Top up coolant!
Slacken vent plug (2) on expansion tank.
On cars with latent heat accumulators, do not turn on ignition when filling cooling system.
NOTE:
Turn on ignition. Set heater control to maximum temperature. Set blower to low level. This opens the heating valves and sets the auxiliary water pump in operation.
Perform filling operation slowly.
Fill up expansion tank fully and wait until bubble-free coolant emerges from vent plug. Tighten down vent plug.