Quote:
Originally Posted by pawoSD
My 300E 3 liter M103 runs at 82C rock solid most of the time, it goes up a bit if sitting on a hot day with the A/C on, but then the fan clutch engages and brings it back down quickly when accelerating. I've never seen it go over 88-90C....and thats only when sitting....when driving it is never above 85C even with the A/C on on a hot day....
Even if your system is flushed and has a new T-stat.....if the radiator is old it might be plugged up with dirt and not getting good air flow. And does the fan clutch engage? If the engine is getting to 90C it should be quite a noticeable roar when rev'd over 2000rpm.....if not then you might need a new fan clutch.
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Well the fan clutch does roar at like 105C, but then slows down after about a minute.
The radiator is about 3 years old. Replaced it when I bought the car. I do admit it wasn't OEM.... Not sure if that would realistically make the difference though?