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post #1 of 11 (permalink) Old 22nd March 2007 Thread Starter
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Clio - Heater not woking!

Hi all,

I've just signed up to this excellent forum site where Renault car owners can discuss issues and help one another with their problems.

I bought a M reg Renault Clio RN, MK1, 1.2L last year and when winter had arrived, I had my car serviced and had the water/coolant changed with new anti-freeze put in. I had this done by a local garage person and he couldn't find a bleeder on the car and had to maually bleed the air out himself and everything was in working order i.e. the fan does come on. I then drove my car for a while and noticed no hot/warm air was coming into to my car. It comes for about 3 seconds and the disappears again and returns to cold air!

I would reallyt like to ask what my main gripe is here??! Where is the bleeder and do the MK1 Clio's have a bleeder?
Is there a problem with my matrix? I have been advised to use radflush?!

Please help as it's freezing in my car!!!!!!
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How do you sort out the rusting? Bodywork madnoel10 6 1547 25th March 2007 10:39 PM
Clio - Heater not woking! Clio davieclio86 10 7993 22nd March 2007 11:44 PM
No heat in my car! Heating & cooling chris m 9 2467 22nd March 2007 11:43 PM
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post #2 of 11 (permalink) Old 23rd March 2007
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post #3 of 11 (permalink) Old 19th February 2008
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when the car is warmare the two heater pipes under the bonnet going into the car warm if not the heatermatrix my be blocked when the coolent was dropped out , also if the cooling system has not been bleed up corret there may be an air block the bleed screw are normally on top of the radiatot top corner,
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post #4 of 11 (permalink) Old 22nd February 2008
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Unhappy Clio Heater Matrix

Early Clio Matrix very guilty of clogging up, both heater hoses in the engine bay will be warm to touch but coolant will not be going through heater ,it only goes in ,down one side and out the other hose, this engine is 1171cc E type and is easy to fill with coolant ,you can try an engine flush, but i doubt it, but best option is to take both heater hoses off engine and put a garden hose on each pipe to reverse flush through heater, but in almost every occasion the matrix will have to be renewed, this corrosion is caused by infrequent coolant changes and these smallbore pipes get clogged solid, I have fitted 2 new matrix units for this reason, not recommended, but try everything else first
hope this helps MK 1 Clio heater system is great when matrix is clear
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Last edited by genisis; 22nd February 2008 at 10:45 PM.
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post #5 of 11 (permalink) Old 11th April 2011
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Re: Clio - Heater not woking!

i have got a 57 plate clio mark 2 shape,i have just had a head gasket done on it and i hear water gurgling through the heater matrix,is this normal for a clio? it is a 1.2 8 valve engine.
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clio , heater , woking

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