Quote:
Originally Posted by pnolet
hey guys so i have a 99 e300 td and i love it. engine is in great shape however im having a few minor prolems.
1.when i sit idle or drive alot of stop and go, my coolant temp raises way past 80 degrees... but on highway its right at 80...both condensing fans are working...any ideas?
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So.... what is the ambient temp when the AC is on and this happens and how hot is "hot"? What was your overheat situation you've alluded to all about?
In my expirience, when its 95-110f outside and you are curising the freeway at 80mph & 80-85C, and then get off into stop and go traffic, it's pretty typical for coolant temps to head up to 90-95c (even 100c) in a hurry and for the fan clutch and Aux fans to begin to engage.
Mine has never gone above 105C even when its hit 110F in stop and go traffic after a freeway run. Of course the AC is on.
My fan clutch, aux fans, and thermo are all original.