Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X5 E70 (2007 - 2013)

X5 E70 (2007 - 2013)
E70 BMW X5 produced between 2007 and 2013. Discuss the E70 X5 with other BMW owners here.

Reply
 
Thread Tools Display Modes
  #1  
Old 06-18-2012, 07:37 AM
yogi799 yogi799 is offline
Officially Welcomed to the 'Fest
Location: Ontario
 
Join Date: Sep 2008
Posts: 1,232
Mein Auto: '11 535i, '99 328i retd
What MPG to expect with 35d or 35i towing a boat?

Since getting a test-drive unit for a bit longer to do some towing (and for it to have a hitch in a first place) is basically impossible, I wanted to find out from you gentlemen about real MPG observed when towing stuff with the X5.

I have a 18" bowrider weighing about 2500 lbs with the trailer. Currently, I tow it with a 2003 Acura MDX with a 5-speed AT. The car has a really hard time staying in the 5th gear so basically it's the 4th all the way (I even lock it at that to prevent pointless shifts). The mileage sucks IMO, at about 65-70MPH (100-110 km/h) I get max 12 MPG (20 l/100km). That is a near 75% increase compared to not towing!

What could I expect from the X5? I presume the d will be a lot more economical? Any real-world numbers you can share for either of the models?

Thanks a tonne.
Reply With Quote
Advertisement
  #2  
Old 06-18-2012, 11:09 AM
peteo peteo is offline
Registered User
Location: NC
 
Join Date: Apr 2012
Posts: 42
Mein Auto: X5 35d
Quote:
Originally Posted by yogi799 View Post
Since getting a test-drive unit for a bit longer to do some towing (and for it to have a hitch in a first place) is basically impossible, I wanted to find out from you gentlemen about real MPG observed when towing stuff with the X5.

I have a 18" bowrider weighing about 2500 lbs with the trailer. Currently, I tow it with a 2003 Acura MDX with a 5-speed AT. The car has a really hard time staying in the 5th gear so basically it's the 4th all the way (I even lock it at that to prevent pointless shifts). The mileage sucks IMO, at about 65-70MPH (100-110 km/h) I get max 12 MPG (20 l/100km). That is a near 75% increase compared to not towing!

What could I expect from the X5? I presume the d will be a lot more economical? Any real-world numbers you can share for either of the models?

Thanks a tonne.
I am guessing here based on what I got with a previous X5 4.4I pulling a 6x10 enclosed trailer loaded with two motorcycles weighing 3500lbs. I would guess 18-20 for 35d.
__________________
Pete
2010 X5 35d
2010 R1200RT
Reply With Quote
  #3  
Old 06-18-2012, 11:22 AM
tonka858 tonka858 is offline
Officially Welcomed to the 'Fest
Location: san diego
 
Join Date: Sep 2011
Posts: 340
Mein Auto: 2011 x5d
Diesel will hold mileage way better then gas.
Reply With Quote
  #4  
Old 06-18-2012, 11:31 AM
blue dragon blue dragon is offline
Officially Welcomed to the 'Fest
Location: Pickering/Toronto
 
Join Date: Aug 2011
Posts: 743
Mein Auto: X5 35D
I'm towing a 6k lb boat and trailer. Keep it at 55-60 and you will be in the 12-13 litre/100km. Convert that to imperial if you want, I can't be bothered to. USA is the last hold out to converting to metric
__________________


| ZCW | ZPP | ZPS | ZRC | ZSP | ZTP | 322 | 2VA | 456 | 4AD | 4UB | 610 | 655 | 6FF | 6FL | Combox + CIC + LCI Headlight/Tailight retro |
Reply With Quote
  #5  
Old 06-18-2012, 12:23 PM
serge1's Avatar
serge1 serge1 is offline
Officially Welcomed to the 'Fest
Location: seattle
 
Join Date: Jan 2012
Posts: 708
Mein Auto: 2011 BMW X5 35D
Quote:
Originally Posted by blue dragon View Post
I'm towing a 6k lb boat and trailer. Keep it at 55-60 and you will be in the 12-13 litre/100km. Convert that to imperial if you want, I can't be bothered to. USA is the last hold out to converting to metric
I will do the public service: 13L/100km =18mpg.
Reply With Quote
  #6  
Old 06-18-2012, 01:29 PM
yogi799 yogi799 is offline
Officially Welcomed to the 'Fest
Location: Ontario
 
Join Date: Sep 2008
Posts: 1,232
Mein Auto: '11 535i, '99 328i retd
Quote:
Originally Posted by blue dragon View Post
I'm towing a 6k lb boat and trailer. Keep it at 55-60 and you will be in the 12-13 litre/100km. Convert that to imperial if you want, I can't be bothered to. USA is the last hold out to converting to metric
I am in the GTA too. Dang, seriously? 6k package and only 13 l /100? Am I reading this right?
Reply With Quote
  #7  
Old 06-18-2012, 02:53 PM
SteVTEC's Avatar
SteVTEC SteVTEC is offline
Officially Welcomed to the 'Fest
Location: DC Burbs
 
Join Date: Feb 2005
Posts: 1,247
Mein Auto: '11 E93 / '12 E70d
18 mpg while towing a 6000lb boat sounds pretty good to me. Boats do have the advantage of better aerodynamics due to the hull shape though. Still, I'd say that's pretty good. Nearly 20 mpg (US)!
__________________
Steve
2012 E70 X5d (IT'S HERE!) Deep Sea Blue / Sand Beige, Premium, 3rd Row, Multi-Contour
2011 E93 335i Deep Sea Blue / Oyster, Step, Premium, Convenience (PDC & CA), and that's it


HR&G Full Review: 2014 F33 428i M-Sport Convertible (my side auto-journo gig)
Reply With Quote
  #8  
Old 06-18-2012, 03:13 PM
OneFastX5 OneFastX5 is offline
Registered User
Location: Silicon Valley, California
 
Join Date: Feb 2011
Posts: 53
Mein Auto: 2011 X5 35d
I'm towing a 18.5ft Bayliner, about 4000lbs. I'm getting 19-20mpg on the freeway at 65mph.
I was getting 11-12mpg with my previous Explorer pulling the same boat on same trips, not to mention the explorer was slowing down to 45mph when going up-hill with the X5 keeps it at 65mph without even down shifting...
__________________
2011 BMW X5 35d 265HP 425TQ - Now with K&N & JBD Tuned !
2007 Audi Q7 3.6 280HP 266TQ
2000 Saleen Mustang 4.6 Supercharged 510HP 490TQ
Reply With Quote
  #9  
Old 06-18-2012, 03:30 PM
blue dragon blue dragon is offline
Officially Welcomed to the 'Fest
Location: Pickering/Toronto
 
Join Date: Aug 2011
Posts: 743
Mein Auto: X5 35D
Quote:
Originally Posted by yogi799 View Post
I am in the GTA too. Dang, seriously? 6k package and only 13 l /100? Am I reading this right?
http://www.xoutpost.com/bmw-sav-foru...ider-pics.html
__________________


| ZCW | ZPP | ZPS | ZRC | ZSP | ZTP | 322 | 2VA | 456 | 4AD | 4UB | 610 | 655 | 6FF | 6FL | Combox + CIC + LCI Headlight/Tailight retro |
Reply With Quote
  #10  
Old 06-18-2012, 10:17 PM
yogi799 yogi799 is offline
Officially Welcomed to the 'Fest
Location: Ontario
 
