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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
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Current care and maintenance
Engine
Check compression pressure assessment cylinders
Checking the engine by means of the vacuum gauge
Replace accessory drive belt and its tension elements of the mechanism
Checking the motor oil pressure
Calculating the oil flow
Check and adjust the basic position of camshafts
Checking the reference position of the balancing shaft (only engines M112 and 628)
Checking the timing chain on the engine M628
Verifying the installation of ignition timing on the petrol models
Removal and installation of the power unit
Removal and installation of supports of the suspension of the power unit
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
Suspension and steering
Body
Onboard electric
Wiring
 


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Removal and installation of supports of the suspension of the power unit



Petrol models

Side supports

Air bearings

M112

Preparing to remove pillows side supports the suspension of the power unit (M112)

Details of the installation of the side airbag supports the suspension of the power unit (M112)

PERFORMANCE ORDER

  1. Disconnect the ground wire from the battery (see chap. Systems of an electric motor).
  2. Remove the air cleaner (1) (see chap. Power supply system and exhaust).
  3. Remove the cooling fan assembly with the viscous coupling (2) (see chap. System of cooling, heating, ventilation and air conditioning).
  4. Disconnect from the steering pump hydraulic return line (4), - immediately plug the open ends of the line and choke connector plugs prepared in advance.
  5. Otboltite thermofilters from the frame (4 and 5), - the screen (5) release the wiring left lambda probe.

Do not attempt to split the screen (5) into two halves.

  1. Remove the bolts (8).
  2. Otboltite support brackets (6) ATF lines (7) from the upper and lower sections of the oil pan.
  3. Post powerplant for both eyes, - make sure that no components (particularly the screens (4 and 5)) and the communication line is not turned pinched.
  4. When removing the cushions, remove the right support thermofilter (4) - if necessary, pull the power unit to the side.
  5. Give fixing nuts and remove assemblage of pillows (9) side supports the suspension of the power unit.

If the nuts are fixed against rotation, pillows can be turned out of the support arm.

  1. Installation is in the reverse order.
  2. Finally, make a reading of the DTC and the purification of memory on-board self-diagnostic system using a manual tester (HHT) / Scanner STAR DIAGNOSIS (6511 1801 00) (see chap. Systems of an electric motor).

M113

Preparing to remove pillows side supports the suspension of the power unit (M113)

Details of the installation of the side airbag supports the suspension of the power unit (M113)

PERFORMANCE ORDER

  1. Disconnect the ground wire from the battery (see chap. Systems of an electric motor).
  2. Remove the air cleaner (1) (see chap. Power supply system and exhaust).
  3. Remove the cooling fan assembly with the viscous coupling (2) (see chap. System of cooling, heating, ventilation and air conditioning).
  4. Disconnect the cable (3) from the throttle sensor (R25 / 2) The provisions of the latter (TPS), then release the cable out of the support bracket (4).
  5. Release Bowden cable (5) of the throttle wire grommet (6).
  6. Remove the left of the ignition coil (7) (see chap. Systems of an electric motor).
  7. Remove the mounting bracket (8).
  8. Remove the top section (9) of the left thermofilter.
  9. Otboltite from the frame right thermofilter (10) and a lower section (11) of the left of the screen - do not remove the screen from the frame.
  10. Remove the nozzle mounted in the intake air path thermoanemometric gauge MAF (B2 / 5) (see chap. Power supply system and exhaust).
  11. Disconnect the vacuum line (13) of the actuator assembly of the brake booster in the rear portion of the inlet conduit.
  12. Remove the screws (17).
  13. Otboltite support bracket (14) line of ATF (15) of the lower and upper sections of the oil pan.
  14. Disconnect from the steering pump hydraulic return line (16), - immediately plug the open ends of the line and choke connector plugs prepared in advance.
  15. Post powerplant for both eyes, - make sure that no components (particularly the screens (10 and 11)) and the communication line is not turned pinched.
  16. Otboltite and remove thermofilter (18), and then - if dismantle the pillow right support - remove the right shield (10) - if necessary, pull the power unit to the side.
  17. Remove the left-receiving section (19) of the exhaust system (see chap. Power supply system and exhaust).

Nuts are subject to replacement without fail.

