Bimmerfest - BMW Forums

Bimmerfest - BMW Forums (http://www.bimmerfest.com/forums/index.php)
-   X3 F25 (2011 - current) (http://www.bimmerfest.com/forums/forumdisplay.php?f=158)
-   -   Still Amazed at My Gas Mileage (http://www.bimmerfest.com/forums/showthread.php?t=686642)

dudley07726 04-01-2013 05:22 AM

Still Amazed at My Gas Mileage
 
Had my 2012 X3 for 1 year now. I am still amazed at the gas mileage this 2.8 (I6) gets. Took a 212 mile round trip yesterday and averaged 29.8 MPG. First half of the trip I averaged 30.3 MPG. My 2007 Honda CRV and 2003 RAV4 never came close to that.

Mr Mojo Risin 04-01-2013 07:44 AM

Hmmm. I just bought a 2013 28i and am averaging 23 mpg after 1500 miles. My commute is a mix of highway and stop&go traffic but I was hoping for more.

lair12 04-01-2013 09:02 AM

My 2012 x3 i35 gets 17 in city and 21 on highway. Sucks.

wpattison 04-01-2013 10:01 AM

Just wondering if the OP, and others, are utilizing Eco-Pro mode and/or Auto Start/Stop much? I'm a week into owning my 2013 X3 35i and the Auto Start/Stop is still freaking me out every time it engages. I can't get past the feeling the car died. Anyway, I'm still sticking with it to see how the mileage compares over time.

Hardrada 04-01-2013 10:23 AM

I'm at 2,500 miles.

I'm amazed at the huuuuuge range of the mileage.

In eco-pro mode on the highway with a light foot, I get about 29 to 30

Driving hard around town, it can (and does) go as low as 18, and can sometimes dip into the 17 area in Sport mode.

My overall average is only 19.8 (by their count) or 19-even by my count (miles driven since last fill up divided by gallons purchased at the fillup). Mostly suburban driving and I just really like sport or DS mode better than Comfort, most of the time.

Mr Mojo Risin 04-01-2013 10:32 AM

I primarily use comfort mode with a/s/s turned off. Just wait until the a/s/s starts shutting your car off at the end of your driveway and in parking lots. Now that's bloody annoying

dudley07726 04-01-2013 10:40 AM

My X3 is a 2012 and does not have eco mode nor auto stop/start.

The X Men 04-01-2013 11:18 AM

Quote:

Originally Posted by Mr Mojo Risin (Post 7486655)
Just wait until the a/s/s starts shutting your car off at the end of your driveway and in parking lots. Now that's bloody annoying

I dont understand, why is it annoying? Doesnt your car start back up automatically after you let of the brakes?

c3uo 04-01-2013 11:47 AM

I've been really impressed with our 2011 35i fuel mileage. It now has 24,000 miles and has averaged ~22.5 USMPG (10.5 l/100km) since new. I got 29 USMPG (8.2 l/100 km) on a recent 1000 mile road trip where we average ~73 MPH.

Keep in mind my average mileage includes a lot of snow / winter driving.

Mr Mojo Risin 04-01-2013 06:10 PM

It's annoying because its extra wear and tear on the starter for a 1 second stop. Add on top of that the number of heads that turn at stop signs thinking you stalled your $50k vehicle

Capobranco 04-01-2013 06:32 PM

Quote:

Originally Posted by lair12 (Post 7486388)
My 2012 x3 i35 gets 17 in city and 21 on highway. Sucks.

Wow that really does suck - my M3 does better!
I only have 1000 miles on my X3 35i - it's too early to say definitively, but by seat of the pants reckoning, I am doing better than your numbers....

Want the Thrill 04-01-2013 07:35 PM

Quote:

Originally Posted by c3uo (Post 7486838)
I've been really impressed with our 2011 35i fuel mileage. It now has 24,000 miles and has averaged ~22.5 USMPG (10.5 l/100km) since new. I got 29 USMPG (8.2 l/100 km) on a recent 1000 mile road trip where we average ~73 MPH.

