Work Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 Audi S5, 2011 Audi S5, 2010 Audi S5, 2010 Audi A5, and 2009 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

Proceed As Follows:

-- Remove Rear Bench Seat. Refer to SEAT BENCH/SINGLE SEAT, REMOVING AND INSTALLING .

-- Remove locking flange cover -arrows-.

Fig 1: Identifying Cover Bolts For Locking Flange

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect electrical connector -1- on locking flange.

Fig 2: Disconnect Connectors

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Ignore -2-.

-- Connect multimeter to measure resistance between terminals -3- and -4-.

Fig 3: Connect Multimeter To Measure Resistance Between Contacts

Courtesy of AUDI OF AMERICA, LLC

Fuel Level Sensor -G- installed:

Sensor at lower stop: approximately 270 Ω.
Sensor at upper stop: approximately 70 Ω.

NOTE:

If Measured Value Is 0 Ω There Is A Short Circuit. If Measured Value Is ∞ Ω There Is And Open Circuit In The Wiring.

To check resistance values "tank full" or "tank empty", the fuel delivery unit must be removed FUEL DELIVERY UNIT and the sensor floater must be placed in upper or lower end position.

With Fuel Level Sensor Removed, The Following Values Are Obtained Because Of The Greater Deflection Of The Floater Arm:

Fuel Level Sensor -G- removed:

Sensor At Lower Stop: Approximately 288 Ω.
Sensor At Upper Stop: Approximately 57 Ω.

-- Connect Multimeter To Measure Resistance Between Contacts -3- and -4-.

Fig 4: Connect Multimeter To Measure Resistance Between Contacts

Courtesy of AUDI OF AMERICA, LLC

Fuel Level Sensor -G- Installed Or Removed:

Arbitrary Sensor Position: Approximately 340 Ω.

Assembly Is In Reverse Order Of Removal, Note The Following:

-- Install Right Locking Flange Cover.

-- Install Rear Bench Seat. Refer To SEAT BENCH/SINGLE SEAT, REMOVING AND INSTALLING .