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#1
05-04-2009, 07:14 PM
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Water Pump Failure after 10K miles
 . Thanks.
__________________
"The only think I like driving as much as my BMW is my Titleist" 
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#2
05-04-2009, 09:08 PM
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BMW water pumps were/are weak (plastic impeller which breaks) but I thought they changed the design.
No way a water pump should only last 10k miles. Try bavarian autohaus in NH and call them for a better water pump (like 200USD)
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#4
05-04-2009, 11:53 PM
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I have heard of impeller failures, but that is too early.
Was it a bearing problem, or a leaking seal (which is often a result of a bearing failure)? If so, I would wonder about belt tension, a frequent cause of water pump failures on other models. There is a tensioner on your belt, but conceivably there could be a problem. Just guessing.
__________________
2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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#5
05-05-2009, 09:20 AM
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The 3.0 engine has a Stewart water pump replacement available with stainless steel impeller - the V8s are stuck with the plastic BMW part
__________________
Mark         _______________________________2001 X5 4.4i topaz blue/sand Sport, complete Dinan S2  , hitch, V1, tint, BSW Stage 1, Alpine INA-W910BT___________ Life is not fair! You can't protect people from their own stupidity! Laughter makes life worth living
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#7
05-05-2009, 10:23 AM
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Quote:
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#8
05-05-2009, 01:17 PM
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Guys...can you all clarify two issues?
1) Confirm whether or not the 2 year parts warranty is correct. If so, then my indie mechanic who purchased the failed water pump should be able to get it replaced at no cost assuming he bought it from a BMW dealer parts department .2) What are the specs for the belt tensioner on the water pump? Would too loose or too tight cause premature failure? BTW...looks as though the problem was a bearing failure in the pump. Thanks for all the input!
__________________
"The only think I like driving as much as my BMW is my Titleist"
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#9
05-05-2009, 03:35 PM
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Quote:
Original BMW Parts : Remanufactured Parts Savage BMW splash_01
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#10
05-05-2009, 04:17 PM
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The dealer specific question is a good one.
BMW Parts Department | BMW Parts | BMW Accessories | BMW Parts Store | BMW Dealer Parts Quote:
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"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.” Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance……. 
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