Thermostat housing corrosion

Cyberdemon · 10-06-2020, 05:37 PM

While changing the plugs I noticed the coolant line running into the Tstat housing was very crusty looking.

Not sure if this is just indicating a leak at that hose junction? Or signs that a new thermostat is on order in the near future?

The coolant level is right at the min mark when cold.

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GeorgeA · 10-07-2020, 05:02 PM

Probably a leak, for what it’s worth, when I was swapping my thermostat, my mechanic told me to swap that line out too because he’s seen a few of them leak from there.

10-06-2020, 05:37 PM	#1
Cyberdemon Brigadier General 1538 Rep 3,331 Posts Drives: 2020 X5 40i, 2018 M3 Comp Join Date: Jun 2012 Location: Long Island NY iTrader: (3)	Thermostat housing corrosion While changing the plugs I noticed the coolant line running into the Tstat housing was very crusty looking. Not sure if this is just indicating a leak at that hose junction? Or signs that a new thermostat is on order in the near future? The coolant level is right at the min mark when cold. __________________ Current: '20 X5, '18 M3 ZCP Previous: '11 E90 335i, '11 E90 M3, '16 VW GTI, '15 M235i, '13 335i, '08 TL-S, '00 Corvette
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10-07-2020, 05:02 PM	#2
GeorgeA Major 757 Rep 1,408 Posts Drives: E92 M3 Join Date: Jan 2016 Location: Los Angeles iTrader: (3)	Probably a leak, for what it’s worth, when I was swapping my thermostat, my mechanic told me to swap that line out too because he’s seen a few of them leak from there.
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