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Nuclear engineer
02/2012 X5 35d M57Y CPO 99K miles NOKIAN WR G3 12K miles
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17,461 Posts
Possibly. Mechanical water pumps shaft seals are cooled and lubricated by pumped fluid weepage / leakage. As the seal fails its leak rate increases. Dried coolant visible leaged from a second generation BMW mechanical water pump is a sign. Visible liquid from a third generation BMW mechanical water pump is a sign.
 
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