Join Date: Sep 2008
Posts: 1,232
Mein Auto: '11 535i, '99 328i retd
Quote:
Originally Posted by blue dragon View Post
OMG, that is some nice combo, damn.... Holy crap, if you guys can do 12l / 19mpg with 6k on the hitch then with my Bayliner 175 (~2500 lbs with trailer) I won't even notice any difference... My MDX is a complete disaster (19l/100km...12mpg), anyone care to guess what the 35i would produce? Would it be a lot better than my X? I am essentially trying to decide if it makes any sense to drive a diesel all year round for 4 months worth of summer towing (I don't care for fuel economy otherwise and much prefer a driving dynamic of gasoline engines for normal driving, just don't want to burn twice as much as I should on towing trips and I tow a lot, BTW, sometimes 3 hrs one way so it potentially adds up).
Attached Thumbnails
Click image for larger version

Name:	IMG_0015.jpg
Views:	101
Size:	109.8 KB
ID:	329773  

Last edited by yogi799; 06-18-2012 at 10:20 PM.
Reply With Quote
  #11  
Old 06-18-2012, 10:25 PM
yogi799 yogi799 is offline
Officially Welcomed to the 'Fest
Location: Ontario
 
Join Date: Sep 2008
Posts: 1,232
Mein Auto: '11 535i, '99 328i retd
Quote:
Originally Posted by OneFastX5 View Post
I'm towing a 18.5ft Bayliner, about 4000lbs. I'm getting 19-20mpg on the freeway at 65mph.
I was getting 11-12mpg with my previous Explorer pulling the same boat on same trips, not to mention the explorer was slowing down to 45mph when going up-hill with the X5 keeps it at 65mph without even down shifting...
Yup, same here. So I just wonder about the 35i now. Anyone? Would it suck just as bad as my MDX (and your Explorer)?
Reply With Quote
  #12  
Old 06-19-2012, 06:36 AM
blue dragon blue dragon is offline
Officially Welcomed to the 'Fest
Location: Pickering/Toronto
 
Join Date: Aug 2011
Posts: 743
Mein Auto: X5 35D
^^ If your bayliner is 2500 lbs with trailer, you won't even know its there with the diesel
__________________


| ZCW | ZPP | ZPS | ZRC | ZSP | ZTP | 322 | 2VA | 456 | 4AD | 4UB | 610 | 655 | 6FF | 6FL | Combox + CIC + LCI Headlight/Tailight retro |
Reply With Quote
  #13  
Old 06-19-2012, 06:52 AM
SteVTEC's Avatar
SteVTEC SteVTEC is offline
Officially Welcomed to the 'Fest
Location: DC Burbs
 
Join Date: Feb 2005
Posts: 1,247
Mein Auto: '11 E93 / '12 E70d
Obviously the 35i isn't going to do as well as the diesel because gas engines are less efficient anyways, but I don't think it'd be nearly as bad as your MDX. The 35i/N55 will also make peak torque from pretty much any cruise RPM which should help it maintain the upper gears easily for best economy. The d is obviously better for towing, but the 35i is gonna do pretty well too. I would not expect beyond mid-teen MPG with the 35i though - (15-17 l/100km). 11-12 MPG is 20-21 l/100km.

Driving dynamics... I love the zingy feel of the N55 in my E93 along with the exhaust note, but I feel as though it lost a lot of its charm as employed in the E70. The diesel didn't feel a whole lot different to drive, and didn't even sound that different either at least with the windows up. The X5 is not a vehicle that either the wife and I are going to be flogging out to redline for fun. That's what the E93 is for. So I think the diesel is right at home in the X5. 4 months of towing 3 hour one way trips would definitely add up on the gas. I'd get the d.
__________________
Steve
2012 E70 X5d (IT'S HERE!) Deep Sea Blue / Sand Beige, Premium, 3rd Row, Multi-Contour
2011 E93 335i Deep Sea Blue / Oyster, Step, Premium, Convenience (PDC & CA), and that's it


HR&G Full Review: 2014 F33 428i M-Sport Convertible (my side auto-journo gig)
Reply With Quote
  #14  
Old 06-19-2012, 08:19 PM
AndyX5d AndyX5d is offline
Registered User
Location: Libertyville, IL
 
Join Date: Mar 2012
Posts: 46
Mein Auto: 2010 X5 3.5d
I used to tow an 18.5 ft bayliner with a freaking ford escape I'm sure the 3.5i would be up to the task. I can't believe your MDX is having such trouble. Is it the older model with the smaller engine? We have a 2011 and it has plenty of power, unfortunately it doesn't have a hitch so I've never tried to tow with it. I went out for the first time with my 20' on a tandem trailer probably in the 5000-5500 lb range and the D had no issues. I could tell it was back there, but it pulled like a dream, I was still leaving people at stop lights. It's amazing what having a load will do to help spool the turbos quick. I specifically bought this vehicle for towing my boat and for the fantastic fuel economy for all the other driving I do. I love the way it drives and the monster torque that's always on hand.
Reply With Quote
  #15  
Old 06-19-2012, 08:22 PM
yogi799 yogi799 is offline
Officially Welcomed to the 'Fest
Location: Ontario
 
Join Date: Sep 2008
Posts: 1,232
Mein Auto: '11 535i, '99 328i retd
I am not saying the MDX is weak... (well, as long as I rev it really high). I can do all sorts of speeds and yes, I too am leaving ppl from the stoplights with the boat behind. BUT, it burns gas like crazy and cannot stay in the 5th (highest) gear at all. Maybe on a perfectly flat surface with a helping wind...

I can only imagine how bad the mileage would suck with 5k lbs...

It's 2003, 3.5 V6 240HP

I guess there are not too many 35i's towing anything. Makes sense I guess. But still, if one's not towing year round...

..

Last edited by yogi799; 06-19-2012 at 08:30 PM.
Reply With Quote
  #16  
Old 06-19-2012, 09:01 PM
Rickm5X3 Rickm5X3 is offline
Prefers bhp over mpg
Location: Colorado
 
Join Date: May 2008
Posts: 369
Mein Auto: E70 X5M and 4.8i
Getting rid of long ago paid for Acura for a $70k BMW makes no sense on a fuel economy basis. But I do think that ANY X5 choice you make will be a better tow vehicle than the Acura, especially if you option it with air sus and adaptive drive. X5 makes a nice stable tow platform and 6-speed auto is great in regards to finding the right gear for almost any situation.

35i or 35d would each do well, so maybe it comes down to which one you like driving overall.
Attached Thumbnails
Click image for larger version

Name:	utah.jpeg
Views:	104
Size:	106.7 KB
ID:	329878  
__________________
2011 X5M Alpine White/Sakhir Orange, Eucalyptus, Spare tire!, Comfort, Soft Close, Tech, Climate Package, Individual dash, Individual Audio, HUD, DVD, USB, Cold, OEM hitch
2008 X5 4.8i Space Gray/Tobacco, Premium, Sport (includes AD), Active Steering, HUD, Tech, Comfort, Cold, Climate Package, 3rd Row, Prem Audio, running boards, OEM hitch

Gone:
2005 X5 4.8is
2004 X5 4.4i Sport
2004 X3 3.0i 6MT
2002 M5
Reply With Quote
  #17  
Old 06-19-2012, 09:05 PM
yogi799 yogi799 is offline
Officially Welcomed to the 'Fest
Location: Ontario
 
Join Date: Sep 2008
Posts: 1,232
Mein Auto: '11 535i, '99 328i retd
Yup, I was thinking the same thing... Acura has been paid off decades ago LOL. But the thought of burning through gas at such an insane rate is just annoying. I know, in the end, it'll cost me $200-300 more over the length of the entire season, which is peanuts.

We're keeping the MDX until the F10 is paid off, but I still need to decide between the D and the I....
__________________
2011 535i F10 delivered
1999 328i E46 retired



LOGMYMPG sponsored by ckvideo.ca
Reply With Quote
  #18  
Old 06-19-2012, 09:37 PM
Rickm5X3 Rickm5X3 is offline
Prefers bhp over mpg
Location: Colorado
 
Join Date: May 2008
Posts: 369
Mein Auto: E70 X5M and 4.8i
The following calculator misses many other costs (maintenance on old car, etc.) but is a fun exercise to see how long it takes to breakeven on fuel economy alone: http://www.edmunds.com/calculators/gas-guzzler.html

But I guarantee if you hooked up your trailer to the 35d all that financial nonsense would go out the window just by virtue of the fun factor of the diesel alone!

Good luck and safe towing.

Oh yeah, my 4.8i gets 12 mpg average on big highway trips over multiple high altitude highway passes towing a 4,000 pound trailer plus bikes and other gear. Bought it CPO and the $40k I 'saved' over a comparable new X5 is my gas fund. $40k buys a lot of gas and I can even afford to burn dollar bills to start the campfire and come out ahead, lol.
__________________
2011 X5M Alpine White/Sakhir Orange, Eucalyptus, Spare tire!, Comfort, Soft Close, Tech, Climate Package, Individual dash, Individual Audio, HUD, DVD, USB, Cold, OEM hitch
2008 X5 4.8i Space Gray/Tobacco, Premium, Sport (includes AD), Active Steering, HUD, Tech, Comfort, Cold, Climate Package, 3rd Row, Prem Audio, running boards, OEM hitch

Gone:
2005 X5 4.8is
2004 X5 4.4i Sport
2004 X3 3.0i 6MT
2002 M5
Reply With Quote
  #19  
Old 06-19-2012, 10:08 PM
yogi799 yogi799 is offline
Officially Welcomed to the 'Fest
Location: Ontario
 
Join Date: Sep 2008
Posts: 1,232
Mein Auto: '11 535i, '99 328i retd
Good one! LOL.

I'd save the dollar bills for the payment instead. Wait, we don't even have dollar bills up here!
Reply With Quote
  #20  
Old 06-20-2012, 06:29 AM
blue dragon blue dragon is offline
Officially Welcomed to the 'Fest
Location: Pickering/Toronto
 
Join Date: Aug 2011
Posts: 743
Mein Auto: X5 35D
Quote:
Originally Posted by yogi799 View Post
Good one! LOL.

I'd save the dollar bills for the payment instead. Wait, we don't even have dollar bills up here!
If you are close to me, I don't mind swinging by so you can see how the 35D tows your boat. PM me and we will see if we can work it out
__________________


| ZCW | ZPP | ZPS | ZRC | ZSP | ZTP | 322 | 2VA | 456 | 4AD | 4UB | 610 | 655 | 6FF | 6FL | Combox + CIC + LCI Headlight/Tailight retro |
Reply With Quote
  #21  
Old 06-20-2012, 07:23 AM
yogi799 yogi799 is offline
Officially Welcomed to the 'Fest
Location: Ontario
 
Join Date: Sep 2008
Posts: 1,232
Mein Auto: '11 535i, '99 328i retd
That would be awesome, actually! I am next door to you, I think! I will PM.

If there's anyone towing with an I, keep the numbers coming guys, I am curious of the real-world MPG with that engine. We know the D simply rocks for towing already...

I was lurking around in the new MDX forum and same story as mine. 4k lbs package results in 10-13MPG... (gasoline)


..

Last edited by yogi799; 06-20-2012 at 11:39 AM.
Reply With Quote
  #22  
Old 06-20-2012, 08:37 AM
SteVTEC's Avatar
SteVTEC SteVTEC is offline
Officially Welcomed to the 'Fest
Location: DC Burbs
 
Join Date: Feb 2005
Posts: 1,247
Mein Auto: '11 E93 / '12 E70d
Quote:
Originally Posted by yogi799 View Post
I am not saying the MDX is weak... (well, as long as I rev it really high). I can do all sorts of speeds and yes, I too am leaving ppl from the stoplights with the boat behind. BUT, it burns gas like crazy and cannot stay in the 5th (highest) gear at all. Maybe on a perfectly flat surface with a helping wind...

I can only imagine how bad the mileage would suck with 5k lbs...

It's 2003, 3.5 V6 240HP

I guess there are not too many 35i's towing anything. Makes sense I guess. But still, if one's not towing year round...

