2015 GLK350 Base
Mike, thanks for your comments . I think the difference is your stutter was one you could feel, but your engine was running smooth. Mine is shifting OK, and the car is smooth, but until warmed up it's like the engine is missing (skipping). Maybe that's typical with these, this is the first V-6 MB I have driven . My other MB is a 500+hp sl550 that doesn't miss a beat - warm or cold .