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      01-07-2017, 12:11 PM   #42
rohan_b79
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Drives: 2011 bmw X3 xdrive35i
Join Date: Oct 2011
Location: California, USA

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Water pump failure and thermostat replacement

AT 67K miles on my 2011 X3 (N55 motor), I have a faulty water pump so its going to cost me $430 and $ 109 for pump and thermostat respectively. Labor is another 4 hr so $400 here in San Jose CA.

I thought of doing it myself, but since the access is from the bottom so I decided to let a auto mechanic do it. You really don't need to replace the thermostat but since its a 4 hr labor job to reach it , you might as well, and keep the old one if it still works for later.
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