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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
General information and safety measures
The power supply system of petrol engines
The power supply system of diesel engines
Exhaust systems and reduce emissions
Systems of an electric motor
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Transmission Line
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The power supply system and exhaust



Specifications

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

PETROL INJECTION

General information, data adjustment

Grades used fuel See. Specifications
The fuel tank See. Specifications
Type of injection Electronic microprocessor injection system ME-SFI
The principle of measurement of air flow Hot-film air mass measurement sensor (MAF)
Type fuel pump Pierburg D-722156.00
Idling speed, min -1
  • M112
600 ÷ 850
  • M113
550 ÷ 800
The content of CO at idle, when the oil temperature is 60 ? C (all models) Not more than 0.5%, adjustment can not be
The content of CO in the 2200-2800 rev / min (all models) Not more than 0.3%
The content of the National Assembly at idle, ppm (particles) (all models) 100
The content of CO 2 in the idle (all models) 14.5-16%
The content of O 2 at idling speed (all models) 0.1-0.5%
The lambda value in the 2200-2800 rev / min (all models) 0.97-1.03

Diesel injection

General information, data adjustment

Grades used fuel See. Specifications
The fuel tank See. Specifications
Type of injection CDI
The principle of measurement of air flow Hot-film air mass measurement sensor (MAF)
The opacity of the exhaust gases
  • EU limit
Not more than 73%
  • Homology value
56%
Adjusting the timing (2-mm opening valves in the gas distribution chain is not new)
  • M612

The intake valves

    • Opening
19 ? ATDC
    • Closing
7 ? ATDC

The exhaust valves

    • Opening
9 ? before TDC
    • Closing
22 ? before TDC
  • M628

The right cylinder head

    The intake valves

      • Opening
18 ? ATDC
      • Closing
6 ? ATDC

The exhaust valves

      • Opening
11 ? before TDC
      • Closing
23 ? before TDC

The left cylinder head

The intake valves

      • Opening
18 ? ATDC
      • Closing
6 ? ATDC

The exhaust valves

      • Opening
11 ? before TDC
      • Closing
28 ? before TDC
Idling speed, min -1
  • M612
640 ÷ 840
  • M628
510 ÷ 710
The maximum permissible RPM (no load), min -1
  • M612
4200 ÷ 4600
  • M628
4500 ÷ 4900

Efforts of a tightening of carving connections, Nanometer

Power system

Petrol models

Bolts intake manifold to the cylinder head 20
Bolts activator electronic throttle actuator to the inlet pipeline 9
Securing the supply to the injector fuel pipe line 38

Diesel models

M612

Tighten the screws on the trim panel of the cylinder head cover 10
Tighten the screws on the trim panel diffusers 10
Bolts diffuser (M7) 16
Bolts support bracket to the air 20
Bolts motor drive off to the air inlet port 9
Bolts of flange connection of the exhaust manifold with turbocharger thirty
Bolt oil line to the turbocharger output 9
Screw nozzle mounting the oil supply to the turbocharger thirty
Bolt oil supply line to the cylinder head 9
Bolt the support bracket to the turbocharger thirty
Bolt kronshteynaturbokompressora reference to the crankcase 20
Nuts of fastening of the exhaust manifold to the cylinder head thirty
Bolts preliminary fuel pump to the upper cylinder head cover 9
Nuts of fastening of the pressure line to the fuel pump / injector line 23
Bolts pump support bracket 9
Pump bolts to the cylinder head 14
Bolts injector line to the cylinder head 14
Hollow screw couplings maslodrenazhnoy line to the injector line 20
Nuts of fastening pressure lines to the injectors / injector line 23
Bolts of fastening clamps on the injectors
  • Step 1
7
  • Step 2
To hold a 90 ? angle
Mounting pressure sensor in the fuel-distribution manifold 20
Bolts pressure control valve to the injector line
  • Step 1
3
  • Step 2
5

M628

Bolts diffuser (M7) 16
Bolt EGR pipe to EGR cooler 15
Bolts of flange connection with a turbocharger vypusknogokollektora thirty
Bolt oil line to the turbocharger output 9
Screw nozzle mounting the oil supply to the turbocharger thirty
Bolt oil supply line to the cylinder head 10
Bolt the support bracket to the turbocharger thirty
Nuts of fastening of the exhaust manifold to the cylinder head thirty
Bolts of fastening of the fuel pump prior to the injection pump 9
Nuts of fastening of the pressure line to the pump / valve assembly 23
Pump bolts to the cylinder head 14
Bolts injector line to the cylinder head 20
Nuts of fastening of the pressure line to the valve assembly / injector line 23
Bolts of fastening clamps on the injectors
  • Step 1
7
  • Step 2
To hold a 90 ? angle
Mounting pressure sensor to the valve assembly 35
Hollow screw couplings maslodrenazhnoy line to the injector line 20
Fixing the valve assembly to the air 12
Clip bolt to the air pressure line 8

Exhaust systems and reduce emissions

Petrol models

Bolts flanges of sections (including lateral) of the exhaust system 25
Tighten the screws on the bypass section to the transmission 38
Exhaust manifold nuts 16
Lambda sensors 55
Bolts air pump to timing cover 12
Bolt the EGR valve to the cylinder head 20
Anchor Nut EGR pipe to EGR valve 40
Bolt EGR pipe to the inlet pipeline 9

Diesel models

M612

Bolt support bracket trifunctional catalytic converter to the crankcase 20
Exhaust manifold nuts thirty

M628

Mounting the turbocharger to the front of the catalytic converter 15
Exhaust manifold nuts thirty
Bolts diffuser (M7) 16
Bolt puller EGR to the top of the diffuser 15
Bolts EGR cooler to the positioner 15
Bolt activator EGR to the fitting on the cylinder head 15




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