Had the replacement EGR fitted on Saturday. MPG back to 45MPG this morning which is normal for winter (55mpg for summer (not bad for a commute from one side of the city to the other)).
The service guy said the EGR symptoms are Coolant low and a clutch smell in the cabin. He said what I was describing could be a valve issue but the car would report a valve fault. BMW Assist engineer said the same thing when I mentioned it to him a few months ago. I will report back at the end of the week. This jerky motion symptom isn't/wan't there all the time so I need to give it a few days to be sure it's gone.
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