Mercedes M-Class W163

since 1997 release

Repair and operation of the car



Mercedes W163
+ Mercedes-Benz cars of a class M (W163)
+ Governing bodies and methods of safe operation
+ Current leaving and service
+ Engine
+ Cooling systems, heating and air conditioner
- Power supply system and production of the fulfilled gases
   + Power supply system of petrol engines
   - Power supply system of diesel engines
      General information
      Checks of system of injection of fuel
      Service of components of an inlet air path
      Service of components of the drive of a butterfly valve
      Depletion of the fuel tank
      Removal and installation of the sensor of a reserve of fuel
      Removal of air from a contour of low pressure of a fuel path, - on the example of the series 612 engine
      Removal and installation of the preliminary fuel pump
      Removal and installation of the fuel pump of high pressure (FPHP)
      Removal and installation of the fuel distributive highway and nozzles
      Removal and installation of the sensor of pressure in the fuel highway
      Removal and installation of the electric locking valve, - model 163.113
      Removal and installation of the valve regulator of pressure of fuel
      Removal and installation of valvate assembly on models 163.128
      Removal and installation of a cooler of fuel on models 163.113
      Removal and installation of the module of management of fuel injection
      Removal and installation of the fuel tank
   + Systems of release and decrease in toxicity of the fulfilled gases
+ Systems of electric equipment of the engine
+ Manual box of gear shifting
+ Automatic transmission
+ Transmission line
+ Brake and auxiliary systems
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment


Removal and installation of the valve regulator of pressure of fuel

1 — the Fuel highway (163.113)/valvate assembly (163.128)
2 — Bolts (TORX)

Y74 — the fuel pressure Valve regulator


 PERFORMANCE ORDER

  1. Details of installation of the valve regulator of pressure of fuel on diesel models are shown on an illustration to which all references which are found in the text belong.
  2. On models 163.113 (the series 612 engine) remove the fuel highway (see the Section Removal and installation of the fuel distributive highway and nozzles), on models 163.128 (the series 628 engine) remove the valvate block (see the Section Removal and installation of valvate assembly on models 163.128).

It is the most reasonable to replace the valve regulator assembled with the fuel highway / the valvate block.

  1. In case of need the valve regulator of pressure (Y74) can be removed from the highway clamped in a vice with soft sponges / valvate assembly by a reversing of fixing bolts (2).
  2. Installation is made upside-down. Do not forget to replace sealing elements.
  3. In conclusion start the engine and check power supply system components for existence of signs of development of leaks.