Broken Coolant Vent Line, is this an issue?

Dylanize · 02-23-2017, 03:48 PM

Hey guys, so this little vent line broke right off at the connection. I've plugged both ends and no coolant is leaking. Temps seems normal across the board.

How important is this little guy? Should I be concerned about driving the car for the time being?

It's a 30 dollar part where the nipple broke off, but will probably require a coolant flush to replace.. ugh

Pic of line:

Really frustrating how much plastic is used on the cooling system.

Thanks guys

sirdaft1 · 02-23-2017, 06:15 PM

I'd personally avoid driving around until you have that fixed. You shouldn't lose very much coolant when you swap out that connector either, although it would still be smart to bleed the system (takes 15 mins and is all automated- search 335i coolant bleed). While you're in there, replace the tiny hose while you're at it. That piece is even MORE brittle if it hasn't been replaced.

02-23-2017, 03:48 PM	#1
Dylanize Captain Dutch Rudder 208 Rep 2,258 Posts Drives: AMG Join Date: Jan 2013 Location: Charlotte, NC iTrader: (8)	Broken Coolant Vent Line, is this an issue? Hey guys, so this little vent line broke right off at the connection. I've plugged both ends and no coolant is leaking. Temps seems normal across the board. How important is this little guy? Should I be concerned about driving the car for the time being? It's a 30 dollar part where the nipple broke off, but will probably require a coolant flush to replace.. ugh Pic of line: Really frustrating how much plastic is used on the cooling system. Thanks guys __________________ No more E92 or E82
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02-23-2017, 06:15 PM	#2
sirdaft1 Brigadier General 2246 Rep 3,353 Posts Drives: F85 X5M Join Date: Feb 2013 Location: Chicago West Burbs iTrader: (9) Garage List 2016 BMW X5M [9.00] 2012 BMW X5 35i (SOLD) [9.67] 1989 BMW 325i Track ... [10.00] 2007 E90 WTCC Wideb ... [8.50]	I'd personally avoid driving around until you have that fixed. You shouldn't lose very much coolant when you swap out that connector either, although it would still be smart to bleed the system (takes 15 mins and is all automated- search 335i coolant bleed). While you're in there, replace the tiny hose while you're at it. That piece is even MORE brittle if it hasn't been replaced.
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