Removing Water Tube For Auxiliary Heating - Water Tube From Front Heat Exchanger To 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 Water Tube Installation Position (Front Heat Exchanger To Heater)

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Unscrew fastening screw -2- and remove water tube holder -1- .

Fig 2: Identifying Water Tube Holder Fastening Screws
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Unclip fuel line at the two holders -arrows- .

Fig 3: Unclipping Fuel Line
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Remove water tube.
1. 3.1. 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. 3.2. Pull water tube off the heater -arrow C- and remove it.
  
  Fig 4: Pulling Water Tube
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.