Broken radiator neck at 215,000 miles.
The raise/lower motor of the driver side seat failed.
Right rear window lifter broken (not uncommon).
Radiator thermostat wouldn't open. (easy cheap fix, made my car run much cooler than before too).
What a car, wow! Bought the car for only $1500 from my neighbor with 200,000 miles.
I just spent $300 for all new pads, new front rotors, and new break lines for the rear breaks from my local Mercedes mechanic. It is amazing how quickly the big beast stops!
Excellent highway car, but on long trips my back starts to hurt due to the worn down seat padding.
Not a good Chicago interstate car, runs almost 3300rpm at 75mph. The newer models have better gear rations I hear.
The engine stays happy with regular oil changes with Mobil Delvac 1300 super 15w-40.
Still gets about 450 miles to a tank on the highway, 350-400 in the city.
Words just cannot describe the 300SD. They run forever if you take very very good care of them.
I have an '87 300SDL and although at 75 miles per hour, it turns about 3150, it's torque convertor still has a lot of slip. At 115 mph, my car does 4250. This is when the torque convertor is locking up.
The newer cars have no torque convertor lockup.
Don't be afraid to push the car. If you can stand the noise, running a diesel hard is the best thing in the world for it. Unlike a truck diesel, the maximum redline on your car would be higher: About 5050 +-50.
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