I have a Xantia 2.0hdi Estate.   I have noticed the High Level brake lamp, and the heated rear window does not work.   The bulb looks ok on the brake lamp, and I can hear the heated window relay click (and the light comes on the dash) when I press the button for it.   Is there a common place where they may be a faulty connection for both these problems.   Any help  very much appreciated, thanks.