Bleed The Fuel Supply Line To The Metering Pump

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2017 Audi SQ5, 2017 Audi Q5, 2016 Audi SQ5, 2016 Audi Q5, and 2015 Audi SQ5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

After working on the fuel delivery unit, bleed the fuel supply line for the metering pump on vehicles with a parking heater.

Special tools and workshop equipment required

Suction Pump VAS5226
Hand Vacuum Pump VAS6213

Procedure

Fig 1: Identifying Bracket, Bolts And Nuts

Courtesy of AUDI OF AMERICA, LLC

Parking heater switched off.

-- Remove the right center underbody panel, refer to OVERVIEW - UNDERBODY PANELS .

-- Remove the bolts -1 and 3-, nuts -4- and bracket -2-.

-- Press the release and disconnect the fuel line -1- to the auxiliary heater metering pump.

Fig 2: Fuel Line -1- On Metering Pump On Vehicles With An Auxiliary Heater

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Ignore -2 and 3- and -arrow-.

-- Connect the Suction Pump VAS5226 to the compressed air.

Fig 3: Identifying Metering Pump -1- And Fuel Supply Line -2-

Courtesy of AUDI OF AMERICA, LLC

-- Connect the Suction Pump VAS5226 with the adapter from the Hand Vacuum Pump VAS6213 to the fuel supply line -2- and bleed it by extracting briefly.

-- Install the fuel supply line to the metering pump -1-.

-- Switch the parking heater on and let it run approximately 10 minutes at full throttle.

-- Install the bracket, refer to Figure.

-- Install the right center underbody panel, refer to OVERVIEW - UNDERBODY PANELS .