The Mégane II Owners' Club

Hi all I've got a heater problem and just wondered if anyone else has had if, my megane cc with climate control heater only blows hot air through when digital display shows 27 but as soon as you turn it down ie 26 it goes cool and doesn't change in temperature all the way down to 15, I've replaced pollen filter which was completely blocked and hovered loads of leaves out but to still no avail, any suggestions or solutions would be gratefully received
Thanks

Could be several things.

Something preventing the air blender flap from opening/closing properly,
the actuator motor for above on its way out,
faulty temperature sensor,
loose connectors/wiring from Control Unit to various components associated with heating/ventilation system.

Either way, it'll be a fiddly job and I would suggest you take the car to a garage to get it sorted by someone who is used to doing that type of work.