POLL: Did Your Car Experience an MPG Decrease Since Performing Emissions/EGR Recall

It appears to be trending at 50/50 ratio. It is curious why some are experiencing a dramatic decline and others are not.

I took my D in for service (failed adaptive light control board) and it came back re-flashed and 4 mpg lower (36 down down to 32 or less on hwy).

My wife just drove down to Eugene, OR and back (to Seattle) about 300 miles each way, pretty flat, and got 35.6 mpg. That's what we have gotten on I5 down to Portland and back, so there has been no loss of mileage on ours. For a portion of that drive, the car used only 7 gallons for around 275 miles, which is almost 40 mpg.

I'm not a real urban driver, so I might believe city mileage has gone down. I think there's too much noise in everyone's driving habits and types of trips before/after recall to make firm conclusions. Too bad we don't know what BMW has really done. Those guys are so secretive.

My drive is rather consistent and been so for upwards of 8 years. On my logs for any of my vehicles it is really easy to tell when something out of the normal happened or if the vehicle was messing up. I just don't drive it enough to really have enough data post recall to say one way or the other with much confidence.

No drop. Just finished running first tank of fuel post recall.

Had the car serviced for the 4th time and its been 6 weeks since my last post and 3 tankfuls later (the car sat while i was on vacation for 10 days) and my mpg's are still under. Now I am at23-24 combined city/hwy. my comute 75% hwy. By comparrison to other vehicles, its still acceptable. Comparing to the orriginal MPGs i was getting, it stinks. Comparing to some of you on this tread, mine's a pig.

I voted yes, but time and several subsequent tanks of fuel have proven me wrong. I experienced a dip in mileage, but it appears to be related to the fuel used (Shell). Swithced to Chevron and it came back up. Averaging 32.72 mpg on the last 17 tanks of fuel.

Updated observation on my D which is now out of warranty and will be due for the first out-of-warranty service in 2,000 miles (3,000+ KM).

Whilst my FE is not affected by the emission recall, my DEF consumption has increased as today I got the low DEF warning even though the oil change is not due for another 2,000 miles.

I went to a Canadian Tire store and picked up a 5 US Gal bottle of DEF for CAD$19.99 and will be feeding my D tomorrow morning.

I will call my Dealer for an oil change appointment. I shall ask how much it'll cost without filling the DEF since I can do that myself.

Update: it appears my car's mileage has returned to near previous levels - perhaps 1mpg lower. Needless to say this is a bit of a relief.

Its been a good 2-3mpg lower since the 2nd recall in my case. I also have an '12 X5d and it gets its advertised mpg and probably had the updated changes including no dipstick since I have in the 335d.

I dont know mines acting funny first I saw no decrease now Ive since 1 mpg loss, WTF!! I really cant get true estimates I do over 90% of city driving and DAMN IT I race the damn car, love the TORQUE!!