volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Removing and installing coolant pump > < Draining coolant
Filling with coolant
Filling with coolant
  Note
t  Use only coolant additive G 12 in accordance with TL VW 774 F. Identification: purple colour.
t  G 12 purple (in accordance with TL VW 774 F) can be mixed with the previous coolant additive G 12 red!
t  G 12 and coolant additives marked “Conforming to TL VW 774 F” prevent frost and corrosion damage, scaling and also raise boiling point of coolant. Therefore, the cooling system must be filled all year round with frost and corrosion protection additives.
t  Because of its high boiling point, the coolant improves engine reliability under heavy loads, particularly in countries with tropical climates.
t  Frost protection is required down to about -25 °C (in countries with arctic climates: down to about -35 °C).
t  The coolant concentration must not be reduced by adding water even in warmer seasons and in warmer countries. The frost protection additive must be at least 40% of mixture.
t  If for climatic reasons greater frost protection is required, the amount of G 12 can be increased, but only up to 60% (frost protection to about -40°C). Otherwise frost protection and cooling effectiveness are reduced again.
t  If radiator, heat exchanger, cylinder head or cylinder head gasket is replaced, do not reuse old coolant.
Recommended mixture proportions:
   
Frost
protection to
Anti-freeze
proportion
G 12 → NoteWater → Note
-25 °C
-35 °C
40 %
50 %
3.2 l
4.0 l
4.8 l
4.0 l

1)  The quantity of coolant can vary depending upon vehicle equipment.
   
–  Close drain plug -arrow-.
–  Install noise insulation tray → General body repairs, exterior; Rep. Gr.50.
With cooling system filler unit -VAS 6096-
–  Screw adapter for cooling system tester -V.A.G 1274/8- onto expansion tank.
–  Fill coolant circuit using cooling system charge unit -VAS 6096- → Operating instructions for cooling system charge unit 6096.
Without cooling system filler unit -VAS 6096-
  A10-0118
–  Slowly fill coolant to upper marking of shaded field on expansion tank.
–  Fit expansion tank cap.
–  Start engine and maintain an engine speed of about 2000 rpm for about 3 minutes.
–  Run engine until radiator fan cuts in.
  WARNING
Steam may escape when expansion tank is opened. Wear protective glasses and clothing to avoid eye injuries and scalding. Cover cap with cloth and open carefully.
–  Check coolant level and top-up if necessary. When the engine is at normal operating temperature, the coolant level must be at the upper mark; when the engine is cold, in the middle of the shaded field.
  N19-0343

Removing and installing coolant pump > < Draining coolant