  1. Lower unit - again make sure that no components have appeared pinched.
  2. Otboltite connection section (20) of the exhaust system.
  3. Otboltite and remove thermofilter (21) - if necessary, pull to the side of the ventilation hose AT.
  4. Disconnect the wiring connector of lambda probe (G3 / 3x1)
  5. Remove the connecting section (20) of the exhaust system.

Nuts are subject to replacement without fail.

  1. Post powerplant for the front eye - make sure that no components have appeared pinched.
  2. Remove the cushion (22) from their respective support bracket - fixing nuts should be fixed - and remove it from the engine.
  3. Installation is in the reverse order.
  4. Finally, make a reading of the DTC and the purification of memory on-board self-diagnostic system using a manual tester (HHT) / Scanner STAR DIAGNOSIS (6511 1801 00) (see chap. Systems of an electric motor).

Support bracket

Left support

Details of the installation bracket left lateral support power train (113 and M112, M112 as an example)


PERFORMANCE ORDER

  1. Remove the cushion side supports (see. Above).
  2. Remove the accessory drive belt (see. Section Replacing the accessory drive belt and the tension mechanism of its elements).
  3. Otboltite compressor (1) K / V and, without disconnecting the line refrigerator, take him aside and secure in the engine compartment.
  4. Otboltite bracket (2) left lateral support suspension of the power unit from the engine undertray, - the mounting bolts (3) must be replaced without fail.
  5. Remove the bracket (2).
  6. Installation is in the reverse order.

Right support

Details of installation of the right side of bearing bracket suspension of the power unit (113 and M112, M112 as an example)

PERFORMANCE ORDER

  1. Remove the cushion side supports (see. Above).
  2. Remove the cover (1) of the generator.
  3. Remove the mounting bolts (3) and remove the bracket (2) to support the right side crankcase, - the bolts (3) must be replaced without fail.
  4. Installation is in the reverse order - make sure that between the bracket and the wall of the crankcase do not get caught, no lines of communication.

Rear support

Details of installation of a back support of the suspension of the power unit (all models)

PERFORMANCE ORDER

  1. Poddomkratte car and establish it on props.
  2. Prop up transmission (1) with a suitable jack.
  3. Remove the bolts (2).
  4. Give bolts self-locking nuts (3) and remove cross-member (4), - the nuts must be replaced without fail.
  5. Remove the bolts (5) and remove the assembly of a back support (6) The suspension of the power unit with the beam (6).
  6. Installation is in the reverse order.

Diesel models

Side supports

All self-locking fasteners be replaced without fail.

Left support

M612

Details of installing the assembly left lateral support suspension of the power unit (M612)

PERFORMANCE ORDER

  1. Disconnect the ground wire from the battery (see chap. Systems of an electric motor).
  2. On models corresponding complete set (code ET2) activate the service mode of the emergency call TELE AID (see. Section Activate / deactivate the service mode of the emergency call AID TELE).
  1. Turn on the auxiliary battery and connect it to a standard battery, then disconnect the negative cable last.

    7 - Auxiliary battery
    8 - terminal positive wire module
    9 - negative terminal wire module
    W10 - Ground Battery
  1. Poddomkratte car and establish it on props.
  2. Remove the trim panel of the cylinder head cover (see. Illustration details the installation of panels finishing the cylinder head cover of the engine M612).
  3. Remove the diffuser (see chap. Power supply system and exhaust).
  4. Remove the mounting bracket (1) diffuser / bracket left side supports the suspension of the power unit.
  5. Remove the air cleaner (see chap. Power supply system and exhaust).
  6. Remove primary catalytic converter (see chap. Power supply system and exhaust).
  7. Give a nut (2) securing the cushion support (3) to the bracket (4).
  8. Connect the lifting gear to the two lugs of the power unit - Make sure not to be pinched any communication lines.
  9. Remove the screws (5 and 6) and separate the pillow (3) either side of the frame supports.
  10. Release of his arm back support cushion (see. Below).
  11. Post assembly of the power unit on the winch, - make sure that no components have appeared pinched.
  12. Remove the bolts (7a-d) the bracket (4) of the left lateral support.
  13. Remove the cushion (3) and the bracket (4).
  14. Installation is in the reverse order.

Tightening the screws (7a-d) should be carried out in alphabetical order: abcd).

