The insulation at the sunroof and on the inside of each door window glass can peel off. The loose insulation will then scrape the sunroof or window glass as it is operated. Replacement of the damaged insulation will be necessary to correct this concern.
Insulation Near Sunroof/Inside of Doors Can Peel Off on Mercedes-Benz ML430
Average mileage: 159,500 (120,000–199,000)
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Soft glue would coat the outside of the windows after they had been in the down position. Insulation had peeled off the inside of the door.