Coolant: Checking The Level And Antifreeze Content

→ Ventilate the work area well.

→ Never ingest or inhale.

→ Read specific information on the Hazard Sheet.

→ Do not smoke, eat or drink in the work area.

→ Let the fluid cool down.

→ Wear personal protective gear.

→ Disconnect power supply to the drive motor of components or to the battery.

→ Do not start the engine after relieving the system pressure.

→ Fill the cooling system correctly and bleed it before starting the engine.

Information 

• The coolant filled in at the factory is intended to suffice for the entire service life. As long as the coolant is not contaminated by foreign bodies or other fluids it need not be changed  .
• Different coolant additives must not be mixed and doing so may damage the cooling system. Only use original Porsche coolant additives  .
• The coolant must be set to antifreeze protection of -37 °C. This corresponds to a mixing ratio of 50: 50 (coolant additive: water). This mixing ratio provides optimum corrosion and antifreeze protection  .
• Coolant additives, coolants and cleaning agents must be disposed of according to the respective, applicable national laws  .
• Seals in the cooling system must be replaced by new ones following disassembly  .

Information 

Test conditions for checking engine coolant level =>

• Engine cold 
• Vehicle parked horizontally on level ground 

1. Open the maintenance cover -1-  .
   Fig 1: Opening Engine Maintenance Cover

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Carefully open the cap on the coolant reservoir. Unscrew the cap in an anti-clockwise direction.
   Fig 2: Turning Coolant Reservoir Cap

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Check antifreeze content with a commercially available antifreeze tester. If it is lower than -37 °C, it must be adjusted accordingly. The coolant level must not drop below the minimum mark.
   Fig 3: Checking Antifreeze Content

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Information 

   • The following table specifies how much coolant must be replaced by pure antifreeze in order to adjust the freezing point to -37 °C  .

   Measured antifreeze protection in °C	Antifreeze quantity to be added (in liters)
   - 5	9
   - 10	8.5
   - 15	7.5
   - 20	7
   - 25	5
   - 30	3.5
   - 35	1.5

   Checking engine coolant level

4. Open the maintenance cover -1-  .
   Fig 4: Opening Engine Maintenance Cover

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
5. Check the engine coolant level. If necessary, fill the coolant reservoir with coolant to the maximum marking. If there is considerable coolant loss, the cause must be investigated.
   Fig 5: Identifying Coolant Reservoir

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6. Carefully open the cap on the coolant reservoir if necessary. Unscrew the cap in an anti-clockwise direction.
   Fig 6: Turning Coolant Reservoir Cap

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
7. Screw cap back on the coolant reservoir.
   Fig 7: Turning Coolant Reservoir Cap

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
8. Close the maintenance flap.