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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 12-11-2014, 10:45 AM
Beemer97 Beemer97 is offline
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Mein Auto:
Temp sensor

We replaced the coolant temp sensor and the dash still goes up and says it's overheating. But the engine temp is normal. What now?!
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  #2  
Old 12-11-2014, 02:51 PM
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hornhospital hornhospital is offline
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Mein Auto: 1995 318is / 1993 325is
How do you know the engine temp is normal?
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Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
BMW-CCA #441426
1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
HAVE I HAD MY MEDS YET?

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  #3  
Old 12-11-2014, 03:57 PM
Beemer97 Beemer97 is offline
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My friend at his shop hooked it up and everything was norm
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  #4  
Old 12-11-2014, 04:16 PM
Beemer97 Beemer97 is offline
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It only goes up to the next line now. It used to go all the way up. Now it goes up and back down
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  #5  
Old 12-11-2014, 06:16 PM
Beemer97 Beemer97 is offline
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After some reading... I'm 90% sure it's the thermostat.
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  #6  
Old 12-12-2014, 02:17 PM
Beemer97 Beemer97 is offline
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Mein Auto:
Ok so here's what it is doing now.
Replaced the engine temp sensor. Worked fine for a cple hrs.
Then it started going up to the next line and back down.
Car drives just fine still.
Then today it went all the way to red. I pulled over right away and before I could come to a complete stop to shut the car down, it went back to normal. Car still runs, idles and drives exactly the same. So I drove slowly to the circle k and it went up to the next line and back down. Checked all fluids and everything is fine. Waited and started the car back up, normal. Drove a little and it slowly went up to red and immediately back down. And that's what it keeps doing now. But there is no leaks, no strange noises, nothing. Just a temp gauge going up and down.
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  #7  
Old 12-13-2014, 12:22 PM
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hornhospital hornhospital is offline
D'oh, You kids!
Location: In the Grumpy Chair
 
Join Date: Jan 2008
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Mein Auto: 1995 318is / 1993 325is
Did you test the gauge before launching into the sensor replacement? This really sounds like a gauge or connection problem rather than a sensor issue if the engine really is NOT overheating.
__________________
Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot

Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
BMW-CCA #441426
1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
HAVE I HAD MY MEDS YET?

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  #8  
Old 12-13-2014, 12:26 PM
Beemer97 Beemer97 is offline
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How do I test the gauge? The girl I got the car from told me her husband replaced the thermostat about a yr ago. She said the car did the same thing to her a cple times and then just stopped one day
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  #9  
Old 12-13-2014, 12:32 PM
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hornhospital hornhospital is offline
D'oh, You kids!
Location: In the Grumpy Chair
 
Join Date: Jan 2008
Posts: 15,110
Mein Auto: 1995 318is / 1993 325is
Did you download the Bentley manual? Right-click this and "save as".

http://api.viglink.com/api/click?for...orums&txt=This

It's ~95MB. Once you have it, go to section 170, pages 3 and 4. It has everything you need to know about testing the gauge. "If it's doing X, this is what's wrong" type step-by-step.
__________________
Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot

Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
BMW-CCA #441426
1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
HAVE I HAD MY MEDS YET?

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  #10  
Old 12-13-2014, 01:42 PM
Beemer97 Beemer97 is offline
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Mein Auto:
Can you send it to my email. It won't let me do anything on here. triciakinnebrew@gmail.com
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  #11  
Old 12-13-2014, 07:10 PM
hornhospital's Avatar
hornhospital hornhospital is offline
D'oh, You kids!
Location: In the Grumpy Chair
 
Join Date: Jan 2008
Posts: 15,110
Mein Auto: 1995 318is / 1993 325is
It's too big to email. You'll have to figure out some way to download it.
__________________
Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot

Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
BMW-CCA #441426
1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
HAVE I HAD MY MEDS YET?

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