Cooling system anti-freeze protection and coolant level, checking: Notes
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Coolant anti-freeze, Part No. G 11 prevents frost and corrosion damage, lime deposits, and also raises the boiling temperature. For these reasons, the cooling system must be filled the entire year with anti-freeze and corrosion protection agent.
The concentration of the coolant must not be reduced by adding water, even during the warm season or in warmer climates. The coolant anti - freeze percentage must be at least 40%.
Because of its high boiling point, the coolant contributes to safe operation at high engine load, especially in warmer climates.
- Check concentration of coolant anti-freeze.
- Anti-freeze protection must be approx. -25°C (- 13°F) for the US, and -35°C (-31 F) for Canada.
- For anti-freeze protection down to approx. -40°C (-40°F), the percentage of G 11 may be increased up to 60%. The percentage of G11 must not exceed 60%, as higher amounts will decrease frost protection and cooling capacity.
- If anti-freeze protection is not adequate, drain off the quantity indicated in the table below and top up with coolant anti-freeze G 11.
COOLING SYSTEM ANTI-FREEZE PROTECTION AND COOLANT LEVEL
| Antifreeze protection down to °C (°F) | Amount | ||
|---|---|---|---|
| Actual value | Desired Specification | 4-cyl. engines | 6-cyl. engines |
| 0° (32°) | -25° (-13°) -35° (-31°) |
3.5 4.0 |
4.0 5.0 |
| -5° (23) | -25° (-13°) -35° (-31°) |
3.0 3.5 |
3.5 4.5 |
| -10 (14) | -25° (-13°) -35° (-31°) |
2.0 3.0 |
3.0 4.0 |
| -15° (5°) | -25° (-13°) -35 (-31) |
1.5 2.0 |
2.0 3.0 |
| -20° (-4°) | -25° (-13°) -35° (-31°) |
1.0 1.5 |
1.5 2.0 |
| -25° (-13°) | -35° (-31°) | 1.0 | 1.5 |
| -30° (-22°) | -35° (-31°) | 0.5 | 1.0 |
| -35° (-31°) | -40° (-40°) | 0.5 | 0.5 |
- After road test, check coolant concentration again.
- Check coolant level.
If the coolant level is too low but the antifreeze protection adequate, add the missing quantity according to the following mixing ratios: