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      01-29-2013, 02:42 PM   #11
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Drives: 335d M sport 2007
Join Date: Feb 2012
Location: Manchester, UK

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Originally Posted by NotNormal View Post
You need to replace the thermostat on the EGR cooler first, then run the car and see, if that doesn't work you need to replace the main thermostat behind the main core of the EGR cooler

I would say EGR thermostat is working (opens around 70 degrees) - sounds like main stat has gone weak as that should stay closed until 90 degrees. I have read a lot of posts and thats how I understand it....I think