Draining and filling the cooling system

From model 1985, the thermostat housing is equipped with a fitting that serves to remove air from the cooling system. This fitting is closed with a threaded plug.

Draining fluid and filling the system

1. When removing air from the cooling system, unscrew the plug of the air removal pipeline.

2. When filling the system, this plug is screwed before the end of filling the system, when the coolant begins to flow out through the fitting that serves to remove air.