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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 01-27-2014, 06:57 AM
10yrowner 10yrowner is offline
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Location: South Dakota
 
Join Date: Apr 2013
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Mein Auto: X3 2007
Gas mileage dismal

Gentlemen,
just purchased a 2011 328I x drive. still under warranty. had it in dealer and they said they "reset" the computer for mileage or fuel consumption. unfortunately it is once again at dismal fuel mileage. I have placed the car in neutral on a long hill to see if it will "freewheel" to test engine braking. it wasn't much of a change. checked e-brake of course...run flat tires. is this normal for this model? I can't believe it is. any ideas are welcome. going back into service in a month or so for the total service. just had it in under re-call on the battery cable through fire wall. rear defrost now out.
Thanks
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  #2  
Old 01-27-2014, 07:01 AM
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Zooks527 Zooks527 is offline
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Location: Mansfield, MA
 
Join Date: Mar 2009
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Mein Auto: 2009 335i xDrive coupe
Define "dismal".

My 2009 335 xDrive gets 30 - 32 mpg at >70 mph on the highway. It gets in the low 20s in the city. I think that's pretty good.
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2009 335i xDrive coupe, Jet Black, Black Leather, Grey Poplar, Steptronic, ZPP, ZSP, ZCW, iPod/USB, HD radio, Parking Assist. Rear Fogs, Hardwire V1, ProFit G3.
ED May 12, 2009, Munich dropoff May 16, Redelivery June 22, 2009




Prior 33 years of cars: 1967 BelAir wagon / 1968 LeMans Tempest / 1970 Mustang Mach 1 / 1972 El Dorado / 1978 Corvette (kept until first Bronco) / 1981 Subaru GL wagon AWD / 1983 s10 Blazer 4x4 (big mistake) / 1985 Bronco 4x4 / 1996 Bronco 4x4 / 2004 Passat 4motion
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Old 01-27-2014, 07:09 AM
BashedBarrique BashedBarrique is offline
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Location: Carmel Indiana
 
Join Date: Jan 2013
Posts: 725
Mein Auto: 2006 325i
Quote:
Originally Posted by Zooks527 View Post
Define "dismal".

My 2009 335 xDrive gets 30 - 32 mpg at >70 mph on the highway. It gets in the low 20s in the city. I think that's pretty good.
My 2006 325i also gets 30 -32 mpg highway and around 23 -25 city. I think that's pretty good for a 3200 lb car with a 3.0 liter engine, especially since I drive it aggressively.

For comparison our 2010 Corolla with a 1.8 liter 4 cyl gets 38-40 highway and 28-30 city, and it's a wheezy little slow poke compare to the BMW.
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Old 01-27-2014, 09:29 AM
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floydarogers floydarogers is offline
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Location: Renton, WA
 
Join Date: Oct 2010
Posts: 3,576
Mein Auto: 335d, 328d, Toyota T100
Quote:
Originally Posted by 10yrowner View Post
... I have placed the car in neutral on a long hill to see if it will "freewheel" to test engine braking. it wasn't much of a change. ...
You will get better mileage leaving it in gear when going down hills. The ECU is able to completely cut fuel supply to the injectors when coasting, but if you're in neutral it has to use some to keep the engine idling.

You don't say what your mileage is, but 15-20 mpg is not unusual for a city car.
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Old 01-27-2014, 09:46 AM
BashedBarrique BashedBarrique is offline
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Location: Carmel Indiana
 
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Mein Auto: 2006 325i
I should add that my "city" figure is actually for suburban driving that includes some brief four lane highway runs of a few miles or longer. Still I think 23-25 mpg is pretty good.
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  #6  
Old 01-27-2014, 09:53 AM
ptrcd003 ptrcd003 is offline
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Location: Toronto
 
Join Date: Dec 2008
Posts: 565
Mein Auto: 328i LCI
Around 15 MPG city is normal, especially if you're X-drive. Of course, I mean stop and go traffic city driving, not suburban. What kind of mileage are you getting?
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