Mechanically reliable thanks to proven Mercedes-Benz platform. Lots of electrical niggles such as random stereo issues, non-working rear spoiler, non-working roof on convertibles, and many smaller faults with lighting, warning beepers, keyless entry remote and battery. The transmission solenoid leaks fluid, causing the "check engine" light to come on, and requiring replacement of the solenoid. Leaks on front-right corner of the transmission can cause electrical issues too.
