I've just squirted the stuff on the jacking points (which were all in good fettle) as a precaution against rot. I've got most of a can left - where else would be a good place to coat which is easy to get to..
One thought is to pop the wheels off and coat the newish springs?
The underside is in...
Came across this site via a newsgroup posting. Quite a good introduction to the w210 models. [marred slightly by the porno messaging which has nothing to do with the site] http://www.eclassbenz.com/node/17