My direction dial broke first so I climbed under the dash and set it on the window setting.
Then the heat control went and it was set on HOT. (Temp I just set it to warm in the engine bay while I sorted it)
There are shed loads of different controllers!!! Get yours off and note down the part number on the back. I found a guy on fleabay who had loads but not mine (my v reg was too old for his stick).
In the end I bought brand a new controller AND control wires all in for just under £90 from VW. lot of money but it works now. Pretty easy to fit (one a bit fiddly though).
If your lucky enough to find your exact controller I would defo recommend you change the control wires anyway (about £3 each), its those that usually get kinked and cause stress on the cheapo monket metal controller