Removing Fuel Collection Pipe

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 Porsche Panamera, 2015 Porsche Panamera, 2014 Porsche Panamera, 2013 Porsche Panamera, and 2012 Porsche Panamera. 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 Are or explosion
- Avoid contact with hot parts or sources of ignition.
- Use suction to remove ignitable vapors.
- 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.

NOTIFICATION

Dirt on injection system components

Material damage
Rough-running engine
Bad exhaust emissions
- Thoroughly clean connection points and adjacent areas before loosening them. If the engine is very dirty, wash it before starting disassembly work.
- Lay removed parts on a clean surface and cover them. Do not use fibre-shedding cloths.
- Carefully cover components or seal them if repair work will not be carried out immediately. Place rubber caps on connections. Seal intake openings with film or adhesive tape.
- Only install clean parts. Do not take spare parts out of the packaging until just before installation. Never use compressed air when the system is open. Do not move the vehicle.

WARNING: Lea king fuel supply lines

Emerging fuel
Risk of fire
- Perform leak test.

Information

Please note the following for the V6 =>

The repair concepts for the V6 are the same as for the V8.
The special features and component deviations are listed and shown in
> 1001IN TIGHTENING TORQUES, TIGHTENING SEQUENCES AND ASSEMBLY OVERVIEWS
More significant deviations are shown in separate descriptions.
If no special features are specifically highlighted, the assembly and adjustment instructions for the V8 apply.

Information

Do not bend high-pressure lines. Always remove the high-pressure distributor pipe and other fuel-supply components in the high-pressure area completely. Check that the connection points are not damaged and are perfectly clean and make sure there is no thread damage. Fit union nuts on all connection points by hand before screwing in screws or bolts. Remove dirt on the conical/ball joints. Check connection points for leaks following fitting.

Information

The ignition must be switched off when working on the fuel system.
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.

Fig 1: Fuel Distributor Pipe Components Location (V8)

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Fuel distributor pipe, V8

1	Fuel distributor pipe (fuel gallery, rail)
2	Plug for purge connection
3	High-pressure sensor

Fig 2: Fuel Distributor Pipe Components Location (V6)

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Fuel distributor pipe, V6

1	Fuel distributor pipe (fuel gallery)
2	Plug; 3 turns (tighten, loosen, tighten)
3	High-pressure sensor

Pull off cable plug for the high-pressure sensor -2- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

High pressure fuel distribution
Place a cloth around the high-pressure connection on the high-pressure line -3- .
Relieve the fuel pressure by slowly opening the high-pressure line with an open-ended wrench.
Loosen all eight union nuts for the high-pressure fuel injectors -1- .
Use an open socket > Nr.18-1 - socket-wrench insert or similar tool to do this > Socket.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Socket

Remove screws on fuel distributor pipe (fuel rail) -1 and 2- and lift off fuel rail.

The screw on the thermostat housing is longer.

The rear right screw can only be reached using a thin Torx wrench.

Fig 3: Fuel Distributor Pipe Mounting Components Location

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Mounting for fuel distributor pipe

1	Screw, M6 x 16
2	Screw, M6 x 25
3	Connection for high-pressure line
4	Connection to injector (high-pressure fuel injector)

Remove fuel rail from the engine by twisting it -arrow- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Fuel rail in engine