The MB stuff is good - it is made by Mequiars! It is available at your MB dealer, or save some dollars and read Lee's FAQ on detailing in the DIY tab at the top of the page, check out the Mequiar's link in the detailing section, then get the Mequiar's product at autozone, Pep Boys, etc. Click the '300E' button in my signature to see how this stuff worked on my '87.
2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)
Click to see 87 300E