autoex

Hey guys, Audi newbie here, currently have an 8p A3 cabrio and a b6 A4 at the moment and the 8p has a few issues that I've been trying to sort for some time!

Firstly there's a coolant leak. Appears to be in the vicinity of the resevoir so I'm hoping it's near the tubingfrom the tank - wondered if there were any commonly known issues there / with the tank / anything else in that area?

Secondly the top doesn't operate and I get the ''roof cannot be used'' issue but I can't find a service manual anywhere.. I'm guessing it has to either be a microswitch / position sensor (but I can't find one yet?) or something to do with the hydraulics?

Roof operates manually if I unlock with the handle etc.

Wondered if anyone could point me in the right direction?

Many thanks!