Top independent shops in town are:
Dieter's 619-234-8106
Black Forest
Mind Over Motorsports 858/693-9911
All German Auto (760) 738-4626
Extreme Motorsports 858-278-3988
I would not take the car to a dealer, they usually are not as familiar with the older models as the independent shops.
You can always send an email to
tech@pcasdr.org for their recommendations as well.