135i Fuel Consumption - I think my fuel gauge must be broken!

thezone135i · 04-22-2014, 04:43 AM

Can I ask that everyone who posted here go back and edit their post to include whether they are N54, N55, 6MT, Step or DCT? Just wondering how these factors will affect consumption?

ItsHectic · 04-22-2014, 08:06 AM

N55 is more economic than the N54.

DCT is more economic than steptronic but not sure where manual fits in.

froop · 04-22-2014, 08:46 AM

I get approx 11-12 on Sydney highway/traffic driving. N54 6MT and 6AT.

7smurfs · 04-22-2014, 08:55 AM

14.4

N54 6mt

NoOg_sTaR · 04-22-2014, 12:45 PM

Quote:

Originally Posted by PeteA

100% E85? Gawd. Want to know what fuel pump work has been done!

Walbro 450L E85 fuel pump in modified stock bucket. Cobb custom tuned on dyno.

I have been meaning to do a build thread update for a while now.

Knightelf · 04-22-2014, 05:57 PM

I have 11.5L/100km on the computer, not sure how accurate that is, I reckon I get about 400km from a tank.

N55 DCT

Prodigy. · 04-22-2014, 07:50 PM

Quote:

Originally Posted by thezone135i

Can I ask that everyone who posted here go back and edit their post to include whether they are N54, N55, 6MT, Step or DCT? Just wondering how these factors will affect consumption?

Quote:

Originally Posted by Prodigy 72

Average 10.4 with mainly city driving and short trips. Better fuel consumption than my old Golf R.

N55 DCT

BMW86 · 04-22-2014, 08:25 PM

Quote:

Originally Posted by NoOg_sTaR

Walbro 450L E85 fuel pump in modified stock bucket. Cobb custom tuned on dyno.

I have been meaning to do a build thread update for a while now.

Any logs? Is your HPFP maxed?

NoOg_sTaR · 04-23-2014, 09:33 PM

HPFP still has room to play. It was tuned on the dyno so I haven't bothered with logs.

But I might do a few log runs soon anyway.

elzorro4 · 10-14-2014, 01:40 PM

I live in Buenos Aires - Argentina, I drive 95% of the time in the city and my average is around 18L/100km (13 mpg), at the highway, at 75 mph I do 27 mpg....

I have a 135i N55 DCT with 6500 miles... Although I drive under intense traffic and Im always braking and accelerating from 0 I dont know if there is something wrong with the car... I guess the low consumption at high speeds is an indicator everything is OK, but I honestly thought that the consumption would be less...

Blauweisser · 10-14-2014, 05:28 PM

When we moved from Brisbane to the Southern Highlands, we drove down at highway speed limits. Fuel consumption was 6.1 L/100 km. It was a reminder of what a great choice the little 125i coupe has been for us - plenty of power for most situations, with acceptable fuel consumption. And then there's that great N/A straight-six exhaust note from the E52.

Alpha Trion · 10-14-2014, 07:01 PM

mixed driving city and hwy (80/20) with a squirt here and there

intake and exhaust only engine mods (no jb at the moment)

had the walnut blast done recently.. but didnt really make a diff to consumption still around the 10L mark

n54 AT

BMWhoarder · 10-14-2014, 07:15 PM

i run E50 daily, and i'll see around 300-350km around town. I dont exactly drive conservatively, but this is stop start traffic to work and home.

When i ran 98, it was 450km under the same conditions.

Car is 2008 135i (N54) 6MT with JB4

OzJustin · 10-15-2014, 05:42 PM

Approx 11.0L/100km in urban environment (50/60kph average) for me.

N54, Steptronic, Cobb & bolt-ons, Alpina TCU flash (mainly drive in economy mode).

7smurfs · 10-15-2014, 05:45 PM

Mixed driving I get 11.7L/100km

Car is 2010 135i (N54) 6MT with JB4

Anthony B · 10-16-2014, 01:55 AM

10.8/100km a lot of peak hour traffic & driving like my hair is on fire, will be good to see how my fuel economy goes when I get my jb4 installed on Monday.

My average speed is 54.8km/h god I hate the m4 traffic

N54 & steptronic

ady9 · 10-16-2014, 02:58 AM

Quote:

Originally Posted by BMW86

I get around 650-700km per tank mostly city driving.

Is that what you actually get or what the computer says you should get? Cause there is no way in hell you'd get anything close to that assuming you have a n54

thezone135i · 08-28-2017, 02:18 AM

Resurrecting my own old thread I've just started getting 16.9l/100km. wtf? MHDstage 2.

Dackelone · 08-28-2017, 05:10 AM

Quote:

Originally Posted by thezone135i

Resurrection my own old thread I've just started getting 16.9l/100km. wtf? MHDstage 2.

I had to buy a full tank of gas THREE times in one day(on a 600km trip). Our cars can really suck down some fuel when driving fast.

MightyMouseTech · 08-28-2017, 07:19 AM

Low speed stop and go city driving I can be as bad as 16L/100. Highway cruising can be as good as 7L/100. So depends on the mix of the two and get between those two numbers.

Prolifik · 08-28-2017, 04:06 PM

Fuel light is on at 360 always give or take a few
Around 12 - 12.5p/100

thezone135i · 08-28-2017, 05:01 PM

Quote:

Originally Posted by Prolifik

Fuel light is on at 360 always give or take a few
Around 12 - 12.5p/100

This is normally where mine is at - just last few weeks started headin into the 16s.

04-22-2014, 04:43 AM	#23
thezone135i Lieutenant 54 Rep 472 Posts Drives: Volvo S60 R-Design Polestar Join Date: Mar 2014 Location: Melbourne, Australia iTrader: (0) Garage List 2008 BMW 135i [0.00] 2012 BMW 535i [0.00]	Can I ask that everyone who posted here go back and edit their post to include whether they are N54, N55, 6MT, Step or DCT? Just wondering how these factors will affect consumption? Last edited by thezone135i; 04-22-2014 at 05:07 AM..
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04-22-2014, 08:06 AM	#24
ItsHectic But your honour it's my Affluenza I swear! 58 Rep 533 Posts Drives: at a reasonable speed Join Date: Aug 2011 Location: NSW iTrader: (0)	N55 is more economic than the N54. DCT is more economic than steptronic but not sure where manual fits in. __________________ 135i M Sport DCT. BSM/Oyster/GP trim. FBO Cobb, Bilstein EDC coilovers, M3 bushings, PSS. Knowledge of the Tapa Tapa Tapa street race start.
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04-22-2014, 08:46 AM	#25
froop Colonel 171 Rep 2,682 Posts Drives: 08 AW 6MT E82 Join Date: Jul 2012 Location: Sydney, Australia iTrader: (3)	I get approx 11-12 on Sydney highway/traffic driving. N54 6MT and 6AT. __________________ froop's AW 135i Build Thread
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04-22-2014, 08:55 AM	#26
7smurfs Captain 137 Rep 902 Posts Drives: M3 CS Join Date: Apr 2014 Location: Melbourne iTrader: (0)	14.4 N54 6mt
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04-22-2014, 05:57 PM	#28
Knightelf Captain 87 Rep 886 Posts Drives: M235i Join Date: Oct 2009 Location: Brisbane iTrader: (0) Garage List 2011 BMW 135i [0.00]	I have 11.5L/100km on the computer, not sure how accurate that is, I reckon I get about 400km from a tank. N55 DCT
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04-23-2014, 09:33 PM	#31
NoOg_sTaR Private 9 Rep 88 Posts Drives: E82 135i, ZZT231 Join Date: Mar 2012 Location: Perth iTrader: (0)	HPFP still has room to play. It was tuned on the dyno so I haven't bothered with logs. But I might do a few log runs soon anyway.
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10-14-2014, 01:40 PM	#32
elzorro4 Private First Class 20 Rep 116 Posts Drives: 135i Join Date: Oct 2014 Location: Argentina iTrader: (0)	I live in Buenos Aires - Argentina, I drive 95% of the time in the city and my average is around 18L/100km (13 mpg), at the highway, at 75 mph I do 27 mpg.... I have a 135i N55 DCT with 6500 miles... Although I drive under intense traffic and Im always braking and accelerating from 0 I dont know if there is something wrong with the car... I guess the low consumption at high speeds is an indicator everything is OK, but I honestly thought that the consumption would be less...
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10-14-2014, 05:28 PM	#33
Blauweisser Private First Class 13 Rep 136 Posts Drives: 125i M-Sport Join Date: Apr 2011 Location: Oz iTrader: (0)	When we moved from Brisbane to the Southern Highlands, we drove down at highway speed limits. Fuel consumption was 6.1 L/100 km. It was a reminder of what a great choice the little 125i coupe has been for us - plenty of power for most situations, with acceptable fuel consumption. And then there's that great N/A straight-six exhaust note from the E52.
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10-14-2014, 07:01 PM	#34
Alpha Trion Lieutenant 30 Rep 491 Posts Drives: 135 Convertible Join Date: Apr 2011 Location: Sydney Australia iTrader: (0)	mixed driving city and hwy (80/20) with a squirt here and there intake and exhaust only engine mods (no jb at the moment) had the walnut blast done recently.. but didnt really make a diff to consumption still around the 10L mark n54 AT Last edited by Alpha Trion; 10-15-2014 at 05:38 AM..
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10-14-2014, 07:15 PM	#35
BMWhoarder Resisting mods 48 Rep 279 Posts Drives: 135i Join Date: Apr 2014 Location: Canberra iTrader: (1)	i run E50 daily, and i'll see around 300-350km around town. I dont exactly drive conservatively, but this is stop start traffic to work and home. When i ran 98, it was 450km under the same conditions. Car is 2008 135i (N54) 6MT with JB4
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10-15-2014, 05:42 PM	#36
OzJustin Lieutenant 77 Rep 541 Posts Drives: 2008 135i AT Monaco Blue Join Date: Dec 2012 Location: Brisbane, Australia iTrader: (0) Garage List 2008 BMW 135i [8.66]	Approx 11.0L/100km in urban environment (50/60kph average) for me. N54, Steptronic, Cobb & bolt-ons, Alpina TCU flash (mainly drive in economy mode). __________________ My Build Thread
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10-15-2014, 05:45 PM	#37
7smurfs Captain 137 Rep 902 Posts Drives: M3 CS Join Date: Apr 2014 Location: Melbourne iTrader: (0)	Mixed driving I get 11.7L/100km Car is 2010 135i (N54) 6MT with JB4
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10-16-2014, 01:55 AM	#38
Anthony B Private First Class 13 Rep 113 Posts Drives: lemans 135i & m30b35 e30 Join Date: May 2014 Location: Sydney iTrader: (0)	10.8/100km a lot of peak hour traffic & driving like my hair is on fire, will be good to see how my fuel economy goes when I get my jb4 installed on Monday. My average speed is 54.8km/h god I hate the m4 traffic N54 & steptronic
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08-28-2017, 02:18 AM	#40
thezone135i Lieutenant 54 Rep 472 Posts Drives: Volvo S60 R-Design Polestar Join Date: Mar 2014 Location: Melbourne, Australia iTrader: (0) Garage List 2008 BMW 135i [0.00] 2012 BMW 535i [0.00]	Resurrecting my own old thread I've just started getting 16.9l/100km. wtf? MHDstage 2. Last edited by thezone135i; 08-28-2017 at 06:32 AM..
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08-28-2017, 07:19 AM	#42
MightyMouseTech Major General 4338 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	Low speed stop and go city driving I can be as bad as 16L/100. Highway cruising can be as good as 7L/100. So depends on the mix of the two and get between those two numbers.
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08-28-2017, 04:06 PM	#43
Prolifik Private First Class 15 Rep 166 Posts Drives: 09 135i Join Date: Mar 2015 Location: Sydney Australia iTrader: (0)	Fuel light is on at 360 always give or take a few Around 12 - 12.5p/100
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