Thanks to all whom have provided advice.
As you can all suspect, I'm new to trouble shooting probs' with cars.
Your advice has lead me to research etc, the answers are coming, and things are making sense. And given I really enjoy my Subi, I feel I'm heading in the right direction in keeping it the way it needs to be.
All in all, mostly an informative place.

I've also stumbled across some posts where the shit is thrown out of the cot, and the replies insulting....very entertaining!
Stechnic seems like good specialist??