I just brought my 2004 s55 amg to Marco and having problems with the door, lock, trunk and anything pse related. I am one of does guys that would like to know what's going on my vehicle and so I did my research pricing for parts and if I can do this myself. From Mercedes chat rooms Marco is the only Las Vegas Mercedes Mechanic that explained about replacing the pse.
here is why i would bring my car to him:
1.) DoctorBenz has the STAR diagnostic system in shop.
2.) Marco is the mechanic that will be working on your car and also the person that will explain to you whats going on with your car.
3.) Marco does not overcharge you with parts or labor. (his parts are about the same as pelicanparts.com)
Owning a Mercedes is not exactly cheap but finding a trustworthy mechanic is really really hard to find. especially if this mechanic only works on MERCEDES.