Renault Clio heater blows cold

Car: Renault Clio
Model Year: 1994
Categories: Leaks & Noises
the heater blows hot for about 1min then will blow cold. I suspect a blocked heater matrix unless anyone knows different?
Is replacing it matrix a nightmare job?
Posted: Oct 7, 2010 (14 years ago)
Other possible causes , but could be matrix which I think is a dash out job on that car .
Posted Oct 7, 2010 (14 years ago)
check the cooling system is bled through properly and that there are no leaks,take thermostat out and test
Posted Oct 7, 2010 (14 years ago)
Try reverse flushing matrix and then bleed cooling system.
Posted Oct 7, 2010 (14 years ago)

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