BMW 7_aya the E38 series from 1994 to 2002
1. Introduction
2. Governing bodies and methods of operation
2.1. Access, protection
2.2. Elements of security systems
2.2.1. General information
2.2.2. Seat belts
2.2.3. Transportation of children
2.2.4. Adjustment of seats and head restraints
2.2.5. System of additional safety (SRS)
2.3. Car equipment, arrangement of devices and governing bodies
2.4. Devices of ensuring comfort
2.5. Methods of operation and auxiliary systems
3. Settings and routine maintenance of the car
4. Engine
5. Cooling systems of the engine, heating, ventilation and air conditioning
6. A power supply system and production of the fulfilled gases
7. Systems of electric equipment of the engine
8. Manual box of gear shifting and coupling
9. Automatic transmission
10. Cardan and power shafts, reducer, differential and stupichny assemblies
11. Brake system
12. Suspension bracket and steering
13. Body
14. Onboard electric equipment
15. Schemes of electric equipment



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2.2.5. System of additional safety (SRS)

Have no firm or sharp objects between the body and safety cushions, you do not transport firm or sharp objects on a lap and you do not smoke a pipe when driving since it can lead to receiving heavy to injuries at accident. For the purpose of prevention of risk of unauthorized operation of safety cushions try not to press hands to the locations of pillows and their modules. The locations of safety cushions are noted by the inscriptions "AIRBAG".

Enter number of devices and components of system of additional safety (SRS):

  • Two forward safety cushions, and also (at the corresponding complete set) side safety cushions and side curtains. The module of a forward driver's safety cushion is placed in a nave of a steering wheel; safety cushion of the forward passenger is placed in a special cavity in the right part of the dashboard of the car, over a ware box. Side safety cushions are placed in panels of finishing of doors. Side curtains are located under a ceiling upholstery over apertures of doors;
  • The sensors of the directed overloads working at strong front or side blows (at a car complete set side safety cushions and curtains);
  • Electronic system of self-diagnostics which at the included ignition provides continuous testing of sensors of overloads, control unit, gas generators of pillows, pyros of emergency natyazhitel of seat belts and a connecting electrical wiring of the corresponding chains;
  • The automatic emergency natyazhitel of seat belts who are built in in returnable devices of seat belts of front seats;
  • Control lamp of SRS in a combination of devices.

Arrangement of safety cushions

1 — Lobbies
2 — Side
3 — Side curtains

Safety cushions in a back part of salon can be disconnected – address the representative of the BMW company.

Principle of functioning of safety cushions

At weak frontal and side crashes, and also when capsizing the car of a safety cushion should not work.

Sensors of the directed overloads react to excess of some extreme value which can arise at strong head-on or side crash. On a signal of sensors the control unit includes gas generators of safety cushions, causing their instant filling.

During collision the seat belt holds the lower part of the trunk sitting from shift. Forward safety cushions help to prevent traumatizing the driver and forward passenger as a result of blow by their head and a thorax about a steering wheel/dashboard or heading about racks of body/glass of doors.

Both forward safety cushions work at the same time. However the probability of operation of only one of couple of pillows is not excluded, – it becomes possible when the size of the directed overloads which arose at collision was on the verge of the range of sensitivity of sensors. In this case seat belts provide rather reliable protection of the driver and forward passenger while the effect of operation of a safety cushion is minimum. The side safety cushion and an inflatable curtain work only from blow.

Right after operation and performance by pillows of the functions gas from them is produced that allows the driver to keep visibility and to manipulate freely all governing bodies of the car.

The full duration of process takes with sensors of overloads before production of gas from pillows no more tenth fraction of a second the moment of giving of a signal. Operation of modules happens so quickly that the human ear simply is not capable to apprehend cotton of gas generators when filling pillows.

After operation of safety cushions the volume of interior of the car can look slightly smoke-filled because of a suspension of fine powder which usually pours the put covers of pillows. People with a disease of respiratory organs can feel a certain discomfort from the gaseous products which are contained in air allocated by gas generators of pillows.

Control lamp of SRS

The Control Lamp (CL) of SRS is built in in a combination of devices of the car (see the Part the car Equipment, an arrangement of devices and governing bodies).

At inclusion of ignition To/L quickly lights up and then dies away, confirming serviceability of functioning of all knots of the SRS system.

If the lamp does not join, does not die away, blinks, or randomly works at any other moment, follows the owner of the car at the first opportunity to address experts HUNDRED since at the listed above signs the SRS system can refuse during accident.

Seat belts with automatic emergency natyazhitel

Emergency automatic natyazhitel equipped returnable devices of seat belts of front seats. Are put by Natyazhiteli in action at the strong frontal overloads (along with forward safety cushions) arising at head-on collision and provide instant selection of a weak point of belts therefore tapes of the last densely cover a body sitting, substantially increasing degree of protection of the driver and forward passenger.

Operation of modules is followed by loud cotton and small emission of smoke.

The smoke which is emitted at operation of natyazhitel is safe for health of the person, however at direct inhalation can cause irritation of mucous membranes.

The order of use of such seat belts is similar to an order of use of the usual belts equipped with inertial returnable devices. The mechanism of a natyazhitel does not demand any additional skills and knowledge from the user.

As well as in case of safety cushions, modules of emergency natyazhitel are calculated on single operation and after that are subject to replacement assembled with belts, – address on HUNDRED.


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2.3. Car equipment, arrangement of devices and governing bodies