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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> Fuel Supply >> 20 Fuel Supply >> Fuel Tank >> Fuel Tank, Removing And Installing >> Fuel Tank, Removing, TFSI Vehicles

Fuel Tank, Removing, TFSI Vehicles

Special tools and workshop equipment required 

Removing

-- Follow all safety precautions. Refer to SAFETY PRECAUTIONS .

-- Follow the guidelines for clean working conditions. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .

CAUTION:

Risk of destroying electronic components when disconnecting the battery.

  • Follow the steps for disconnecting the battery.

-- Disconnect the ground cable from the battery terminal. Refer to BATTERY, DISCONNECTING AND CONNECTING .

WARNING:

Risk of accident due to the weight of the fuel tank.

  • The fuel tank must be empty when removing it.

-- Drain the fuel tank. Refer to FUEL TANK, DRAINING .

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

-- Remove the bolts -arrows- and remove the sealing flange cover -1-.

Fig 1: Sealing Flange Cover
GWWA20-11703Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connectors -1 and 3- on the sealing flange by unlocking the connector safety catch.

Fig 2: Fuel Pump Connectors
GWWA20-11719Courtesy of AUDI OF AMERICA, LLC

-- Market-specific version/equipment version: Release the connector safety catch and disconnect the connector -2-.

-- Remove the right rear wheel housing liner. Refer to REAR WHEEL HOUSING LINER, REMOVING AND INSTALLING .

-- Remove the fuel filler door unit. Refer to FUEL FILLER DOOR UNIT, REMOVING AND INSTALLING .

A4:

Fig 3: Locating Fuel Filler Neck Bolts -- A4
GWWA20-11727Courtesy of AUDI OF AMERICA, LLC

-- Remove the fuel filler neck bolts -arrows-.

A5:

Fig 4: Fuel Filler Neck Bolts -- A5
GWWA20-11741Courtesy of AUDI OF AMERICA, LLC

-- Remove the fuel filler neck bolts -arrows-.

Continue All Vehicles

Fig 5: Breather Line From EVAP Canister
GWWA20-11532Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the breather line -1- from the EVAP canister. Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .

-- Disengage and free up the bleeder line at the bracket -arrow-.

-- Disconnect the bleeder line -1- from the EVAP canister. Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .

Fig 6: Bleeder Line
GWWA20-11541Courtesy of AUDI OF AMERICA, LLC

-- Disengage and free up the bleeder line at the bracket -arrow-.

-- Remove the rear underbody trim panels. Refer to OVERVIEW - UNDERBODY TRIM PANELS .

-- Remove the rear section of the exhaust system. Refer to MUFFLER, REMOVING AND INSTALLING .

-- Rest of World market-specific version/equipment version: loosen the lock washer -2- and remove the fuel hose -3- from the metering pump -1-.

GWWA20-11709Courtesy of AUDI OF AMERICA, LLC
NOTE:

Place a cloth under the separating point to catch any escaping fuel.

WARNING:

The fuel system is under pressure.

Risk of injury from fuel spraying out.

  • Wear protective eyewear.
  • Wear safety gloves.
  • Reduce the pressure: Place clean cloths around the connection point and carefully open the connection point.

-- Disconnect the fuel line -arrow-. Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .

GWWA20-11728Courtesy of AUDI OF AMERICA, LLC

Rest of World FWD Vehicles

GWWA20-11710Courtesy of AUDI OF AMERICA, LLC

-- Place the :T40173  on the :VAS6931  and support as shown on the fuel tank.

GWWA20-11711Courtesy of AUDI OF AMERICA, LLC
WARNING:

Risk of accident due to the weight of the fuel tank.

  • The fuel tank must be empty when removing it.

-- Remove the bolts -1 to 5-.

NOTE:

For clarity, the fuel tank is shown without the engine and gearbox jack.

-- Lower the fuel tank with the :VAS6931  .

GWWA20-11710Courtesy of AUDI OF AMERICA, LLC
NOTE:

When guiding out the fuel tank check the clearance to the fuel filler neck.

AWD Vehicles

-- Equipped on some models: remove the diagonal brace. Refer to DIAGONAL BRACES, REMOVING AND INSTALLING .

-- Remove the driveshaft. Refer to the appropriate service information. .

FWD/AWD Vehicles North American Market-Specific Version and Rest of World AWD Vehicles:

GWWA20-11712Courtesy of AUDI OF AMERICA, LLC

-- Place the :T40173  on the :VAS6931  and support as shown on the fuel tank.

WARNING:

Risk of accident due to the weight of the fuel tank.

  • The fuel tank must be empty when removing it.

-- Remove the bolts -1 through 7-.

GWWA20-11713Courtesy of AUDI OF AMERICA, LLC
NOTE:

For clarity, the fuel tank is shown without the engine and gearbox jack.

-- Lower the fuel tank with the :VAS6931  .

GWWA20-11712Courtesy of AUDI OF AMERICA, LLC
NOTE:

When guiding out the fuel tank check the clearance to the fuel filler neck.