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
+ 6. Heating, ventilation
+ 7. System of ignition
- 8. Fuel system
   - 8.1.1. Introduction
      8.1.2. Fuel tank
      8.1.3. Fuel level sensor
      8.1.4. Fuel pump
      8.1.5. Fuel filter
      8.1.6. Air filter
      8.1.7. Cross pipe of the air filter
      8.1.8. Inlet gas pipeline
      8.1.9. Cable gas / lever of a butterfly valve (DB)
      8.1.10. Cable of management of gas (DB)
      8.1.11. Contour of fuel of the diesel engine
      8.1.12. Prestarting heating of diesel fuel
      8.1.13. Fuel thermostat
      8.1.14. Hydrovalve case
      8.1.15. Cable gas / lever of a butterfly valve (DD)
      8.1.16. Cable of management of gas (DD)
   + 8.2. System of injection of petrol engines
   + 8.3. System of injection and power supply of diesel engines
   + 8.4. System of production of exhaust gases
+ 9. Transmission
+ 10. Running gear
+ 11. Steering
+ 12. Brake system
+ 13. Body
+ 14. Electric equipment
+ 14.2. Electrical circuitries




8.1.4. Fuel pump
GENERAL INFORMATION

PETROL ENGINE
 

Removal
Prevention

Surely pay attention to good aeration of a workplace. Vapors of fuel are poisonous, avoid use of naked flame because of risk of fire!

 The fuel pump if to look in the direction of the movement, is located on the car bottom before the back bridge on the right.

PERFORMANCE ORDER
1. Disconnect a weight(s) wire from the plug of the rechargeable battery.
Prevention

At the same time the anticreeping code of radio is erased.
2. Reduce pressure of vapors of fuel, for this purpose quickly open a cover of a bulk mouth of the fuel tank.
3. Remove the protection cover (69), previously having noted its assembly situation.
4. Disconnect from clips inlet (53) and pressure head (52) pipelines, and also a ventilating hose (66) with standard hose clips. Mark hoses an adhesive tape for installation simplification.
5. Unscrew on the fuel pump the pressure head pipeline with a hollow bolt. Wipe the remains of the spilled fuel a rag.
6. Remove an inlet hose, previously having weakened a hose collar.
7. Take a trunk floor sheeting.
8. Remove the protection cover of a cable well and protective rug.
9. Separate shtekkerny connection on the fuel pump and bring him through a trunk floor. For this purpose squeeze out the rubber plug.
10. Disconnect from a spring clip on the holder an electric wire.
11. Remove a ventilating hose (66), previously having weakened a hose collar (66a).
12. Remove an inlet fuel hose (53), previously having weakened a hose collar (53a).
13. Unscrew on the holder (57) a bolt (57/1).
14. Take the fuel pump (M3m1).

Installation
PERFORMANCE ORDER
1. By means of a guide insert the fuel pump into a groove of the plastic plug (56a), and it is (57) in the directing holder. Thanks to it the fuel pump is fixed by means of the plastic plug. The plastic plug has to be surely installed between the fuel pump and the holder. At the same time pay attention to that she acted on both parties of the holder. Otherwise at direct contact of the fuel pump with the holder there can occur contact corrosion of metals.
2. Screw the fuel pump on an arm.
3. Spread a ventilating hose and record it a collar.
4. Spread an inlet fuel hose and record it a collar.
5. Enter an electric wire through the bottom of a luggage carrier and connect the plug. Condense an opening in the luggage carrier bottom with the rubber plug.
6. Establish the isolating rug and the protection cover for a cable well.
7. Establish a luggage carrier bottom sheeting.
8. Insert an electric wire into spring clips on the holder and fix by means of linear clamps.
9. Screw a fuel-supply line by means of a hollow bolt and with a new copper sealing ring (62). Approximate moment of an inhaling of 25 N. of m.
10. Remove hose clips.
11. Install the protection cover.
12. Connect a weight(s) wire to the rechargeable battery.
13. Expose time on hours.
14. Enter an anticreeping code of radio.