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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Cooling System (Mechanical) >> Cooling System 2.0L (DPAA) >> 19 Cooling System >> Cooling System/Coolant >> Coolant Level, Checking And Filling, High-Voltage System Cooling Circuit >> Notes

Coolant Level, Checking And Filling, High-Voltage System Cooling Circuit: Notes

Special tools and workshop equipment required 

Procedure 

CAUTION:

The cooling system is under pressure when the engine is warm. There is a risk of scalding due to hot steam and hot coolant.

Scalding the skin and other parts of the body is possible.

- Wear safety gloves.

- Wear protective eyewear.

- Reduce the pressure by covering the coolant expansion tank cap with a cloth and carefully opening it.

-- If necessary, fill the coolant again.

CAUTION:

There is a risk of explosion caused by cooling system leaks in the high-voltage battery. This can cause a buildup of explosive gases in the battery housing.

Explosions may cause severe bodily injuries.

- Do not add coolant when the coolant level is low in the coolant expansion tank, until the cause of the leak is corrected.

- If the indicator lamps for "low coolant" and "high-voltage battery error" turn on, move the vehicle outdoors to the specified separate parking area.

- Notify the high-voltage experts for the importer.