Porsche Cayenne V6 2008 Service Information page 24

Engine – Cayenne V8
The oil pan is designed in two parts and has an upper and lower part.
The oil-water heat exchanger and the oil filter are fitted directly on the
upper part of the oil pan. To ensure a lightweight design, the windage
tray, the oil return collection tank and the suction pipe are all together in
a plastic housing fitted in the oil pan.
The oil pan wall is very thin so as to keep the weight as low as possible.
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