Help with coolant lines....

335i101 · 12-16-2011, 05:27 PM

Does anyone know of the 2 coolant lines that run into the firewall, which direction the flow is going from the radiator?

I warmed up the car and they both felt warm.

One connects to the top of radiator on the drivers side.....the other disappears under the car and looks as though it connects to the bottom of the radiator.

Just need to know which one is following into the car from radiator and which is coming out of car from heater core.

I need a new heater core....labor is 10hours or something....so I am gonna try flushing the lines.

Thanks

yalibuda · 12-16-2011, 11:02 PM

TOP is hot water, the other is cold.

335i101 · 12-17-2011, 03:15 AM

Quote:

Originally Posted by yalibuda

TOP is hot water, the other is cold.

THANKS, that was my guess, but didn't know for sure!'

335i101 · 12-17-2011, 04:36 AM

Quote:

Originally Posted by yalibuda

TOP is hot water, the other is cold.

The too at the radiator or top at the firewall?

12-16-2011, 05:27 PM	#1
335i101 Lieutenant 87 Rep 590 Posts Drives: 2008 E60 M5 Join Date: Dec 2010 Location: ND iTrader: (2)	Help with coolant lines.... Does anyone know of the 2 coolant lines that run into the firewall, which direction the flow is going from the radiator? I warmed up the car and they both felt warm. One connects to the top of radiator on the drivers side.....the other disappears under the car and looks as though it connects to the bottom of the radiator. Just need to know which one is following into the car from radiator and which is coming out of car from heater core. I need a new heater core....labor is 10hours or something....so I am gonna try flushing the lines. Thanks __________________ 2021 Mercedes G550 2015 X5M 2020 Supra-JB4, DP 2008 M5 with muffler delete-sold 2007 650i-sold 2008 335i-JB4, DP, Meth-sold
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12-16-2011, 11:02 PM	#2
yalibuda New Member 6 Rep 25 Posts Drives: E46 + E92 Join Date: Mar 2011 Location: Taiwan iTrader: (0)	TOP is hot water, the other is cold. __________________ Causal Swing~
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