Fuel Line To Metering Pump, Bleeding
WARNING: This page is about a different car, the 2022 Audi S5, 2021 Audi S5, 2020 Audi S5, and 2020 Audi A5 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
- Suction Pump: VAS5226
- Hand Vacuum Pump: VAS6213
NOTE:
After working on the fuel delivery unit, the fuel supply line to the metering pump must be bled on equipment levels with a parking heater.
Procedure
- Parking heater switched off.
-- Connect the : VAS5226 to the compressed air.
-- On the metering pump -1- remove the fuel supply line -2- from the fuel tank.
-- Connect the : VAS5226 to the fuel supply line using the adapter from the : VAS6213 and bleed it by extracting briefly.
-- Re-install the fuel supply line to the metering pump.
-- Switch on the parking heater and let it run approximately 10 minutes at full load.