RENUALT LAGUNA R REG NO HEATING WORKING

[qm2]

R EG LAGUNA 1800 HEATING BLOWING COLD
WHEN IN A TRAFFIC JAM WATER RISING BUT NO LEAK
STOP LIGHT COMING ON.

 

[mattylad]

Have you checked the water level?
IF there is the proper amount of water in then you may wish to check the thermostat.

 

[snaponman]

These cars are VERY prone to the heater matrix blocking.