E39 BMW
+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
- Engine electric equipment
+ ignition System
+ System of preheat of the diesel engine
+ charge and start Systems
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ electric equipment Schemes
+ System of onboard diagnostics
|
Engine electric equipment
General information
The structure of electric equipment of the engine includes all components of systems of ignition, start and a charge. In a type of that on the functional purpose these components belong to directly ensuring functioning of the engine, they are considered separately from components of onboard electric equipment, such as lighting devices, monitors, etc.
At work with electric equipment always it is necessary to observe certain security measures:
a) Be careful - electrodevices especially easily fail at maloperation with them during check, connection and service.
b) Do not leave ignition for a long time included at the switched-off engine.
c) Never disconnect wires from the battery at the working engine.
d) At connection of wires from the auxiliary power supply at emergency start of the engine observe polarity.
e) Always disconnect a negative wire from the battery the first and connect the last in order to avoid short circuit at a casual contact the tool during time отдавания / tightenings of a clip of the plug.
Specifications
| | Separate characteristics are provided also in the text of Head and in case of obligation of their performance are allocated with a bold print |
System of ignition and DME management |
Spark plugs with two electrodes of weight |
|
NGK |
BKR of 6 EK |
BOSCH |
F7 LDCR |
| Specifications |
Model
|
520i, 523i, 528i |
Engine type |
М52 |
Turns of idling, rpm |
750 ± 50 |
Maximum turns, rpm |
6500 ± 50 |
Concentration WITH volume, % before/after
catalytic converter |
0.7 ±0.5/0.5 ± 0.3 |
Resistance at +20°С (if it is not set differently): |
|
Pulse sensor
turns/situation numbers |
1280 ± 128 Ohm |
Pulse sensor of recognition of the cylinder |
|
• between conclusions 1 and 2 |
</= 1.0 Ohm |
• between conclusions 2 and 3 |
> 10 megohms (infinitely) |
Sensor of temperature of the engine |
|
• at temperature
cooling liquid 20 ° ± 3°С |
2.2-2.7 kiloohm |
• at temperature
cooling liquid 80 ° ± 3°С |
2.2-2.7 kiloohm |
The sensor of temperature of soaked-up air
|
|
• at air temperature 20 ° ± 3°С |
2.2-2.7 kiloohm |
• at air temperature 50 ° ± 3°С |
0.76-0.91 kiloohm |
Ignition coil |
|
• primary winding |
0.8 ± 0.1 Ohm |
• secondary winding |
it is not measured |
Spark plug tip |
5 kiloohms of ± 500 Ohm |
| Storage battery |
Tension |
12 In, negative weight |
Capacity |
|
• 520i, 523i, 528i |
70 Ach |
• 535i, 540i, 525tds |
90 Ach |
| Charging degree |
|
• it is completely discharged, density |
1.15, 16 °Ве |
• полуразряжена, density |
1.22, 24 °Ве |
• it is completely charged, density |
1.26, 30 °Ве |
The electrolit density in all banks should
to be identical, the maximum difference |
no more than 0.04 g/ml
|
Greasing for battery plugs |
Bosch Ft 40 v 1 |
Food element brelka of remote control |
|
Type
|
CR1220 |
| Generator |
Type |
Valeo/A13VI18 |
Current, And |
80 (бенз.), 110 (диз.) |
| Starter |
Type |
Marelli/943222035010 |
Capacity, kW |
2.2 |
Efforts of a tightening of carving connections
The moments of an inhaling of fixture are given in the text of Head and on some иллюстрациях*.
*vydelenny in the text a bold print the moments of an inhaling are subject to exact observance; the efforts not allocated with a bold print are given only roughly
| Characteristic |
Value |
| Spark plugs |
25 Nanometers |
|
|