Cooling System, Draining and Filling
Draining and Filling
Special tools, testers and auxiliary items required
• Refractometer (T10007)
• Drip tray (VAG 1306) or drip tray for VAS 6100 (VAS 6208)
• Spring type clip pliers (VAS 5024 A)
• Cooling system charge unit (VAS 6096)
• Adapter (VAG 1274/8)
Draining
• Drained coolant must be stored in a clean container for disposal or reuse.
• Follow disposal regulations.
CAUTION!
Hot steam may escape when opening the expansion tank cap. Wear protective goggles and protective clothing to prevent damage to eyes and scalding. Cover the cap with a cloth and open very carefully.
- Open the cap for the coolant expansion tank.
- Remove the noise insulation..
- Place the (VAG 1306) or (VAS 6208) underneath.
- Open the spring clamp - arrow - and disconnect the coolant hose.
If quick acting coupling at lower radiator connection is pulled off, a large amount of coolant flows on to the bumper.
Filling
CAUTION!
Only use tap water for mixing. Well water does not have the quality necessary to ensure proper coolant function.
• On vehicles from Model Year (MY) 2008, only coolant additive G 12 plus plus conforming to TL VW 774 G may be used.
• On vehicles through MY 2007, coolant additive G 12 plus conforming to TL VW 774 F and G 12 plus plus conforming to TL VW 774 G can be used.
• G 12 plus plus may be mixed with the previous coolant additive G12 plus. Both are colored purple.
• Coolant additives marked with "Conforms to TL VW 774 G" or " Conforms to TL VW 774 F" prevent freezing and corrosion damage and scaling and they increase the boiling point. For this reason the system must be filled all year round with frost and corrosion protection additives.
• Because of its high boiling point, the coolant improves engine reliability under heavy loads, particularly in countries with tropical climates.
• Protection against frost must be assured to about -25 °C (in arctic climatic countries to about -35 °C).
• The coolant concentration must not be reduced by adding water even in warmer seasons and in warmer countries. The coolant additive portion must be at least 40%.
• If for climatic reasons a greater frost protection is required, the amount of coolant additive of can be increased, but only up to 60% (frost protection to about -40 °C), as otherwise frost protection is reduced again and cooling effectiveness is also reduced.
• The refractometer (T10007) is recommended for determining freeze protection density.
• If radiator, heat exchanger, cylinder head or cylinder head gasket is replaced, do not reuse old coolant.
Recommended Mixture Ratios
1. The quantity of coolant can vary depending upon the vehicle equipment.
2. Only use clean tap water.
- Connect coolant hose onto connection and secure using spring type clamp.
- Install the noise insulation..
Filling with Cooling System Charge Unit (VAS 6096).
- Install the (VAG 1274/8) onto the expansion tank.
- Fill the coolant circuit using the (VAS 6096), refer to --> Operating instructions for cooling system filler unit VAS 6096.
Filling without Cooling System Charger Unit (VAS 6096).
- Slowly fill the coolant up to the top marking of the hatched area - arrow - on the expansion tank.
- Install the expansion tank cap.
- Start the engine and maintain an engine speed of about 2000 Revolutions Per Minute (RPM) for approximately 3 minutes.
- Let the engine run until the fan starts.
- Turn off the heater and Air Conditioning (A/C).
CAUTION!
Hot steam may escape when opening the expansion tank cap. Wear protective goggles and protective clothing to prevent damage to eyes and scalding. Cover the cap with a cloth and open very carefully.
- Check the coolant level and top off as necessary.
• With the engine at operating temperature, the coolant level must be at the top marking of the hatched area - arrow -.
• With engine cold, the coolant level should be located approximately in the center of the hatched area.