Question about 1985 BMW 3 Series
There should be 2 bleeder screws in the system, one on the expansion tank, and one on a thermostat housing. Open both screws all the way. Turn the key to the On postion (but dont start the car). Then turn the heater to max heat, but have the fan set at the lowest setting. Fill the expansion tank til coolant comes out of both bleeder screws with no bubbles. After that close the screws (be very careful not to over tighten them!!). Then completly fill the expansion tank. (dont mind the full mark, if theres air in the system, it will drop the level in the expansion tank) And thats it. Drive the car around then check the level.
Posted on Mar 12, 2009
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Posted on Jan 02, 2017
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