New intake being installed today
Avg MPG: 32.7
Avg Spd: 44.5
Drive type: 4
70/30 hwy/city. My commute is 37 miles each way with most of that being high traffic highway.
Carbon build up issue yes or no? Yes
Msg from BMW tech: "swirl flap linkage was binding and a large amount of carbon build is present"
I bought my D in June 2012 with 20k on the odo. I did nearly double that in the 6 months since.
Last edited by Robspages; 01-26-2013 at 12:57 PM.
Reason: my mileage guess was off by 3k