1500 on the odometer. My 100 mile day roundtrip commute 95% expressway at 70 - 80. Hand calculated 32 mpg this morning.

Chris

 

Reviving this older thread to see if anyone with a newer glk 250 is getting the mileage people here are talking about.

I have a new glk 250 purchased in Toronto at the end of April 2015. I have about 17k on the vehicle and consistently getting between 650km - 700km before the warning light comes on. If I do a long trip the mileage is a little better but I have only seen one reading in the 800's when I did a 5 hour round trip to muskoka. The rest of the week was city driving.

Spoke to Mercedes on numerous occasions and they seem to think it's normal. I was expecting what they told me when I purchased it which is 750 - 900 city and 900 - 1200 highway.

Any thoughts?

Tim

 

Hey Tim. That does seem low on the highway mileage. I get about 650 to 700 km in the city, mostly stop and go traffic. But cruising on the highway at 110 km/h, I can easily get 1,100 km from a tank. Sometimes closer to 1,200 km. So I am wondering if maybe there's something going on with your GLK. Have you looked at the obvious culprits like tire pressure, stuff like that? Are you filling up completely to the top? Anything that may be causing drag on your aerodynamics?

 

PS - I have about 50,000 km on my 2014 GLK. I've averaged 7.3 l/100 km (32 mpg US) over the past 12,000 km, about 50/50 split between city and highway driving.

 

Mine varies based on driving. I don't have a clue what the metric numbers mean or how they translate, but in very short haul city driving I'll average 31-32 mpg. With any highway driving I've gotten as high as 40 mpg at pretty high speeds, just under 100mph and I've averaged as much as 39mpg over 3000 miles. With combined conditions, between 32 and 35mpg. All these computations taken off calculator from mileage on odometer and pump measurements. Off the instrument panel there will be far less accuracy. Calculated from miles travel and the pump is the only way to truly check. Your driving style will also affect. Hard starts and stops will deteriorate mileage.

 

Bob338:

Totally agreed on how to take readings using fuel pumped in versus the odometer. But that being said, after 30,000 miles of doing just that, I've found that the mileage readout on my GLK is pretty darn accurate. I would say within 2% margin of error.

 

Understand. I found much more variance than you. As much as 15%, but those may be aberrations. Nevertheless, you never know if you accept the instrument panel and not verify it. Occasionally I've been exactly the same, but those aberrations give you no comfort.

 

I've done a dash vs pump MPG several times and mine is very, Very close. Generally I get 29-30 MPG in town & 39-40 highway. My best figure in 22,000 miles has been 46 MPG@60 MPH

 

Thanks Roscoe,

Tire pressure and filling to the top are all good. Where I vary a bit is on the speed; I usually drive from Toronto to Kitchener or Toronto to St. Catharines (100km each way) going around 120 - 130 km/hr. I may be driving the little motor too hard?

I've tried to put it on cruise control at 110 km/hr but it just seems like standing still so it doesn't last too long :-).

Do you have a 2015 model or have they not changed anything from all the previous years?

Tim

 

Sorry to hear about you are not much impressed with the MPG of your GLK250. I can confirm that one might be dreaming of ever getting from any vehicles' those published MPG!! (well until USA sorts out this VW's 2.0 diesel engine mess!)

I had a 250GLK-2015 ordered oct 2014 - fully loaded + full lather; delivered Jan2015 HOWEVER I only used it for around 5k miles before handing it BACK TO THE DEALER (under LEMON LAW) and used that money to buy a Q5TDI(3ltr). Since at the time of ORDER for my GLK; Audi didn't have the Q5 in Deiseal - and we didn't want the Q7 to drive around on our LONG JOURNEY (round trip around America's - a long 6 months road trip! and thus settling for a GLK250)


The GLK never gave us anywhere even remotely close to what the published MPG - best we got was in Canada side(due to NO CHEAPER GRADE that is sold in some USA places - was 36-38MPG. I saw the same MPG with my Company Leased AUDI (S8TDI 4.0) in long distance driving in USA (before retiring)....We saw much better MPG (close to 40) in NS & PEI region) ....before the switch (to Audi)happened!! We mostly drove all day time hours and mostly stopped driving around 3-4pm depending on hotels. We never drove at NIGHTS due to unsure & uncomfortable feeling with GLK ,,,,,,,,,
What with the constant ADD BLUE WARNING & "no spare tire"(scary on back roads of Northern Canada side of trip where no phone nor a soul in sight for 100s of miles) AND we wont even talk about various 'things' falling off during the GLK during the drive;ADD BLUE filler nozzle/ in the most crazy place etc. ONLY thing I wished AUDI had that (miss) was in GLK = BRAKE/PARK/HOLD feature!!!!


We drive the balance of our JOURNEY?ROAD TRIP (all the way to Panama) in the Q5TDI and got near close to 41MPG (with the same luggage etc) and NOT once got that stupid ADD BLUE WARNING,,,,(and the filler nozzle is next to the Deiseal filler cap!!!) Wow !! what a enjoyable experience to deal with AUDI dealerships and they even washed and vacuumed the inside for free at every service (even in Mexico!!) OH...BTW ... the best surprise (apart from finding out the Audi fully loaded was cheaper then fully loaded GLK....... the WARRANTY ?SERVICE FOR AUDI is valid for WHOLE OF AMERICA:"S - US/CAN/ etc ....!!!!!


I am very used to Deiseal Engine cars/trucks/Suv's and mostly drove those most of my adult life - No "petrol" engine TORQUE ever comes close TORQUE .... and with treaded in the Q5 after the trip last month for an Audi-S8TDI 4.0Twin Turbo! .....WOSH (my other half's chosen word)!!

Happy Holidays and Safe Driving ! one happy driver of Audi TDI ...lol.."wosh" !!!

PS ... thanks everyone for your help with and during the brief foray into the MB diesel ; I might not be using this forum anymore since I don't really have a GLK now.....

 

Hi Miked807,

I have to say the the car has been reliable so far although I haven't done anywhere near the driving you have.

It's in the dealership at the moment so that they can replace the diesel particular filter which was causing the check engine light to come on. Wondering if this has anything to do with the mileage if getting weird readings from the environmental side of the computer?

In any case it's not a huge problem but was expecting more out of it. The car as whole is good with a the only other exception being the comfort of the seat. I didn't get the real leather so maybe that makes a difference. It's the same as my civics in terms of comfort but way behind my Chevy. Interestingly they gave me the little B200 while the glk is getting the sensor replaced and those seats have more padding and the mileage is actually quite good. Car also shuts off at lights....hybrid?

Tim

 

avg is 6.6l/100 over last 10000km (includes the KC trip)
avg was 6.8l/100 for the 10000km before that
My usual driving is 70km 1 way rural hwy and then stop and go hwy and city driving.

Trips from Toronto to Ottawa and back (cruise set at 120kph) result in 5.9 consistently.

Recent trip from Toronto to Kansas City saw 5.4l/100km over the 3600km trip. Set speed to 75mph and just used cruise.

VERY happy with my 4400lb mani-van(as my friends like to call it).

 

Thanks shakygrouch,

What does that equate to in terms of km/tank? How many km before the reserve fuel light comes on in a regular week?

I'm usually at the pump between 600 - 650 km within the city limits. If I do a few trips out to the Kitchener area I'm filling up at around 700 - 750 km (includes 2 long trips 250km/day and 3 city trips 50km/day). If I do the rare trip out to Muskoka and back I'm at 850 km (single trip there and back and then all city driving for the rest of the week)

All of these are based on the reserve fuel light coming on. I believe there is somewhere in the 100 km range left at that point.

Tim

 

Not entirely sure, i stopped paying attention, just fill it up now when it needs it.

If we do the math on a 60L tank 6.8L is just shy of 900Km between fill ups and that seems about right for my drive(obviously some more some less).

I drive the glk like I drive my electric smart, slow and steady to speed, then lift and coast. I'm not hypermiling, but i'm not driving spiritedly.

 

Our 2014 GLK has done just over 20k km (12.4k miles). We don't do much city driving in Canada because we use our older cars for that. In winter, we go South and do more of a mix of highway/city.

Last time I looked, I think it said 7.3l/100km since last reset (about 6500km)

In summer on a 400km round trip to Toronto, I might get ~6.5. But in winter, on 1500km trips with no city driving to South Carolina, we are over 7l/100. Winter fuel, higher highway speeds and some hilly areas don't help.

