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
      The general information and security measures at work
      Principle of work of DME system
      Removal and installation of injectors
      Check of system of injection of the petrol engine
      Check and adjustment of turns of idling and concentration WITH
   + Power supply system of diesel engines
   + 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 injectors

Fuel distributive highway


1 — a vacuum hose of the regulator of pressure of fuel 2 — a fuel branch pipe	3 — a fastening point 4 — a safety lock

New injectors have preservation. In 5 min. work they owing to the passing fuel are exempted from preservation. After removal from the engine injectors should not be stored long owing to danger of their corrosion.

REMOVAL

1 Remove an aircombined box, address to the Section Removal and installation of a box of an air inlet.

Models 316i, 318i

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

The fuel system is under pressure! Before an otvorachivaniye of hose connection put on it a thick rag. After that carefully remove pressure in a hose. There is a danger of the fire, do not smoke.

3 Clear fuel lines. Then unscrew the giving and returnable pipelines.

4 Turn out 2 bolts of fastening of the fuel distributive highway.

Models 320i, 323i, 328i

5 Remove the top cover of the engine.

6 Unscrew screws of fastening-1-and remove a shtekerny level from injectors up.

2 – plug of coils of ignition.

7 Turn out fastening screws (arrows on an illustration) to the fuel distributive highway. Instruction: On an illustration the cover of the engine is not shown.

8 Rasstykuyte socket of sensors of oxygen (2 shooters on the right).

Plugs are marked that not to mix them at assembly.

9 Remove a shtekerny level of injectors and put aside.

The fuel system is under pressure! Before an otvorachivaniye of hose connection put on it a thick rag. After that carefully remove pressure in a hose. There is a danger of the fire, do not smoke.

10 Clear fuel pipelines a cold cleaner. Then, at first disconnect the giving fuel-supply line-1-(from the filter), and then a returnable hose-2-on the fuel distributive highway for what weaken collars. After an otvorachivaniye collars need to be replaced with the new.

Mark hoses not to mix them at assembly (address to an illustration).

11 At some models fuel hoses are fixed by means of lock brackets. For removal squeeze brackets nippers of HAZET No. 4501-1 or the similar tool (shooters on an illustration).

Check a sealing ring before installation. In the presence of damages replace.

12 Turn out fastening bolts (arrows on an illustration) to the fuel distributive highway.

13 Disconnect a vacuum hose-1-at the fuel pressure regulator.
14 Take out the fuel distributive highway complete with injectors from a head of cylinders up. Injectors are simply inserted and can easily be taken out.
15 Remove a safety lock and take out an injector.

INSTALLATION

Replace the deformed sealing rings-1-, thus remember the provision of rings-2-.-1-before installation oil rings vaseline or transmission. Do not apply motive oil, it negatively influences rubber.

16 Insert injectors into the fuel distributive highway and fix brackets.

17 Evenly press the fuel distributive highway with injectors into a head of cylinders.
18 Fix the fuel distributive highway on a head of cylinders.
19 Fix hoses of return and supply of fuel on the distributive highway. Establish new collars and sealing rings, address to the subsection "Removal".
20 Establish a shtekerny level for injectors and fix it.
21 Connect a vacuum hose to the fuel pressure regulator.
22 Models 316i, 318i: Establish the top part of the inlet pipeline, address to the Section Removal and installation of the inlet pipeline.
23 Models 320i, 323i, 328i: Join shtekerny connections of sensors of oxygen and record them. Fix an engine cover.

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