Hello guys again...

You chaps have saved me a fortune over the last few years, and I'm hopeful you can do so again...

As per the thread title, I have an 05 allroad 2.5 Tdi and have obviously had the usual problems that most have had, but this is new to me, and despite searches, I haven't seen a solution to this baby!

The headlight leveling warning and accompanying "BEEP" on selecting gear at start up that drives me mad. I've done a quick scan under the hood, but see nothing wrong.

Brief history. This came on once before some months back while driving in absolutely biblical torrential rain, but went off as soon as it stopped raining… Now this time, it came on after a night of torrential rain, but has remained on. Both headlight units have some moisture retention issues.

The headlamp units, do not appear to adjust (up/down) on start up as before, and am supposing that this is the issue. Can somebody please steer me in the right direction about where to start looking?

I am a mechanic by trade, though several years away from the trade professionally, so would be willing to be adventurous!

Any help gratefully received!