Mercedes C-Class

W203 since 2000 of release

Repair and car operation

+ Mercedes-Benz Cars of a class C (W-203)
+ Operation manual
+ Routine maintenance
+ Engine
- Cooling and heating systems
   - Cooling system
      Antifreeze - means of protection from freezing
      Replacement of cooling liquid - general comments
      Removal and replacement of hoses of system of cooling
      Removal and thermostat installation
      Thermostat check
      Check of system of cooling under pressure
      Removal and installation of the pump of cooling liquid
      Removal and fan installation
      Removal and radiator installation
   + Systems of ventilation, heating and air conditioning
+ Power supply system and release
+ engine Electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Antifreeze - means of protection from freezing

Cooling liquid

The system of cooling is all-the-year-round filled with a mix of water, antifreeze and anticorrosive means. It interferes with a rust and corrosion, adjournment of salts and, besides, increases temperature of boiling of cooling liquid. In cooling system because of liquid expansion when heating superfluous pressure is created that also conducts to temperature increase of boiling of cooling liquid. Pressure is limited located in a cover of a broad tank to the valve which opens at pressure 1.4 – 2.0 atm. For faultless functioning of system of cooling it is required to be insured from boiling of cooling liquid at which the steam stopper therefore circulation of liquid decreases can be formed and cooling of the engine worsens. The temperature of boiling should be raised. For this purpose the cooling system always should be filled with a mix of water and the listed additives to it.