Keep in mind my average mileage includes a lot of snow / winter driving.

I'm getting about the exact same numbers as you on my 35i. I don't understand why others have such low numbers? Glad I'm at the high end!:thumbup:

The X Men 04-02-2013 05:44 AM

Quote:

Originally Posted by Mr Mojo Risin (Post 7487839)
It's annoying because its extra wear and tear on the starter for a 1 second stop. Add on top of that the number of heads that turn at stop signs thinking you stalled your $50k vehicle

BMW put in a heavy duty starter for the auto start and stop application. Chances are, the starter will out last your car. ASS have been in use in Europe for years with no reports of wide spread starter failure problems.
As for the people who look at you when the ASS is activated and automatically starts up, they are simply amazed at the level of technology of your BMW :) :)

wpattison 04-02-2013 07:43 AM

Quote:

Originally Posted by The X Men (Post 7488647)
BMW put in a heavy duty starter for the auto start and stop application. Chances are, the starter will out last your car. ASS have been in use in Europe for years with no reports of wide spread starter failure problems.
As for the people who look at you when the ASS is activated and automatically starts up, they are simply amazed at the level of technology of your BMW :) :)

Where did you see they used a heavy duty starter? I don't doubt you, but a source would be nice. :) That makes me feel better to hear that, actually.

I'm a little over a week in having the new X3, and I'm still giving A/S/S a go. I won't lie - it's unnerving as hell having it cut out on me...

The X Men 04-02-2013 08:38 AM

Quote:

Originally Posted by wpattison (Post 7488834)
Where did you see they used a heavy duty starter? I don't doubt you, but a source would be nice. :) That makes me feel better to hear that, actually.

I'm a little over a week in having the new X3, and I'm still giving A/S/S a go. I won't lie - it's unnerving as hell having it cut out on me...

The info use to be on the BMW USA website, but I guess they took it off. Here is some info on Wiki:

"BMW

BMW is including the technology across many of its cars and the MINI line for 2008 as part of its Efficient Dynamics brand. BMW has been interested in ways to reduce parasitic losses on engines, so the company took the technology a step further. Instead of using an integrated starter generator, BMW has used an enhanced-starter which is nothing more than a conventional starter, developed by Robert Bosch GmbH, that can withstand the increased number of engine-starts in a stop-start vehicle. BMW has developed the system such that the alternator is not activated most of the time. This means that electrical components in the vehicle are normally running on battery power. When the battery needs to be charged or when decelerating or braking, the alternator is activated to recharge the battery (regenerative braking). Since this battery experiences very different load characteristics than a normal car battery, BMW used an absorptive glass mat type instead. Due to the use of regenerative braking, some have started calling this type of system a micro hybrid, a step below a mild hybrid system where the ISG can be used to assist the engine or even drive the vehicle."

wpattison 04-02-2013 09:09 AM

Quote:

Originally Posted by The X Men (Post 7488979)
The info use to be on the BMW USA website, but I guess they took it off. Here is some info on Wiki:

"BMW

BMW is including the technology across many of its cars and the MINI line for 2008 as part of its Efficient Dynamics brand. BMW has been interested in ways to reduce parasitic losses on engines, so the company took the technology a step further. Instead of using an integrated starter generator, BMW has used an enhanced-starter which is nothing more than a conventional starter, developed by Robert Bosch GmbH, that can withstand the increased number of engine-starts in a stop-start vehicle. BMW has developed the system such that the alternator is not activated most of the time. This means that electrical components in the vehicle are normally running on battery power. When the battery needs to be charged or when decelerating or braking, the alternator is activated to recharge the battery (regenerative braking). Since this battery experiences very different load characteristics than a normal car battery, BMW used an absorptive glass mat type instead. Due to the use of regenerative braking, some have started calling this type of system a micro hybrid, a step below a mild hybrid system where the ISG can be used to assist the engine or even drive the vehicle."