  1. On models corresponding complete set (code ET2) deactivate service mode of TELE AID (see. Section Activate / deactivate the service mode of the emergency call AID TELE).
  2. Finally, make the DTC reading and clearing of system memory on-board self-diagnostic scanner using STAR DIAGNOSIS (6511 1801 00) (see chap. Systems of an electric motor).

M628

Details of installing the assembly left lateral support suspension of the power unit (M628)

PERFORMANCE ORDER

  1. Follow the procedures of paragraphs 1, 4 and 8 (in the order listed) for the
  2. Remove the nozzle mounted in the left air intake tract thermoanemometric gauge MAF (B2 / 6) (see chap. Power supply system and exhaust).
  3. Disconnect the inlet ducts in the mud flaps of both wings.
  4. Remove protection crankcase.
  5. Remove the fan cover of the cooling system (see chap. System of cooling, heating, ventilation and air conditioning).
  6. On models corresponding to the vehicle (code H12) Remove the auxiliary heater (see chap. System of cooling, heating, ventilation and air conditioning).
  7. Remove the lower left sleeve (1) an air path and the left air inlet duct (2) (see chap. Power supply system and exhaust).
  8. Give a nut (3) securing the cushion (5) of the left side support the suspension of the power unit to its bracket (4).
  9. Connect the lifting gear to the two lugs of the power unit - Make sure not to be pinched any communication lines.
  10. Disconnect the exhaust system from the turbocharger (see chap. Power supply system and exhaust).
  11. Remove the screws (6 and 7) and separate the cushion (5) side supports the suspension of the power unit from the frame.
  12. Release of his arm back support cushion (see. Below).
  13. Post assembly of the power unit on the winch, - make sure that no components have appeared pinched.
  14. Remove the bolts (8a-d) the bracket (4) of the left lateral support.

The bolt head (8a) has a hexagonal shape, other bolts (8b-d) type equipped with a TORX head.

  1. Remove the cushion (5) and the bracket (4).
  2. Installation is in the reverse order.

Tightening the screws (8a-d) should be carried out in alphabetical order: abcd).

Right support

M612

Details of installation of the right lateral support assembly power train (M612)

PERFORMANCE ORDER

  1. Follow the procedures of paragraphs 1 to 6 for the
  2. Remove primary catalytic converter (see chap. Power supply system and exhaust).
  3. Give a nut (2) securing the cushion support (3) to the bracket (4).
  4. Connect the lifting gear to the two lugs of the power unit - Make sure not to be pinched any communication lines.
  5. Remove protection crankcase.
  6. Connect the lifting gear to the two lugs of the power unit - Make sure not to be pinched any communication lines.
  7. Remove the mounting bolts (3 and 4) and separate the pillow supports both side of the frame.
  8. Follow the procedures of paragraphs 13 and 14 for the
  9. Remove the screws (5a-d) the bracket (6), right lateral support.
  10. Remove the cushion (2) and bracket (6).
  11. Installation is in the reverse order.

Tightening the screws (5a-d) should be carried out in alphabetical order: abcd).

  1. On models corresponding complete set (code ET2) deactivate service mode of TELE AID (see. Section Activate / deactivate the service mode of the emergency call AID TELE).
  2. Finally, make the DTC reading and clearing of system memory on-board self-diagnostic scanner using STAR DIAGNOSIS (6511 1801 00) (see chap. Systems of an electric motor).

M628

Details of installation of the right lateral support assembly power train (M628)

PERFORMANCE ORDER

  1. Follow the procedures of paragraphs 1, 4 and 6 (in the order listed) for the
  2. Remove the right pipe mounted in the air intake tract thermoanemometric gauge MAF (B2 / 7 (see chap. Power supply system and exhaust).
  3. Follow the procedures of paragraphs 4, 5 and 6 (in the order listed) for the
  4. Remove the lower right sleeve (1) an air path and the right air intake duct (2) (see chap. Power supply system and exhaust).
  5. Give a nut (3) securing the cushion (5) of the right side support the suspension of the power unit to its bracket (4).
  6. Proceed in accordance with the instructions given in paragraphs 9 to 16 for the

Rear support

PERFORMANCE ORDER

  1. Procedures for removing and installing the rear suspension support of the power unit is completely analogous to those described above for the petrol models (see. Paragraphs 1 to 6 for gasoline engines).




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