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Home >> Audi >> 2016 >> S8 Base >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Fuel System >> Fuel Supply [CDRA,CGWA,CGXC,CMDA,CEJA,CEUA,CGTA,CHJA,CGWD,CTUB,CPAA,CEUE,CTGA,CTGD,CTFA,CREA,CTNA,CREC,CREG,CTDA,CTGF,CVBA,DDTA,CYPA] >> 20 Fuel Supply >> Fuel Delivery Unit/Fuel Level Sensor >> Fuel Delivery Unit/Fuel Level Sensor, Removing And Installing >> Installing
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Fuel Delivery Unit/Fuel Level Sensor, Removing And Installing: Installing

Fig 1: Installing Fuel Delivery Unit
GWWA20-10807Courtesy of AUDI OF AMERICA, LLC

-- Guide the fuel line -2- out of the fuel tank and mount it on the fuel delivery unit until it clicks into place.

-- Carefully guide the fuel delivery unit -1- with screen and wires into the fuel tank.

-- Reach in the fuel tank and carefully turn the fuel delivery unit -1- with screen into the installation position in direction of -arrows-.

-- Reach in the fuel tank and mount the fuel line -2- on the fuel delivery unit until it clicks into place.

Fig 2: Connecting Fuel Line, Seating Fuel Delivery Unit And Connecting Connector
GWWA20-10630Courtesy of AUDI OF AMERICA, LLC

-- Push the fuel delivery unit -3- in direction of -arrow- into the baffle housing retainers.

-- Connect the connector -1- and make sure it is securely locked.

The rest of the installation is performed in reverse order of removal. Note the following:

Fig 3: Identifying Sealing Flange, Fuel Lines, Connectors And Seals
GWWA20-10731Courtesy of AUDI OF AMERICA, LLC
NOTE:

Replace the seal.

Make sure the fuel hoses are secure.

-- Connect the connectors -3 and 5- and make sure they are securely locked.

-- Insert the fuel line -2- until it audibly latches to the sealing flange.

-- Install a new dry sealing flange seal -4-.

-- Insert the sealing flange -1- into the fuel tank.

Fig 4: Identifying Tab And Latches
GWWA20-10804Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Risk of leaking.

  • When inserting sealing flange, sealing ring must not be damaged or crushed.

-- Set the sealing flange into the installation position.

-- Attach the fuel lines so that they audibly latch.

-- Connect the connectors and make sure they are secure.

-- Install the sealing flange cover. Refer to Figure.

-- Install the rear bench seat or single seat. Refer to SEAT BENCH/SINGLE SEAT, REMOVING AND INSTALLING .

-- Follow all steps after connecting the battery. Refer to Battery, Disconnecting and Connecting .

-- After installing fuel delivery unit, fill vehicle with at least 5.5 liters (5.8 qts) of fuel.