Mercedes S-Class W-140

1991-1999 of release

Repair and operation of the car



Mercedes S-Class
+ Mercedes-Benz cars of the class S (W-140)
+ Operation manual
+ Routine maintenance
- Engine
   Check of a compression in engine cylinders
   Check of the engine by means of the vacuum gage
   Belt of the streaming drive of auxiliary units
   + 6-cylinder petrol engines (M104.944 and M104.990/994)
   + 8-cylinder petrol engines (M119.970/981 and M119.971/981)
   + 12-cylinder petrol engines (M120.980/982)
   - 6-cylinder diesel engines (OM603.971)
      The air cleaner - installation details
      Replacement of a belt of the drive of the generator
      Removal and installation of a natyazhitel of a belt of the drive of the generator
      Final collector - installation details
      GRM drive chain cover
      Camshaft
      Removal and installation of a head of the block of cylinders
      Verification of the control provision of the camshaft
      Replacement of a chain of the GRM drive
      The GRM drive - the general information, service of components
      Natyazhitel of a GRM drive chain - an installation detail
      Removal and installation of pistons
      Check of a state and replacement of rods
      Measurement of diameters of cylinders
      Removal and installation of sleeves of cylinders
      Check of a condition of a bent shaft
      Removal and installation of an asterisk of a bent shaft
      Removal and installation of the pallet of a case of the engine
      The oil level sensor switch - installation details
      Replacement of a chain of the drive of the oil pump
      Removal and installation of the oil pump
      Removal and installation of the case of an oil filter
   + 6-cylinder diesel engines (OM606.961)
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
+ Gear shifting box
+ Automatic transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment






The GRM drive - the general information, service of components

The gas-distributing chain can be replaced without dismantling of the engine. By means of the listed below tools the new chain can be connected to old, is passed around asterisks and fullered.

At the wrong assembly there can be a collision of valves with the bottoms of pistons!

General information

Details of installation of elements of the GRM drive

1 — Adjusting tags for reduction of the engine in the provision of VMT of the end of a step of compression of the first cylinder
2 — Check correctness of combination of adjusting tags of camshafts
3 — Assembly of a natyazhitel of a chain
4 — At the TNVD removal/installation the bent shaft should be given to situation 15 ° after VMT of the piston of the first cylinder

5 — the Bolt of an asterisk of TNVD has the left carving
6 — the Lock bolt
7 — the Bolt of M11 of an asterisk of the camshaft is subject to replacement in case its adjusting length of "X" exceeds extreme admissible value (53.6 mm)
8 — the Bolt of a pulley of a bent shaft

Performing procedures of removal and installation of elements of the GRM drive will require the following special tools:

  • Stripper of a nave/pulley of a bent shaft - No. 103589003300;
  • Stripper of an asterisk of a bent shaft - No. 102589053300;
  • The tool for blocking of a flywheel / a driving disk - No. 601589024000;
  • Bolts M6_90 of mm for blocking of a flywheel / a driving disk;
  • The tool for blocking of TNVD - No. 601589052100;
  • The tool for division of TNVD - No. 601589000800;
  • The tool for centering of an asterisk of TNVD - No. 601589051400;
  • A set of links of a gas-distributing chain - No. 602589024000;
  • Stripper of links of a gas-distributing chain (element 1) - No. 602589023300;
  • Stripper of links of a gas-distributing chain (element 2) - No. 602589046300;
  • Stripper of links of a gas-distributing chain (element 3) - No. 602589046301;
  • The tool for installation of links of a gas-distributing chain - No. 602589003900;
  • A set of 1 shtampoderzhatel for installation of links of a gas-distributing chain - No. 602589026300;
  • A set of 2 shtampoderzhatel for installation of links of a gas-distributing chain - No. 602589036300;
  • The device for fixing of a chain on a camshaft asterisk - No. 602589014000;
  • Toolbox - No. 602589009800;
  • The holder of the viscous coupling (series 129/140) - No. 120589140700;
  • Key of the viscous coupling - No. 111589020100;
  • The holder of a pulley - No. 603589004000.
  • Pay attention to the next moments:
  • If the return is not stipulated especially, turn the engine only in the normal direction;
  • Observe the efforts of tightening of fixture stipulated by standards;
  • At the corresponding complete set do not forget to mark adjusting position of the CKP sensor before removal;
  • Do not turn a bent shaft for asterisks of camshafts, and also other asterisks of the GRM drive;
  • Do not turn cranked and camshafts at the removed gas-distributing chain;
  • After installation of phases of gas distribution do not forget to check the TNVD adjusting parameters.
  • Service of components of the GRM drive

    Details of installation of elements of the GRM drive

    1 — Adjusting tags for reduction of the engine in the provision of VMT of the end of a step of compression of the first cylinder
    2 — Check correctness of combination of adjusting tags of camshafts
    3 — Assembly of a natyazhitel of a chain
    4 — At the TNVD removal/installation the bent shaft should be given to situation 15 ° after VMT of the piston of the first cylinder

    5 — the Bolt of an asterisk of TNVD has the left carving
    6 — the Lock bolt
    7 — the Bolt of M11 of an asterisk of the camshaft is subject to replacement in case its adjusting length of "X" exceeds extreme admissible value (53.6 mm)
    8 — the Bolt of a pulley of a bent shaft


     PERFORMANCE ORDER

    1. Disconnect a negative wire from the battery.
    2. For the purpose of simplification of a provorachivaniye of the engine turn out all glow plugs.
    3. Bring a bent shaft into the provision of VMT of the piston of the first cylinder (1).
    4. Check correctness of combination of adjusting tags of camshafts (2).
    5. Before starting implementation of repair procedures remove assembly of a natyazhitel (3).
    6. At the TNVD removal/installation the bent shaft should be given to situation 15 ° after VMT of the piston of the first cylinder (4).
    7. Before a reversing of a bolt (5) install the tool No. 601589051400 aligning an asterisk.

    The bolt of an asterisk of TNVD has the left cutting.

    8. After removal of TNVD establish a lock bolt (6), - the tool No. 601589052100.
    9. At installation of an asterisk of the camshaft track correctness of an arrangement of the directing pin.
    10. Before installation make filling of a natyazhitel for what lower it a plunger down in the container with motive SAE 10 and 7-10 oil of times wring out a plunger. Check smoothness of the course of a plunger and adequacy of its resistance to compression.
    11. Having finished necessary recovery repair, establish a natyazhitel (3) on the regular place.

    The bolt of M11 of an asterisk of the camshaft is subject to replacement in case its adjusting length of "X" exceeds extreme admissible value (53.6 mm) (7) (see an illustration 78.1).
    15 Tighten a bolt of a pulley of a bent shaft (8) with effort of 320 Nanometers (a bolt And classifications 10.9) or 200 Nanometers + 90 ° (a bolt In classification 8.8).

    79c5991e