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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > 320d mpg drop



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      11-27-2014, 07:12 AM   #1
chrissyw
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Drives: E90 320d M Sport
Join Date: Mar 2014
Location: UK

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320d mpg drop

I recently changed the thermostats on my 320d as the running temp was not getting above 72 degrees.

The MPG rose to about 45mpg (combined).

I then decided to clean the EGR valve, it was absolutely caked with carbon. I put it back on the car and the car felt horrendous. Really sluggish. I've got a feeling it is seized.

I've disabled the EGR now and the car drives fine but I'm struggling to get the MPG above 40. Is this normal for a disabled EGR?
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