Hi Martin!
First of all welcome on board!
my first Impreza, is a GT from the 99
Good choice
(do own a MY99 wagon)
I think english is not the main issue here (even though this is a german board and we urge people to write in German).
Your request for a "cheap and good mechanic in Berlin..." is the point. There is no common solution and there is still discussion going on where to go for service in
here and
here.
Because Subarus and especially the turbos are rather rare on german streets good service is not that easy to find.
Some even advise you to drive 100Km for repair (sometimes not possible
).
Do you have experience in working on cars? May be it's an option to do typical service by yourself.
Where are you located? There are plenty of DIY workshops in the city -
Drei-Tiger being my favorite atm.
If you like to have further talk send me a PN with your phone number and I'll get back to you.
Where to buy basically depends on the parts needed.
There are selected shops that deal from basic stuff like brake pads up to quite heavily modified engines.
Sometimes even direct imports from Japan and USA are an option. UK is also great for parts.
As a starting point have a look at
links (not complete, if in doubt ask in advance).
There have been meetings in Berlin at the
Meilenwerk on occasion.
More national and international meetings can be found in
http://www.subaru-community.com/treffen/…al-und-national
Regards
- Matze -