Suspension Hose/Line: Service and Repair
WM 430755 Replacing distributor (PDCC)
Preliminary work
1. Lift the vehicle. -> 4000V000 Lifting the vehicle
2. Remove engine guard. -> 108019 Removing and installing engine guard 108019 Removing and installing engine guard (underbody panelling)
Warning notes
CAUTION
Twisted, chafed and kinked steel flexi-pipes and/or expansion hoses.
- Risk of PDCC system failure due to reduced line cross sections and leaking lines.
-> Steel flexi-pipes and expansion hoses must not be disconnected or kinked.
-> Always replace steel flexi-pipes and expansion hoses if you suspect that they have been damaged.
-> Twisted steel flexi-pipes and expansion hoses must not be fitted.
-> Steel flexi-pipes and expansion hoses must have sufficient clearance from other components.
-> Steel flexi-pipes and expansion hoses must only be fitted using the mounting elements provided for this purpose. Do not use tie-wraps or screw-type clamps.
Information
Before starting to work on the PDCC system, always clean the underbody or at least clean the system components you will be working on. Ensure absolute cleanliness at all times. In other words:
- Clean the system components to be removed using a power washer, for example. Ensure that the high-pressure spray is at least 50 cm away from the component (risk of damage to electric lines, connectors and contacts).
- Before loosening the hydraulic connections, the areas around the connections must also be cleaned carefully (e.g. using a brush and/or a lint-free cloth).
- If you intend to use the component again, the openings must be sealed immediately with suitable stoppers.
- If you are using new components, the stoppers must only be removed immediately before fitting.
Replacing distributor
Information
Exercise extreme care when loosening the screws on the distributor so as not to damage the two mounting points on the distributor (front-axle final drive).
Only loosen the two mounting points and the three lines on the distributor. The side stopper must not be opened.
Use correct tightening torques.
If coolant hoses come into contact with Pentosin, thoroughly clean them with water IMMEDIATELY.
For more information, see: -> 4303AW Safety requirements for Porsche Dynamic Chassis Control (PDCC) Service Precautions-> 4303IN Component arrangement for Porsche Dynamic Chassis Control (PDCC) 4303IN Porsche Dynamic Chassis Control (PDCC) component arrangement
If a component is replaced, the reservoir (PDCC) must always be replaced as well.
The engine must be switched off. (The pressure in the PDCC system is high when the engine is running.).
1. Use a suitable collecting container and carefully remove the lines -1, 2, 3- from the distributor.
PDCC distributor
2. Remove the distributor -4- from the front-axle final drive.
3. Fit the new distributor on the front-axle final drive and secure the lines by tightening them to the prescribed torque. -> 430755 Replacing distributor (PDCC) - section on "General warning notes"-> 4300TW Tightening torques
Subsequent work
1. Complete the following steps in sequence using the PIWIS System Tester by selecting PDCC ]] System replacement ]] Replace distributor [[. -> 4303AW Safety Requirements for Porsche Dynamic Chassis Control (PDCC) Service Precautions
1.1. Set valve timing
1.2. Bleed the system -> 430307 Bleeding Porsche Dynamic Chassis Control (PDCC) 430307 Bleeding Porsche Dynamic Chassis Control (PDCC)
1.3. Carry out a system test.
2. Fit engine guard. -> 108019 Removing and installing engine guard 108019 Removing and installing engine guard (underbody panelling)