Mercedes of the S-class W202

1993-2000 of release

Repair and operation of the car



Mercedes W202
+ 1.2. General information
+ 2. Maintenance
+ 3. Engines
+ 4. Lubrication system
- 5. Cooling system
   + 5.2. Cooling liquid
   5.3. Antifreeze for a radiator
   5.4. Temperature regulator of cooling liquid (thermostat)
   5.5. Check of the cooling system
   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 the cooling system
   5.11. Diagnostics of malfunctions of system of indication of level of liquid
   5.12. Engine overheat
+ 6. Heating, ventilation
+ 7. System of ignition
+ 8. Fuel system
+ 9. Transmission
+ 10. Running gear
+ 11. Steering
+ 12. Brake system
+ 13. Body
+ 14. Electric equipment
+ 14.2. Electrical circuitries






5.6. Hydraulic coupling of the fan

GENERAL INFORMATION

4-CYLINDER PETROL ENGINE

1. Nozzle of a rozhkovy wrench
2. Dynamometer wrench
3. A countersupport at a pulley with a flat lock washer
3a. A countersupport at a pulley with the bolts having an internal hexagon
25. Fan
25a. Bolt 6 x 14, 10 N. of m.
26. Sealing ring
26a. Cap nut
33. Pulley
33a. Flat lock washer
And – Untwisting
In – Screwing up

Removal



PERFORMANCE ORDER
1. Turn off Rozhkov a key a cap nut, at the same time by means of a countersupport clamp a pump pulley for supply of cooling liquid.
Prevention

The nut has the left carving.


2. Extend the hydraulic coupling together with the fan.
3. Unscrew 3 fixing bolts and separate the fan from the coupling.

Installation

PERFORMANCE ORDER
1. Connect the coupling to the fan.
Prevention

The correct assembly position of the fan is defined by means of the welded-on edge.


2. Screw the hydraulic coupling with m 10 N.' moment.
3. Insert the hydraulic coupling together with the fan and screw with the moment in 40 N. m. For this purpose the dynamometer wrench with a nozzle of a rozhkovy wrench is required.
Prevention

The nut has the left carving.



6-CYLINDER PETROL ENGINE

Removal



PERFORMANCE ORDER
1. Remove a fan casing.
2. Unscrew a bolt (3) on the hydraulic coupling of the fan. At the same time hold a pulley from rotation to the opposite side by means of a self-made key on a lyska of a disk (6).
3. Take the fan together with the hydraulic coupling.

Installation

PERFORMANCE ORDER
1. Thus insert the coupling fan that the welded-on number of a detail was ahead from a radiator.
2. Screw the coupling fan with m 45 N.' moment, at the same time hold a pulley from rotation to the opposite side.
3. Establish a fan casing.

2,0 / 2,2 L DIESEL ENGINE


Removal

PERFORMANCE ORDER
1. Unscrew (And) a cap nut (2a) a wrench (5), at the same time record a pulley of the pump of system of liquid cooling by means of a countersupport (9).
Prevention

The nut has the left carving.


2. Take the hydraulic coupling (2) together with the fan (1).
3. Unscrew three fixing bolts (3) and separate the fan from the coupling.

Installation

PERFORMANCE ORDER
1. Insert the coupling into the cooling system fan. By means of a ledge on a ring of the fan the correct assembly position of the fan is defined. Marking of "VORNE FRONT" specifies in the direction of the movement.
2. Screw the hydraulic coupling of the fan with m 10 N.' moment.
3. Insert the coupling into the fan of the cooling system and together screw them on a pump shaft for supply of cooling liquid with m 45 N.' moment. For this purpose the dynamometer key with a nozzle of a rozhkovy key 36 is required.
Prevention

The nut has the left carving.



2,5 L DIESEL ENGINE

Removal



PERFORMANCE ORDER
1. Remove a casing of the fan and lay it over the cooling system fan.
2. Unscrew the hydraulic coupling together with the cooling system fan, including a bolt with an internal hexagon. At the same time hold a pulley by means of a countersupport.
3. Extend the fan (1) together with the coupling (2) and its casing up.
4. Unscrew the fan with four bolts (4) from the hydraulic coupling.

Installation

PERFORMANCE ORDER
1. Insert the hydraulic coupling into the fan of the cooling system and screw it with m 10 N.' moment.
Prevention

Marking of "VORNE FRONT" specifies in the direction of the movement.


2. Put together the coupling with the fan of the cooling system and a fan casing.
3. Screw the coupling fan with m 45 N.' moment, at the same time stop a pulley.
4. Mount and adjust a fan casing.