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
+ 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
- Onboard electric equipment
+ Dignostic of electric elements
+ Lighting and alarm system
+ Devices and equipment
+ Schemes of electric equipment
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Onboard electric equipment
Arrangement of electronic control units systems of the car on a body
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
Relay box in a motive compartment. The model 320d with uncovered is shown
Color marking of safety locks
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.