The side window glass can delaminate. If this were to occur, replacement of the affected window would be necessary.
Car Problem Reports
Mercedes-Benz CL55 AMG Side Window Glass May Delaminate
Mercedes-Benz CL55 AMG Problem
Average Mileage: 50,500 mi (46,000 mi - 55,000 mi)
passenger door window glass delaminate
Visitor, 2003 Mercedes-Benz CL55 AMG, 46,000 mi
both front side window are delamanated