Mercedes M-Class W163

since 1997 release

Repair and operation of the car

Engine cooling system

Antifreeze - a security measure from freezing

Do not allow hit of antifreeze on open parts of the body and the painted surfaces of the car. Immediately wash away casual splashes a plentiful amount of water. Remember that antifreeze is extremely toxic liquid and its hit in an organism even in small amounts is fraught with the most serious consequences, up to a lethal outcome. Never leave antifreeze stored in leaky closed container, immediately collect the cooling liquid spilled on a floor. Remember that the sweetish smell of antifreeze can draw to itself attention of children and animals. About ways utilization of the fulfilled cooling liquid consult with local authorities, - in many regions of the world special points on different reception of working off are equipped. Do not merge old cooling liquid in the sewerage and on the earth at all!

Recently nontoxical grades of antifreeze are developed, nevertheless, they also had to be utilized in an organized order.

Cooling liquid

The cooling system is all the year round filled with mix of water, antifreeze and rust-preventing agent. It interferes with a rust and corrosion, adjournment of salts and, besides, increases temperature of boiling of cooling liquid. In the cooling system because of expansion of liquid when heating excessive pressure is created that also leads to increase in a boiling point of cooling liquid. Pressure is limited to the valve located in a cover of a broad tank which opens with a pressure of 1.4 ÷ of 1.6 atm.

Additional efficiency of functioning of the cooling system is provided due to increase in a boiling point of cooling liquid. Excess of a boiling point leads to formation of the steam traffic jams breaking normal circulation of liquid in a cooling path.

Considering told, for gas station of the cooling system has to it is necessary to use only mix of the required structure at all seasons of the year (see Specifications).