Preliminary Work

WARNING: This page is about a different car, the 2014 Porsche Cayenne, 2013 Porsche Cayenne, 2012 Porsche Cayenne, and 2011 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Toxic substances

Danger of poisoning or suffocation
Danger of burns to the eyes and skin
→ Ventilate the work area well.

→ Never ingest or inhale.

→ Read specific information on the Hazard Sheet.

→ Wear personal protective gear.

→ Do not smoke, eat or drink in the work area.

WARNING: Highly inflammable or explosive materials

Danger of fire or explosion
→ Avoid contact with hot parts or sources of ignition.

→ Use suction to remove ignitable vapours.

→ Attach warning sign in a clearly visible position.

→ Contain leaked media using non-flammable absorbent material and put it in a container designed for this purpose for disposal in accordance with local requirements.

→ Secure collection containers/vessels to prevent them from tipping over.

Information

Escaping fuel must be soaked up using suitable binding material.
The fuel system must be depressurised before starting work on it.
Only work on the fuel system in well-ventilated rooms.
Any seals that were removed must always be replaced.
Never use sealant containing silicone or silicone spray when the injection system is open. Traces of silicone drawn in by the engine are not combusted and damage the oxygen sensors.

Relieve the fuel pressure =>
1. 1.1 Switch off ignition.
2. 1.2 Pull out the fuse for the fuel pump.
3. 1.3 Start the engine and wait until the engine starts up automatically.
Remove rear seat.
> WM 724819 REMOVING AND INSTALLING 2/3-SPLIT FOLDING REAR SEAT (EXCEPT CAYENNE, CAYENNE GTS, CAYENNE TURBO S, CAYENNE S, CAYENNE S E-HYBRID, CAYENNE TURBO, CAYENNE S DIESEL, CAYENNE (3.0)) - "Removing"
Remove the right cap (figure shows both caps) -arrows- . To do this, remove the carpeted floor. Then loosen the four fastening nuts and remove the cap.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Fastening nuts on caps
Carefully pull off the fuel supply line -arrow- at the right connection unit (place several cloths underneath to absorb the fuel that squirts out).

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Fuel supply and connection points at right connection unit
After opening the fuel line, connect the measuring tool immediately and re-insert the fuse for the fuel pump.