If you are used to the creature comforts of a newer car but want a MB diesel that is realible and economical I would suggest the 90-93 300D 2.5 Turbo... air bags..ABS...excellent car...and probably close to the MPG you are getting in the VW diesel....I drove one for 150K and replaced nothing except a glow plug regulator and the timing chain

good luck

Warren
1992 300SD 129K
Columbus Ohio