BMW 3 series E46

Since 1998 of release

Repair and car operation


The BMW of 3 series Е46
+ Cars BMW 3 (Е46)
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ Power supply systems, injection and release
+ Engine electric equipment
+ Manual transmission and transmission a line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   - Дигностика electric elements
      Diagnostics of malfunctions of an onboard electric equipment - the general information
      Safety locks - the general information
      Replacement of safety locks
      Fusible inserts - the general information
      Chain breakers (thermal relays) - the general information
      The relay - the general information
      Check of the electric motor of a screen wiper
      Stoplight check
      Check of warmed back glass
      Removal and installation of the gauge of temperature
   + Illumination and the alarm system
   + Devices and the equipment
+ Electric equipment schemes


Replacement of safety locks

For protection of wires and consumers of electric devices and an overload electric chains are protected from short circuit by safety locks.

Safety locks settle down in the separate block of safety locks which are over a ware box.

1 Before safety lock replacement it is necessary to switch off preliminary necessarily the corresponding consumer.

2 Open a ware box and turn both white clips (arrows on an illustration) outside. Downwards the block of safety locks Thus is released and comes off. The scheme of an arrangement of safety locks is under a payment of safety locks.

3 Sign of the failed safety lock is the fused metal strip.

4 Take out the failed safety lock. For simplification of capture of a safety lock in the block there is a plastic clip. Put on a safety lock a clip, compress and take out a safety lock.

5 Insert a new safety lock on the same maximum current. Its value is specified on the plastic case of a safety lock. Besides, the case has colour marks on which also it is possible to define rated current size. And - расплавляемая a wire (address to Specifications).


6 Take away the block of safety locks upwards and fix, for what turn white clips outside.

If the new safety lock through short time again burns down, it is necessary to check up a corresponding chain of a current.

It is recommended to carry always with itself spare safety locks. In no event it is impossible to replace a safety lock with a wire or something similar as it can lead to heavy damages of electric devices.