Preliminary work

→ Ventilate the work area well.

→ Never ingest or inhale.

→ Read specific information on the Hazard Sheet.

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

→ Avoid contact with hot parts or sources of ignition.

→ Use suction to remove ignitable vapors.

→ Attach warning sign in a clearly visible position.

Information 

• Absorb any escaping fuel using a suitable binding material or a cloth  .
• Cloths which have absorbed fuel must be disposed of according to the applicable national laws  .
• The fuel system must be depressurized before starting work on it  .
• Only work on the fuel system in well-ventilated rooms  .
• Any seals which have been removed must always be replaced  .
• Do not use any 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  .

1. 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.
2. Remove rear seat. → REMOVING 1/3-SPLIT FOLDING REAR SEAT or REMOVING 2/3-SPLIT FOLDING REAR SEAT - section on "Removing"
3. 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.
   Fig 1: Locating Caps

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
4. Carefully pull off the fuel supply line -arrow-  at the right connection unit (place several cloths underneath to absorb the fuel that squirts out).
   Fig 2: Locating Fuel Supply And Connection Points At Right Connection Unit

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
5. After opening the fuel line, connect the measuring tool immediately and re-insert the fuse for the fuel pump.