Mercedes S-Class W-140

1991-1999 of release

Repair and car operation



Mercedes S-Class
+ Mercedes-Benz Cars of a class S (W-140)
+ Operation manual
+ Routine maintenance
- Engine
   Compression check in engine cylinders
   Engine check by means of the vacuum gage
   Belt of a 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)
      Air purifier - 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 a retsirkulyatsiya of the fulfilled gases - installation details
      Pump of supply of air
      Removal and installation of the top forward covers
      Heads of the block of cylinders
      Removal and installation of a cover of a chain of a drive of GRM
      Replacement of a chain of a drive of GRM
      GRM drive - the general information, service of components
      Natyazhitel of a chain of a drive of GRM
      Camshaft regulator
      Removal and installation of camshafts
      Check of phases of a gazoraspredeleniye
      Check and adjustment of provision of camshafts
      Replacement of directing plugs of valves
      Measurement of diameters of cylinders
      Removal and installation of pistons
      Check of rods
      Removal and installation of a cranked shaft
      Removal and installation of the pallet of a case of the engine
      The sensor switch of level of oil - installation details
      The oil pump - a design and installation details
   + 6-cylinder diesel engines (OM603.971)
   + 6-cylinder diesel engines (OM606.961)
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ gear shifting Box
+ Avtomaticheckaya transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



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The oil pump - a design and installation details

Details of installation of the oil pump

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


Pump and filter scheme


1 — Maslopriyemnik and the filter of rough cleaning of the oil pump
2а — Tandemny the oil pump, the first step
2b — Tandemny the oil pump, the second step
3 — Reduktsionny the valve
4а — Reduktsionny the valve
4b — the Reducer of pressure of oil

5 — the Antidrainage valve
6 — the Thermostat
7 — Perepuskna the valve of the oil filter
8 — the Oil filter
9 — the Drain valve of the oil filter
10 — the Air maslookhladitel
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 a drive of the first step with a napressovanny gear wheel
2а — the Gear wheel of the first step
3 — a pump Shaft
3а — the Gear wheel of the first step
4 — the Case of the second step of the oil pump
5 — Tarelchaty the valve
6 — the Gear wheel of the second step
7 — the Gear wheel of the second step
8 — the Cover directing
9 — the Case of the reduktsionny valve
10 — the Piston of the reduktsionny valve
11 — the Cap
12 — the Cover with a maslopriyemnik
13 — the Spring
14 — Plunzher
15 — Perepusknoye an opening in the piston of the reduktsionny valve
15а — the Oil channel connecting to the working chamber
16 — the Working chamber
17 — the Opening under a pin
18 — the Driving asterisk
D — Soaked-up oil
Е — the absorption Chamber
F — the Channel incorporating to the trunk main
P — the Pressure head chamber, primary stream of oil
S — the Pressure head chamber, an oil stream on an exit from the pump
G — the Opening of the reduktsionny valve