S-class W202 Mercedes

1993-2000 of release

Repair and car operation



W202 Mercedes
+ 1.2. General information
+ 2. Maintenance
+ 3. Engines
+ 4. Greasing system
- 5. Cooling system
   - 5.2. Cooling liquid
      5.2.2. Diesel engine
      5.2.3. Cars with the conditioner
   5.3. Antifreeze for a radiator
   5.4. A temperature regulator cooling liquids (thermostat)
   5.5. Check of system of cooling
   5.6. Hydraulic coupling of the fan
   5.7. Pump of system of liquid cooling
   5.8. Radiator
   5.9. Fan casing
   5.10. Diagnostics of malfunctions of system of cooling
   5.11. Diagnostics of malfunctions of system of indication of level of liquid
   5.12. Engine overheat
+ 6. Heating, ventilation
+ 7. Ignition system
+ 8. Fuel system
+ 9. Transmission
+ 10. Running gear
+ 11. Steering
+ 12. Brake system
+ 13. Body
+ 14. Electric equipment
+ 14.2. Electroschemes








b47c026d b47c026d


5.2. Cooling liquid

5.2.1. Petrol engines

GENERAL INFORMATION

1. Block of cylinders of the engine
2. Head of the block of cylinders
3. Pump of system of liquid cooling
4. A regulator cooling liquids (thermostat)
And – a mode of circulation of cooling liquid on a small contour. Cooling liquid circulates only in the engine at its temperature below 87 ° With
In – the mixed mode. At temperature of cooling liquid within 87–102 ° About a regulator of cooling liquid it is partially open. The last proceeds and through a radiator
With – a cooling mode. At temperature of cooling liquid is higher 102 ° About its regulator it is completely open. All cooling liquid proceeds through a radiator
5. The top pipeline of cooling liquid
6. A radiator with a horizontal stream of cooling liquid
7. The bottom pipeline of cooling liquid
8. Oil radiator
10. Compensatory tank
11. A silicate stock for prevention of corrosion of aluminum alloys
12. Drain tank
13. The line for air removal
14. Filling line
15. Heat exchanger of system of heating
16. Heating supply
17. Branch of heating on the right
18. Branch of heating at the left

Within servicing it is necessary to replace cooling liquid each 3 years. If at repair of a head of the block of cylinders laying of a head of the block, a radiator, the heat exchanger or the engine were replaced, in each case replace cooling liquid. It is necessary, because on the new details made of an easy alloy, in a running in anticorrosive products of disintegration are besieged and form a strong anticorrosive layer. At the cooling liquid which was in the use of these anticorrosive products of disintegration, as a rule, contains insufficiently in order that on new details to form a necessary protective layer.

If within carrying out other repair work cooling liquid merges, use it repeatedly.


Prevention

Cooling liquid is poisonous, and it cannot be poured out or mixed simply with household garbage, and it is necessary to merge in special places.


PERFORMANCE ORDER
1. Disconnect a weight wire (–) the storage battery.
Prevention

The anticreeping code of radio is thus erased.


2. Turn a cover on a compensatory tank to the left while it will not be fixed and superfluous pressure will not disappear from cooling system. Then further turn a cover and completely it remove.
Prevention

If the engine hot, before removal of a cover lay round it a thick rag to avoid burns because of the allocated more hotly cooling liquid or it паров. Uncover only at liquid temperatures below 90 ° Page.


3. Remove the bottom cover of a motor compartment.
4. Get on the drain union of a radiator (shooter) a hose with internal diameter of 12 mm.
5. Establish under a radiator a pure reception vessel. Enter a hose into a reception vessel and open a carving stopper of a drain opening (3).

Plums

PERFORMANCE ORDER
1. Get on a stopper of a drain opening (4) on the block of cylinders of the engine a hose with internal diameter of 12 mm.
2. Establish under the engine a pure reception vessel, enter into it a hose and only weaken a carving stopper of a drain opening, without unscrewing it completely.
3. Completely merge cooling liquid.
4. Tighten a carving stopper of a drain opening on the block of cylinders of the engine with the moment of 30 N of m.
5. Screw in a carving stopper of a drain opening on a radiator with the moment from 1,5 to 2 N of m (manually).
6. If it is got, remove a drain hose.
7. Establish the bottom cover of a motor compartment.

Filling

PERFORMANCE ORDER
1. Check the content of antifreeze in cooling liquid.
2. Fill in cooling liquid to a mark (shooter) through a bulk branch pipe of a compensatory tank (2). At cars without a separate compensatory tank – to a mark in a bulk branch pipe, in case of a black top part of a tank – prior to the beginning of a black part.
3. Connect to the storage battery a weight wire.
4. Leave to get warm the engine idling until the regulator of thermostabilization of cooling liquid (temperature of cooling liquid about 100 ° C) will open. Thus establish heating on full capacity and breakthroughs press an accelerator pedal.
Prevention

At temperature of cooling liquid from 60 to 70 ° C close a compensatory tank.


5. Check tightness of shlangovy connections of system of cooling, and also carving jams of drain openings and the pump of system of liquid cooling.
6. Expose time on hours.
7. Enter an anticreeping code of radio.