Fuel Pump Feed Rate

Release fuel line pressure. See FUEL PRESSURE RELEASE .
Remove fuse No. 17 (15-amp) from fuse holder. Connect remote control (VW 1348/3A) using adapter lead (VW 1348/3-2) and adapter cables from (VW 1594) between fuse No. 17, terminal No. 2, and battery positive (+) terminal. On vehicles with A/C, connect clip to remote starter aid connection in engine compartment. See Figure .

NOTE: Place a cloth under and around area where hose will be connected to fuel line to catch residual fuel.

Fig 1: Identifying Fuel Supply Line In Engine Compartment

Courtesy of AUDI OF AMERICA, INC.

Disconnect fuel supply line from fuel pump. See Fig 1 .
Attach hose to fuel supply line, place other end of hose into a measuring glass. See Fig 2 .
Operate remote control (VW 1348/3A) for 15 seconds (hold down button). Record amount of fuel deposited into measuring glass.
Compare measured quantity with specified values for minimum feed rate in graph. See Fig 3 .Fuel delivery is dependent on battery voltage.

Fig 2: Identifying Fuel Feed Rate Test Set-up

Courtesy of AUDI OF AMERICA, INC.

Fig 3: Fuel Pump Feed Rate Specification Graph

Courtesy of AUDI OF AMERICA, INC.