Removing Circulating Pump For Auxiliary Heater

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 Auxiliary Heater Circulating Pump Installation Position

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Information

Before disconnecting the water lines, it is essential to observe the safety instructions in → WM 1001AW The most important working regulations and warning notes

Drain coolant. → Draining Coolant
Clamp the two upper hoses -b- using a hose clamp 3094 -d- .

Fig 2: Identifying Upper And Lower Hoses Clamps
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Clamp the two lower hoses -c- using a hose clamp 3094 -d- .
Disconnect circulating pump plug connection.
1. 4.1. Open line bracket -arrow A- and remove line -arrow B- .
2. 4.2. Remove plug connection on holder -arrow C- .
3. 4.3. Release plug connection -arrow D- and disconnect it -arrows E- .
  
  Fig 3: Disconnecting Circulating Pump Plug Connection
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Unscrew fastening nut -1- and remove water tube from threaded bolt -arrow- .

Fig 4: Loosening Water Tube Bolt
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Remove circulating pump for auxiliary heater.
1. 6.1. Loosen spring band clamps using assembly pliers for spring band clamps, Cayenne hose connections Nr.72-1 (-arrows A-) and slide them down off the connections -arrows B- .
2. 6.2. Pull water hoses off the circulating pump -arrows C- .
3. 6.3. Unscrew fastening screw -1- and open clamp -2- (-arrow D-) .
4. 6.4. Remove circulating pump for auxiliary heater -3- (-arrow E-) .
  
  Fig 5: Removing Auxiliary Heater Circulating Pump
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.