Technical Tips > Interiors - Trim - Seats - Carpets

Heat Insulation

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Lefty:
I agree wit vets it the cabin temp in my c3 was high until I by passed the heater, now it improved. Haven't worked out why vets need a heater as the heat from the motor keeps it warm inside in winter

Cheers lefty

sirfixalot:
The main  source of heat is where the heater pipes go up under AC into cabin there is a cavity about 2 " x 1" which lets hot air in. Hot wire fan motor on high & check for leaks into engine bay. If car is LHD there is a small strip of foam which isolates the fan duct area from the area where pipes for heater come into cab. This will allow heat to rise up pipes & then leak into air duct into cab. You can block off where pipes go into cab with high density foam will help, to fix properly remove inner & outer heater AC boxes & seal with windscreen sealer. Replace the internal strip of foam & re- assemble.Sandwich foam between inner & outer boxes & firewall

ABinAUS:
thx

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