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Car Forum / BMW Cars / May 20051992 525i Overheating
I notice that my 1992 525i overheats when it sits idle for several minutes or more. Today as I was waiting in line for coffee, it went quite high. As I drove away, it barely touched the red area and the coolant temp warning went off, as I drove, as it always does in the past, it dropped back to normal within a minute. The radiator was replaced 2 years ago before I got the car and supposedly the thermostat was replaced as well. What might be causing this? Thanks! > I notice that my 1992 525i overheats when it sits idle for several minutes > or more. Today as I was waiting in line for coffee, it went quite high. As [quoted text clipped - 4 lines] > The radiator was replaced 2 years ago before I got the car and supposedly > the thermostat was replaced as well. What might be causing this? Thanks! If the car overheats only when idling (as your description) but maintains proper cooling when in motion, the problem is most assuredly the fan clutch. Not a big deal to replace but they are kind of expensive. -Fred W > If the car overheats only when idling (as your description) but > maintains proper cooling when in motion, the problem is most assuredly > the fan clutch. Not a big deal to replace but they are kind of expensive. He's right. If you replace it your self bear in mind the clutch's nut is reverse thread!  SignatureWho needs a life when you've got Unix? :-) Email: john@unixnerd.demon.co.uk, John G.Burns B.Eng, Bonny Scotland Web : http://www.unixnerd.demon.co.uk - The Ultimate BMW Homepage! Need Sun or HP Unix kit? http://www.unixnerd.demon.co.uk/unix.html > > I notice that my 1992 525i overheats when it sits idle for several minutes > > or more. Today as I was waiting in line for coffee, it went quite high. As [quoted text clipped - 10 lines] > > -Fred W Good call, Fred. I suggested the water pump in my last post, but the fan clutch is the more likely culprit. You need a water pump. And you'll soon need a new head if you continue to allow the Temp needle flirt with the red mark. > I notice that my 1992 525i overheats when it sits idle for several minutes > or more. Today as I was waiting in line for coffee, it went quite high. As [quoted text clipped - 4 lines] > The radiator was replaced 2 years ago before I got the car and supposedly > the thermostat was replaced as well. What might be causing this? Thanks! Try bleed out the air, if any, from the cooling system. -- Johan >I notice that my 1992 525i overheats when it sits idle for several minutes > or more. Today as I was waiting in line for coffee, it went quite high. As [quoted text clipped - 4 lines] > The radiator was replaced 2 years ago before I got the car and supposedly > the thermostat was replaced as well. What might be causing this? Thanks! |
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