My '89 300SE is very reliable. No major problems
since almost new (1990-used).
I use it to travel to San Diego from San Francisco
and it climbs a steep pass (grapevine) with 4 people
easily. 17-8 MPG City, 23 hi-way.
Only has a sublime uneven idle which I have not bothered
with yet.
The clearance under the car does not forgive uncivilized
non-flat roads (like rain ditches!).
Have fun.

__________________
1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
********************
1979 240D 140Kmiles (bought for parents) *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD