Removing Heat Exchanger

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: Overview Of Heat Exchanger

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Press together the air duct from above and pull out of the air-conditioning unit -arrow- .

Fig 2: Pulling Out Air Duct From Air-Conditioning Unit
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Unscrew the fastening screws -1- and tilt the auxiliary air-conditioning unit inwards on the top side.

Fig 3: Tilting Auxiliary Air-Conditioning Unit Inwards
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Remove both servo motors for air flow. → Removing Servo Motor
Press together the spring band clamps with the circlip pliers for spring band clamps, Cayenne hose connections 72-1 -arrows A- and pull off the coolant hoses from the heat exchanger -arrows B- .

Fig 4: Releasing Coolant Hoses
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Unscrew fastening screws -2- and open the upper housing section -arrow A- .

Fig 5: Removing Heat Exchanger
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Take out heat exchanger -arrow B- .