Rear window heating test

With the heated rear window switched on, the glass field with visible conductors should be free of fogging or ice after a while.

In the event of a malfunction, first check the condition of the fuse in the fuse box.

If the fuse is in order, then check the reliability of the contacts of the plug connector at the rear window, if necessary, clean the contacts from corrosion.

If there is still no heated rear window, check the wiring, switch and switching relay.