Mercedes S-class W202

1993-2000 of release

Repair and car operation

Mercedes W202
+ 1.2. The general data
+ 2. Maintenance service
+ 3. Engines
+ 4. Greasing system
+ 5. Cooling system
- 6. Heating, ventilation
   6.2. The conditioner
   6.3. Additional resistance
   6.4. The heating fan
   6.5. The device of service of heating
   6.6. Diagnostics of malfunctions of system of heating
   6.7. The conditioner: not only "pluses", but also "minuses"
   6.8. Rules of service of the conditioner
+ 7. Ignition system
+ 8. Fuel system
+ 9. Transmission
+ 10. A running gear
+ 11. A steering
+ 12. Brake system
+ 13. A body
+ 14. An electric equipment
+ 14.2. Electroschemes

6.2. The conditioner

The conditioner in car salon establishes temperature below air temperature. If the conditioner is included, in salon humidity of air also decreases. In the presence of the conditioner the dust filter also is always established.

The cooling device is integrated into standard system of heating and ventilation, and the car salon can be cooled also. The conditioner works by a refrigerator principle: the compressor put in action from the engine through клиновой a belt, condenses a vaporous, non-polluting coolant (R 134а).

Thus the coolant heats up and goes to the condenser. There it is cooled and diluted. The isparitelnyj valve injects the cooled liquid into the evaporator which is similar on the design to a refrigerator. The coolant evaporates in it. As a result of evaporation process flowing round outside of a lattice or a pipe air loses heat.

Thus air is cooled and humidity as a result of formation конденсационной a moisture raises.

At the rotating engine and the included fan in car salon cooled air through various entrance apertures can arrive.

Mercedes-Benz The S-class is available on sale with two variants of cooling: the conditioner and an automatic climate. Differences of these two variants consists in management and service.

While at the established conditioner temperature adjustment is carried out separately for the left and right part of salon, at an automatic climate the temperature is regulated simultaneously for the right and left part of salon of the car.

Advantage of an automatic climate in front of the conditioner is that there is in addition a switching "AUTO". If it is put in action there is completely an automatic control of quantity of air and its distribution in salon. If "AUTO" it is disconnected, the driver himself can define quantity of air and its distribution, as at usual heating and ventilation, but, naturally, also for both parts of salon of the car together.

The prevention

Repair work on air conditioning installation should be made only in specialised repair shop.