Hello there. 2 and a half years ago when I bought my cinq it seemed to run very cold, so I changed the thermostat and the old one was seized open as suspected. However with the new thermostat it always seems to be around 70 degrees when driving normally and I don't know if that's normal for a cinq. When it just idles it goes up to 90 and then the fan kicks in and stays at 90 no problem so I don't suspect there's a fault in the thermostat or any of the sensors for the gauge. It just seems to get cooled to much on motorways/ carriage ways. Must note that I haven't cut out anything from the front bumper and all the blanking plates are in place. Is this normal ??
Thanks

The Cinq' thermostat is 82 degrees from memory so have another squint at the temperature gauge and see if that fits what the car's doing.

The temperature gauge is Veglia (pronounced "Vaguelia") and not a high-precision part so it's only there to give the pilot a general idea of what's happening, rather than very accurate information.

But somewhere near the stat' there should be a temperature sender. Take the sender out, descale it and clean up the spade connections so there's no undue resistance.

The bumper slots and mouldings mostly being blanks/closed is normal. In any case your car is giving the impression that it's running too cool, so it's not suggesting it needs any extra cooling vents opening up.


Ralf S.

Are your arch liner and bottom plate in place?

D

ive also found that my cinq tends to run a bit on the cooler side. with the old engine it was worse, but i still get it on the new engine. both new thermostats, so wasnt that causing the issue.
i just dont think its the best designed cooling system.

The cooling system is fine. It has an 82C thermostat which is quite cool by modern standards but that doesn't make it badly designed... it's just what the beast came out of the factory with.

It does mean there's less margin for error when reading the temperature though... so if the thermostat is weedy or there's a wiring weakness or the gauge is on the wonk a bit, it will affect how far the needle moves and that will make the gauge read "low".

If the thermostat is good, check that the temperature sender wiring and connectors are solid. They're pretty old now and any resistance in the wiring affects the voltage/signal sent to the gauge... The gauge converts the reading into movement, so clean the connector spades to buggeration and make sure the wires aren't fraying where they are crimped, if you want the correct signal getting through.

If you're really convinced the beast is running cool it may be worth hunting down an 86C thermostat. I think I read on here that they are out there.. whether from a 1.1 as fitted to Uno or Punto... I can't remember.. but an 86C will obviously elevate the normal running temperature and doesn't have any ill effects otherwise.


Ralf S.

all good advice-

It might be worth; as a contingency measure; fluffing-in an add-on gauge or display with a distinct sensor, to have an independant reference of what is going on...

Ralf S. said:

The cooling system is fine. It has an 82C thermostat which is quite cool by modern standards but that doesn't make it badly designed... it's just what the beast came out of the factory with.

Click to expand...

Should be 87C instead. Unless it is different in warmer climates.

All the thermostats I could find right now were 87C.


Can't really see it running cold unless thermostat doesn't close fully or it is really cold outside.

Sounds like the 87C is the one that Kingsize wants..


Ralf S.