Hello everyone.
My clio (1994 1.4) failed its MOT earlier.
Failed on backbox corroded and blowing, which now that I've been out and gone under for a look myself, is fair enough, it does have a hole in it.
However it also failed on "emissions not tested (due to engine overheating)"
That's odd I thought, I've NEVER had even an inkling of a problem with this overheating.
I've had it sitting outside here idling for about 45 minutes and it's happily sitting there with the fan cutting in and out, about ~1 minute off then ~2 minutes on.
If you prop the throttle open to hold it at >2000rpm, then yes you can make the needle creep VERY slowly higher and higher. i.e one of the smallest gauge divisions in about 5 minutes. To make it 'overheat' you'd need to hold it at >2000rpm for maybe 20mins+. Why would you need to do that on an MOT?
Let it drop back to natural idle and leave it and the needle creeps back down again until eventually it's cool enough for the fan to switch off.
That's exactly what you'd expect it to do isn't it?
So can anyone tell me what the problem is? The guy on the desk at the place that did the test didn't know the reason that the tester was saying it was overheating.
