High Temperature,

[Nicolas Missoni]

I have a 300 D 1981, and after I changed the thermostat, rebuilt the radiator I still have a high temprature, aprox 96 F? ( the new thermostat opens around this temp.)
do you think is normal?
can be something else I haven't done

 

[dave elcome]

This seems a bit high, what type of fan coupling does your car have?, and have you checked that its operating correctly?

 

[Arnie]

Have you checked the pump? Sometimes the impeller blade wear away.

 

[Matt Crooke]

Not owning a diesel im not sure if im being correct, but thermostats usually open around the 80-85 degrees mark. If yours is opening at 96 thats way too high.

 

[Arnie]

Hi,

When you say 96F (C), is this the temperature rating stamped on the thermostat, or is this from your own experiments?

Did you buy a genuine replacement thermostat from MB?

I think that MAT is correct and for a diesel the rating should be lower (I think I have an old one and I'll check).