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F10 / F11 (2011 - Current)
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  #1  
Old 04-12-2016, 08:45 AM
Mugiwara Mugiwara is offline
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Mein Auto: 535i xDrive 2012 High Ex.
535i xDrive VERY HIGH FUEL CONSUMPTION

Dear Bimmerfesters,

I bought my 535iX (build year 10/2011) about 3 or 4 months ago with 47k kilometers on the odo (from a BMW dealer) and have been driving around for about 6-7k kilometers. What I've noticed is that I have a very abnormal gas/mileage. My car's boardcomputer tells me its using about 14-15l for every 100km's with RON98 fuel, that equals about 16mpg(it's true, I used the odo to see how many km's I could make on a tank before refill and it was very accurate, whereas I drive 50% city and 50% highway).

According to BMW it's average should be around 9 liters on 100km's but I don't come ANYWHERE NEAR that. I have resetted the boardcomputer a couple of times between the times I had weeks off of school and when I had to go back to school and it had only 1/1,5l difference on 100km's. To be honest, I drive pretty normal and don't have a lead foot. I do pull up at a pretty decent pace but that's it, the rest of the time I'm just cruising at a certain speed (120-130km/h).

I had informed my dealer about this on a very early stage, the first 2 weeks (I have a 2 year bmw premium selection warranty for this car) and he said I had to work the engine in after it was in the showroom for about a year.

Do you guys have any idea if this is normal? If I knew the consumption would be this much I would've gone for a 530 or 528 instead.

By the way, I live in the Netherlands if that's of concern and the bimmer was an original dutch sold car.

I would appreciate any input from you guys.

With kind regards,

Mugiwara

Last edited by Mugiwara; 04-12-2016 at 09:22 AM.
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  #2  
Old 04-12-2016, 09:05 AM
Trian Trian is offline
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Mein Auto: 2012 535i M-Sport
I do about 80% city, 20% highway, have a heavy foot in the city (and nearly always in sports mode) and do 80-85 mph on the hwy. I consistently average around 20.4 mpg
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  #3  
Old 04-12-2016, 10:27 AM
Mugiwara Mugiwara is offline
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Location: Netherlands
 
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Quote:
Originally Posted by Trian View Post
I do about 80% city, 20% highway, have a heavy foot in the city (and nearly always in sports mode) and do 80-85 mph on the hwy. I consistently average around 20.4 mpg
That's a pretty good consumption if you have a lead foot and wow 80% city...
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  #4  
Old 04-12-2016, 10:59 AM
Trian Trian is offline
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I don't know if the gas octane % would make a difference in mpg between your car and mine. I use Shell 93 always.

Or, all the roads are flat here so there is no pushing the pedal to get up the hill.

Or, your tires are underinflated

Or ????
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  #5  
Old 04-12-2016, 11:06 AM
Mugiwara Mugiwara is offline
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I use the highest octane fuel available 102 race fuel from the ARAL in Germany. I have fallen back to 98 which is the best shell can offer here. The Netherlands is famous for its flat surface so we don't really have hills here. Also, my runflats are at the optimum inflation level. Do you have any other clues?

Thanks,

Mugiwara
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  #6  
Old 04-12-2016, 11:24 AM
The X Men The X Men is offline
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Quote:
Originally Posted by Mugiwara View Post
I use the highest octane fuel available 102 race fuel from the ARAL in Germany. I have fallen back to 98 which is the best shell can offer here. The Netherlands is famous for its flat surface so we don't really have hills here. Also, my runflats are at the optimum inflation level. Do you have any other clues?

Thanks,

Mugiwara
Whats your average speed and do you take a lot of short trips. You said you like to accelerate fast from stop, it takes a lot of gas to get a 4500 pound car moving fast. Even with a 528i, your gas mileage would not be much better.

Last edited by The X Men; 04-12-2016 at 11:26 AM.
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  #7  
Old 04-12-2016, 11:29 AM
Mugiwara Mugiwara is offline
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My average speed is about 70kmph. My trips generally consist lf 35km+35km (back and forth to school of which about 60km is highway and 10 city) and about 5-6kms for daily groceries etc.
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  #8  
Old 04-12-2016, 11:57 AM
The X Men The X Men is offline
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Quote:
Originally Posted by Mugiwara View Post
My average speed is about 70kmph. My trips generally consist lf 35km+35km (back and forth to school of which about 60km is highway and 10 city) and about 5-6kms for daily groceries etc.
Try keeping your rpm below 2K when accelerating for better gas mileage.
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  #9  
Old 04-12-2016, 12:21 PM
Mugiwara Mugiwara is offline
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I also tried eco pro for about a week but that didn't make any significant changes, and of course you don't buy a 535i to drive like a grandpa. Than I would've gone for a 528i
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  #10  
Old 04-12-2016, 12:34 PM
Trian Trian is offline
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Quote:
Originally Posted by The X Men View Post
Try keeping your rpm below 2K when accelerating for better gas mileage.
I know this will work but I don't think that explains the poor gas mileage. I do my most heavy-foot work off every light. I go to work usually at 5:30 am or so and with so few cars around I tend to play around a bit (just about every light and every curve).

