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



Brake and auxiliary systems

Specifications

Separate characteristics are provided also in the text of the Head and in case of obligation of their performance are highlighted in bold type.


General parameters

Drive type Hydraulic, double-circuit (with diagonal division) with the vacuum amplifier. Electronic antistrange system (ESP), amplifier of emergency brake application (BAS) and system of anti-blocking of brakes (ABS)
Brake mechanisms Disk, ventilated, with the fixed or floating support
Parking brake With a pedal trosovym the drive on brake mechanisms of back wheels
Brake mechanisms of forward wheels
Thickness of frictional overlays of blocks, mm

Models with a floating support

Nominal rate (a new block taking into account a substrate)
  • Internal block
18.5
  • External block
15.5
Extreme admissible value (taking into account a substrate - for THAT)
  • Internal block
12
  • External block
11
Operation of the indicator of wear near 2

Models with the fixed support

Nominal rate (a new block taking into account a substrate) 17.5
Extreme admissible value (taking into account a substrate - for THAT) 11
Operation of the indicator of wear near 1.7
Thickness of a brake disk, mm

Models with a floating support

Nominal rate 25
Extreme admissible value 23
Extreme admissible value when passing THAT 23.5

Models with the fixed support

Nominal rate 32
Extreme admissible value 29.4
Extreme admissible value when passing THAT 30
Brake mechanisms of back wheels
Thickness of frictional overlays of blocks, mm

Models with a floating support

Nominal rate (a new block taking into account a substrate) 15.5
Extreme admissible value
  • Taking into account a substrate (for THAT)
11
  • Without a substrate
5

Models with the fixed support

Nominal rate (a new block taking into account a substrate) 15.5
Extreme admissible value
  • Taking into account a substrate (for THAT)
11
  • Without a substrate
2
Operation of the indicator of wear near 1.7
Thickness of a brake disk, mm
Models with a floating support
Nominal rate 15
Extreme admissible value 13
Extreme admissible value when passing THAT 13.5
Models with the fixed support
Nominal rate 14
Extreme admissible value 12
Extreme admissible value when passing THAT 12.5
Parking brake
Control effort of squeezing of a pedal of a foot brake, N 170 +70/-50
The number of clicks of a ratchet when squeezing a pedal of raising of the parking brake
Pedal assembly with an exhaust ratchet 1
Pedal assembly with a release ratchet 5
Vacuum amplifier of brakes
Diameter of the vacuum amplifier, mm 279
Strengthening coefficient 5.6
Pressure in brake lines (with a depth of depression of 0.75 ÷ of 0.8 bars), bar
At effort of squeezing of a pedal of a foot brake:
  • 50 N
9 ÷ 20
  • 100 N
36 ÷ 48
  • 150 N
53 ÷ 68
  • 200 N
70 ÷ 85
  • 250 N
82 ÷ 96
Efforts of tightening of threaded connections, H · m
Wheel nuts 150
GTTs tank cover 2
Gates of pumping of supports of brake mechanisms 18
Nut of fastening of the left forward support of a suspension bracket of the power unit to an arm on the engine 65
Nuts of fastening of assembly of the brake amplifier on a partition of a motive compartment 25
Nipple knots of connection of brake lines to assembly of GTTs 20
Nuts of fastening of assembly of GTTs to the block of the brake amplifier 25
Nipple knots of connection of brake lines to the ASR/ETS hydromodulator 15
Nipple knots of fastening of flexible hoses to brake tubes 18
Nipple knots of connection of brake hoses to supports 18
Hollow bolts of nipple sockets of connection of brake hoses to supports 33
Bolts of fastening of contact sensors of brake shoes on the fixed supports 9
Самоконтрящиеся bolts of fastening of brake supports of brake mechanisms of forward wheels to rotary fists 180
Самоконтрящиеся bolts of fastening of brake supports of brake mechanisms of back wheels to stupichny assemblies 115
Bolts of fastening of a pedal of the drive of the parking brake to a forward rack 12
Самоконтрящиеся bolts of fastening of wheel sensors 8