Installing
- Tightening specifications. Refer to OVERVIEW - HIGH PRESSURE PUMP .
Install in reverse order of removal. Note The Following:
If the Fuel Pressure Regulator Valve -N276- or the high pressure pump must be replaced, the adaptation values of the regulator valve must be reset via the Vehicle Diagnostic Tester: guided functions, resetting the adaptation values of the fuel pressure regulator valve.
Letting the high pressure pump run dry will damage it.
- The high pressure pump must be filled with fuel before starting the engine for the first time.
Replace the gaskets and seals.
The fuel return line must not be bent, damaged or plugged
-- Install the high pressure pump toothed belt. Refer to HIGH PRESSURE PUMP TOOTHED BELT, REMOVING AND INSTALLING .
-- Install the high pressure lines. Refer to HIGH PRESSURE LINES, INSTALLING .
-- Install the intake manifold upper section. Refer to INTAKE MANIFOLD UPPER SECTION, REMOVING AND INSTALLING .
-- Bleed the fuel system after installing the high pressure pump. Refer to FUEL SYSTEM, BLEEDING AND FIRST TIME FILLING .