Question about 1999 BMW 318 ti

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BMW wont start - Exhaust emission values have deteriorated light

Hi. I have a BMW 330iSE yr 2001. Recently aquired and its a superb car, Im well happy with it (or was!). Yesterday I noticed the warning light 'orange diagram of engine' came on, when starting. Today on again and wouldnt start, after a few minutes was ok. This evening same again but did not start at all, after few hours when cold it started. All electrics are ok, everything is fine, but ignition gives no power to starter motor. Looking in the manual I see the warning refers to:- " Exhaust emission values have deteriorated. Please arrange for the problem to be examined by BMW service." Can anyone tell me if this is a serious problem? I can get it diagnosed by a local technician who knows the car. Is it an expensive problem to resolve. Hope you have enough info to advise. Any comments much appreciated.

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  • Steve Sep 05, 2009

    Thanks for being so quick, I dont know enough to answer, if it helps there's no other comments on the dash!

  • Steve Sep 05, 2009

    Thanks for being so quick, I dont know enough to answer, if it helps there's no other comments on the dash!

  • yadayada
    yadayada May 11, 2010

    how superb is a car that doesn't run, HUM! does it have any OBD 2 system trouble codes in THE POWER TRAIN CONTROL MODULES memory??

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HAVE IT TESTED FOR TROUBLE CODES THAT IS THE KEY TO FIND THE PROBLEM.

Posted on Sep 05, 2009

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BMW 520 - I have had this problem solved. Intake bellows replaced by BMW specialists after diagnosis picked up the fault
Cost 139.36

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SOURCE: BMW wont start - Exhaust emission values light

it simply sounds like your oxy sensor(s) are bad, maybe egr system, and or clogged catalytic converter. Yes it will be a little pricey. Sorry.

Posted on Sep 05, 2009

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If you have emissions inspections in your area of the country, then I would have it repaired before the next inspection.

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Exhaust emission values have deteriorated


Hi..
A few clarifactions pls...
Which Car....
Does it have a carburetor or a Multi Point Fuel Injection System
Diesel or pertol or Gas.

The most basic reason for poor emission is incorrect mixture of air and fuel.
if carburetor then you will have to get the correct mixture set . Its NOT a long procedure just adjusting 2 main screws.... But lat a mechanic do it.

If Multi point fuel Injection... then the injector needs to be cleaned This is a lengthy affair. Before opening this you could use fuel additive ment for cleaning the injectors..
Alos check if the manifold/ exaust pipe is not leaking from anywhere as this reduces the pressure and the burn is not total resulting in Emission..

There are fuel addetives that help clean the engine from inside.... but for that I would need more info so as to guide which addivive could be suited.
Regards
Berry

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it simply sounds like your oxy sensor(s) are bad, maybe egr system, and or clogged catalytic converter. Yes it will be a little pricey. Sorry.

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