BMW 5 Series E39

since 1996-2001 release

Repair and operation of the car



BMW E39
+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Cooling systems, heating
- Power supply system and release
   + Power supply system
   + System of injection of the petrol engine
   - Power supply system of the diesel engine
      Turbocompressor
      System of recirculation of the fulfilled gases (EGR system)
      Device of heating of the fuel filter
      Removal of air from fuel system
      Check, removal and installation of the fuel locking valve
      Removal and installation of nozzles
      Check and adjustment of the moment of the beginning of injection
      Removal and installation of the inlet pipeline
   + System of production of the fulfilled gases
+ Engine electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment
+ System of onboard diagnostics





Removal and installation of nozzles

Damages of nozzles can lead to a detonation of the engine and damage of bearings. For troubleshooting of a nozzle it is necessary to turn off one after another cap nuts of the bringing pipelines of high pressure. If at an otvorachivaniye of the next nut the knock stops, then the damaged nozzle is found. It is possible to check nozzles by means of the special device.

Signs of a faulty nozzle following:
   a) Lack of ignition of fuel in the cylinder.
   b) Knock in one or several cylinders.
   c) Engine overheat.
   d) Excessively dense black exhaust.
   e) Deceleration of power of the engine. The increased fuel consumption.
   f) A dense blue exhaust at the cold engine.

 REMOVAL

1. Clear injection pipelines an autocleaner to exclude hit of pollution when opening system.

2. Remove the inlet pipeline, address the Section Removal and installation of the inlet pipeline.

3. Disconnect fuel-supply lines of high pressure at nozzles and TNVD by means of a key (1), for example HAZET 4550. Address an accompanying illustration.

Do not change a form of pipelines. Put on caps for protection against dirt hit openings of nozzles and TNVD.

4. If holders of pipelines act, previously mark their situation with a felt-tip pen. Address an accompanying illustration.

5. Disconnect carefully drain tubes from nozzles.

6. Remove nozzles by means of a head of 27 mm, for example HAZET 4555-1. Nozzles are protected from below by caps.

You watch that nozzles did not fall. Besides, at a nozzle of the 4th cylinder disconnect a cable of the built-in sensor of the beginning of injection. Establish all nozzles on the former places.

7. Take out heat-shielding laying.


 INSTALLATION

1. Heat-shielding laying of nozzles is always established new. Deepening of laying has to look upward. The arrow on an illustration shows towards a head of cylinders.

2. Screw nozzles and fix by their moment offered by Specifications.

3. Fix pipelines by the required moment.

4. Put on drainage hoses.

5. Attach a cable of the sensor of the beginning of supply of fuel to a nozzle of the 4th cylinder.

6. According to markings fix brackets if they acted.

7. Establish a vacuum hose of the amplifier of a brake at the holder of a head of cylinders.

8. Install the inlet pipeline, address the Section Removal and installation of the inlet pipeline.

9. Start the engine and check tightness of fuel system.