BMW 5 series E39

Since 1996-2001 of release

Repair and car operation

+ Introduction
+ The maintenance instruction
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ The power supply system and release
+ Engine electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   Diagnostics of malfunctions of an onboard electric equipment - the general information
   Safety locks
   Fusible inserts
   Chain breakers (thermal relays)
   The relay
   Relay check
   Check of lamps накаливания
   Check of electric motors
   Check of electric switches
   Check of switches of lamps and electric motors
   Check of gauges
   Check of the electric motor of a screen wiper
   Stoplight check
   Check of a heater of back glass
   Removal and switch installation
   Removal and installation of the gauge of temperature
   Removal, installation and check of a sound signal
   Remote control initialization by the uniform lock
   Adjustment of range of light of headlights
   Removal and installation of the electric motor of adjustment of range of light
   Replacement of safety locks
   Arrangement of safety locks
   Illumination devices
   Replacement of lamps накаливания
   Removal and headlight installation
   Adjustment of headlights
   Removal and installation of a back lantern
   Removal and installation of the block of the panel of devices
   Replacement of lamps of the block of the panel of devices
   Removal and installation of the switch of signals of turn/screen wiper
   Removal and radio receiver installation
   Screen wiper
   Replacement of brushes of a screen wiper
   Removal, installation and adjustment snuffled стеклоомывателя
   Removal and installation of a drive of a screen wiper/cover
   Removal and installation of the electric motor of a screen wiper
   Check and pump replacement стеклоомывателя
   Work with electric schemes
+ Electric equipment schemes
+ System of onboard diagnostics

ремонт газовых колонок Нижний Новгород.

Check of electric motors

In the car there are many devices and the comfort devices which drive is carried out from small servomotors. Such devices concern, for example, стеклоподъемники, сдвижная the panel of the hatch of a roof, the uniform lock. Inclusion of electric motors is carried out through switches, in most cases manually.


1. Check up a safety lock of the corresponding electric motor. If necessary replace it.

Electric motors стеклоподъемников and a drive сдвижной roof panels have the safety automatic machine which is switched off at an overload and after a while joins again. Before repeated inclusion of the device it is necessary to eliminate the overload reason. The icing of glass or pollution directing glasses can be the reasons.

2. If the safety lock fuses at once, there is a short circuit.
3. To find out, whether the electric motor is damaged, attach to it two cables from the storage battery. A positive cable of the battery to positive contact of the electric motor, negative accordingly to the negative.
Polarity can be defined under the electric scheme. There can be a necessity for electric motor removal. Pressure of a food of all electric motors on the car 12—14 V.Esli after removal the electric motor works, malfunction was in a food.

The reason of decrease in angular speed of the electric motor or its work with faults deterioration of brushes can be. In this case it is necessary to replace brushes.

4. Check up work of the electric motor by means of the electroscheme. Check up connection, a food wire.
5. Check up a control lamp pressure presence on a current carrying cable of the electric motor. The electric motor has the big consumed current. Therefore it is possible to apply a usual lamp to check накаливания. Such control lamp has usual tips with which it is possible to pierce a connecting cable. Thus it is possible to check up pressure presence simply enough.

Connecting plugs of the electric motor have following designations:
The plug 32 — weight connection
The plug 33 — positive contact

Reversive electric motors, for example элктродвигатели стеклоподъемников, have two positive joinings. Here there are following designations:
The plug 33L — connection of the left rotation
The plug 33 R — connection of the right rotation

The screen wiper electric motor has a special designation of contacts, the corresponding Section see.

6. If pressure on the electric motor is not present, the reason can be in a food wire. It is necessary to check up a food wire under the scheme. In a consequence of the big current electric motors have, as a rule, the additional relay of inclusion, the corresponding Section see
7. If malfunction has not been found, check up the switch.
8. If any cable it makes sense to replace it is damaged.