BMW E39
+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Cooling systems, heating
+ Power supply system and release
- Engine electric equipment
+ System of ignition
+ System of preheat of the diesel engine
+ Systems of a charge and start
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Schemes of electric equipment
+ System of onboard diagnostics
|
Engine electric equipment
General information
All components of systems of ignition, start and charge are a part of electric equipment of the engine. In a look of the fact 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 fixtures, monitors, etc.
During the work with electric equipment it is always necessary to observe certain security measures:
a) Be careful - electric devices 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 a wire 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 with the tool in time otdavaniye / tightenings of a clip of the plug.
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 |
System of ignition and management of DME |
Spark plugs with two electrodes of weight |
|
NGK |
BKR 6 EK |
BOSCH |
F7 LDCR |
| Specifications |
Model
|
520i, 523i, 528i |
Engine type |
M52 |
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 °C (if it is not set differently): |
|
Pulse sensor
turns/situation numbers |
1280 ± 128 Ohms |
Pulse sensor of recognition of the cylinder |
|
• between conclusions 1 and 2 |
</= 1.0 Ohm |
• between conclusions 2 and 3 |
> 10 megohms (infinitely) |
Engine temperature sensor |
|
• at a temperature
cooling liquid 20 ° ± 3 °C |
2.2 - 2.7 kOhm |
• at a temperature
cooling liquid 80 ° ± 3 °C |
2.2 - 2.7 kOhm |
The sensor of temperature of the soaked-up air
|
|
• at air temperature 20 ° ± 3 °C |
2.2 - 2.7 kOhm |
• at air temperature 50 ° ± 3 °C |
0.76 - 0.91 kOhm |
Ignition coil |
|
• primary winding |
0.8 ± 0.1 Ohms |
• secondary winding |
it is not measured |
Spark plug plug |
5 kOhm ± 500 Ohms |
| Rechargeable battery |
Tension |
12 of V, negative weight |
Capacity |
|
• 520i, 523i, 528i |
70 Ач |
• 535i, 540i, 525tds |
90 Ач |
| Charging degree |
|
• it is completely discharged, density |
1.15, 16 °va |
• polurazryazhena, density |
1.22, 24 °va |
• it is completely loaded, density |
1.26, 30 °va |
Electrolyte density in all banks has to
to be identical, maximum difference |
no more than 0.04 g/ml
|
Lubricant for battery plugs |
Bosch Ft 40 v 1 |
Battery brelka of remote control |
|
Type
|
CR1220 |
| Generator |
Type |
Valeo/A13VI18 |
Current, And |
80 (бенз.), 110 (диз.) |
| Starter |
Type |
Marelli/943222035010 |
Power, kW |
2.2 |
Efforts of tightening of threaded connections
The moments of an inhaling of fixture are given 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; efforts which are not highlighted in bold type are given only approximately
| Characteristic |
Value |
| Spark plugs |
25 Nanometer |
|
|
