Fuel Tank, Removing And Installing, AWD Vehicles: Removing

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2017 Audi S3, 2017 Audi RS 3, 2017 Audi A3 Quattro, 2016 Audi S3, and 2016 Audi A3 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

-- Pay attention to all safety precautions. Refer to SAFETY PRECAUTIONS .

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

-- Move the front seats all the way forward.

CAUTION:

There is a 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 .

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

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 .

-- Unclip the right sealing flange cover -1- at the tabs -arrows- using the :3409 .

Fig 1: Fuel Pump Cover (Under Rear/Bench Seats)

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Version 1:

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-- Release the connector safety catch and disconnect the connector -2- from the sealing flange.

NOTE:

Ignore -1-.

-- Vehicles with parking heater: disconnect the connector for the parking heater metering pump by releasing the connector safety catch.

Version 2:

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-- Disconnect the connectors -1 and 2- on the sealing flange by releasing the connector safety catch.

-- Vehicles with parking heater: disconnect the connector for the parking heater metering pump by releasing the connector safety catch.

-- Lift the tab -2- -arrow A- so that it is possible to reach between the floor panel and the fuel tank.

Fig 2: Fuel Pump Control Module -J538- -1-

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-- At the same time, carefully remove the Fuel Pump Control Module -J538- -1- from the mount -arrow B-.

Version 3:

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-- Release the connector safety catch, and disconnect the connector -1- on the sealing flange.

NOTE:

Ignore -2-.

-- Vehicles with parking heater: disconnect the connector for the parking heater metering pump by releasing the connector safety catch.

Continuation For All Vehicles:

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-- Unclip the left sealing flange cover -1- at the tabs -arrows- using the :3409 .

-- Unlock and disconnect the connector -1- on the All Wheel Drive clutch.

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-- Depending on the version, disconnect the connector -2- on the sealing flange by unlocking the connector safety catch.

-- Open the fuel filler door.

Fig 3: Identifying Cap -2-

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-- Clean the area around the fuel filler neck.

-- Remove the fuel filler cap -2-.

-- Disengage the rubber boot -3- from the fuel filler neck -1-.

NOTE:

Seal the fuel filler neck opening with a clean plug to prevent dirt from entering.

-- Remove The Right Rear Wheel Housing Liner. Refer to REAR WHEEL HOUSING LINER, REMOVING AND INSTALLING .

-- Disconnect the bleeder line -1 and 2- on the EVAP canister. Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .

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-- Unclip the breather line from bracket -arrows-.

-- Unclip the breather lines -1 and 2- from the bracket -arrow- on the subframe.

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-- Remove the fuel filler neck bolts -1 and 2-.

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A3 CABRIOLET:

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-- Remove the fuel filler neck bolts -1 and 2-.

-- Remove the diagonal braces. Refer to OVERVIEW - SUBFRAME .

Market-Specific For North America:

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

-- Disconnect the connector -2- to release the connector safety catch.

-- Remove the bolts -3- from the fuel filler neck.

Continuation For All Vehicles:

-- Remove the rear section of the exhaust system. Refer to REAR MUFFLER, REMOVING AND INSTALLING [TDI] / MUFFLER, REMOVING AND INSTALLING [CNSB, CNTC, CYFB] .

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

-- Unlock and disconnect the connector -1- on the All Wheel Drive clutch.

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-- Disconnect the bleeder line -3- and the fuel line -2-. Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .

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WARNING:

Risk of injury due to the fuel being under high pressure.

To reduce the pressure in the fuel system, lay clean cloths around the connection point and carefully loosen the connection point.

-- For vehicles with a parking heater: disconnect the fuel line -1- to the parking heater. Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .

-- Place the :VAS6931 under the fuel tank to support it as shown.

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-- A second technician is needed to hold the rear edge of the fuel tank.

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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-.

NOTE:

For clarity, the fuel tank is shown without the :VAS6931 .

-- Lower the fuel tank using the :VAS6931 .

-- Turn the fuel tank in the corresponding direction to lower it downward at its side and remove it.

-- A second mechanic is required to guide out the fuel filler neck by hand at the longitudinal member.