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300e temp high at idle.
Hello Board,
My 300E haa a weird problem. While driving my temp will be about 82 C, when I idle for about 5 minutes, the temp quickly will hit the 110C temp, and the aux fan will cut in. The aux fan quickly brings the temp down, but I am curious as to why the car heats up so fast at idle?? The coolant is the prestone ORANGE Dex-cool coolant. The mixture is about 60% water and 40% coolant. Help!!!!
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1987 mercedes 300E 1995 e320 conversion(hated the 300e grill) HID/Xenon (D2S) Keyless Entry Monochromatic Paint (Custom Blue) Smoked Tails Flat Badged (front) Debadged (rear) custom "carbon fiber" console 18 inch HP EVO rims Sold! Now I drive a Monte Carlo SS http://memimage.cardomain.net/member.../352975_67.jpg http://memimage.cardomain.net/member.../748335_24.jpg |
#2
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this can either be your thermostat or the water pump is not moving enough water. Check the weep hole to see if you have any residue there. THe only other thing is maybe the fan clustch is having problems. If you drive it hard does the temp rise?
m
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Martin Ingram Colorado Springs 2005 320 CDI 2006.5 VW Jetta TDI 1991 560SEL (179000 Sold) 1972 280SEL 4.5 ('The Lead Sled' 320000 miles when sold.) 1972 220D (225000 when sold) |
#3
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Sounds like the fan clutch to me.
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Jim |
#4
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Engine driven fan clutch is suspect. It should tighten up at about 100C coolant temp and you should hear it roar it you rev the engine to about 2000-2500.
Duke |
#5
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Visco clutch, probably.
Also, check to make sure you have the engine full of coolant by squeezing the upper radiator hose (engine cool, tank cap off), the pinching the overflow hose shut. Let go of the upper hose, then repeat. If air burps out, keep repeating and adding coolant til only coolant moves into the tank when you squeese the upper rad hose. Peter
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1972 220D ?? miles 1988 300E 200,012 1987 300D Turbo killed 9/25/07, 275,000 miles 1985 Volvo 740 GLE Turobodiesel 218,000 1972 280 SE 4.5 165, 000 - It runs! |
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