"Most of my driving is long distance (1 to 8 hours a trip) with very little stop and go city driving. Valve cover leak that had to be repaired 3 times before they got it right (45k). Transfer case leak at 49k. Constant bulb burnout in all lights (at least 3 times in the front lights and 6 in the tail lights). at 80k I'm now told I need a new transmission/transfer box at $6,000+. To top it off my seat belt stopped working two days ago.
Not a very reliable vehicle. I expected better of a MB as a first (and last) time buyer. If you buy it make sure you purchase the extended warranty."
"Had a 10 and traded it for an ML350, the interior was very lacking but the 13 interior is much improved. It is a perfect size for me and a pleasure to drive would rate it highly except for ECO Stop/Start system. I drive Company Hybrids that do this all the time and it is truly not noticeable however the GLK is. It can be switched off but ECO defaults on every time you start the car and this setting can't be changed. Unless this default is changed I would not recommend the GLK."
Pros: "Mileage, torque, practicality, fit and finish"
Cons: "Rearview camera, push button start should be std"
Likely to recommend this car? (1-10): 8
"Have been driving the GLK250 since the end of June '13 and have had no major complaints so far. Zero problems (mechanical or electrical) encountered and it's simply a solid vehicle overall. Have been averaging 30-31 MPG after 5 fill-ups in 80/20 Hwy/City driving. That's from my own mileage calculations but frankly the on-board trip computer is not too far off (within 0.5-1MPG accuracy). I'm not exactly a lead-foot but I don't drive like a granny either (I'm 28 years old). This thing just eats road imperfection for lunch - I live in the NE region so there is plenty of that around. Can't wait to test out the 4Matic performance in the snow in another month or so.
TORQUE - loads of it (369 ft.lbs) from 1800rpm and up. This makes the car feel much peppier than it actually is (only 200HP for a 4200lb car). This is my first diesel and I'm already addicted. Fuel economy is just awesome for a vehicle this size. Transmission is very smooth - shifts are almost undetectable. (The 9-speed currently being developed should be even better when it debuts within the next year or two.) Column shifter seemed very ancient at first but then I started enjoying the extra space made available because of that.
Brakes seem little soft, backseats could use a bit more room, rearview camera and push-button start should come standard, navigation/infotainment system is in dire need of an overhaul/upgrade, both visually AND functionally. Power liftgate and pano roof should be selectable a la carte instead of being bundled with an expensive package. Wish it didn't come with run flats (or, in MB terms, Extended Mobility tires) but the ride is perfectly acceptable to me (I tend to prefer a stiffer ride). They are just expensive to replace down the road."
Pros: "handling, interior, bluetooth features, ride, eco"
Cons: "can be a bit pricey, needs more cargo space"
Likely to recommend this car? (1-10): 9
"The combination of quality, luxury and comfort makes for a great overall package. It drives like a car but provides more space and versatility. It wont blow you away with its mileage but what it gets is respectable for the 300+ hp it gives you. It is an incredibly smooth driving machine. The eco stop start feature has far exceeded my expectations. I thought I would be able to notice it every time the motor shuts off but if the radio is playing and you go straight from brake to throttle it takes off without a hitch. However in stop and go traffic it is noticeable. However, with the touch of one button you can shut it off. It handles beautifully in poor weather. The blue tooth connectivity works flawlessly likewise with the audio streaming. Great features! Much better interface than my Chevrolets. If you forgo on many of the "extra" options and just get what you want, it can prove to be a very good value for the combination of quality and luxury that it provides. Overall a great buying decision I feel. Very close to purchasing an Infiniti but I am very happy with the decision I made."