Last month I visited my sister on the east coast and got to spend some time driving their 2014 GLK250 BlueTEC (X204) and 2014 E250 BlueTEC (W212). There were a number of surprises that I wasn't expecting.
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There were a few improvements, again I should have written this right after my seat time, so I'm probably forgetting something. The W212 analog-style fuel & temp gauges are a welcome fix to the W211's truly horrible bar graphs. The 204 and 212 both default to displaying vehicle speed in large numbers in the center display, which is fabulous... the 211 required pressing a bunch of buttons (every time you start the car!) to display MPH in the center, and the number is small & not that easy to read for old farts with sub-par vision. Factory backup cameras are nice. Overall there wasn't much on the 212 which made me think "wow, I sure like this better than the 211!". Not that I own a 211, our newest MB is still a 1997 W210.
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1) MB moved the cruise control stalk BELOW the combo / turn signal switch! I mean, how stupid is this? The cruise stalk was in the same location for at least 3 decades. Really, really annoying when you are going back & forth between an older MB and newer. Don't think I'll ever get used to this. What a colossal fail.
2) The cruise control stalk has a new "feature" which took me a while to figure out. There is a detent in the stalk travel: move the stalk slightly it increases / decreases 1mph, but push past the detent and it changes ±5mph. Not realizing this, several times I was trying to figure out why the car was going way faster or slower than intended. Dunno how I feel about this one, I might get used to it, maybe. You have to be careful to push quite gently if you expect the usual ±1mph change.
3) The shift lever was moved to the column. I don't like this, but whatever. Seems the column shift is on many (most?) models as of roughly 2010, including the 164/166 chassis that I might own someday. The problem? The functionality is backwards! Push UP for reverse, push DOWN for forward. Kinda like relocating the cruise stalk, what the hell were they thinking? I found the backwards shift pattern infuriating.
4) If you are reversing and open the driver door with the vehicle in motion, which I do all the time when backing into a parking space... the transmission slams into PARK. omg, what sweet hell is this? I eventually figured out you must FIRST open the driver door, THEN select reverse (pushing upward, pffft), and ignore the dire warnings that you might die... but it will allow you to back up with the door open.
5) If you select Sport shift mode (S), this resets every time the car is shut off and next time it's back in Comfort (C). I had to select Sport every time I started the car. Why isn't this setting persistent? Google says it's related to EPA regs, since the EPA ratings are in C-mode, it must default to whatever mode the EPA tests were in. Ditto for the annoying auto start/stop function which must be disabled every time you start the car. I wonder if these settings are also persistent on ROW/European models, or if you ROW allows you to select a setting that will remain persistent.
6) IIRC (my memory is foggy 6 weeks later), I was not impressed with the E250 shifting at times (722.9 seven-speed). It was usually ok, but sometimes there was an unexpected harsh shift. I think it was related to slowing down and accelerating, like after you turn onto a side road. I expected better from a fancy electronic transmission that's supposed to read my mind. Car has 110kmi and supposedly had the transmission serviced at 90k.
7) The E250 has "dynamic LED" headlights which seemed ok on low beam. But when selecting high beam, there was a loooooong delay before high beams would engage. Then it appeared like a motor moved something, and the beam gradually raised upward. Very bizarre. And I hated the delay. Not sure if this is another "feature" (maybe adaptive high beam assist?), also not sure if it could be disabled. High beam illumination wasn't great either (see memory note above). I'd need to drive at night again and pay more attention, I only spent 30 mins driving this car at night. It seems LED's are the "upgraded" lights vs bi-Xenon? The 2014 sales brochure isn't clear. IIRC, "Intelligent Light System" (ILS) stamped on the headlamp assembly, but I'm not sure if ILS is enabled, or if that is a Euro-only thing enabled via software like on the W211? My BIL commented that he thought the X204 bi-Xenons were visibly better than the W212 LED's. I wasn't there long enough to compare. My initial impression of LED's was "meh". Maybe newer ones are better. It wasn't like the W211 bi-Xenons with ILS (enabled via SDS Developer Mode), those 211 ILS lights are amazeballs.
8) One or both of cars had active lane-keeping assist, which didn't work half the time (I purposely drifted across painted lines to test), and sometimes when it did work, the response was more annoying than helpful. I might get used to it, but could probably live without it. I didn't get to try the Active Park Assist. Also didn't drive enough in traffic to play with Distronic.
9) The seat belts on the 212 do a weird pre-tension thing as part of the PRE-SAFE® convenience function. My wife absolutely hated the pre-tension, it made her feel like the belt was going to strangle her, inducing brief panic every time. It didn't really bother me, but I am curious if this could be disabled or not.
There were a few improvements, again I should have written this right after my seat time, so I'm probably forgetting something. The W212 analog-style fuel & temp gauges are a welcome fix to the W211's truly horrible bar graphs. The 204 and 212 both default to displaying vehicle speed in large numbers in the center display, which is fabulous... the 211 required pressing a bunch of buttons (every time you start the car!) to display MPH in the center, and the number is small & not that easy to read for old farts with sub-par vision. Factory backup cameras are nice. Overall there wasn't much on the 212 which made me think "wow, I sure like this better than the 211!". Not that I own a 211, our newest MB is still a 1997 W210.
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