Fuel Pump Control Module -J538-, REMOVING AND INSTALLING: Removing

WARNING: This page is about a different car, the 2016 Audi A7 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 CLEAN WORKING CONDITIONS .

CAUTION:

Risk of damaging electronic components when disconnecting the battery.

Complete the steps for disconnecting the battery.

-- Disconnect the Ground (GND) 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 it is lowered.

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

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

Vehicles without A Selective Catalytic Reduction (SCR) System

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

Vehicles with A SCR System

-- Depending on the vehicle equipment, remove the bolts -2- for the reducing agent tank filler neck.

-- Remove the bolts -1 and 3- for the fuel filler tube.

Continuation for All Vehicles

Fig 1: Fuel Tank Loosening Sequence

Courtesy of AUDI OF AMERICA, LLC

WARNING:

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

The fuel tank must be empty when it is lowered.

-- Remove the bolts -1 through 6-.

NOTE:

The fuel tank lowers onto the subframe.

The fuel tank is shown without the subframe to provide a more clear illustration above.

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

-- Fold the insulation mat near the locking flange cover to the side.

-- Remove the bolts -arrows- and the locking flange cover.

-- Remove the bolts -1 and 2-.

-- Remove the Fuel Pump Control Module -J538- toward the inside between the fuel tank and the underbody -arrow-.

-- Disconnect the connector -arrow- and remove the Fuel Pump Control Module -J538-.