2002 E46 330ci Exhaust emission values warning Light

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  1. 2002 E46 330ci Exhaust emission values warning Light 
    #1
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    brettman0's Car Details
    Model of Car:
    330ci
    Year of Manufacture:
    2002
    Transmission Type:
    automatic
    Car Body Type:
    coupe

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    hi there had the emission value light come on the other day then went off again!!!!driving home today and came back on any ideas what is causing this cheers????

    2002 330ci msport
     
     

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    #2
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    tyson01's Car Details
    Model of Car:
    330ci blue/330ci sport black
    Year of Manufacture:
    2000/2003
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    1 x manual..1x auto
    Car Body Type:
    both coupe..
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    Quote Originally Posted by brettman0 View Post
    hi there had the emission value light come on the other day then went off again!!!!driving home today and came back on any ideas what is causing this cheers????

    2002 330ci msport
    could be your lambda sensor,,sits in your exhaust and monitors amount of oxygen passing through the exhaust system,it screw into the exhaust pipe,so removing and refitting is a matter of unplugging the sensor and removing old one and screwing new one back in same threaded hole,they can sometime be tricky to get to as where they are possitioned,done two on my audi quatrro once and had to use whats called a crows feet tool to get old one out .. ,i believe there is two on the e46 one before the catalyctic converter one after,after years of use they tend to get carbon build up on the tip,stopping them from working properly,these are commonly available on ebay...bmw dealership will be expensive..
    steve
    YOU"LL NEVER WALK ALONE.
     
     

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    #3
    Bimmer Fan
    Car Details
    brettman0's Car Details
    Model of Car:
    330ci
    Year of Manufacture:
    2002
    Transmission Type:
    automatic
    Car Body Type:
    coupe

    Join Date
    Dec 2010
    Location
    Chepstow
    Posts
    7
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    thankyou for the reply
     
     

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