1999 WDB2200652A030044. 95000 miles. Runs beautifully but has a number of electrical "gremlins".

Seat Heat switch (level 1) on the passengers seat illuminates when seat is OFF after a "start". If pressed seat turns ON. Light is also on when ign key is removed but goes off at some point since battery doesn't drain.

The following are additional intermittent gremlins and will be addressed in separate threads. Identified incase of linkage.
1. Electric steering column adjust. Message centre warns "Do not drive. In exit position" when it is not. (It had however been in this position) Eventually cleared after 40 miles and restart.
2. Radio and Climate Control displays go VERY dim.
3. Air suspension, EBA and one other "Startup" check fail warning. A restart usually clears and all seems OK
3. Strange rattle from area of gearbox under car. Air suspension pump relay chattering?

Bad Earth? Bad relay? Where are the various connection points?

In anticipation of your ideas and wire diagram. Thanks. Stuart