BMW 3 Series E46

since 1998 release

Repair and operation of the car



BMW 3 Series E46
+ BMW 3 cars (E46)
+ Current leaving and service
+ Engine
+ Cooling systems, heating
+ Power supply systems, injection and release
+ Engine electric equipment
+ RKPP and transmission line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   + Dignostic of electric elements
   + Lighting and alarm system
   + Devices and equipment
+ Schemes of electric equipment





Onboard electric equipment

Specifications

Separate characteristics are provided also in the text of the Head and in case of obligation of their performance are highlighted in bold type


Arrangement of electronic control units systems of the car on a body

 

 

 


Glow lamps of 12 V

Type

Power, W

Passing beam

H7

55

Driving beam

H1

55

Turn signals lobbies

Р

21
Parking light forward
W
5
Fog light forward
HB4
55
Side repeater of turn
W
5
Turn signal back
P
21
Stoplight / back lamp
Р
21/4
Backing lamp
Р
21
Back foggy lamp
Р
21
Illumination of registration plate
C11
5
Additional stoplight
light-emitting diode reyka1)
Internal lighting
spotlights
5
Reading illumination lamp
XE
6
Illumination of the region of legs, pocket
spotlights
5
Illumination of a luggage carrier / motive compartment
spotlights
10
Illumination of a cosmetic mirror
spotlights
10
1) At failure of one light-emitting diode all stoplight is subject to replacement.

Boxes of the relay and safety locks

 

Depends on the equipment of the car and year of its release. The scheme of an arrangement of safety locks is in a ware box under a payment of safety locks.

.


Arrangement of safety locks

 


Relay box arrangement behind a ware box


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

3 — the relay of fog lights
4 — the relay of sound signals


Relay box in a motive compartment. The model 320d with uncovered is shown

1 — the main DDE relay (320d)
relay of coils of ignition, plug 15 (320i, 323i, 328i).
2 — the monitor of preliminary heat (320d)
main DDE relay (all petrol engines)

3 — the screen wiper relay


Color marking of safety locks

Current, And

Color marking

5

Light brown

7.5

Brown

10

Red

15 Blue
20 Yellow
30 Green

Efforts of tightening of threaded connections

The moments of an inhaling of fixture are given also in the text of the Head and on some illyustratsiyakh*.

* The moments of an inhaling highlighted in the text in bold type are subject to exact observance; the efforts which are not highlighted in bold type are given only approximately

Cars of this brand are equipped with 12 V system of electric equipment with grounding on a negative pole. Power supply of all lighting fixtures and electric units is carried out from the battery of lead-acid type recharged from the generator of alternating current.

This Head is devoted to the description of procedures of service and repair of some components of system of onboard electric equipment which number treat except concrete considered below also all lighting fixtures and electric accessories which are not connected directly with the engine. Besides, procedures of diagnostics of malfunctions of electric equipment of the general order are considered.

When performing any works on repair and service of components of system of electric equipment it is necessary to disconnect without fail previously a negative wire from the battery in order to avoid receiving an electric trauma and/or ignition.