Volkswagen Workshop Service and Repair Manuals

Note:

The cooling system is filled all year round with a mixture of water and G 11 aditive. G 11 and coolant additives marked as being in accordance with TL VW 774 4B prevent freezing and corrosion damage, the formation of scale and, in addition, they raise the boiling point of the coolant.

For these reasons, the cooling system must be filled all the year round with this mixture. Due to the higher boiling point, the coolant is an aid to operating efficiency when the engine is operating at full load, particularly in tropical climates.

Recommended mixture ratios:

     1)     For countries with cold climate

Draining

• ‒ Set heating controls to "warm" (heater valve fully open).
• ‒ Open cap on expansion tank/radiator.
• ‒ → Drain coolant:
• ‒ either via coolant hoses -1-
• ‒ or via flange for thermostat -2-

Filling

• ‒ → Fill up with coolant as far as max. mark on expansion tank/radiator.
• ‒ Seal expansion tank / radiator.
• ‒ Run engine until fan starts up.
• ‒ Check coolant level and top up with coolant if necessary. When engine is warm, coolant level must be somewhat above max. mark or between max. and min. mark when engine is cold.