1998 E39 523SEI - poor starting/ misfire/ poor economy

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  1. 1998 E39 523SEI - poor starting/ misfire/ poor economy 
    #1
    Bimmer Fan
    Car Details
    amythystman's Car Details
    Model of Car:
    523ISE
    Year of Manufacture:
    1998
    Transmission Type:
    AUTOMATIC
    Car Body Type:
    SALOON

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    Feb 2010
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    My 523SEI has developed a starting problem and hesitation/ stutter when pulling away from tickover. It seems ok once the revs have risen above 2000rpm but I think its a little down on power and just generally not as responsive as it was. The fuel consumption has gone down to 17mpg average around town. It has had a recent service with new plugs etc. I presume it is electrical. Some of the other electrics have been playing up too and I don't know if it may be related. Help!
     
     

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    #2
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    mark@vorny.co.uk's Car Details
    Model of Car:
    911 C2S
    Year of Manufacture:
    2009
    Transmission Type:
    Automatic
    Car Body Type:
    Coupe
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    #3
    BMW Master
    Car Details
    Saunders's Car Details
    Model of Car:
    323Ci
    Year of Manufacture:
    1999
    Transmission Type:
    Manual
    Car Body Type:
    Coupe

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    Feb 2010
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    Cleaned the Idle Control Valve mate? Sometimes can help, but I expect it's something else. But cleaning the IDC is always useful.
     
     

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    #4
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    Ronnie's Car Details
    Model of Car:
    See above
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    Never too old, never too new
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    Always manual
    Car Body Type:
    Usually 5 doors
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    either a air leak or cam sensor fault at a guess, get the fault codes read at a BMW indy garage.
     
     

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