No electric motor stops on seat movement
Speakers wired up in series so you cant fade sound front to back to front, etc
Outdated radio/cd player that doesnt do much else
Wheel rims that stand proud of the tyres
Washer water container that overflows inside wing panel
See posts on "Water leaking in causing rusty doors"

If it had a Merc Badge would these things have been cured by the factory
at some time between 2003 and 2008?