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| E36 General discussion and technical help for (E36) 1992-1999 3 series cars. 318, 323, 325, 328. |
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12-14-2010, 03:59 PM
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#1 |
****ing coolant system!
Help please. 316i 1995. New radiator and waterpump fitted now keeps overheating. Bled coolant system endlessly...now removed thermostat in desperation so it cant be that not opening! Pipes to top and bottom of radiator get rock hard so pressure in there way too high. Fan and switch working perfectly so not that. Really don't think it's air lock and it's not the head gasket...2 questions as I must be doing something stupid! 1) Could I have TOO MUCH coolant in there which is causing the pressure build up? 2) Is the radiator cap designed to release the pressure build up, as this hasn't been changed and may be faulty if it is supposed to do this? Any advice offered would be greatly appreciated. Thanks all! |
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12-14-2010, 11:17 PM
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#2 |
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Are you overheating and seeing smoke. When I replaced my Serpentine belt, I remove the upper radiator hose to gain more access. I had added the coolant I lost from the belt, but kept getting Coolant warning on my OBC. When I tightened the hose clamp, the warning went away. Could be just tightening hose clamps. |
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12-15-2010, 09:12 AM
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#3 |
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If you have never replaced the expansion tank on your '95, odds are that if you cut it open, you will find that it is crumbling inside. If it is crumbling inside, you will get phantom low coolant warnings from the water surging against the float, and it will tend to suck air into the cooling system. Too much coolant won't cause the car to overheat. If you cap is working properly, the excess coolant should push out the first time the car gets fully warm. |
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