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#1
07-26-2021, 10:16 PM
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Coolant leak
I have a coolant leak I can't seem to get to the bottom of. It is right at the bottom, below the oil cooler. I replaced the oil cooler o-rings but it's not that - it look to be coming from just above the torx bolt in this picture?
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#4
07-26-2021, 11:33 PM
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Wash and dry it off then watch closely. It will probably be most likely to leak as the engine is cooling off. You could try to pull off the rad cap with the engine cold and watch it. A pressure tester and dye might help as well if you still can't find it for sure.
__________________
1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me)
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#5
07-27-2021, 01:09 AM
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It's likely the mounting plate - part #15 (there're two O-rings there that tend to leak. I had a leak there and replaced those O-rings (#17) when I flashed the coolant.
https://www.realoem.com/bmw/enUS/sho...diagId=17_0291
__________________
'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M. Last edited by X5only; 07-27-2021 at 01:45 AM.
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