Wow - that actually goes into and answers some other questions I had. Thanks for sharing! Can you link to that article? I want to read more about it. EDIT: nevermind, found it: http://en.wikipedia.org/wiki/Start-stop_system

noka 04-02-2013 03:17 PM

Quote:

Originally Posted by wpattison (Post 7489054)
Wow - that actually goes into and answers some other questions I had. Thanks for sharing! Can you link to that article? I want to read more about it. EDIT: nevermind, found it: http://en.wikipedia.org/wiki/Start-stop_system

Do we know whether the current X3/F25 uses this technology exactly as described? For example, the Owner's Manual says that start/stop puts extra wear on components. Is our alternator and starter separate, etc? I wonder.

wpattison 04-02-2013 04:22 PM

Quote:

Originally Posted by noka (Post 7490035)
Do we know whether the current X3/F25 uses this technology exactly as described? For example, the Owner's Manual says that start/stop puts extra wear on components. Is our alternator and starter separate, etc? I wonder.

According to realoem.com, they are: http://www.realoem.com/bmw/partgrp.d...82&hg=12&fg=20 (i.e. generator and starter)

noka 04-02-2013 06:31 PM

I should have checked there.

bimmernut1 04-02-2013 09:05 PM

Quote:

Originally Posted by The X Men (Post 7488979)
The info use to be on the BMW USA website, but I guess they took it off. Here is some info on Wiki:

"BMW

Since this battery experiences very different load characteristics than a normal car battery, BMW used an absorptive glass mat type instead. "


I can see it now:

New alternator $300
New battery $1500

I didn't think to check the cost of a battery for this new technology.

Fjrmann 04-03-2013 05:50 AM

Quote:

Originally Posted by dudley07726 (Post 7485996)
Had my 2012 X3 for 1 year now. I am still amazed at the gas mileage this 2.8 (I6) gets. Took a 212 mile round trip yesterday and averaged 29.8 MPG. First half of the trip I averaged 30.3 MPG. My 2007 Honda CRV and 2003 RAV4 never came close to that.

the 2.8 is a 4 cylinder not an inline 6. that is impressive gas mileage...must have had a tail wind both ways...LOL

The X3 is available in two trim levels: xDrive28i and xDrive35i. The xDrive28i is powered by a 240-hp 2.0-liter four-cylinder turbocharged engine, while the xDrive35i has a 300-hp 3.0-liter turbocharged inline six-cylinder;

dudley07726 04-03-2013 06:17 AM

Quote:

Originally Posted by Fjrmann (Post 7491441)
the 2.8 is a 4 cylinder not an inline 6. that is impressive gas mileage...must have had a tail wind both ways...LOL

The X3 is available in two trim levels: xDrive28i and xDrive35i. The xDrive28i is powered by a 240-hp 2.0-liter four-cylinder turbocharged engine, while the xDrive35i has a 300-hp 3.0-liter turbocharged inline six-cylinder;

Sorry to correct you but my 2012 2.8 is indeed a 6 cyl. 2013's were changed to turbo 4.

Fjrmann 04-03-2013 06:45 AM

i love being corrected, no need to be sorry, i misread your car year. i was indeed refering to the 2013's

no harm no foul, sir

erkbiz 04-03-2013 10:36 AM

warranty claim on a dead starter?
 
Like noka I too have read in the owner's manual that the start/stop puts extra wear on components.

I wonder if the starter died while the vehicle was under warranty, and if the vehicle gathers ASS use data, if the dealer could say the warranty will not cover the starter because of what is stated in the owner's manual?

Or, for that matter, on any other component the dealer chooses to state is affected by ASS.

ERK

noka 04-03-2013 03:02 PM

Just my guess: I doubt that warranty would not cover it.


All times are GMT -7. The time now is 05:06 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms