koalatm

If you go to google and type this in, you'll get the conversion instantly:

ie: " 6.5 l / 100 km to mpg " = 36.186859 mpg

Bob338

Thnx!!!

ak_ku

About 1400miles from the reset. Average 33,3mpg, 7 litres /100km (60/40 Hwy/City).

skelly5282

Very cold in western Canada as of late.Hwy mileage is averaging 7.2l/100 km at approx avg speed of 112 km/hr.Overall average with city and idling factored in has been 8.3l/100 km.Considering the climate,pretty good.Come warmer months I'm sure this could easily average mid 6's per 100km.

bigd69

Equals 43.48 mpg imp for us northerners

tequilaguy1013

I have a 2013 GLK 250 blu-tec and have been running it since Feb 2013. We average 65K per year for business as well mostly hwy driving and have been getting between 920 and 970 with an avarage speed of 120kmh. Am confident that that would increase with a lighter foot. Great vehicle for business driving. Depending on your shoulder size and that of passengers, you will find it a little tighter than the Audi but overall a great vehicle for the price. Couple things that I find quirky with some options but each will have different opinions on varying features.

Bwadd

This was me back in July and writing this from my iPhone while the wide drives the last 2 hours of our annual NB trip...

I'm actually a little concerned about my fuel consumption maybe you guys convince me there is no issue.

2013 250 w/ 20k - we had 2 adults a boxer and a 5 yr old with the entire back full. We have OEM glk 19's with Dunlop sport m3 winters on.

Filled up right at the highway made 1 small stop in Cornwall and had to fill up in Quebec approx 830km and 7.9l/100. Coming home first tank was just over 800km and 7.6l/100

This is very low considering we were on cruise at 115. I. The summer on OEM 20's I would show a range on 950 sometimes on a short highway trip to golf 1 hr drive.

Should I take her in for a check up or chalk it up to winter wheels and weather?

gbkmtb

We're in northern Montana. We've got 5K miles on our 2014. We've seen a significant decrease in economy in cold weather driving (5-10%) this winter over last fall. We're using same diesel (US #2).

rmeier1

I agree with the cold weather answer. My mainly suburban driving in Sept. - Oct. gave
a measured 26.7 mpg (U.S) over 3 refuelings. My last fill up measured 23.8.
Not an exact measurement, (one tank fill), but enough to show the downward trend
with temperature.

roscoe108

Also agreed. I picked up my GLK 250 the week before Christmas 2013 and the weather in southern Ontario has been bitterly cold since then. Two months later, and I've been averaging about 10 litres/100 km or roughly 24 mpg. However, that is about 70% city driving and 30% back roads driving. I'm rarely on the freeway.

Looking forward to warmer months and better economy.

Bob338

I just completed a 3000 mile trip in 6 days with about 90% highway miles and the balance, traffic and city driving. High speeds mostly, around 85mph never exceeding 100mph. Average calculated from pump and speedometer miles was 33.6 mpg for entire trip. Local driving over the time I've had the car has consistently averaged a tad over 35mpg. Still looking for the first complaint or problem of ANY kind with about 8K miles on the car.

glayfan40

Have a little over 6500 mi on my 2013 GLK250, my avg. MPG is at 29.3 over the last 15 tanks since July 10th, 2013. I do 30% city 70% highway (just outside of Boston).

107123210

Since my last reset, display says 30mpg with about same 30/70 city/highway split.

Previous tank was same 30mpg with similar usage. (by calculation)

One before that was 100% highway. 35.6mpg (6.58 l/100km) (by calculation)

Car has only done about 1800 miles.

So far can't see getting much better if we drive at say 10% over posted limit. Keeping speed down and using cruise control does however improve mileage. But everyone passes us then

LesF

I did a jaunt from Jupiter Fl to Lake Okeechobee last week and was amazed with 41.9mpg for the 60 mile run. Air temp was 80, speed didn't exceed about 60mph. Of the 60 miles 5 or so was city driving.

Overall, since I acquired the vehicle it's been averaging about 31.5 with mostly local driving with a fuel injector problem that has not been since resolved. And recurred and fixed and then a NO2 Sensor, fixed and then a fuel injector problem again. And now the dealer is buying the car back.

jrct9454

35-39 mpg at highway speeds [65-75 mph]

27-30 mpg in suburban errand-running mode - multiple stops, some freeway

23-25 mpg in stop-go urban situations, which is pretty rare for us.

Overall: just about 31 mpg for the first 2800 miles. I couldn't be happier.

miked807

Hi everyone ....
2104 GLK250BT (just about every option) AND CURRENTLY on BIG ROAD TRIP.... and on board....with lots of stuff (back has a STD MB Tow pack (receiver only) thus we have a BACK TRY AND 2 BIKE RACK.

Done about 2800+ miles and we getting 33-41 mper gallon. (sorry haven't switched to Lt/100miles even though we in Canadain side ,,,eyh! :P:P)
Great miles for 2.0 engine - ... for this MB

Peef

4200 miles - mostly rural backroad travel. Averaging 29.4 MPG so far in brutally cold weather.

twinturba

I started using fuelly to track the mileage in my commuter car (FR-S) and started tracking the mileage in the baby bluetec on there as well.
So far 28.8 mpg on the first two tanks. For comparison I was only getting 21.3 mpg average over a 2+ year period of my ML350 Bluetec ownership. This is the main reason for the downsize, i use the MPG more than the extra space.

Luxferre

I just picked up my new 250 2 wednesdays ago. I've gone through about 1000km since
534km for first gas up and I was getting about 9.63L/100KM and
574km second gas up I was getting about 8.5L/100KM

H42

We are averaging 36 mpg commuting 65 miles per day round trip in our GLK 250 bluetec. Very impressed so far.

RSNovi

I did my first hand calculation using different fuel pumps at 1200 miles. Most expressway driving doing around 80 MPH I got 31.7 MPG. Computer said 32.5.

Chris

Rdub

To answer the question directly, 6.093 L/100km, 38.6 mpg (128 US gal, my first tank full 509 miles 13.2 gals/17.4 gal tank) Because of gentle break in (speeds 75 mph and under), but fairly aggressive RPM (up/down to redline, paddle shifted) , I would expect/swag a drop off of 13%, or more regular 33/34 mpg. Casually, a computer screen high was 41.8 mpg. For me and this driving environment, driving to post this 41.8 mpg would present two safety issues: 1. road hypnosis 2. artificially created bottle necks. To make two halves of a manufactured house (WIDE LOAD with front middle and real scouts) going to the job site pass me is also not real good. I am routinely passed by highway patrol on the prowl breaking this thing in @ 75 mph.

Probably an important part of the comparisons are one's expectations. Needless to say, the comparison is apples to apples to bananas. Fuelly.com lists the most likely highest mpg for the 2008 Audi A4 @ 24 mpg. What do you get? How much better mpg (whatever your next vehicle) would make one satisfied? Further, the mpg SEEMS to take a back seat to an unknown list of important options. So for example, the MSRP for a GLK can go from $39,000 to a tad under 60,000. Again it is unknown how that compares to an Audi A4 you would be satisfied with.

So for what I can glean and swag, fuel mileage would consume 1,042 gals vs 758 gals or 284 gals a year saved.@ 4 per gal that is app $1,138. or app 95 per month savings.

If you are getting reimbursed for auto expenses (per mile rate or actual expenses) , I am swaging the Audi is a keeper.

If you can apply the US IRS section 179 (business) rules or another country's equivalent, the full amount (for a new GLK 250) can almost be expensed the first year put into service. This of course is not tax or charted accountancy advice. But those are the folks to ask for that portion.

MPG UPDATE:

38.43 mpg for 2nd filling (8.3 gals or a tad less than half full/ empty, depending on one's viewpoint. 319 miles, aka why even bother? )

roscoe108

Is that mostly or all freeway driving?

roscoe108

That sounds close to my experience so far. I would only amend those numbers slightly for my situation, even though I bought my GLK250 just before Christmas and my numbers are based on a very cold first 3 months and much warmer past one month. Note that I am measuring fuel pumped in against fuel burned. I do not rely on the trip computer or fuel consumption readout as it is a bit off, I think.

- 22 mpg (10.7 l/100 km) stop-and-go traffic/short trips where engine doesn't warm up
- 26 mpg (9.1 l/100 km) regular suburban driving
- 35 mpg (6.7 l/100 km) back country roads at 62 mph (100 km/h) with some stopping
- 40 mpg (5.9 l/100 km) freeway cruising at 70 to 75 mph (112 to 120 km/h), no stops

Cheravian

Recent trip S.C. to Florida; 1,105 mile round trip 34.8 mpg which included 15-20 minutes stuck in a traffic jam on the way down. The trip home I got 35.9 mpg driving 80 mph on the interstate and 65 mph on secondary roads.