..
That's precisely the problem. Hondas/Acuras in particular are notorious for having lousy low-end torque, which is what you need for towing. Yes it has the power it needs to accelerate and get up to speed, but not the bottom end power to maintain top gear and tow up grades efficiently. That won't be the case with either the 35i or 35d due to both making tons of torque below 2000rpm.

At 2000rpm....

A 3.0si N52 has 80hp available, and the J35 in your Acura would probably be similar.
A 35i N55 has 107hp available
A 35d M57 has 161hp available

An N52 3.0si X5 would be a lousy choice as a tow vehicle also. It has to hit nearly 4000rpm to make the same power that the N55 does at 3000rpm, and the M57 diesel does at only 2000rpm. I've been there and done that towing fully loaded U-haul trailers in my wife's 2002 Toyota Highlander (3.0L/4AT). Foot down, 3rd gear running close to 4000rpm, trying to get up looong highway grades and not losing momentum getting stuck behind slower traffic, but also trying hard not to clog up the left lane. Diesel would make that a cake walk, and the 35i wouldn't be too shabby either.
__________________
Steve
2012 E70 X5d (IT'S HERE!) Deep Sea Blue / Sand Beige, Premium, 3rd Row, Multi-Contour
2011 E93 335i Deep Sea Blue / Oyster, Step, Premium, Convenience (PDC & CA), and that's it


HR&G Full Review: 2014 F33 428i M-Sport Convertible (my side auto-journo gig)

Last edited by SteVTEC; 06-20-2012 at 08:38 AM.
Reply With Quote
  #23  
Old 06-20-2012, 11:47 AM
yogi799 yogi799 is offline
Officially Welcomed to the 'Fest
Location: Ontario
 
Join Date: Sep 2008
Posts: 1,232
Mein Auto: '11 535i, '99 328i retd
Honestly, it has a hard time staying in the 5th top gear even when not towing in certain circumstances! (and I don't think I've got any engine problems, my gas mileage and performance do not seem to deviate much from the official figures and other users) - basically even a strong headwind or a slight incline with 2-3 passengers in the car and some avg amount of cargo inside will cause it to shift in and out of the 5th. Pathetic, seriously. That 5th gear or the whole power package design is just plain ridiculous in the MDX.

Having said that, I suppose the 35i with its 8sp tranny will not stay in the 8th either. Probably 6th or 7th most of the time (at 65-75mph)? That's my main concern at the moment. I wouldn't want to go with the 35i just to find out it kinda sucks on gas too (having had a choice of a diesel instead!) - given your 2k RPM numbers I am not sure the N55 is the right direction, especially paired with the 8sp. Hmmm.....
Reply With Quote
  #24  
Old 06-20-2012, 12:23 PM
blue dragon blue dragon is offline
Officially Welcomed to the 'Fest
Location: Pickering/Toronto
 
Join Date: Aug 2011
Posts: 743
Mein Auto: X5 35D
^^ At 1700 RPM, a 35D M57 has 425 lb.ft of torque available, torque is the relevant number for towing, not necessarily horsepower
__________________


| ZCW | ZPP | ZPS | ZRC | ZSP | ZTP | 322 | 2VA | 456 | 4AD | 4UB | 610 | 655 | 6FF | 6FL | Combox + CIC + LCI Headlight/Tailight retro |
Reply With Quote
  #25  
Old 06-20-2012, 12:52 PM
serge1's Avatar
serge1 serge1 is offline
Officially Welcomed to the 'Fest
Location: seattle
 
Join Date: Jan 2012
Posts: 708
Mein Auto: 2011 BMW X5 35D
Quote:
Originally Posted by yogi799 View Post
Honestly, it has a hard time staying in the 5th top gear even when not towing in certain circumstances! (and I don't think I've got any engine problems, my gas mileage and performance do not seem to deviate much from the official figures and other users)
Call it a high-revving engine and be done with it
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X5 E70 (2007 - 2013)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 10:09 PM.


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