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E46 Convertible
The E46 vert forum. Talk about dropping your E46 top here.

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Old 08-15-2012, 05:15 PM   #1
mcarou5
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Coolant light on

Has anyone had the coolant light turn on?
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Old 08-15-2012, 05:24 PM   #2
mcarou5
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Light turns off and then comes back and I checked the coolant level and its ok but I cant figure out why is this happening.
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Old 08-15-2012, 05:39 PM   #3
sakumaxp
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just add some coolant, and see if it persists...
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Old 08-15-2012, 05:54 PM   #4
mcarou5
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it has coolant I have checked
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Old 08-15-2012, 11:33 PM   #5
MyNewRag
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Maybe it is scared because you are taking pictures while driving over 70 MPH...

But seriously, what does your gauge read? Is your aux fan running when the light is on? Have you checked your thermostat? Cap have a good seal?
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Old 08-16-2012, 02:43 AM   #6
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Light will keep coming back.


You need to bleed the system when adding coolant to turn off the light.


There's a black plastic + screw next to the cap. Or near around it. Fill the coolant when engine is cold to recommended level. Close it back up. Start the car. Let the car warm up. Start unscrewing the black screw slightly till hot air and coolant start spilling out. When there's nothing left to spill out. Close the screw. Turn off the car. Let the car cool down again. Fill to recommend level again.

This get rid of all the air bubbles inside the coolant system which is causing the light to come on.
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Old 08-16-2012, 08:27 AM   #7
mcarou5
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thanks monkey juice ill try it and post back
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