Car engine cooling system Mercedes C-Class (W202)

Coolant circulation circuit
Once the engine has cooled down, the coolant circulates only in the cylinder head, as well as in the engine block and, if the heating system is open, in the heat...

Coolant (petrol engines)
1. Engine cylinder block; 2. Cylinder head; 3. Liquid cooling system pump; 4. Coolant regulator (thermostat); 5. Upper coolant pipe; 6. Radiator with horizontal coolant...

Coolant (diesel engines)
1. Expansion tank; 1a. Silicate reserve (preventing aluminum corrosion); 2. Radiator with horizontal coolant flow; 3. Coolant regulator (thermostat); 4. Water pump of...

Coolant (cars with air conditioning)
1. Fold down the cover for the towing eye in the front spoiler. 2. Remove the plug on the right side of the engine compartment cover and place the hose through the hole...

Antifreeze for radiator
The cooling system is filled with a mixture of water, antifreeze and anticorrosive agent. This mixture prevents damage due to freezing and corrosion, the formation of...

Coolant thermostat (thermostat)
Attention! If the engine heats up after the car has traveled a short distance, this may be due to the radiator being clogged with limescale deposits. As the engine heats...

Checking the cooling system
Using a standard test device, you can check for leaks in the cooling system and the operation of the relief valve in the threaded cap of the cooling system. Attach the...

Hydraulic fan clutch — removal and installation
4-cylinder petrol engine 1. Open-end wrench attachment; 2. Torque wrench; 3. Counter support at pulley with flat lock washer; 3a. Counter support at the pulley with...

Liquid Cooling System Pump — Removal and Installation
Gasoline engine 1. Bolt M6x45, 10 Nm.; 2. Bolt M6x95, 10 Nm.; 3. Bolt M6x25, 10 Nm.; 4. Bolt M8x85, 20 Nm.; 11, 12, 32. Coolant hoses; 33. Pulley; 33a. Bolt, 12 Nm.; 35....

Radiator — removal and installation
Gasoline engine After a relatively long period of operation of the car, the thin channels in the radiator can become clogged with residual coolant and lime deposits....

Fan shroud — removal and installation
4-cylinder petrol engine Removal 1. Remove the cooling fan hydraulic clutch. 2. Disconnect the coolant hose (4) at the fan shroud (11). 3. Remove the retaining springs...

Diagnostics of cooling system faults
Diagnostics of cooling system faults Cause Method of elimination Coolant temperature too high, indication is in the red area of the scale Too little coolant in the...

Diagnostics of malfunctions of the liquid level indication system
Diagnostics of malfunctions of the liquid level indication system Cause Method of elimination The indicator light comes on when the engine is running and the coolant...

Engine overheating
Many drivers face the need for expensive repairs, although they could have been avoided by paying attention to the first signs of an impending breakdown in time. The...

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190 (W201) (1982-1993)