Operation CHARM: Car repair manuals for everyone.
Home >> Porsche >> 2010 >> Cayenne Turbo S (9PA) V8-4.8L Turbo >> Repair and Diagnosis >> Steering and Suspension >> Suspension >> Suspension Control ( Automatic - Electronic ) >> Service and Repair >> 430307 Bleeding Porsche Dynamic Chassis Control (PDCC)

430307 Bleeding Porsche Dynamic Chassis Control (PDCC)


WM 430307 Bleeding Porsche Dynamic Chassis Control (PDCC)

Bleeding

Bleeding vehicles with PDCC

NOTICE

Aggressive fluids

- Risk of damage to components and surfaces

-> Do not spill fluids.
-> In the event of contact, wash the component or surface with water.
-> Replace components that are already damaged.

WARNING

Caustic fluids

- 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.

Information

Overfilling the system can cause Pentosin CHF 202 to overflow onto coolant hoses and other components. The engine must be run for approx. 20 seconds prior to the fluid level check. Check the fluid level.

Information

The reservoir must always be replaced if individual or multiple components, such as the flow distributor, tandem pump, valve blocks (FA/RA), anti-roll bars (FA/RA) are replaced.

If system faults still occur after replacing a component (another component is defective), the reservoir does not have to be replaced again.

Only Pentosin CHF 202 may be used in the reservoir. Pentosin CHF 202 can be ordered using the following part number: 1-litre container: 000.043.203.33.

The reservoir must not be sucked dry. This is likely to damage the tandem pump and contaminate the system.

The reservoir cap has a dipstick with -MIN/MAX markings-. The markings are for a fluid level on a cold engine (approx. 20 °C).





Dipstick for steering hydraulics

1. Open the engine compartment lid and remove the left cover. => 700219 Removing and installing front trim (engine compartment) Open the reservoir. => 4303AW Safety requirements for Porsche Dynamic Chassis Control (PDCC)
2. Fill the reservoir with Pentosin until the fluid level remains fixed.
3. Briefly start the engine, let it run for approx. 1 second and add more Pentosin. During this process, the fluid level in the reservoir may drop quickly. This depends on the quantity of oil required. Constantly check the oil level and top up with Pentosin as required. Repeat this process several times.
If the fluid level in the reservoir does not fall any further when the engine is briefly turned over, start the engine again and let it run at idle speed.
4. Check the fluid level several times at idle speed. If the fluid level is still dropping, keep topping it up until the level remains constant in the reservoir.
If the oil level drops to the bottom of the tank, or if several air bubbles rise to the surface and/or a significant amount of foam forms in the reservoir, air is still present in the hydraulic system. It is quite normal for a few air bubbles to appear in the reservoir immediately after topping up.
5. Switch off the engine and set the correct fluid level. The fluid level must be between the -MIN/MAX markings-.





Dipstick for steering hydraulics

7. After completing assembly, move the vehicle into an open area to bleed it. => 4303AW Safety Requirements for Porsche Dynamic Chassis Control (PDCC)
8. Close the doors and lids. Connect the PIWIS Tester to the vehicle.
9. Start the engine and set the levelling system to normal level.
10. One mechanic should sit in the vehicle and select "Drive links" >> "Bleed" in the Cayenne PDCC menu in the PIWIS Tester. The vehicle body will roll to a significant degree.
A second mechanic must ensure complete safety around the vehicle.
11. Repeat the bleeding process twice. Then open the engine compartment lid and reservoir. Check the fluid level and hydraulic fluid while the engine is running. Top up with the required amount of oil. The fluid level must not drop and there should be only a few air bubbles circulating. There must be a significant reduction in the amount of air bubbles and/or foam formation compared to Step => 4.
12. Switch off the engine and set the correct fluid level. The fluid level must be between the -MIN/MAX markings-.
13. If the fluid level is dropping, the bleeding process must be repeated. If the fluid level continues to drop, the system must be visually inspected again for signs of leaks. Repeat the bleeding process following repairs.
14. After completing the tasks, fit the relevant components and close the engine compartment lid.
pro multis · About Operation CHARM