My 2013 Glk350 was stationary and I was parked in my parents driveway in Illinois. It was nighttime and I went to go close the panoramic roof since I was going inside and it was lightly raining. Temps outside were mild since it was May 27, 2016. When I went to close the roof I heard a crunch sound but did not notice it was shattered. I closed the sun blind and it wasn't until I opened the blind the next time May 28, 2016. My sister and I both looked up and noticed the glass was shattered. The rest of my family also noted the damage also and we took included pictures. I called mb usa at 800 367.6372. Adam the rep I spoke to said I needed to take it to the dealership to see if it's part of a recall but when they looked it up there was no recall for my VIN"? I followed up with vanessa at the 800 and she said the same that svc guy did at dealership. I escalated my complaint for resolution, no objects or rocks, etc came in contact with the glass and the track was clear of debris. I looked on internet and noted several similar incidents of the glass shattering and some with glass exploding out or imploding?"! mb is not claiming responsibility which I do not understand! I have escalated again and I am still waiting to connect with mb usa to discuss since this is clearly a defect. It doesn't matter whether you're stationary or moving this is a serious hazard. I had to get this repaired and cost me upwards of $1600 out of pocket.. but has cost up to $2K per incident. Come to find out this is not only happening to other car models and so far there are complains filed against Kia and Nissan.

- Phoenix, AZ, USA

Driver's side wiper leaves a wide water streak when leaving the A-pillar, blocking driver's vision. Sent vehicle back to two dealers for 5 times. Each time the dealership changed a wiper blade, but problem remained. A new mb factory windshield was installed in 2014 summer due to glass damage unrelated to this defect. After that, problem remains. In November 2014, a service manager cited a publication from xentry, topic number LI82.30-P-059239 (C), suggesting that it's a common problem existing on all passenger car model series and there's no technical remedy available, thus refused to provided any further warranty repairs. A video describing the defect is on youtube: Https://www.youtube.com/watch?V=4nttrar-zdo

- Needham, MA, USA