Coolant temperature too high?

[wales1975]

I have searched the forums without a definitive answer.

OK, I noticed yesterday that the coolant temperature was riding a little high whilst standing in traffic, it was difficult to tell if the cooling fan was cutting in, but the temperature was sitting around 99-100. of course the traffic cleared after a few minutes and then the temperature then went back down to 90 where it usually sits. The coolant was flushed and bled correctly last year, so I shouldn't have any air locks.

So the question is at what temperature should the cooling fan kick in? I read elsewhere that the cooling fan should kick in at 97-99 degrees, but would like to get this verified...

I will try to idle the car today to check if the cooling fan is kicking in, but in the mean time thoughts are appreciated.

[GrandadMonkey]

I've never seen it specified anywhere at what temperature the Bitron control unit brings the cooling fan into action. The boiling point of coolant with the correct anti-freeze mix is going to be at least 120 degrees C in the pressurised system so unless your gauge goes into the red I wouldn't worry.

I check if my fan cuts in by leaving the engine running while stationary after a run-out. I don't check often, just occasionally when I put the car away in the garage. When I hear the fan cut in I know its ok.

You are going to do the same to check it and I'd be interested to hear the result.

[Rivis]

You'll get the warning beeps and 'STOP' flashing if it gets too high.