The car (95 E300d) usually runs around with the temp indicator at the top of the 8 (gauge) on the freeway and around town, summer or winter. If I turn on the AC it jumps well above the next mark on the gauge for a bit on the freeway, and around town it goes even higher and stays there to the point I think it turns off the AC. If I go up a prolonged grade on the freeway the temp climbs accordingly, but really moves if the AC is on. Freeway driving, over time will get the temp down to the 8 again, AC on or off. Any thoughts? Do have a problem?
I checked the engine driven fan after I parked it, and it is turning. I disconnected the temp sensor (blue plug) in the inlet to the engine block and both fans came on at a very high speed, when connected back the fans turn off. Is there a way to check the temp sensor since for as long as I have owned this car I have never seen those fans turn. I did check the relays, fuses, and resistor as mentioned earlier on thos post, they all seem fine.


Thanks,

B52Rule


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1960 190D (college car), gone
1995 E300D, 325 k
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