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 thermostat

Details of installation of the thermostat

Details of installation of the thermostat on models with petrol engines of the M104.94/99 series; the thermostat is installed by the ball valve (it is specified by an arrow on a note) up


1 — the Thermostat 2 — Consolidation 3 — a thermostat Cover 4 — Bolts 5 — the Arm

Details of installation of the thermostat on models with petrol engines of a series 119.97/98


1 — the Branch pipe 2 — the Cover 3 — the Sealing ring 4 — the Thermostat 5 — the Probe of measurement of level of motive oil

Details of installation of the thermostat on models with petrol engines of a series 120.980/982


1, 2 — Branch pipes 3 — a thermostat case Cover 4, 5 — temperature Sensors 4a, 5a — Epiploons 6 — the Arm	7 — the Thermostat 7a — the Profile plate 8 — the Sealing ring 10, 11 — Bolts

Details of installation of the thermostat on models with diesel engines


17 — the thermostat Case 19 — the Sealing ring 20 — the Thermostat

Removal

PERFORMANCE ORDER

1. Disconnect a weight cable from the battery.
2. Empty the cooling system (see the Head Routine maintenance). If you are not going to fill in new liquid in system, keep merged for the subsequent use.
3. Disconnect a branch pipe from the thermostat case.
4. Remove, the thermostat cover/case.
5. Take the thermostat from the case, - try to remember an arrangement of the ball valve of removal of air and orientation of the thermostat.

Installation

Installation is carried out as it should be, the return to removal. Do not forget to replace a sealing ring.

The thermostat is installed by the ball valve of removal of air up.