MB Maintenance Booklet has list of maintenance jobs.
This is for 1992 300D. For 300E, 5000 -> 7500, I guess.
0. routine checks.
1. lubricatioin service (every 5000 miles or x year)
2. 15000 mile maintenance (every 15000 miles or x years)
3. 30000 mile maintenance (every 30000 miles or x years)
4. every 2 years
5. every 3 years
6. emission maintenance
You can go here to get rough idea:
http://www.edmunds.com/maintenance/MaintenanceServlet
The list of jobs here is different from MB Maintenance Booklet.
The price is also unreal (or should try more to find cheaper independent?).
Some dealer web site has Service Special.
The list for each job (30000 mile maintenance for example) is different dealer by dealer. Sometimes same dealer has different list (e.g. Herb chamber. Their Service Special can be reached either through herb chamber home or MB usa. Each has different list under same name, e.g. 30000 mile service.)
New MB models need A service and B service instead of 15000 service and 30000 service.