Cooling System: Testing and Inspection

Checking cooling system





Checking

Checking coolant antifreeze content and fluid level

Information
^ The coolant filled in at the factory is intended for lifetime cooling and, thus, need not be changed.

Warning
Hot fluid
^ Danger of scalding

- Let the fluid cool down.
- Wear personal protective gear.

1. Check antifreeze content.
1.1. Unscrew cap -1- on the coolant expansion tank.





Cap on coolant expansion tank

1.2. Check antifreeze content using a commercially available antifreeze tester.
1.3. If it is below -35° C, correct the antifreeze content by increasing the proportion of pure coolant accordingly.





Antifreeze tester

Warning
Caustic fluid
^ Danger of chemical burns

- Avoid contact with caustic fluid.
- Wear personal protective gear.
- Ensure that there is good ventilation.
- If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.

Caution
Mixing coolant.
^ Corrosion of components and flocculation of coolant.

- Do not mix Porsche coolant with other coolants.
- When replacing or topping off coolant, use only original Porsche coolant.

2. Check the engine coolant level and correct it if necessary.
2.1. The engine coolant level must be between the Min and Max markings. If this is not the case, either drain off or top off coolant.

Checking the cooling system for leaks

Warning
Caustic fluid
^ Danger of chemical burns

- Avoid contact with caustic fluid.
- Wear personal protective gear.
- Ensure that there is good ventilation.
- If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.

Warning
Hot fluid
^ Danger of scalding

- Let the fluid cool down.
- Wear personal protective gear.

1. Check the cooling system for leaks.
1.1. Connect a cooling system tester cooling system tester WE 1069 to the coolant expansion tank.





Cooling system tester WE 1069 (symbolic representation)

1.2. Produce a test pressure of 1.8 bar absolute using a pump.
1.3. Visually check all hose and line connections for leaks.
2. Carry out the required repair work to seal any leaks you find.
3. Carefully open the adapter on the tester - the system is pressurized.

Cleaning the cooling air guides
1. Check the cooling air ducts and radiator for foreign bodies, e,g, leaves.
1.1. If necessary, clean the cooling air ducts and radiator surfaces through the openings in the front apron using a vacuum cleaner and nozzle.
Vacuum cleaner nozzle Nr.160 should be used.





Cooling air openings

Notice
Radiator surface (vanes) dirty/soiled
^ Engine overheating due to lack of cooling performance
^ Risk of damage to radiator surface

- Clean radiator surface regularly.
- Do not use a high-pressure steam cleaner.

2. Never use a high-pressure steam cleaner.
2.1. High-pressure steam cleaner can cause additional particles of dirt to attach to the radiator surfaces and the engine can overheat due to reduced cooling performance.