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
- Cooling systems, heating
   Specifications
   - Engine cooling system
      Replacement of cooling liquid - general comments
      Removal and replacement of hoses of the cooling system
      Check of the thermostat
      Removal and installation of the thermostat
      Removal and installation of a radiator of the cooling system - an installation detail
      Removal and installation of the water pump
   + Systems of ventilation, heating and air conditioning
+ 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 the water pump

Removal

Petrol models with engines of the M119.97/98 series

Details of installation of the water pump on models with engines of the M119.97/98 series

1 — Proushina
2 — the Cover
3 — the cooling system Pump
2a, 3a — Laying
4, 5, 6 — Branch pipes


 PERFORMANCE ORDER

1. Disconnect branch pipes (4), (5) and (6).
2. Turn off a cover (2) with an eye (1). Replace laying (2a).
3. Turn off bolts of fastening of the pump (3).
4. Wipe sealing surfaces. Replace laying (3a).
5. Remove the pump (3).

Petrol models with engines of the M120.97/98 series

Design and details of installation of the water pump

Details of installation of the water pump on petrol models with engines of the M120.980/982 series

4, 15 — cooling system Branch pipes
21 — the fan Coupling
22, 24, 27 — Bolts
25 — a cooling system pump Pulley
26 — the cooling system Pump
28 — Laying
29 — a generator drive Belt



Design of the water pump installed on engines 120

1 — the Casing
2 — a fastening Bolt
3 — the Bolt with a washer
4 — Krylchatka
5 — the Viscous coupling
6 — the Sealing ring
7 — a coupling Pulley
8 — the Flange
9 — Bearing knot
10 — the Drainage tube
11 — a pump Shaft

12 — the Sealing ring of an epiploon
13 — Krylchatka of the pump
14 — the Epiploon
15 — the Holder of bearings
16 — the Case
17 — a pump drive Pulley
18 — a liquid reflector disk
And — From the thermostat
In — From a radiator
With — To an engine case
and — 7.85 mm


 PERFORMANCE ORDER

1. Weaken bolts of fastening of a pulley of the coupling of the fan (21) and a pulley of the pump of the cooling system (23).
2. Take off a generator drive belt.
3. Turn off a pulley of the coupling of the fan (21) and a pulley of the pump of the cooling system (23).
4. Shoot the directing video (25) from a forward right cover.
5. Disconnect a cooling system branch pipe from the cooling system pump from below.
6. Turn off bolts of fastening of the pump (26) and remove it.

   1 — M8x70 Bolts
   2 — M8x85 Bolts
   3 — M8x95 Bolts
   4 — M8x85 Bolts with a clamp of conducting of the BMT L1/2 sensor

Diesel models with engines of the OM603.971 series

Details of installation water on diesel models with engines of the OM603.971 series


 PERFORMANCE ORDER

1. Empty the cooling system (see the Head Routine maintenance).
2. Remove a radiator (see the Section Removal and installation of a radiator of the cooling system - an installation detail).
3. Remove the fan coupling.
4. Disconnect a negative wire from the battery.
5. Weaken bolts (2) fastenings of an asterisk of the pump.
6. Take off a generator drive belt.
7. Turn off a pulley of the pump (5).
8. Disconnect branch pipes (3) and (4) from the pump.
9. Remove the generator (15).
10. Remove a support of the generator (16).
11. Remove a pump housing (11) together with the pump.
12. Replace laying (14). Wipe sealing surfaces.
13. Unscrew the pump (6).
14. Replace laying (10).

Diesel models with engines of the OM606.961 series

Details of installation water on diesel models with engines of the OM606.961 series

03 — the Clamp
5 — a cooling system pump Pulley
6 — the cooling system Pump
9 — the Directing plugs

10 — Laying
11 — a cooling system Pump housing
17 — the VMT Sensor
110, 110a — Tubes of supply of compressed air


 PERFORMANCE ORDER

1. Merge cooling liquid.
2. Remove the fan coupling.
3. Weaken a bolt of fastening of a pulley (5) of the pump of the cooling system.
4. Take off a generator drive belt.
5. Remove a pulley (5) of the pump of the cooling system.
6. Install the piston of the first cylinder in the provision of VMT.
7. Turn off an arm of fastening of the BMT (17) sensor.
8. Check installation of the VMT sensor and, if necessary, adjust it.
9. Turn off bolts of fastening of the pump of the cooling system (6) to a pump housing (11).

Installation

Petrol models with series 119.97/98 engines

Installation is made as it should be, the return to removal.

Order of tightening of bolts of fastening of the pump of the cooling system on petrol models with engines of the M119.97/98 series

Petrol models with engines of the M120.97/98 series

 PERFORMANCE ORDER

1. Wipe sealing surfaces.
2. Replace laying of the pump.
3. Further installation is made as it should be, the return to removal. Check the cooling system for lack of leaks.

Diesel models with engines of the OM603.971 series

Installation is carried out as it should be, the return to removal.

Diesel models with engines of the OM606.961 series

Installation is carried out as it should be, the return to removal. Replace laying (10) and wipe sealing surfaces.

Details of installation water on diesel models with engines of the OM606.961 series

03 — the Clamp
5 — a cooling system pump Pulley
6 — the cooling system Pump
9 — the Directing plugs

10 — Laying
11 — a cooling system Pump housing
17 — the VMT Sensor
110, 110a — Tubes of supply of compressed air

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