BMW 3 series E46

Since 1998 of release

Repair and car operation


The BMW of 3 series Е46
+ Cars BMW 3 (Е46)
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
- Power supply systems, injection and release
   Security measures and rules of observance of cleanliness at work with fuel system
   Removal and installation of the gauge of a stock of fuel / the fuel pump
   Check of the gauge of a stock of fuel
   - The power supply system of petrol engines
      Removal, installation and check of the relay of the fuel pump
      Removal and installation of the fuel filter
      Removal, installation and adjustment of a drive throttle заслонки
      Removal and installation of the air filter of the engine
   + System of injection of fuel of the petrol engine
   + The power supply system of diesel engines
   + System of release of the fulfilled gases
+ Engine electric equipment
+ Manual transmission and transmission a line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Electric equipment schemes


Removal, installation and check of the relay of the fuel pump

The holder of the relay

1 — the relay of the fuel pump
2 — the relay of the fan of a heater

3 — the relay of antifog headlights
4 — the relay of a sound signal


The relay of the fuel pump is on the holder of the relay behind the block of safety locks. It supplies the fuel pump with an electric current. By means of the safety switch it interrupts fuel giving when at the included ignition impulses of turns do not move, for example, when the engine has decayed.

If for check of system of injection it is necessary to include the fuel pump at the idle engine, disconnect the relay and connect a short auxiliary cable of the plug 30 and 87b. Diameter of a wire should make 1.5 mm.

 REMOVAL

1 Remove a ware box, address to Section Removal and installation of the left ware box and Removal and installation of the right ware box.
2 Take out by means of a small screw-driver sideways a lamp of illumination and расстыкуйте a socket.

3 Turn away screws (arrows on an illustration) and remove downwards a cover-1. From a cover underside take out a wire of a lamp of illumination of a ware box.

4 Wring out a little back a cover-1 and take out from directing-2. Disconnect скобы in area-3.

5 Turn away the screw (the marksman on an illustration) and displace downwards the holder of the relay a little.

6 Remove the relay of the fuel pump-1.



 CHECK

For check of the relay of the fuel pump the storage battery should be charged.

7 Check up a safety lock of system of injection. The arrangement of safety locks is shown on the scheme in the block of safety locks.

8 Take out the relay - 3 Connect a short auxiliary wire of the plug 30 and 87b (the diesel engine: the plug 87). Thus do not damage sensitive contacts of the relay. If it is audible, as the fuel pump joins, replace the relay.

9 If the pump does not work, check up the wires going to the relay and the pump. If necessary replace.
10 Check up the relay / the fuel pump.



 INSTALLATION

11 Establish to the place of the relay.

12 Reject upwards the holder of the relay and fix the screw.

13 Insert a cover into the directing.

14 Lay a wire to a lamp of illumination of a prophetic box from an underside of the top cover. Fix a cover.

15 Attach a lamp of illumination and fix it.
16 Establish to the place of a ware box, address to Sections Removal and installation of the left ware box and Removal and installation of the right ware box.