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      11-21-2009, 11:48 AM   #12
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Drives: 2011 135i, FJR-1300
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Originally Posted by AlanAZ View Post

Also, BMW warns not to subject the pump to straight coolant, it must be mixed with water outside the engine.
Also, it mentions not to leave the pump sitting dry for too long, else it will damage it. So, you make sure you have the new coolant premixed and ready to pour as soon as you are done draining the old coolant.
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