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Home >> Audi >> 2009 >> Q7 4.2 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (3.0L - Fuel Supply System - Engine Code(S): CATA & CNRB) >> 20 Fuel Supply >> Fuel Pump >> Left Suction Jet Pump, Removing And Installing >> Suction Jet Pump, Removing And Installing, Vehicles With 3.0L (V6)/4.2L (V8) Engines From 06/2010 >> Removing

Suction Jet Pump, Removing And Installing, Vehicles With 3.0L (V6)/4.2L (V8) Engines From 06/2010: Removing

WARNING: This page is about a different variant/trim than selected.

Follow all safety precautions, refer to WORKING ON FUEL SYSTEM .

Follow the guidelines for clean working conditions, refer to CLEAN WORKING CONDITIONS .

-- Remove the right rear single seat in the second row of seats, refer to Seat Frames .

Fig 1: Cut The Floor Covering Along The Perforation
GWWA20-10184Courtesy of AUDI OF AMERICA, LLC
WARNING:

Risk of injury.

  • Wear safety gloves

-- Cut the floor covering along the perforation -arrows- on the right side with a carpet knife -1-.

-- Fold carpet cut-out to side in direction of -arrow-.

Fig 2: Identifying Locking Flange Cover - Tightening Specifications
GWWA20-10099Courtesy of AUDI OF AMERICA, LLC

-- Remove nuts -1 to 4- and remove right locking flange cover.

-- Disconnect the connector -4- on the right locking flange.

Fig 3: Locking Flange Connectors Location
GWWA20-10919Courtesy of AUDI OF AMERICA, LLC

-- If equipped, disconnect the connector -3- on the locking flange.

NOTE:

Place a clean cloth under the separating location to catch any fuel that may leak out.

WARNING:

Very hot fuel can burn your skin.

  • In extreme cases, the fuel lines and the fuel itself in vehicles with a common rail engine can be as hot as 100 °C (212 °F) after the engine has been turned off. Let the fuel cool down before opening any line connections otherwise there is a danger of scalding.
  • Wear safety gloves
  • Wear protective eyewear.

There is a risk of injury because the fuel is under pressure.

  • To reduce pressure in fuel system, lay a clean cloth around the connector and carefully loosen connector.

-- Disconnect fuel lines -1 and 2-. Disconnect the connector couplings, refer to CONNECTOR COUPLINGS, SEPARATING .

-- Vehicles with parking heater: Disconnect the fuel line to the parking heater. Disconnect the connector couplings, refer to CONNECTOR COUPLINGS, SEPARATING .

-- Remove locking ring using the Wrench - Fuel Sending UnitT10202.

Fig 4: Identifying Removal Of Locking Ring With T10202
GWWA20-10145Courtesy of AUDI OF AMERICA, LLC

-- Pull the locking flange -4- out of the fuel tank slightly and remove the seal -1-.

Fig 5: Locking Flange Connectors Location
GWWA20-11239Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connectors -2 and 3- on the bottom of the locking flange.

-- Remove the fuel line -5- from the fuel tank and disconnect it. Disconnect the connector couplings, refer to CONNECTOR COUPLINGS, SEPARATING .

-- Reach into the opening in the fuel tank and disconnect the auxiliary heater supply line -2- from the fuel delivery unit by pressing the releases.

Fig 6: Fuel Delivery Unit Fuel Lines Location
GWWA20-11444Courtesy of AUDI OF AMERICA, LLC

-- Reach into the fuel tank opening and disconnect the return line -1- from the fuel delivery unit. Disconnect the connector couplings, refer to CONNECTOR COUPLINGS, SEPARATING .

-- Remove the locking flange.

-- Reach into the fuel tank opening and press the releases -arrows- and disconnect the supply line -1- from the fuel delivery unit.

Fig 7: Fuel Delivery Unit Supply Line Location
GWWA20-11445Courtesy of AUDI OF AMERICA, LLC

-- Reach into the fuel tank opening and disconnect the suction jet line -2- to the suction jet pump. Disconnect the connector couplings, refer to CONNECTOR COUPLINGS, SEPARATING .

-- Remove the left single seat and the left 2/3 seat bench seat cushion in the second row of seats, refer to Seat Frames .

Fig 8: Cut The Floor Covering Along The Perforation
GWWA20-10184Courtesy of AUDI OF AMERICA, LLC
WARNING:

Risk of injury.

  • Wear safety gloves

-- Cut the floor covering along the perforation -arrows- on the left side with a carpet knife -1-.

-- Fold carpet cut-out to side -arrow-.

Fig 9: Identifying Locking Flange Cover - Tightening Specifications
GWWA20-10099Courtesy of AUDI OF AMERICA, LLC

-- Remove the nuts -1 to 4- and remove left locking flange cover.

-- Disconnect the connector -arrow- on the left locking flange.

Fig 10: Connecting Connector -Arrow- At Left Locking Flange
GWWA20-10185Courtesy of AUDI OF AMERICA, LLC

-- Remove locking ring using the Wrench - Fuel Sending UnitT10202.

Fig 11: Identifying Removal Of Locking Ring With T10202
GWWA20-10145Courtesy of AUDI OF AMERICA, LLC

-- Pull the left locking flange -3- slightly out of the fuel tank.

Fig 12: Connecting Electrical Connector -2- Underneath Left Locking Flange -3-
GWWA20-10559Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -2- underneath the left locking flange.

-- Remove the sealing ring -1- from the fuel tank.

-- Reach into the fuel tank opening, press the locking tab in direction of -arrow 1- and remove the Fuel Level Sensor 2 -G169- -3- from the guide -4- in direction of -arrow 2-.

Fig 13: Identifying Removal Of Fuel Level Sensor 2 Out Of Guide -4- -Arrow 2- By Pressing Release Tab -Arrow 1-
GWWA20-10495Courtesy of AUDI OF AMERICA, LLC

-- Remove suction jet pump from guide -3- -arrow 2- by pressing locking tabs at the same time -arrow 1-.

Fig 14: Identifying Removal Of Suction Jet Pump From Guide -3- -Arrow 2- By Pressing Locking Tabs At Same Time -Arrow 1-
GWWA20-10567Courtesy of AUDI OF AMERICA, LLC
NOTE:

The suction jet pump is illustrated without the fuel tank.

-- Carefully remove suction jet pump -4- through the fuel tank opening.