These guys are crooks
He charged me $110 to diagnose my 02 Mercedes C320
I came to them with AC dash vent problems
After a day he told me He needed to replace all 10 stepper motors as well as my main AC control module total bill would be about $3800
I then took it to a Mercedes only shop where they diagnosed the problems
I found out that only 2 out of 10 motors where bad and main controller was fine
I paid a third of Sun Auto Services estimate
Its my opinion he didnt want my busi ess probably because they couldnt handle that caliber of vehicle
They only wanted the diagnostic fee knowing they weren't gonna get the job!
Stay clear of these know nothing scammers!