Hi All,

Can someone please explain to me what is the normal operating temperature range and when it is deemed to be an overheating issue.

I purchased my e300 diesel (om606, no turbo) in Winter this year and since then the car has run a little above 80 on the temp guage.

Today we had our first warmish Spring day (Sydney Australia) at about 25 C/ 77 F outside temp. I was stuck in bumper to bumper traffic climbing a slight incline for 25 minutes until the road crew cleared an accident. For most of it I was accelerating and stopping with the AC running. I was getting a little concerned when the temp guage went all the way to the mark between 80 and 120 (I think it would make it about 90) and then it went up another little bit from the 90 mark at which point I turned of the AC.The traffic cleared shortly after and then after getting some air flow happening, the temp went back to arround 80.

Does this seem like a normal operation?
Thanks

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1995 E300 Diesel