First Time MB Owner

I recently joined the ranks of MB owners with the purchase of a 1991 300CE with less than 25,000 miles.

What should I check for regarding age and/or lack of use deterioration as opposed to use deterioration?

It had spent all of its life in downtown Chicago in a heated parking garage, but it was not an easy life. There are plenty of door dings, chewed up wheels, and a sunroof dent that is not terrible but annoying.

I'm (almost) looking forward to doing some of the maintenance and maybe repairs myself with the help of the good people here. This will be the first car where I have done anything more than oil, filter, and plugs.

Thanks.