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






The oil pump - a design and details of installation

Details of installation of the oil pump

1 — the Oil pump
6 — the Bolt
7 — the Asterisk of the oil pump 8, 9 of Bolte with laying
10 — the Compensator
S43 — the oil level Sensor


Scheme of the pump and filter


1 — the Oil receiver and the filter of rough cleaning of the oil pump
2a — the Tandem oil pump, the first step
2b — the Tandem oil pump, the second step
3 — the Reducing valve
4a — the Reducing valve
4b — an oil pressure Reducer

5 — the Antidrainage valve
6 — the Thermostat
7 — Perepuskna the valve of an oil filter
8 — the Oil filter
9 — the Drain valve of an oil filter
10 — the Air oil cooler
11 — the Sensor of emergency pressure of oil


Design of the two-level oil pump

1 — the Case of the first step of the oil pump
2 — the Roller of the drive of the first step with a napressovanny gear wheel
2a — the Gear wheel of the first step
3 — a pump Shaft
3a — the Gear wheel of the first step
4 — the Case of the second step of the oil pump
5 — the Dish-shaped valve
6 — the Gear wheel of the second step
7 — the Gear wheel of the second step
8 — the Cover a guide
9 — the Case of the reducing valve
10 — the Piston of the reducing valve
11 — the Cap
12 — the Cover with an oil receiver
13 — Pruzhina
14 — the Plunger
15 — the Perepuskny opening in the piston of the reducing valve
15a — the Oil channel connecting to the working camera
16 — the Working camera
17 — the Opening under a pin
18 — the Driving asterisk
D — the Soaked-up oil
Е — the absorption Camera
F — the Channel connecting to the trunk main
P — the Pressure chamber, primary stream of oil
S — the Pressure chamber, an oil stream at the exit from the pump
G — the Opening of the reducing valve











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