I look at it as a 32mpg (US) vehicle.

 

Hi Tim,
i have a 15 250 that i got with 7k in August. I live north of the city 7 go to the GTA 2 or 3 times a week. I usually do a reset when I fill up & was also miffed about the 650-800Km i get on a tank. My overall average is about 7.2l/100km. I do a combo of city & hwy (130+ km/hr on the 404 with ease) Overall I am happy with the mileage & torque. I do find that when i do not drive as aggressively as I usually do, the /100km # gets much lower. I would recommend this vehicle to anyone.

 

36mpg gauge (when I calculate, it is generally a little better), 400 miles, mainly freeway driving at 80mph+, a little city driving, and some stop and go traffic (and over a 4000' pass). Very happy.

Not to hijack, but the wind noise is very disappointing. Very quite up to 70MPH; by 80MPH it is very noisy and seems to come from all over (not wind specific). Frustrating; I would expect a Mercedes (even a small SUV) to have been properly designed for quite at high speeds.

 

32000 miles on the od average 34.2mpg. I live on a Island so rarely get over 55mph, and i live at around 1600' elevation.
Always carry a surfboard or two on top so it's not that aerodynamic....

 

Just back from spending winter in SC. As before, our fuel consumption on the two 1000 mile trips (there and back, all highway driving at or just above speed limit) were about 32mpg (or over 7L/100) Car not heavily loaded, but we do have roof box. In summer without roofbox, we do a bit better, but nothing like the mileage some here quote. GLK now has about 18,000 miles on odometer.

PS: We liked the $1.66/gal for diesel in SC! On highway we paid $1.99 to $2.45. In our part of Canada, diesel is about US$2.32/gal.

 

Did a one-way San Diego to San Jose California (400+ miles) drive which included about 30 minutes in stop-and-go freeway traffic, about 10 miles of in-town driving, and a few sections on I5 at 90mph (mainly around 80). Got 36mpg (very happy). I have checked the computer calculations against actual fuel pumped, etc. multiple times at fill up, and it is quite accurate in our car.

Only around town is 26mpg; a tank usually averages around 27-28 with mainly local driving.

 

I've had my GLK for 2.5 years. As I'm retired & have a 2nd vehicle, (Corvette), the
odometer has just over 12 thousand miles. Most of my driving is suburban, less than 20 miles round trip, and the calculated MPG is 27.6, which is within .2 of the dash readout. On the 6 road trips I've taken, 200-400 miles round trip, the dash readout
was 39-40 MPG. Not long enough for a couple fill-ups to allow a calculation, but probably close. The only vehicles I've had with better mileage had 2 wheels!
The mileage is lower in cold weather as they mix in #1 diesel to improve the anti-
gelling of the fuel. Lower BTU/gal = lower mileage. It's a shame that the min. cetane
rating shown on the pumps is 40, which is lower than the 45 Mercedes specs. I have
been adding ~5 ounces of cetane booster each fill-up over the last year to make up
the difference. Can't say that Ive noticed much difference, maybe better full throttle
acceleration.
The DEF usage is about 2.5 gallons for 6000 miles.
Overall... I'm extremely pleased with my GLK Blutek.

 

What with the constant ADD BLUE WARNING & "no spare tire"(scary on back roads of Northern Canada side of trip where no phone nor a soul in sight for 100s of miles) AND we wont even talk about various 'things' falling off during the GLK during the drive;ADD BLUE filler nozzle/ in the most crazy place etc. ONLY thing I wished AUDI had that (miss) was in GLK = BRAKE/PARK/HOLD feature!!!!

][/QUOTE]

We may have a lower population but in nobody's mind could NB or PEI be classified as "northern" LOL

 

One thing that is lower in Canada, is the DEF consumption. Apparently the Bluetec system doesn't work below 10C.

 

My 2015 GLK 250 diesel shows on the highway 6-6.5 liter, in the city 9-10 liter

 

Maybe I'm missing intentional sarcasm? If so, I apologize in advance.

DEF does freeze (at -11ºC) but does injection of DEF get halted during low operating temperatures? Once the car is started, the DEF tank is warmed up, thawing the fluid. I assumed that emissions control persisted even in winter.