Jetta GL L4-2.0L (AVH) (2001)
See: Service Precautions
The correct coolant level is important for proper functioning of the cooling system.
Therefore, check the coolant level regularly:
- preferably at every fuel filling when you check the oil.
To obtain an accurate reading, the engine must be switched off.
Since the expansion tank is transparent, the cap need not be removed to check the coolant level.
The coolant level must be between the reference lines when the engine is cold and can be slightly above the upper line if the engine is warm.
The expansion tank in your vehicle is equipped with an electric coolant level checking device.
When the coolant level is too low, the warning light will blink until the coolant level has been restored to normal.
Coolant Losses:
Coolant losses may indicate a leak in the cooling system. In the event of coolant losses, the cooling system should be inspected immediately by your
authorized VOLKSWAGEN dealer. It is not enough merely to add coolant.
In a sealed system, losses can occur only if the boiling point of the coolant is exceeded as a result of overheating.
Adding Coolant:
WARNING
The cooling system is under pressure and can get very hot. Reduce the risk of scalding from hot coolant by following these steps.
^ Turn off the engine and allow it to cool down.
^ Protect face, hands and arms escaping fluid and steam by covering the cap with a large, thick rag.
^ Turn the cap slowly and very carefully in a counter-clockwise direction while applying light, downward pressure on the top of the cap.
^ To help avoid being burned, do not spill antifreeze or coolant on the exhaust system or hot engine parts. Under some conditions, the ethylene
glycol in engine coolant can catch fire.
If, in an emergency only water can be added, the correct ratio between water and antifreeze must be restored as soon as possible.
It you have lost a considerable amount of coolant, then you should add cold antifreeze and cold water only when the engine is cold.
Do not fill coolant above the upper reference line.
Note
Coolant pollutes the environment and could cause an engine fire. Excess coolant will be forced out through the pressure relief valve in the cap
when the engine become hot.
Screw cap on again tightly.
WARNING
Antifreeze is poisonous. Always store antifreeze in its original container and well out of the reach of children. If you drain the coolant, it must
be caught and safely stored in a proper container clearly marked "poison."
Drained coolant should not be reused. Always dispose of used coolant observing all environmental regulations.
Radiator Fan:
The electric radiator fan is controlled by thermo-switches that switch on and off depending on coolant and engine compartment temperatures.
WARNING