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Old 11-13-2012, 03:00 AM
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mlukas161 mlukas161 is offline
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Location: WNY
Join Date: Oct 2008
Posts: 943
Mein Auto: 03 330i, 04 X3
I would say stock with a BMW original expansion tank. I've heard bad things about aftermarket expansion tanks such as URO and Meyle.

Do you need a new engine block crush washer? If you're also doing a coolant flush at this time its best to drain the engine block.

Need distilled water. A few gallons.

Might want to change your belts and check tensioners and pullys while the water pump is out. Definitely change the serpantine belt if you haven't already. Looks like a good list!
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