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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mercedes-Benz G-Class (W463, 1999 issue)

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Mercedes-Benz G-class
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Mercedes-Benz
G-class
Introduction
Controls and operation receptions
Current care and maintenance
Engine
System of cooling, heating, ventilation and air conditioning
The power supply system and exhaust
Systems of an electric motor
Automatic Transmission
Transmission Line
Brakes and auxiliary systems
Specifications
Check the brake system for leaks
Check of serviceability of functioning of the vacuum brake booster
Removal and installation of the brake fluid reservoir and the master cylinder (GTZ)
Removing and installing brake servo stroke sensor diaphragm BAS
Removal and installation of the vacuum pump (diesel engines)
Removing and installing control modules ABS / EBV / ESP
Removing and installing hydromodulator ABS / 4-ETS
Removal and installation of wheel gauges ABS
Removal and installation of the rotor wheel ABS sensors
Removing and installing brake pedal
Removal and installation of the cocking lever parking brake with bearing bracket
Replacement brake hoses
Check and replacement of brake pads
Replacing the parking brake shoes
Removing and installing brake caliper
Repair of fixed-type caliper
Check, removal and installation of brake disks
Removal and installation of components of the cable handbrake
Adjusting the parking brake
Bleeding brake system
Suspension and steering
Body
Onboard electric
Wiring
 


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Specifications



Separate characteristics are resulted also in the text of the Head and in case of compulsion of their performance are highlighted in bold.

Total information

type of drive Hydraulic, dual circuit (with diagonal split) with vacuum booster. E protivozanosnaya system (ESP), Brake Assist (BAS) and anti-lock brakes (ABS)
Brakes
  • Front wheels
Disk, ventilated, with a fixed caliper
  • Rear wheels
Disk with floating caliper
Parking brake With Recoil drive shoe assembly of rear brakes

Brakes

The minimum admissible thickness of frictional overlays brake pads, mm 20
The minimum admissible thickness of frictional overlays of boots handbrake mm 3.5
Brake disc diameter front wheel, mm
  • Models of 463,246 / 249/323/333
315
  • Models 463.250 (G320)
303
Brake Disc Thickness, mm

Front brake

New CD

      • Models of 463,246 / 249/323/333
thirty
      • Models 463.250 (G320)
16

Worn limit

      • Models of 463,246 / 249/323/333
27.4
      • Models 463.250 (G320)
13

Wear limit the passage of TO

      • Models of 463,246 / 249/323/333
27.6
      • Models 463.250 (G320)
13.6

Rear brake

    • New CD
16
    • Worn limit
14
Limiting admissible size of palpation of a brake disk, mm

Front brake

    • Models of 463,246 / 249/323/333
0.15
    • Models 463.250 (G320)
0.1

Rear brake

0.1

The main brake cylinder

The diameter of the GTZ, mm
  • Circuit pusher
26.99
  • The contour of the floating piston
25.40
Stroke, mm
  • Circuit pusher
19
  • The contour of the floating piston
13.5

Vacuum brake booster
The diameter of the vacuum booster, mm 203 / 228.6
Gain 5.6
The pressure in the brake lines (with a depth of depression in the inlet pipeline 0.6 ÷ 0.8 atm), bar
When the effort of squeezing the brake pedal:
  • 50 N
10 ÷ 21
  • 100 N
32 ÷ 45
  • 150 N
54 ÷ 63
  • 200 N
76 ÷ 90
  • 250 N
98 ÷ 120

ABS

The gap between the speed sensors and rotors (measuring rings) mm 0.7 ÷ 0.05

Efforts of a tightening of carving connections, Nm
Wheel bolts
  • Steel wheels
180
  • Alloy wheels
130
Gates pumping brake caliper 15
Mounting the brake pipe to the GTZ 15
Nuts of fastening of the GTZ to the housing of the brake booster 25
Nuts of fastening of the support bracket of the brake pedal to the brake booster 16
The vacuum pump bolts to the cylinder head (diesel models) 14
Fixing brake lines to hydromodulator ABS / ESP 15
Self-locking bolts of wheel sensors to rotary fists 22
Nuts of fastening of a basic arm the handbrake lever to the transmission line tunnel 8
Fixing brake lines to hydraulic lines 15
Mount brake line to the caliper 15
The guide fingers floating type slides thirty
Self-locking bolts Brake pad wear sensors to the caliper thirty
Caliper mounting bolts fixed to the swivel-type front axle casings
  • M14x1.5-10.9
220
  • M16x1
280
The locking bolt of the brake disc to the wheel hub 25
Bolt the parking brake cable to the plate holder 20





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