Thread: W123 300D overheating
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  #8  
Old 06-23-2006, 11:07 AM
SD Blue SD Blue is offline
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Join Date: Jun 2004
Location: West of Ft. Worth. TX
Posts: 4,186
That is not uncommon. There probably is still a little air in the system. For the next couple of days, keep an eye on your coolant level and top it off.

The main fan clutch becomes "more engaged" with temperature increase. It kind of free spins until the right temp. From what I have read here, the aux. fan comes on with a couple of scenarios. One is with coolant temp. of 105C and the other is with the air conditioning.
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Sam

84 300SD 350K+ miles ( Blue Belle )
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