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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> MULTIPORT Fuel Injection 2.0L (DMSA) >> 24 MULTIPORT Fuel Injection >> High Pressure Pump >> High Pressure Pump, Removing And Installing >> Installing

High Pressure Pump, Removing And Installing: Installing

-- Check the roller tappet for damage. Replace if necessary.

-- Install the roller tappet in the vacuum pump, at the same time pay attention to the anti-twist mechanism -arrows A and B-.

Fig 1: Identifying Roller Tappet And Vacuum Pump
GWWN24-10903Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Risk of damaging the engine by the timing mechanism skipping.

- Only let the engine turn in the direction of engine rotation.

-- Rotate the crankshaft in the direction of engine rotation at the starter generator belt pulley nut until the roller tappet in the vacuum pump has reached its lowest point.

-- Insert the high pressure pump with the O-ring into the vacuum pump and tighten the bolts in stages.

-- Install the high pressure pipe. Refer to HIGH PRESSURE PIPE, REMOVING AND INSTALLING .

-- Check the fuel system for leaks.