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  #1  
Old 04-28-2008, 02:38 PM
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Should I Replace Waterpump?

I'm in the shop right now for alternator problems(?). It's a 2000 4.4 with 100,000 miles, had it since 42,000. Reading many of the postings on this site I'm wondering:
- Should I go ahead and replace the waterpump (and hoses) now, before it goes?
- What is a Final Stage Resistor?
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Old 04-28-2008, 03:10 PM
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1. Can't comment, I don't have the experience...
2. Info here http://www.xoutpost.com/articles/x5/m...placement.html

Please post up your decision on subject 1...
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Old 04-28-2008, 03:23 PM
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Replacing waterpump, hoses and belts at around 100K makes sense if they are still original.

Final stage resister controls the fan speed of the cabin heating/cooling system.
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Old 04-28-2008, 03:32 PM
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i say do it...
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Old 04-28-2008, 03:32 PM
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Old 04-28-2008, 04:09 PM
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Replace the waterpump. I had to help a buddy out last week on his 2001 325i with 77k, because his waterpump failed and the plastic fan blades broke off and tore up his radiator.

Just my .02 pesos.


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Old 04-28-2008, 04:57 PM
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You are definitely in the "got-you-money's-worth & am on borrowed time" category - most BMW water pumps fail between 60,000-80,000 miles - the plastic vanes break with collateral damage to hoses, or radiator, or warped heads, or worse - good time to also replace belts & thermostat
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