Bmw Thermostat

POKIE12345-ZA · 07-30-2012, 05:57 AM

Hi Can You Pls Tell Me If It You Must Replace The Thermostat Housing If I Want To Replace The Thermostat Or Will I Be Able To Open The Housing And Just Replace The Thermostat?

mike3000fl · 07-30-2012, 11:30 AM

Must Replace The Whole Thing.

If you are trying to save $$$...When it fails, it usually fails in an open position. Unless you live somewhere cold you don't have to replace it at all. It will just warm up slower because it is open (the coolant always will circulate to the radiator). The car may never reach full operating temp but it won't hurt anything.

If it failed closed, then it would overheat (because water would never circulate to the radiator).

GoRomeo · 10-02-2012, 07:25 PM

THis is my scenario right now...Seems like I have a faulty thermostat but not sure what to do cuz i have 95k miles and changing the thermostat ONLY will save me cash but, for how long before I need to change my water pump? I have no laud fan or anything....only when I turn AC on but its normal right? AC and heater work fine. Thanks

Brad from the OC · 10-03-2012, 06:35 AM

You are just about on borrowed time on your waterpump. No exact mileage left, but it will fail.

07-30-2012, 05:57 AM	#1
POKIE12345-ZA Registered 0 Rep 1 Posts Drives: 323I E90 Join Date: Jul 2012 Location: South Africa iTrader: (0)	Bmw Thermostat Hi Can You Pls Tell Me If It You Must Replace The Thermostat Housing If I Want To Replace The Thermostat Or Will I Be Able To Open The Housing And Just Replace The Thermostat?
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07-30-2012, 11:30 AM	#2
mike3000fl Banned 138 Rep 2,731 Posts Drives: 06 330i Join Date: Feb 2010 Location: Tampa iTrader: (0)	Must Replace The Whole Thing. If you are trying to save $$$...When it fails, it usually fails in an open position. Unless you live somewhere cold you don't have to replace it at all. It will just warm up slower because it is open (the coolant always will circulate to the radiator). The car may never reach full operating temp but it won't hurt anything. If it failed closed, then it would overheat (because water would never circulate to the radiator).
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10-02-2012, 07:25 PM	#3
GoRomeo Brigadier General 964 Rep 3,854 Posts Drives: 330i, 135i Join Date: Feb 2006 Location: San Diego CA iTrader: (0) Garage List 2008 BMW 135i [9.50] 2006 330i [6.75]	THis is my scenario right now...Seems like I have a faulty thermostat but not sure what to do cuz i have 95k miles and changing the thermostat ONLY will save me cash but, for how long before I need to change my water pump? I have no laud fan or anything....only when I turn AC on but its normal right? AC and heater work fine. Thanks
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10-03-2012, 06:35 AM	#4
Brad from the OC Private First Class 15 Rep 153 Posts Drives: 325Ia Alpine White Join Date: May 2006 Location: Southern California iTrader: (0)	You are just about on borrowed time on your waterpump. No exact mileage left, but it will fail.
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