Draining/Filling

Cooling System, Draining/Filling

Draining

CAUTION! Coolant/antifreeze must not be reused when replacing engine, cylinder head, cylinder head gasket, radiator and heater core.

- remove cap from expansion tank
- remove drain plug from coolant pipe, see SYSTEM COMPONENT LAYOUT Mechanical Diagrams

NOTE: Direct the coolant when draining by slightly twisting the coolant pipe.

Filling

The cooling systems of all Volkswagen vehicles are filled at the factory wit a mixture of water and an antifreeze solution (G 11) with corrosion inhibitors. This coolant mixture should be used year-round.

Phosphate-free anti-freeze prevents frost corrosion damage, the formation of chalk and in addition, it raises the boiling point of water. Due to the higher boiling point the coolant is an aid to operational efficiency, When the engine is operating under full load, particularly in tropical climates.

When replacing coolant/antifreeze solution in all Volkswagen models, all model years, use phosphate-free coolant/antifreeze ZVW237 102.

Recommended Mixtures:

- install coolant pipe drain plug
- slowly fill coolant expansion tank with coolant up to max marking (arrow)
- install coolant expansion tank cap
- run engine until cooling fan (V7) comes on
- check coolant level. If necessary, top off up to the marking. With engine at operating temperature coolant level should be slightly above max mark. With engine cold, the coolant level should be between the min and max marks.