1985 Mercedes Benz 380sl Repair Question
Topics covered: Thermostat, Coolant, Engine.
Mileage: 76,000 miles.
Mileage: 76,000 miles.
Asked on March 31, 2012
Does my 1985 mercedes benz 380 SL convertible run hot on the highway at 70 mph as the temp. gauge maxes out at around 98C and varies down to about 90C to 95C. I just had the coolant and thermostat changed and the car still runs at these temperatures. Th
Does my 1985 mercedes benz 380 SL convertible run hot on the highway at 70 mph as the temp. gauge maxes out at around 98C and varies down to about 90C to 95C. I just had the coolant and thermostat changed and the car still runs at these temperatures. The temp. gauge I know "sticks" sometimes because I can pull back and release the break release and the needle drops back down some. I've been assured by my mercedes tech. that this is normal for my car and even in hot weather with the air on, the temp. gauge might run over 100C.
Answer
Replied on March 31, 2012
running it very hot can cause internal engine damage. i would get a second opinion on the true temp.
the radiator may be clogged causing this condition.
Roy
Replied on August 23, 2012
Make certain the replacement thermostat is the proper one. There are two different types and only one performs correctly.