Checking the rear window heater

When the rear window heating system is turned on, after some time, the area with visible tracks should be free of plaque or ice.

In case of malfunction, first check the fuse in the fuse box.

If the fuse is good, check the tight fit of the wire lug by turning it to the left and right on the rear window, if necessary, clean it of corrosion products.

If, nevertheless, the rear window heating system does not function, check the integrity of the supply wires and the operation of the switch, as well as the switching relay, see 20.4.



If the heating lines are broken, conductive silver lacquer helps to restore their connection. To do this, clean the damaged area with thinner or ethyl alcohol.

Glue the torn place on both sides with adhesive tape and apply silver varnish with a small brush.

Leave the varnish to dry at about 25°C for 24 hours. You can warm it up with hot air. At a temperature of 130°C, the varnish dries in approximately 30 minutes.

Attention! Do not turn on the heated rear window until the varnish is completely dry. Do not use gasoline or other solvent to clean the damaged part.