BMW 3 of the E46 series

since 1998 release

Repair and operation of the car

BMW 3 of the E46 series
+ BMW 3 Cars (E46)
+ Current leaving and service
+ Engine
+ Cooling systems, heating
- Power supply systems, injection and release
   Security measures and rules of observance of purity during the work with fuel system
   Removal and installation of the sensor of a reserve of fuel / fuel pump
   Check of the sensor of a reserve of fuel
   + Power supply system of petrol engines
   + System of injection of fuel of the petrol engine
   - Power supply system of diesel engines
      Principle of operation of the diesel engine
      Work of system of injection
      Device of heating of the fuel filter
      Removal and installation of nozzles
   + System of production of the fulfilled gases
+ Electric equipment of the engine
+ RKPP and transmission line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment

Removal and installation of nozzles

The damaged nozzles can lead to strong blows during the operation of the engine, the damaged bearings reminding operation of the engine with. In the presence of the similar phenomena it is necessary to start the engine on single turns and in turn to weaken cap nuts of pipelines of a high pressure. If at an otvorachivaniye of any nut blows disappear, it indicates existence of defect of the corresponding nozzle. The nozzle by means of the manometer is checked (work HUNDRED).

The damaged nozzles have to be replaced as their adjustment or repair are not possible.

First signs of malfunction of a nozzle following:

- Falling of engine capacity;
- Excessively black exhaust gases;
- A dense blue smoke at cold start;
- High fuel consumption;
- Engine overheat;
- Knocks in one or several tsi-lindra;
- Incomplete combustion.


1 Remove the inlet pipeline, address to the Section Removal and installation of the inlet pipeline.
2 Clear fuel-supply lines of a high pressure a cold cleaner.

3 Remove fuel-supply lines of a high pressure. For this purpose turn off a cap key, for example, of HAZET 4550 cap nuts at nozzles and TNVD.

Do not deform fuel-supply lines. Remove fuel-supply lines in a set.

4 Close openings protective caps or a film with elastic bands that dirt did not get to them.
5 Disconnect the cable going to a nozzle of the fourth cylinder.

6 Disconnect drainage hoses between nozzles by means of pincers.

Drainage hoses have to be surely replaced.

7 Disconnect collars of fastening of nozzles-2-and take out nozzles.

If the nozzle is not taken out, it is possible to use a shock stripper. For its application it is necessary to make the special tool which screws on on a nozzle.

The specified tool can be made as follows. Cut off an old nozzle at distance about 5 cm behind a cap nut. Solder solid solder M6 nut to the cut-off end of the pipeline.

Carefully clear the made tool. The dirt which got to a nozzle can put it out of action!

8 Screw the tool on a nozzle and attach a shock stripper to the soldered nut. Pull out a nozzle.
9 Remove heat-shielding laying.


10 Surely establish new heat-shielding laying between a head of cylinders and a nozzle.
11 Insert a nozzle.

The nozzle with the sensor of movement of a needle is always inserted into the fourth, that is into the back cylinder. It is possible to recognize her on the attached cable.

12 Join a cable of the fourth nozzle.
13 Establish tightening collars on nozzles. Tighten nuts of fastening of collars the moment of 10 N • m.
14 Put on new drainage hoses between nozzles.
15 Fix fuel-supply lines of a high pressure to nozzles and TNVD the moment of 25 N • m.
16 Install the inlet pipeline, address to the Section Removal and installation of the inlet pipeline.