Sorry, I have not visited the site for a while, since LA is kind of big, if you are close to the West Side or the South Bay, you can check out Auto Meister :
- 1301 N Sepulveda Blvd
Manhattan Beach, CA 90266Manhattan Beach - Phone number(310) 545-0037
Ask for Robert or Randy. They work on aircooled VW & Porsche cars and it is pretty much hole in the wall, but they do a great job. It is easy to miss the shop. It is pretty much in front of the Target at Manhattan Beach. The price is reasonable. I like to think as you get a Porsche mechanic for a VW price.
As Jim said, if you are closer to Inland Empire, Larry Jowdy is the man. He has worked on my car a few times and every time he did a great job.
Good luck.
Eddy