Thermostat cel?

gsxrliterbikz · 11-28-2016, 07:33 PM

So recently I got a cel for having a faulty cel. Anyone ever seen this before? Not sure how the dme even knows how a mechanical component like a thermostat is bad. I'll grab the actual code tomorrow. Just wanted to see if anyones ever had a similar code before ordering parts.
Car has 93k on it. Never overheats. Only mods are a macht schnell cat delete and a bren tuning tune to disable the cel for no cats.

slawless · 11-28-2016, 07:54 PM

The computer actually watches how fast the engine warms up. If it takes too long, it assumes the thermostat is stuck open. Mine did this about 70K. My daughters Jetta did the same thing. There is a great DIY.

monterey · 11-29-2016, 01:21 AM

Sometimes it will show as a increased emissions CEL. But when you read the fault it will be your tstat.

gsxrliterbikz · 11-29-2016, 08:47 AM

Good to know. So just a new tstat and I'm good. I'll get some new orings too just to be safe.

doogee · 11-29-2016, 09:05 AM

Do the waterpump at the same time!

gsxrliterbikz · 11-29-2016, 10:06 AM

Any particular reason why? Nothing wrong with it and it doesn't look very difficult to change if I needed to later on.

doogee · 11-29-2016, 10:10 AM

Quote:

Originally Posted by gsxrliterbikz

Any particular reason why? Nothing wrong with it and it doesn't look very difficult to change if I needed to later on.

Preventative maintenance. If you want to wait for your pump to fail and shoot pieces of plastic throughout the cooling system then by all means wait

They should be changed together.

ec_E92 · 11-29-2016, 10:17 AM

Quote:

Originally Posted by doogee

Quote:

Originally Posted by gsxrliterbikz

Any particular reason why? Nothing wrong with it and it doesn't look very difficult to change if I needed to later on.

Preventative maintenance. If you want to wait for your pump to fail and shoot pieces of plastic throughout the cooling system then by all means wait

They should be changed together.

It's not an E36...

OP, at 93k you should just replace both. Water pump is a wearable item, mine went out around 90k and I did pump, Tstat and coolant flush at that time.

TWiTCHY · 11-29-2016, 01:26 PM

For those of you replacing your water pumps, are you using GEBA, OEM, or OEM refurbished units?

And if you are going to replace all of these then you might as well replace the temperature sensor as well - it's the cheapest part of the three.

audioMeth · 11-29-2016, 11:29 PM

could be the temp sensor that sits on top of the tstat housing.

azndrunk74 · 11-30-2016, 12:14 AM

i replaced both the thermostat and temp sensor to be on the safe side. might as well while you have everything apart.

11-28-2016, 07:33 PM	#1
gsxrliterbikz Second Lieutenant 33 Rep 226 Posts Drives: E93, E38, E53 Join Date: Jan 2015 Location: NH iTrader: (0) Garage List 2008 Bmw m3 [0.00] 2001 BMW x5 [0.00] 2001 BMW 740 [0.00]	Thermostat cel? So recently I got a cel for having a faulty cel. Anyone ever seen this before? Not sure how the dme even knows how a mechanical component like a thermostat is bad. I'll grab the actual code tomorrow. Just wanted to see if anyones ever had a similar code before ordering parts. Car has 93k on it. Never overheats. Only mods are a macht schnell cat delete and a bren tuning tune to disable the cel for no cats. __________________
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11-28-2016, 07:54 PM	#2
slawless Private 20 Rep 58 Posts Drives: 2008 E92 M3 Join Date: Jun 2013 Location: Wilmington, DE iTrader: (0)	The computer actually watches how fast the engine warms up. If it takes too long, it assumes the thermostat is stuck open. Mine did this about 70K. My daughters Jetta did the same thing. There is a great DIY.
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11-29-2016, 01:21 AM	#3
monterey Major 339 Rep 1,239 Posts Drives: 2008 M3 Join Date: Mar 2016 Location: United States iTrader: (1)	Sometimes it will show as a increased emissions CEL. But when you read the fault it will be your tstat.
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11-29-2016, 08:47 AM	#4
gsxrliterbikz Second Lieutenant 33 Rep 226 Posts Drives: E93, E38, E53 Join Date: Jan 2015 Location: NH iTrader: (0) Garage List 2008 Bmw m3 [0.00] 2001 BMW x5 [0.00] 2001 BMW 740 [0.00]	Good to know. So just a new tstat and I'm good. I'll get some new orings too just to be safe.
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11-29-2016, 09:05 AM	#5
doogee Major 748 Rep 1,256 Posts Drives: '08 M3, '09 328xi Sport Wagon Join Date: Oct 2008 Location: Ancaster, ON, Canada iTrader: (0)	Do the waterpump at the same time! __________________
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11-29-2016, 10:06 AM	#6
gsxrliterbikz Second Lieutenant 33 Rep 226 Posts Drives: E93, E38, E53 Join Date: Jan 2015 Location: NH iTrader: (0) Garage List 2008 Bmw m3 [0.00] 2001 BMW x5 [0.00] 2001 BMW 740 [0.00]	Any particular reason why? Nothing wrong with it and it doesn't look very difficult to change if I needed to later on.
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11-29-2016, 01:26 PM	#9
TWiTCHY Colonel 376 Rep 2,526 Posts Drives: '13 AW E92 M3 Join Date: Jul 2008 Location: WA iTrader: (6)	For those of you replacing your water pumps, are you using GEBA, OEM, or OEM refurbished units? And if you are going to replace all of these then you might as well replace the temperature sensor as well - it's the cheapest part of the three.
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11-29-2016, 11:29 PM	#10
audioMeth BTC maxi 222 Rep 1,124 Posts Drives: F80 Join Date: Feb 2009 Location: Rehoboth, MA iTrader: (8)	could be the temp sensor that sits on top of the tstat housing.
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11-30-2016, 12:14 AM	#11
azndrunk74 Major 612 Rep 1,326 Posts Drives: Frozen Black F10 M5 Join Date: Nov 2012 Location: Bay Area, CA iTrader: (13)	i replaced both the thermostat and temp sensor to be on the safe side. might as well while you have everything apart. __________________ 2014 Frozen Black F10 M5 \| Agency Power HFC Downpipes \| Custom Open Flash Stage 2 Tune \| KW HAS kit \| 3D Design Lip \| 3D Design Skirts \| 3D Design Spoiler \| IND Front & Rear Reflectors \| IND M5 Badge \| M Performance Steering Wheel \| M Performance CF Shift Knob \| Pedal Haus Pedals & Paddles \| Turner Exhaust \|
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