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Hi

Got problem with my heaters in my Peugeot 308, not sure where to start.

aircon works fine the whole ac system works fine just it wont heat,

any ideas
 

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Hello i started a thread some time a go that might been of some help to you

https://www.peugeotforums.com/forums/308-2007-2014-178/no-heating-after-new-thermostat-installed-336456/

First of all look for coolant leaks,check how clean the coolant is and check the coolant level.also check to the oil and generally try and rule out a possible blown head gasket just to be safe.

How is the cars temperature gauge? does it get up to operating temp and stay there steadily ? if its to cool or to hot then it points to a failed thermostat

If that's not the case then check my above thread and look for the video on how to locate the heater matrix.feel the pipes going in to the heater matrix as they should be warm after car temp is up.if its cool at a certain point then it could be blocked or air lock in the system
 
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