01 Renault Clio no hot air

Polo_Cluvie

Hi guys could do with some ideas on this. My daughters car has no hot air. I've changed the thermostat and flushed out the heater matrix. I've bled I've kissed it's proverbial but still no heat. Last yr I done the head gasket and timing belt wp while I was at it and had hot air up to recently. All pipes are not and engine temp is normal.. I'm out of ideas..
Any help appreciated

Irish Steve

had the same problem on a different vehicle recently, closer investigation found that the cable that moves the air mix flap had broken the outer sleeve at one end, so turning the temperature dial was doing nothing to the flap, permanent cold air, the fix was to replace the cable that connects the dial to the flap, so that it moved the flap again. if there's heat getting to the heater matrix and both heater pipes are hot, then you're looking for something like this.

Polo_Cluvie

Thanks for your input Steve but I don't think that's the issue with my car. I can detect a slight change in temp when I move the temperature dial..this issue has me baffled

biko

Could it be a mechanical obstruction? Leaves and other crap in the vents? Does dash warm up?

Polo_Cluvie

Thanks biko I will have a look but I doubt it

rex-x

These always clog up the heater matrix with corrosion, only solution is to replace it which is a total pain in the ass!