Coolant, draining and filling: Refilling
WARNING: This page is about a different variant/trim than selected.
NOTE:
- To satisfy TL VW 774 D , only G 12 may be used as a coolant additive. Color coding: red.
- Only mix G 12 with clean water. Never mix G 12 with any other coolant additives!
- If the liquid in the coolant expansion tank is brown, this means that G 12 was mixed with another coolant and the coolant has to be changed.
- G 12 and additives which are labeled satisfies TL VW 774 D prevent damage from freezing and corrosion and prevent lime deposits. They also raise the boiling point. For these reasons, the cooling system must be filled with antifreeze and anti-corrosion agents throughout the year.
- The coolants higher boiling point will contribute to operational reliability under higher engine loads, especially in tropical climates.
- The antifreeze protection must go down to 25 ° C (in Arctic climates down to 35 ° C).
- The concentration of the coolant may not be reduced by topping up during the warm seasons or in warm countries. The proportion of additive must be at least 40%.
- If the climate requires stronger antifreeze protection, the portion of G 12 can be increased, but never above 60% (antifreeze protection down to about 40 ° C), otherwise the antifreeze protection will begin to decrease again and the cooling effect will be reduced.
- Do not reuse the same coolant if the radiator, heat exchanger, cylinder head or cylinder head gasket have been replaced.
Recommended mixing ratios:
| Protection to | Antifreeze | G 12 * See note |
Clean Water * See note* See note |
| -25 ° C -35 ° C | 40% 50% | 3.6 liters 4.5 liters | 5.4 liters 4.5 liters |
* The amount of coolant may vary depending on the vehicle accessories.
* Use only clean water for mixing.
- Tighten drain plug into radiator return.
- Push coolant hose onto oil cooler connection and pull it tight.
- Fill with coolant up to upper mark on cross-hatched area on coolant expansion tank.
- Close coolant expansion tank.
- Expose heater controls and turn off air conditioning if necessary.
- Start engine and run at approximately 2000 rpm for about 3 minutes.
- Keep engine running until fan starts.
- Check coolant level and fill as necessary.
The coolant level must be within the cross-hatched region when the engine is running warm. It must be above the lower mark if the engine is cold.