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      05-22-2012, 02:08 PM   #22
F104
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Belgium
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Drives: E92 320D M-sport
Join Date: Apr 2008
Location: belgium

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I'd be totally surprised if that engine light does not come on on a post 07 model, but it might take a 1000mls or more. It checks if MAF flow goes down when it asks for EGR, and obviously it doesn't with a blocked EGR. It won't illuminate the light at the first time it sees it, it will check for multiple occasions first. But good luck.
If I remember well, putting the system back to original does reset the light.

regards,