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)
      The air cleaner - installation details
      Covers of heads of the block of cylinders
      Removal and installation of the inlet pipeline
      Removal and installation of a final collector
      The valve of recirculation of the fulfilled gases - installation details
      Air supply pump
      Removal and installation of the top forward covers
      Heads of the block of cylinders
      Removal and installation of a cover of a chain of the GRM drive
      Replacement of a chain of the GRM drive
      The GRM drive - the general information, service of components
      Natyazhitel of a GRM drive chain
      Camshaft regulator
      Removal and installation of camshafts
      Check of phases of gas distribution
      Check and adjustment of position of camshafts
      Replacement of the directing plugs of valves
      Measurement of diameters of cylinders
      Removal and installation of pistons
      Check of rods
      Removal and installation of a bent shaft
      Removal and installation of the pallet of a case of the engine
      The oil level sensor switch - installation details
      The oil pump - a design and details of installation
   + 6-cylinder diesel engines (OM603.971)
   + 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






Removal and installation of a cover of a chain of the GRM drive

Removal

Details of installation of a cover of a chain of the GRM drive


 PERFORMANCE ORDER

1. Remove forward covers.
2. Remove the pump of the cooling system (2).
3. Remove the air filter with the measuring instrument of an air stream.
4. Remove the air pump (9).
5. Remove the generator (13).
6. Install the piston of the first cylinder in situation 30 ° after VMT.
7. Mark a GRM drive chain arrangement concerning asterisks of camshafts.
8. Remove a pulley of a bent shaft with a damper of tortional fluctuations.

Bolts of fastening of a pulley of the steering pump (are shown by shooters)

10 — the Pulley of the steering pump
12 — Pump assembly
14 — the Clamp
21 — the Driving belt


Bolts of fastening of the steering pump (arrow) and contact sockets of an electrical wiring of BMT (L/1) sensors and (L1/2)

7 — a GRM drive chain Cover
12 — Pump assembly


 PERFORMANCE ORDER

1. Turn off a pulley (10) of the steering pump (12) and remove it, establish a belt of the drive of the generator (21) over a pulley (10), establish a clamp (14) and weaken fixing bolts.
2. Turn out bolts of fastening of the steering pump (12) and fix the pump with the attached tubes sideways. On engines with the VMT sensor unscrew (L1/1) and (L1/2) sensors from a GRM drive chain cover.

Location of the filter of the air pump (4); bolts (15) and (16) fastenings of a basic arm (3) of the air pump/generator

4 — the Pump
15, 16 — Bolts
3 — Fastenings of a basic arm


 PERFORMANCE ORDER

1. Unscrew the filter of the air pump (4) and remove it.
2. Turn off bolts (15) and (16) and remove an arm (3) of the air pump/generator.
3. Turn off a natyazhitel of a chain of the GRM drive.
4. Turn off bolts (17), (18) and (19) and uncover a GRM drive chain.

Installation

8 — Sealing rings
20 — the Directing plug


 PERFORMANCE ORDER

1. Wipe and grease with sealant the sealing surfaces (shooter) of the oil highway of a cover of a chain of the GRM (7) drive.
2. Wipe sealing surfaces of a cover of a chain of the GRM (7) drive and block of cylinders. Grease the sealing surfaces of the oil highway of a cover of a chain of the GRM (7) drive with sealant 002 989 73 20 10.
3. Replace sealing rings (8).
4. Establish a cover of a chain of the GRM (7) drive.
5. Tighten bolts of fastening (17) and (18) the first.
6. Check combination of color tags (arrow) for chains of the GRM drive and on asterisks of camshafts.
7. Establish a natyazhitel of a chain of the GRM drive.
8. Further installation is carried out as it should be, the return to removal.