Worst fault was water ingress into the boot (was like this when I bought it, but didn't spot it). This resulted in the structural member under the parcel shelf corroding. Had to be sorted at around £2,500. Apparently not an uncommon fault - so check carefully in the boot. Look for signs of water damage on the boot carpet and stick your head in the boot and look at the space under the parcel shelf - not easy, but worth it.
Also had a new exhaust at £1,200 - but it was its first replacement at 105,000 miles.
No mechanical problems.
I ran it as an every day car and it ran flawlessly throughout the time I had it.
I switched from a main dealer to a Mercedes specialist - better service and cheaper.
Loads of modern standard extras - given the age airbag, ABS, mem seats, etc.
Sold it because the paint started to get tired and needed tidying up.
Missed it badly so I bought another one a year later (this year). Fantastic 1990 car with only 26,000 miles and 2 owners. Looks new and I can see no reason why I would ever want to sell it.
Surprisingly inexpensive to insure.
Buy one!
Please for this mans sake he didn't pay £1200 for an exhaust!??you can get a stainless steel one for £400 with life time (of the car that is) guarentee. on the plus side though this man knows his motors. this merc was the best mark they ever made and probably ever will. work on your merc, don't send it to a garage!you are getting ripped off!!if you work on your own car you will get a bond and understanding with it that will give you satisfaction and peace of mind when you have the kids in the back, you know it will stop and it won't strand you any were. happy motoring.