I can only suggest you fill up your gas tank a few times and record how many miles since last tank fill, and how many gallons went into the fill up. Then with those numbers, go back to your dealer.
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  #11  
Old 04-12-2016, 01:17 PM
belal242 belal242 is offline
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check your air filters. I'd also start to log how many KM you are getting on each tank before your next fill up. Avg that number over 5 refills and then see if you are getting the same numbers as your computer reads out. I generally never follow the computer. I do pay attention to how many miles I have between each tank before it goes empty. On average I can get about 300 miles in the winter and 330 miles in the summer per tank. FYI i have a 550 (V8). You can also adjust your trip calculator to reset every time your car is off for more than 4 hours. I am able to calculate my trips mileage with real time MPG read outs.
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  #12  
Old 04-12-2016, 01:21 PM
Mugiwara Mugiwara is offline
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Quote:
Originally Posted by belal242 View Post
check your air filters. I'd also start to log how many KM you are getting on each tank before your next fill up. Avg that number over 5 refills and then see if you are getting the same numbers as your computer reads out. I generally never follow the computer. I do pay attention to how many miles I have between each tank before it goes empty. On average I can get about 300 miles in the winter and 330 miles in the summer per tank. FYI i have a 550 (V8). You can also adjust your trip calculator to reset every time your car is off for more than 4 hours. I am able to calculate my trips mileage with real time MPG read outs.
Lol, I almost have the same mpg as you, slightly more, like 10-20miles more... I think it isn't normal at all as I can hear... I'll take it to the dealer soon then...
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  #13  
Old 04-12-2016, 02:06 PM
belal242 belal242 is offline
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Originally Posted by Mugiwara View Post
Lol, I almost have the same mpg as you, slightly more, like 10-20miles more... I think it isn't normal at all as I can hear... I'll take it to the dealer soon then...
I forgot to mention that is with about 17 gallon fill ups. 18 MPG on the V8. Now from what I was able to gather, a lot of 535 owners have been getting similar number, maybe a couple mpg more.

With that said you are averaging about 4 mpg less than what other 535 drives get. I think you are right, the car needs to be checked out.
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  #14  
Old 04-12-2016, 02:24 PM
LordBaldor LordBaldor is online now
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Mein Auto: 2011 535xi Alpine White
Hmmm...I get around 22 or 23 mpg around town with my 535.... I'm about 65% city too in Wisconsin. Hit 28 during my Florida trip which was nice. 400 miles on 1 tank...about.
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  #15  
Old 04-12-2016, 03:08 PM
Mugiwara Mugiwara is offline
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Mein Auto: 535i xDrive 2012 High Ex.
If I keep driving in town for an extended period of time it could get well up to 16 liters per 100km about 14mpg which is equal to a V8 which is a lot heavier and also more powerful. I'm gonna set an appointment for a checkout. I had done some programming to my BMW (activate sportsdisplay). Hope they won't bitch about that.
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  #16  
Old 04-12-2016, 03:12 PM
Deimis Deimis is offline
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Quote:
Originally Posted by Mugiwara View Post
If I keep driving in town for an extended period of time it could get well up to 16 liters per 100km about 14mpg which is equal to a V8 which is a lot heavier and also more powerful. I'm gonna set an appointment for a checkout. I had done some programming to my BMW (activate sportsdisplay). Hope they won't bitch about that.

Let us know what the dealer say to you i got inspired by you and created a thread about 3.0 diesel
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  #17  
Old 04-12-2016, 06:04 PM
blazingdon blazingdon is offline
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Mein Auto: BMW F10 535i XDrive
Well if i'm you guys, i won't complain a bit.
My 2013 535xi averages about 12 MPG.
My 2011 535xi used to do about 10 MPG. I initially thought there was an issue, but dealer said it was normal. that because i do mostly city driving. i barely get on the highway. (there's almost no such thing as highway to me living in New York, maybe if you drive like 2 am on the highway and there's no traffic there.)
But calculating the total miles i drive divided about how much gas i used it averages about 15-16 MPG.
But if i ever get to drive on highway for a long time, i get up to 30 MPG.
But check with the dealer to confirm.
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  #18  
Old 04-12-2016, 06:41 PM
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Sonicendeavor Sonicendeavor is offline
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Mein Auto: 2014 535i MSport
Fuelly.com has averages for every car based on their community of users. I use their app to track mine at each fill up (stats are in my signature)
http://www.fuelly.com/car/bmw/535i
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Mods: Opticoat Pro,v2 coilovers, Michelin PSS, Cyba quad black chrome exhaust tips, coded various features myself.
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  #19  
Old 04-12-2016, 06:49 PM
daviss2 daviss2 is offline
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I average 19.5 mpg with my 2011 535i xdrive. Mostly highway miles.
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  #20  
Old 04-13-2016, 10:15 AM
The X Men The X Men is offline
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Quote:
Originally Posted by Mugiwara View Post
If I keep driving in town for an extended period of time it could get well up to 16 liters per 100km about 14mpg which is equal to a V8 which is a lot heavier and also more powerful. I'm gonna set an appointment for a checkout. I had done some programming to my BMW (activate sportsdisplay). Hope they won't bitch about that.
Dealers almost never solve MPG problems. A couple more areas to look at might be the gas station you are using, your spark plug's condition, air filter condition, dirty mass air sensor or carbon build up.
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  #21  
Old 04-13-2016, 06:24 PM
BamaF10 BamaF10 is online now
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Have you checked your air filter? I bet it is clogged to hell and your engine is begging for some clean air. thus burning more fuel to compensate for lack of air. are your tailpipes covered in more carbon soot than normal??

Last edited by BamaF10; 04-13-2016 at 06:25 PM.
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  #22  
Old 04-13-2016, 06:54 PM
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Sonicendeavor Sonicendeavor is offline
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Originally Posted by BamaF10 View Post
Have you checked your air filter? I bet it is clogged to hell and your engine is begging for some clean air. thus burning more fuel to compensate for lack of air. are your tailpipes covered in more carbon soot than normal??
That used to be true with older engines, but modern engines automatically adjust for air quality. Consumer reports tested this and found that performance is affected but not fuel economy. I've seen this verified in other tests as well.
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Mods: Opticoat Pro,v2 coilovers, Michelin PSS, Cyba quad black chrome exhaust tips, coded various features myself.
20/80 Highway/City
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