Fuel Tank With Attachments (Removing And Installing (Vehicles With Fwd And AWD): Removing

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2016 Audi S4, 2016 Audi A4 Quattro, 2016 Audi A4, 2015 Audi S4, and 2015 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

-- 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.

Observe the steps for disconnecting the battery.

-- Disconnect the battery. 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.

-- Fuel tank, draining. Refer to FUEL TANK, DRAINING, VEHICLES WITH FWD AND AWD .

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

-- Remove the locking flange cover -arrows-.

Fig 1: Identifying Cover Bolts For Locking Flange

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A5 from MY 2011, A4 from MY 2012

Fig 2: Disconnect Connectors

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-- Open the connector locking mechanism with the Elbow Assembly Tool T10118 and disconnect the connector -2- on the locking flange.

-- Disconnect the connector -1- on the sealing flange.

-- Push the circlip -1- upward in direction of -arrow A- and squeeze the release in direction of -arrow B-.

Fig 3: Pulling Lock -1- Upward -Arrow A- & Press -Arrow B-

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A5 from MY 2012, A4 from MY 2013

Fig 4: View Of Fuel Delivery Unit Harness Connectors

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-- Open the connector locking mechanism with the Elbow Assembly Tool T10118 and disconnect the connectors -1 and 3- on the locking flange.

NOTE:

Ignore item -2-.

Continuation for All Vehicles

Fig 5: Identifying Cap -2-

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-- Open the fuel filler door.

-- Clean the area around the fuel filler tube -1-.

-- Remove the cap -2- from the fuel filler tube.

NOTE:

Seal the opening with a clean piece of foam to prevent dirt from getting into the fuel tank.

Ignore item -3-.

-- Remove the right rear wheel.

Fig 6: Fuel Filler Tube Ground (GND) Connection

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-- Remove the right rear wheel housing liner. Refer to OVERVIEW - REAR WHEEL HOUSING LINER .

-- Remove fuel filler tube bolts -1 and 2-.

-- Remove the rear section from the exhaust system. Refer to OVERVIEW - MUFFLER for 2.0L, engine codes CAED, CAEB, CPMB, CPMA, refer to OVERVIEW - MUFFLER for 3.0L, enginge codes CCBA, CGXC, CTUB, or refer to OVERVIEW - MUFFLER for 3.2L, engine code CALA .

WARNING:

Risk of vehicle tipping on hoist with rear axle removed.

Secure the vehicle on a hoist before loosening the subframe bolts (for example, load the luggage compartment with about 50 kg).

-- Remove the rear axle. Refer to REAR AXLE, REMOVING AND INSTALLING .

Fig 7: Identifying Right Front Fuel Line -1-

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WARNING:

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

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

-- Disconnect the fuel line -1- on the front of the fuel tank on the right side. Refer to CONNECTOR COUPLINGS, SEPARATING .

-- Disconnect the ventilation line -1- at the left on the Evaporative Emission (EVAP) canister. Refer to CONNECTOR COUPLINGS, SEPARATING .

Fig 8: Disconnect Vent Line

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-- Place the Engine and Gearbox Jack under the fuel tank for support.

Fig 9: Identifying Support Fuel Tank Using VAG 1383 A

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-- Support the fuel tank with the Engine and Gearbox Jack.

Fig 10: Position fuel tank with mounting strap and carrier plate on the vehicle underbody using the VAG 1383 A

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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- and remove the exhaust system bracket -6-.

-- Lower the fuel tank with the Engine and Gearbox Jack while guiding it by hand.