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






Heads of the block of cylinders

Removal

Details of installation of the left head of the block of cylinders

11 — the Bolt
12 — the Arm
13 — a camshaft bearing Cover
16 — the Head of the block of cylinders
18 — Laying
19 — the Ventilating tube
22 — the Exhaust pipe


Details of installation of the left head of the block of cylinders

10 — a cooling system Branch pipe
18 — Laying


Details of installation of the right head of the block of cylinders

1, 5 — air supply Tubes
6 — the Directing pipe of the index of level of oil
7 — the Index of level of AT oil
8 — the Tube of ventilation of a case
9 — a cooling system Branch pipe


Details of installation of the right head of the block of cylinders

11 — the Bolt
12 — the Arm
13 — a camshaft bearing Cover
14 — the Head of the block of cylinders
17 — laying


Removal of heads of the block of cylinders with camshafts and final collectors is possible only after full cooling of the engine!

 PERFORMANCE ORDER

1. Install the piston of the first cylinder in situation 30 ° after VMT. In this situation camshafts can be turned without impact of valves and pistons.
2. Mark the mutual provision of asterisks of camshafts concerning a GRM drive chain.
3. On the left head of the block of cylinders: pick up the phone (5) ventilations of a case.
4. On the left head of the block of cylinders remove a finger (1) of the directing lever by means of a stripper and a carving insert.
5. Unscrew the filter of the pump of admixture of air in an exhaust and remove it.
6. Turn off air supply tubes from the pump of admixture of air in an exhaust. On the right head of the block of cylinders one bolt is on a head, one bolt on an arm of the engine and one bolt on the engine case pallet. On the left head of the block of cylinders: one bolt - on a head, one - on the block of cylinders below a final collector and one - on the left arm of the engine.
7. Turn off the directing pipe of the index of level of oil. On the right head of the block of cylinders turn off the directing pipe (7) of the probe of measurement of the ATF level from the block of cylinders and transmission.
8. On the right head of the block of cylinders turn off also a tube of ventilation of a case (8) from a head of the block of cylinders (shooter).
9. Turn off a final collector in a back part of the block of cylinders.
10. Merge cooling liquid from the block of cylinders. For this purpose turn off traffic jams (shooter) with consolidations. Moment of tightening of 30 Nanometers.
11. Working as it should be, the return shown on an illustration, weaken bolts of fastening of a head of the block of cylinders as it should be, the return to a tightening order, starting with the 14th.
12. Establish a lifting eye on a head of the block of cylinders. Turn off a cover of the 1st bearing of the final camshaft on the right head of the block of cylinders and establish an arm with the directing plugs (18a). Turn off a cover of the 2nd bearing of the final camshaft on the left head of the block of cylinders and establish an arm with the directing plugs (18a). Moment of tightening of 21 Nanometer.
13. Attach the elevator to an arm and a back lifting point of the engine, lift and remove a head of the block of cylinders.

Do not damage the tension and directing levers!

14. Check a contact surface of a head of the block of cylinders.

Installation

 PERFORMANCE ORDER

1. Establish laying. Pay attention to an arrangement of the directing fingers (1) and the directing plugs (2) for an arrangement of a head of the block of cylinders.
2. Check bolts of fastening of a head of the block of cylinders.
3. Grease a carving part of bolts and contact surfaces of heads of the block of cylinders with motive oil and insert them.
4. Tighten fastening bolts in strictly certain order.
5. Further installation is made as it should be, the return to removal. Check installation of camshafts. Check liquid level in AT and add it if it is necessary.
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