Electrical equipment and devices of the car BMW 5 Series E39

Electrical Equipment System — General Information
When checking the electrical system, a car enthusiast always encounters such concepts as voltage, current and resistance in technical documents. Voltage is...

Measuring instruments
To measure the parameters of on-board electrics, the retail network sells so-called universal measuring devices. They combine in one unit a voltmeter for...

Measurement technique
Voltage measurement You can verify the presence of voltage using a simple test lamp or voltage tester. This way, first of all, you find out whether there is...

Installation of additional components of the electrical equipment system
Wires that need to be laid when installing additional components in addition to the wires installed in the vehicle as standard must, whenever possible, always...

Troubleshooting electrical equipment
When troubleshooting an electrical system, a systematic approach is important. This applies to both checking failed incandescent lamps and checking non-working...

Checking switches
Most electrical consumers are switched on and off manually via a switch. In addition, there are switches that operate automatically. These switches include...

Checking the relay
Many electrical circuits have a built-in relay. The switching relay works as a switch. When the high beam is turned on manually, the relay receives a command...

Checking the windshield wiper motor
The windshield wiper motor is located near the windshield under the water drainage cover. To check it, the corresponding cover must be removed. Terminal...

Checking the brake light
When the brake light does not come on, you should first check the condition of the fuse in the fuse box. If the fuse is OK, then you need to check the brake...

Checking the rear window heating
When the rear window heating is switched on, the glass field with visible conductors should be free of fogging or ice after a while. If there is a malfunction,...

Removal and installation the switch
Disconnect the negative (-) battery cable. The battery is located in the luggage compartment behind the right side trim. Caution: This will erase the contents...

Removal and installation an antenna amplifier (Touring)
Removal Unfasten the trim at the top of the roof frame. Note: The clips can be left on the pad pins. It is advisable to insert all 5 clips into the bushings...

Removal and installation the temperature sensor
Removal The sensor for the ambient temperature gauge is located in the trim on the right under the front bumper. Pull temperature sensor "1" downwards from...

Removal and installation / checking the horn
On the right side behind the front bumper, there is one high-pitched and one low-pitched horn. To protect the horn contacts, a relay is installed between the...

Installation of remote radio control
Installation of the remote radio control of the central locking system is carried out after replacing the batteries in the car key, if the replacement lasts...

Adjusting the angle of the headlight beam
The headlight beam tilt adjustment system consists of a regulator located in the passenger compartment next to the fog light switch and actuator motors at the...

Removal and installation the electric motor of the headlight beam angle adjustment system
Removal Remove the headlight . Remove the diffuser. To do this, slightly press the 5 plastic clips. Using a screwdriver, slightly press the clamp between the...

Replacing fuses
To avoid damage to the wires and consumers of the electrical system due to short circuits and overloads, individual electrical circuits are protected by fuses....

Location of fuses
The location of the fuses depends on the equipment and year of manufacture of the car. The correct location of the fuses is indicated in the glove box under...

Lighting system — general information
The lighting system includes: main headlights, taillights, brake lights, reversing lights, turn signal lights, fog lights, license plate lights, interior...

Table of lamps
In order to be able to replace the bulb at any time, it is necessary to always have a box with spare bulbs in the car. Such boxes with spare bulbs are...

Replacing incandescent lamps
Turn off the corresponding electric lamp. Main headlight Warning: Halogen lamps for high and low beam headlights, as well as for fog lights, are under...

Removal and installation headlights
Note: Removal and installation of the headlight lens are described in the chapter " Removal and installation the electric motor of the headlight beam angle...

Headlight adjustment
Correct headlight adjustment is of great importance for road safety. Accurate headlight adjustment is only possible with a special adjustment device....

Removal and installation the rear light
Limousine Removal Remove the lamp holders, see chapter " Replacing incandescent lamps ". Unscrew 4 nuts and press the headlight diffuser outward. Weld the...

Devices — General information
In BMW 5-series cars, all instruments are located on the instrument panel. The instrument panel is removed only to replace the instrument lighting lamps....

Removal and installation the instrument panel
Removal Move the steering column all the way down and extend it fully. Unfasten the Slava and the wooden pads to the right of the steering column. Remove 3...

Replacing the instrument cluster bulbs
Remove the instrument panel assembly. Disconnect the plug connector of the electronic unit, having first unfastened and folded back the plug locking bracket....

Removal and installation the flashing light/wiper switch
Note: The flasher switch and windshield wiper switch are removed in the same way. The flasher switch is described below as an example. Removal Move the...

Removal and installation radio
Removal Removal and installation are explained using an example: a BMW Business radio. The radio consists of two separate parts: the radio itself with a...

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