The surrounding plastic and insulation around the heated windshield washer bottle hose could melt due to the sheathing material of the electrical connection overheating.
You must contact and visit a Mercedes-Benz dealership to perform recall repairs on your Mercedes-Benz vehicle. The notification of known owners of affected vehicles began during January, 2001. If you wish to check to see if your vehicle is included, please contact one of your local Mercedes-Benz dealerships. They will also check for any other incomplete recalls on your vehicle. For best results, be prepared to provide your Vehicle Identification Number (VIN) to the service department consultant you speak with.
Body, Interior & Misc.
THIS COULD CAUSE THE SURROUNDING PLASTIC AND INSULATION TO MELT.