My driver and passenger side window is developing spots. I found the many owner of this W220 S-class Mercedes Benz have similar problems. Dealer (caliber motors) inspected and informed me that the window started to de-laminate. Since my basic warranty ran out at 50,000 miles I have to put up the bill for the repair. My car is currently at 61K miles. Only 4 year old. The front 2 window delaminating is not my fault but a defective part. Windows are not a wear item therefore it should not fail or in need of replacement before the life of the car except in the case of an impact. Cost of replacement is substantial.. cost can exceed $700 per window for parts and labor. I feel this is a defective part that may become a visibility safety issue if manufacturer refuse to take responsibility to replace. Car owner may most likely not change the window due to cost issues.

- Ca, CA, USA