BMW 3 of the E46 series

since 1998 release

Repair and operation of the car

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 of 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	R	21
Parking light forward	W	5
Fog light forward	HB4	55
Lateral repeater of turn	W	5
Turn signal the back	P	21
Stoplight / back lamp	R	21/4
Backing lamp	R	21
Back foggy lamp	R	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 feet, 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.

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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 — a 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	The light brown
7.5	The brown
10	The red
15	The blue
20	The yellow
30	The green

Efforts of a 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 12 V with system of electric equipment with grounding on a negative pole. Power supply of all illuminants 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 illuminants 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.