Ride Control Solenoid Valve: Service and Repair
WM 430419 Removing and installing valve block
Preliminary work
Preliminary work for removing and installing front-axle valve block
Information
- Please check the arrangement of components in the PDCC system. -> 4303IN Porsche Dynamic Chassis Control (PDCC) component arrangement 4303IN Porsche Dynamic Chassis Control (PDCC) Component Arrangement
- Please observe safety requirements for the PDCC system. -> 4303AW Safety requirements for Porsche Dynamic Chassis Control (PDCC) Service Precautions
1. Remove the front right wheel. -> 440519 Removing and installing wheel - section on "Removing" Removal and Replacement
2. Remove front wheel housing liner at the right. -> 505619 Removing and installing front wheel housing liner - section on "Removing" Service and Repair
Preliminary work for removing and installing rear-axle valve block
Information
- Please check the arrangement of components in the PDCC system. -> 4303IN Porsche Dynamic Chassis Control (PDCC) component arrangement 4303IN Porsche Dynamic Chassis Control (PDCC) Component Arrangement
- Please observe safety requirements for the PDCC system. -> 4303AW Safety requirements for Porsche Dynamic Chassis Control (PDCC) Service Precautions
1. Raise the vehicle. -> 4X00IN Lifting the vehicle Service and Repair
Removing front-axle valve block
NOTICE
Incorrect line routing
- Risk of damage to lines and hoses
- Malfunction and fault memory entry on control unit
-> Avoid small bending radii when routing lines.
-> File down edges and burrs in the routing area or mask them with adhesive tape.
-> Maintain a sufficient distance from components exposed to high temperatures while driving.
NOTICE
Voltage peaks
- Risk of damage to electrical load or to the control unit
-> Remove remote control and switch off ignition before disconnecting or removing electrical load.
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.
Information
If a component is replaced, the reservoir must always be replaced as well. -> 430955 Replacing reservoir (PDCC) Service and Repair
View of FA valve block
1. Unclip the combination connector -arrow-.
Combination connector
2. Disconnect the hydraulic connections (use a suitable collecting container). Close off the lines using suitable and clean (!) stoppers -arrows-.
Disconnecting PDCC lines
3. Unscrew fastening screws on the valve block -arrows- and remove the valve block.
Valve block mounting
4. When replacing the valve block wiring harness: Number the valves and pressure sensors (using a felt-tip pen, for example). Push back the insulator slightly and assign the cable colours to the corresponding valves/pressure sensors.
5. Remove the wiring harness. Pull off the connectors on the valves/pressure sensors. Fit the wiring harness onto the new valve block.
Removing rear-axle valve block
NOTICE
Incorrect line routing
- Risk of damage to lines and hoses
- Malfunction and fault memory entry on control unit
-> Avoid small bending radii when routing lines.
-> File down edges and burrs in the routing area or mask them with adhesive tape.
-> Maintain a sufficient distance from components exposed to high temperatures while driving.
NOTICE
Voltage peaks
- Risk of damage to electrical load or to the control unit
-> Remove remote control and switch off ignition before disconnecting or removing electrical load.
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.
Information
If a component is replaced, the reservoir must always be replaced as well. -> 430955 Replacing reservoir (PDCC) Service and Repair
PDCC valve block on rear axle
1. Remove the valve block cover -arrow-.
Rear-axle valve block cover, PDCC
2. Unclip the wire harness -1- for the valve block -3- from the bracket -2-.
Electric plug connection
3. Release electric plug connection -4- ( -a- ) and pull it off -A-.
4. Remove hydraulic lines -1- on the valve block -2- on the rear axle.
Hydraulic lines on rear-axle valve block
5. Unscrew fastening screws -1- on the valve block -2- and carefully remove the valve block.
Removing valve block
6. When replacing the valve block wiring harness: Number the valves and pressure sensors (using a felt-tip pen, for example). Push back the insulator slightly and assign the cable colours to the corresponding valves/pressure sensors.
7. Remove the wiring harness. Pull off the connectors on the valves/pressure sensors. Fit the wiring harness onto the new valve block.
Installing front-axle valve block
1. Installation is performed in reverse order. -> 430455 Replacing valve block - section on "General warning notes" Observe correct tightening torques. -> 4300TW Tightening torques
Installing rear-axle valve block
1. Installation is carried out in reverse order.
Observe correct tightening torques. -> 4X00IN Tightening torques for levelling system [1][2]Specifications
Subsequent work
Subsequent work for removing and installing front-axle valve block
1. Fit front wheel housing liner at the right. -> 505619 Removing and installing front wheel housing liner - section on "Installing" Service and Repair
2. Fit the front right wheel. -> 440519 Removing and installing wheel - section on "Installing" Removal and Replacement
3. Bleed the system. -> 430307 Bleeding Porsche Dynamic Chassis Control (PDCC) 430307 Bleeding Porsche Dynamic Chassis Control (PDCC)
4. Check the hydraulic fluid level and top up if necessary. -> 430501 Checking fluid level (PDCC) 430501 Checking fluid level (PDCC)
5. Start the PDCC system.
To do this, connect the Porsche System Tester and proceed as follows:
- Select PDCC control unit.
- Select the "Maintenance/repairs" menu.
- Select "PDCC start-up".
The system start-up is performed automatically. In other words: system activation and calibration as well as testing runs automatically.
Subsequent work for removing and installing rear-axle valve block
1. Bleed the system. -> 430307 Bleeding Porsche Dynamic Chassis Control (PDCC) 430307 Bleeding Porsche Dynamic Chassis Control (PDCC)
2. Check the hydraulic fluid level and top up if necessary. -> 430501 Checking fluid level (PDCC) 430501 Checking fluid level (PDCC)
3. Start the PDCC system.
To do this, connect the Porsche System Tester and proceed as follows:
- Select PDCC control unit.
- Select the "Maintenance/repairs" menu.
- Select "PDCC start-up".
The system start-up is performed automatically. In other words: system activation and calibration as well as testing runs automatically.