2011 bmw n52

sanjot147 · 10-29-2023, 01:20 PM

My 2011 n52 seems to be making coolant disappear. I have no leaks or anything yet i woke up to an empty coolant tank. I literally just filled her up 2 days ago too. Bleed screw was tightened when I filled the coolant because i heard that could sometimes leak too. Anyone know what the issue could be?

Brian86 · 10-29-2023, 06:54 PM

Yes.

It's leaking coolant.

Look harder.

Efthreeoh · 10-30-2023, 06:31 AM

Pressure test the cooling system

TGTIW · 10-30-2023, 08:11 AM

2011 and if it's on original hoses, mickey mouse flange, water pump, etc, it's leaking. The flange has probably mostly dissolved by now and the o-rings in the hose connections have dried and hardened nicely.

10-29-2023, 01:20 PM	#1
sanjot147 Registered 0 Rep 1 Posts Drives: Bmw 328i Join Date: Oct 2023 Location: Toronto iTrader: (0)	2011 bmw n52 My 2011 n52 seems to be making coolant disappear. I have no leaks or anything yet i woke up to an empty coolant tank. I literally just filled her up 2 days ago too. Bleed screw was tightened when I filled the coolant because i heard that could sometimes leak too. Anyone know what the issue could be?
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10-29-2023, 06:54 PM	#2
Brian86 Captain 638 Rep 766 Posts Drives: e36 M3, e91 325xi, N50 Xterra Join Date: Dec 2020 Location: Pittsburgh iTrader: (0)	Yes. It's leaking coolant. Look harder. __________________ Sometimes a bolt is just a bolt.
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10-30-2023, 06:31 AM	#3
Efthreeoh General 17317 Rep 18,740 Posts Drives: The E90 + Z4 Coupe & Z3 R'ster Join Date: May 2012 Location: Virginia iTrader: (0)	Pressure test the cooling system
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10-30-2023, 08:11 AM	#4
TGTIW Second Lieutenant 130 Rep 245 Posts Drives: 2010 328i Join Date: May 2013 Location: Knoxville iTrader: (2)	2011 and if it's on original hoses, mickey mouse flange, water pump, etc, it's leaking. The flange has probably mostly dissolved by now and the o-rings in the hose connections have dried and hardened nicely.
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