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I have run into this many times. Its rarely the (archive)

[ Follow Ups ] [ 5-series (E34) Message Board ] [ Msg. Board FAQ ]

Posted by Bill R. on October 29, 2000 at 19:26:09:

In Reply to: Exactly posted by matt on October 29, 2000 at 19:06:26:

thermostat. A lower temperature one usually makes no difference. Usually its a combination of things and isn't worth changing all of them for the slight gain. Start with buildup in the radiator, fan clutch. Cooling system flush. sometimes water pump. Usually just one doesn't take care of it, so for the slight difference I would leave it alone until the temperature is significantly higher than that.

Mine is a needle width past the middle, nothing big at all, I was just wondering

you must have a thermostat that is 196 degrees F= to 91 C you might wanna try putting in a thermostat that runs a little cooler like 89 degrees C that would keep your niddle slightlt below the mid range ....
So does mine. About a needle width past the half-way marker. Summer and winter. Loses no coolant. Check the radiator with the engine warmed up and SWITCHED OFF. Is the radiator evenly warm / hot all across or is there a cold patch? If the latter, you may have a choked radiator. You don't say how old the car is. If everything else is perfectly normal then not a problem in my opinion - the hand book says 'between the high and low marks' is acceptable. Better this than cool and have poor heater efficiency!

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