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
   Check of compression pressure in cylinders
   Check of the engine by means of the vacuum gage
   Replacement of a belt of the drive of auxiliary units and elements of the mechanism of its tension
   - Petrol models
      Removal and installation of the engine
      Removal and installation of covers of the GRM drive
      Replacement of a gas-distributing chain
      Removal and installation of components of the GRM drive
      Installation of basic position of camshafts
      Verification of the basic provision of a balancing shaft (only series 112 engines)
      Removal and installation of the GRM components
      Removal and installation of a head(s) of cylinders
      Removal and installation of the inlet pipeline
      Removal and installation of a final collector
      Removal and installation of a face cover, replacement of a back epiploon of a bent shaft
      Removal and installation of a damper of tortional fluctuations / pulley of a driving belt
      Removal and installation of a flywheel / driving disk
      Removal and installation of support of a suspension bracket of the power unit
      Service of the lubrication system
   + Diesel models
+ 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
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Replacement of a gas-distributing chain

M111

Replacement of a gas-distributing chain on the series 111 engine

Illustrative material on replacement of a chain of the GRM drive for the engine of a series 111 is presented on an illustration to which all references which are found in the text belong.

Removal

 PERFORMANCE ORDER

  1. Uncover a head of cylinders (20).
  2. Turn out spark plugs.
  3. Having turned a bent shaft in the normal direction, bring the piston of the first cylinder into situation 20 ° after VMT.
  4. By means of blocking cores (01) record inlet (75) and final (78) camshafts.
  5. Remove a natyazhitel of a chain (14).
  6. By means of special adaptation (02) fix a chain (4).
  7. By means of special adaptation dismember links of a chain and remove the last from the engine.

Installation

 PERFORMANCE ORDER

  1. Get a new chain on the regular place and by means of special adaptation make a joint of links.
  2. Having executed necessary preparations (see the Section Removal and installation of components of the GRM drive), establish a natyazhitel of a chain (14).
  3. Check correctness of basic position of camshafts (see the Section Installation of Basic Position of Camshafts).
  4. Establish a cover of a head of cylinders.
  5. Start the engine and check it for existence of signs of development of leaks.

M112/113

Replacement of a gas-distributing chain on engines of a series 112 and 113

1 — the Holder of a gas-distributing chain (right)
2 — the Holder of a gas-distributing chain (left)

3 — the Core of blocking of the camshaft (right)
4 — Screws with heads like TORX

Illustrative material on replacement of a chain of the GRM drive for engines of a series 112 and 113 is presented on an illustration to which all references which are found in the text belong.

Removal

 PERFORMANCE ORDER

  1. Disconnect a negative wire from the battery.
  2. Turn out spark plugs
  3. Uncover heads of cylinders.
  4. Remove the electric fan of system cooling/assembly of the fan with the viscous coupling (depending on a complete set) and a fan casing.
  5. Having turned a bent shaft in the normal direction, bring the piston of the first cylinder into situation 40 ° after VMT, - camshafts have to be deployed by grooves to the diametrical plane of the engine and be fixed freely by blocking cores.

On the models equipped with the air pump before installation of the right blocking pin it is necessary to otboltit the combined valve. Copperplated segments of a chain have to be combined with tags on asterisks of camshafts, - for the purpose of achievement of the required result it can be necessary to turn a bent shaft to 14 times.

  1. Remove a natyazhitel of a chain (see the Section Removal and installation of components of the GRM drive).
  2. Remove the sensor of position of the camshaft (CMP).
  3. Having turned a bent shaft in the normal direction, provide convenient access to the dismembered chain links.
  4. Remove the bridge of covers of bearings of the right camshaft.
  5. By means of a pin (3) block the right camshaft.
  6. Establish holders of a chain (1 and 2).
  7. By means of special adaptation dismember links of a chain and remove the last from the engine.

Installation

 PERFORMANCE ORDER

  1. Turning a bent shaft in the normal direction, get a new chain on the regular place.
  2. Remove from heads of cylinders holders of a chain (1 and 2).
  3. By means of special adaptation make a joint of links of a chain.
  4. Turn a bent shaft in the normal direction and achieve the required combination of adjusting tags.
  5. Take the plug (3) blocking the right camshaft.
  6. Establish the bridge of covers of bearings of the right camshaft.
  7. Install the CMP sensor.
  8. Establish a natyazhitel of a chain.
  9. Establish a fan casing.
  10. Establish ventilatory assembly.
  11. Establish covers of heads of cylinders.
  12. Screw spark plugs.
  13. Connect a negative wire to the battery.