argument that says take the inlet manifold off anyway and test each plug and if the controller is dead, calll Hereford BMW and get one ordered for next day delivery as changing the controller is a lot easier with the manifold off
     
     


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