Question about 1995 BMW 5 Series

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HOW DO YOU PURGE OR RELEASE AIR ONCE YOU REPLACE RADIATOR, WATER PUMP AND THERMOSTAT?

REPLACED RADIATOR, WATER PUMP, AND THERMOSTAT STILL RUNNING HOT.

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Let the engine cooldown,then open the bleed screw on on the thermostat house,do not remove just loosen----fill water in the radiator bottle slowly and watch for water coming out of the bleed screw----
sometimes the bleed screw is blocked due to anti-freeze-then take the screw off completely ,clean and replace----always make sure the engine is cool

Posted on Jun 15, 2009

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The thermostat (on bmw replacement parts) have an arrow that has to be installed facing upward.if this was done correctly,to bleed the system usually there is a bleeder screw on or near the expansion tank(where you fill the coolant) and possibly on the thermostat housing. i would recommend opening both bleeders and keep filling the system with coolant closing the lower bleeder first and then allow the rest of the air purge from the other bleeder screw.make sure the coolant stays full and be patient you can't wait TOO long.

Posted on May 03, 2009

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Try bypassing the heater core if overheating stops u got a bad core

Posted on Nov 22, 2011

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Posted on Jan 02, 2017

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