OM603 Running Temperature

[frankstallone]

I am sure this has been discussed but I am having trouble finding a situation close to mine in the forums here, so excuse me if I missed a thread just be kind and shoot me a link.

On my 87' 300TD the car's temp gauge I have read should never reach 100 degree's C. Now that it has been getting hot and I have been using the A/C I want to know if this is a sign that something needs to be done. The car is not over heating.

With the A/C on and on the highway the car is just a hair above 80 degree's C. When I come to a stop at a light it gradually goes to just under 100 degree's C. It has never gotten to 100 degree's and if I ever see it there I have been told to pull over and shut the car off immediately (sound sain?).

Anyway its not like just a hair above 80, I come to a stop, and it SHOOTS up to 100; it is gradual but I am wondering if that means I need to replace the fan clutch, or that I should look into something else.

You guys are very knowledgeable and I trust your opinions, I want to keep this car COOL, and I was thinking about getting a small intercooler fabricated onto the car just for a piece of mind but that is a whole other thread.

Let me know what you guys think, is it normal or should I start looking into things?

Thanks for looking!,

Franksta