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Originally Posted by bmwman528e
They usually go out between 120-150k miles why are you changing it so early? I'll give you $50 for yours as a backup for one of my cars.
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I truly wish that this were case. Looking through several forums will prove that this is not always true.
Quote:
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Originally Posted by boostedX5SAV
The N55s use electronic water pumps which can fail as early as 50k miles. It's failure is pretty much based on engine run time than mileage. I've had mine fail at 55k miles because I'm mostly in city traffic and miles. Others who have had the water pump fail at 80k miles or higher typically have highway miles.
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This is more accurate. I just bought the X5 with 58k miles on the odo, and the fact that this vehicle spent its entire life in SoCal, I'm certain that those miles were spent sitting in traffic. The bottom line is, I can't trust this vehicle until that water pump has been replaced. I wanted to take the X5 to Vegas last weekend, but with the WP not replaced, I had to drive my wife's Lexus Hybrid....nice car, but man, is it boring.