Removing Directional-Control Valve

WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Directional-Control Valve Installation Position

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Release connector -arrow A- and pull it off directional-control valve -arrow B- .

Fig 2: Pulling Connector Off Directional-Control Valve
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Unscrew fastening screw -2- and remove water tube holder -1- .

Fig 3: Identifying Water Tube Holder Fastening Screws
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Drill out blind rivet -1- at the water tube.

Fig 4: Identifying Water Tube Blind Rivet
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Remove water tube holder.
1. 4.1. Screw off both fastening nuts -1- .
2. 4.2. Unscrew fastening screw -2- .
3. 4.3. Remove water tube holder -3- (-arrow-) .
  
  Fig 5: Removing Water Tube Holder
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Loosen water tube at the heater.
1. 5.1. Undo spring band clamp using assembly pliers for spring band clamps, Cayenne hose connections Nr.72-1 (-arrows A-) and push down off the adapter -arrow B- .
2. 5.2. Pull water tube down off heater -arrow C- and remove it.
  
  Fig 6: Loosening Heater Water Tube
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Unscrew fastening screws -1- on the heater.

Fig 7: Identifying Heater Fastening Screws
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Loosen water tube on directional-control valve at the top.
1. 7.1. Loosen spring band clamp using assembly pliers for spring band clamps, Cayenne hose connections Nr.72-1 (-arrows A-) and push it down off the connection -arrow B- .
2. 7.2. Pull water tube off the directional-control valve -arrow C- and swivel it downwards.
  
  Fig 8: Pulling Water Tube Off Directional-Control Valve
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Remove directional-control valve holder.
1. 8.1. Unscrew both fastening screws -1- on the directional-control valve -2- .
2. 8.2. Screw off both fastening nuts -3- on the directional-control valve holder -4- .
3. 8.3. Remove directional-control valve holder -4- (-arrow-) .
  
  Fig 9: Removing Directional-Control Valve Holder
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Remove directional-control valve.
1. 9.1. Undo spring band clamps using assembly pliers for spring band clamps, Cayenne hose connections Nr.72-1 (-arrows A-) and push down off the connections -arrows B- .
2. 9.2. Pull directional-control valve out of the moulded hoses -arrow C- and remove it.
  
  Fig 10: Removing Directional-Control Valve
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.