BMW 5 Series E39

since 1996-2001 release

Repair and operation of the car



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









электродвигатели siemens