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Coolant Level Warning

scottiemac
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scottiemac Member

scottiemac

Posted
Posted

I have a 1999 C2 Cab with Tiptronic. During a recent drive in the mountains on a twisty bit of road my coolant level warning light started to flash. I had just checked the level before the drive and it was good and there was no evidence of any leaks. I shut it off and re-started it and all was OK for the rest of the drive (including more high speeds and tight corners). Has anybody experienced this? I'm not sure if the high "G" force corners somehow upset the level sensor. Thoughts and comments would be appreciated.

Cheers, Scott

scottiemac Member

scottiemac

Posted
  • Author
Posted
Is the coolant tank full?

If so, you could have a bad sensor.

Thanks Loren. The tank is full to the max line. Where is the level sensor located?

scottiemac Member

scottiemac

Posted
  • Author
Posted
Sensor is on the bottom of the tank.

I think the tank has to come out to change it.

I'll see if it happens again. I drained some coolant out of the car a while back and added some Porsche A/F to get the freeze protection down to a level more appropriate to my climate (Calgary - the car came from Pennsylvania). Everthing seemed to be OK since then and when this happened I was concerned that I had an airlock in a high point of the system that worked its way out at high engine speed/uphill/downhill/corners. When I got home after this episode and let it cool down the coolant level was still at the Max point. Your comments on a wonky sensor are probably correct. Thanks again. By the way Loren, this is a great site. Lots of good information. My only issue is these engine failure stories scare the crap out of me!!

juniinc Member

juniinc

Posted
Posted (edited)

remove 2 wires from your coolant sensor, leave them apart. if flashing light goes away,it is definitely the sensor!

Edited by juniinc
scottiemac Member

scottiemac

Posted
  • Author
Posted
remove 2 wires from your coolant sensor, leave them apart. if flashing light goes away,it is definitely the sensor!

Thanks. Will try that the next time it comes on.

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