[quote=Adrian E;38390]what's the part number, as probably easiest to look that up in Etka and see which page it relates to!

QUOTE]

Part no: 4D0 919 283

Looks like it's either in the boot or behind the back bumper - image attached may help +++

Adrian

More helpfully, here's the instructions from elsawin to confirm it's under the CD changer in the passenger side storage....

Adrian

Mines definitely down there, though it's a PF model. ;)

Many thanks both of you.

David

Moisture...moisture...moisture. Intermittent faults and operation...

I had a similar issue with my '98 S8. The controller turned out to be faulty, there was moisture once it was opened up. I purchased a used one, and it was fine. I dried the old one in my airing cupboard, in a cardboard box filled with silica gel.

I re-fitted the original controller a week later, and it worked perfectly, till I sold the car almost a year later. I sold the used one on eBay for much more than I paid for it in the first instance. ;)

That is a good point - the intermittent fault only occurred when the temp was 6decC or below. Having fitted the "new" the problem seems to have gone - but it has been warmer. There was evidence though of water / moisture ingress through the aerial grommet into that area of the boot although the inside of the controller was dry. I will keep the old one safe and dry till next winter!