Color Coding

Connector Coupling	Color Coding on the Connector Coupling
Fuel Supply	Black
Fuel Return Line	Blue
Ventilation	White Beige
Vacuum	Green

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.

Version 1

Fig 1: Coupling

Courtesy of AUDI OF AMERICA, LLC

Connector coupling with right and left release buttons -arrows-.

Opening

Fig 2: Identifying Coupling

Courtesy of AUDI OF AMERICA, LLC

-- Push the connector coupling -1- in the direction of -arrow A-.

-- Push the release buttons and hold them pressed.

-- Disconnect the connector coupling -1- from the fuel line -2- in the direction of -arrow B-.

Pay attention to the color coding during installation. Refer to Connector Coupling Allocation .
The connector couplings must >>audibly<< engage when locking.

-- Pull on the connector coupling to check for secure fit.

Version 2

Fig 3: Coupling With A Pull Release

Courtesy of AUDI OF AMERICA, LLC

Coupling with pull release -arrow-.

Opening

Fig 4: Coupling -1- Off The Fuel Line

Courtesy of AUDI OF AMERICA, LLC

-- Push the connector coupling -1- in the direction of -arrow A-.

-- Pull the pull release -2- in the direction of -arrow B-.

-- Pull the connector coupling -1- off the fuel line -3- in the direction of -arrow B-.

Pay attention to the color coding during installation. Refer to Connector Coupling Allocation .
The connector couplings must >>audibly<< engage when locking.

-- Pull on the connector coupling to check for secure fit.

Version 3

Fig 5: Coupling With A Release Button

Courtesy of AUDI OF AMERICA, LLC

Coupling with front button -arrow-

Opening

-- Press the release button -arrow- and remove the connector couplings.

Note the color coding when installing. Refer to Connector Coupling Allocation .
The connector couplings must >>audibly<< engage when locking.

-- Pull on the connector coupling to check for secure fit.

Version 4

Fig 6: Coupling With The Release Buttons On The Right And Left Sides

Courtesy of AUDI OF AMERICA, LLC

Connector coupling with right and left release button -arrows- :

Opening

-- Push the connector coupling in the direction of -arrow A-.

-- Press the release buttons -arrows- and remove the connector coupling.

Note the color coding when installing. Refer to Connector Coupling Allocation .
The connector couplings must >>audibly<< engage when locking.

-- Pull on the connector coupling to check for secure fit.

Version 5

Connector coupling with right and left release buttons -arrows-.

Fig 7: Coupling With The Release Buttons On The Right And Left Sides
Courtesy of AUDI OF AMERICA, LLC

Opening

-- Press the release buttons -arrows- and remove the connector coupling.

Note the color coding when installing. Refer to Connector Coupling Allocation .
The connector couplings must >>audibly<< engage when locking.

-- Pull on the connector coupling to check for secure fit.

Version 6

Fig 8: Identifying Coupling

Courtesy of AUDI OF AMERICA, LLC

Connector coupling with right and left release buttons -arrows-.

Opening

-- Press the connector coupling -1- in the direction of -arrow- and hold it down.

-- Press the release buttons -arrows- and remove the connector coupling.

Note the color coding when installing. Refer to Connector Coupling Allocation .
The connector couplings must >>audibly<< engage when locking.

-- Pull on the connector coupling to check for secure fit.

Version 7

Fig 9: Connector Coupling With Right And Left Unlock Buttons

Courtesy of AUDI OF AMERICA, LLC

Connector coupling -1- with right and left unlock buttons -2-.

Opening

Push the connector coupling -1- in the direction of -arrow A- and hold it down.
Push the release buttons -2- in the direction of -arrow B- and remove the connector coupling -1-.
Note the color coding when installing. Refer to Connector Coupling Allocation .
The connector couplings must >>audibly<< engage when locking.

-- Pull on the connector coupling to check for secure fit.

Version 8

Courtesy of AUDI OF AMERICA, LLC

Straight connector coupling with right and left connector coupling -1- and cable tie -2-.

Opening

-- Cut through the cable tie for the clip and connector coupling -3-.

-- Release the clip -1- from the connector coupling in the direction of -arrow-.

Courtesy of AUDI OF AMERICA, LLC

-- Press the release buttons in direction of -A arrows- and hold pressed.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the connector coupling in the direction of -arrow B-.

Note the color coding when installing. Refer to Connector Coupling Allocation .
The connector couplings must >>audibly<< engage when locking.

-- Pull on the connector coupling to check for secure fit.

-- Push the clip -1- on the connector coupling -2- in direction of -arrow-.

Courtesy of AUDI OF AMERICA, LLC

-- The clip -1- is seated on the connector coupling as shown.

Courtesy of AUDI OF AMERICA, LLC

The release buttons -arrow- of the connector coupling -2- must be accessible through the connector coupling window.

-- Place the fuel line -1- on the connector coupling -2- in direction of -arrow A-.

Courtesy of AUDI OF AMERICA, LLC

-- Pull on the connector coupling to check for secure fit in direction of -B arrows-.

-- Push down the clip -1- in direction of -arrow- the connector coupling is secured by this.

Courtesy of AUDI OF AMERICA, LLC

-- Secure the clip -1- with cable tie -2- on the connector coupling -3-.

Courtesy of AUDI OF AMERICA, LLC