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
+ A power supply system and production of the fulfilled gases
+ Systems of electric equipment of the engine
+ Manual box of gear shifting
+ Automatic transmission
+ Transmission line
- Brake and auxiliary systems
   General information and security measures
   Check of the brake system on leaks
   Check of serviceability of functioning of the vacuum amplifier of brakes
   Check of retaining valve
   Removal and installation of the main brake cylinder
   Removal and installation of the vacuum amplifier of brakes and sensor of the course of a diaphragm of BAS
   Removal and installation of the ETS/ESP hydromodulator
   Removal and installation of the hydraulic lines laid between GTTs and the ETS/ESP hydromodulator
   Assessment of degree of wear and replacement of brake shoes
   Replacement of brake hoses
   Removal and installation of a support
   Removal and installation of a brake disk
   Replacement of boots of the parking brake
   Pumping of the brake system
   Removal and installation of pedal knot and sensor switch of stoplights
   Removal and installation of a pedal of raising of the parking brake
   Removal and installation of hummock assembly of the drive of the parking brake
   Adjustment of the drive of the parking brake
   Removal and installation of wheel ABS/ETS/ESP sensors
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



Check of serviceability of functioning of the vacuum amplifier of brakes

Check of serviceability of functioning of the vacuum amplifier of brakes

8 — the Vacuum line

070 — the Connecting socket


 PERFORMANCE ORDER

  1. Illustrative material on check of serviceability of functioning of the vacuum amplifier of brakes is presented on an illustration to which all references which are found in the text belong.
  2. Connect the vacuum gage (030) to the brake amplifier (16) and several pressing a pedal of a foot brake dump depression in a vacuum path.
  3. Connect a tester (051) to a support of the brake mechanism.
  4. Connect the measuring instrument (060) to a pedal of a foot brake.
  5. Start the engine and a sharp otpuskaniye of the squeezed-out accelerator pedal create the required depression (0.75 ÷ 0.80 bar) in a vacuum path.
  6. If depression falls at once, or its depth is insufficient, it is necessary to check a condition of the sealing ring established between the servo-driver of the vacuum amplifier and GTTs, also the probability of failure of the control valve in the vacuum line is not excluded. Check retaining valve (see the Section Check of Retaining Valve). Replace the failed components.
  7. Squeezing out a pedal with the required efforts, consider the indication of a tester. Compare results of measurements to requirements of Specifications.
  8. Disconnect the measuring instrument (060) from a pedal, disconnect a tester (051) and the vacuum gage (030).
  9. Pump over the brake system (see the Section Pumping of the Brake System).