Guys

I'm currently the proud owner of a 1983 300SD, low mileage. About 91K if the ODO is to be believed. Previous owner records more or less confirm the mileage.

I've done a reasonable amount of work to the car - new timing chain, rebuilt injectors, new Bilsteins, brake re-build (rotors, pads, parking brake pads), rebuilt CCU & monovalve fix, cruise control amp. Vac locking system works, cruise works, sun roof works. Upgraded lights and excellent quality tires.

The bad - erratic fuel sensor, seat pads on front seats need to re-done, rear window glass on the way out and rear window requires replacement, new seal and probably some mild corrosion repair as part of the job. A/C is half hearted at best and could need anything from a recharge to a new compressor.....

I now have a chance to buy a 1991 E300D with 140K miles on it. Totally rust free, garaged all its life, in a salt-free region, one owner, service records, timing chain, rad, water pump and all hoses just replaced.

The upsides to me are a slightly higher performance car and one that is better suited to mountainous, twisty roads. The w126 is a beaut on the freeways, less so on twisty roads. ABS for winter is a clear advantage.

What do you think - how does the 1991 E300D stack up against the tank like w126/617 combination? Reliability, durability, etc. My questions are really around if the newer car is harder to work on and more or less reliable than the old 1983 workhorse.

Thanks for your comments in advance