General information on auxiliary system of safety (SRS). BMW the 5th E28/E34 series (from 1981 to 1993 of release)
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Repair of BMW E28 and series E34 from 1981 to 1993
1. Cars of the BMW brand of 5-series
2. Engine
3. Cooling system
4. Power supply system
5. Ignition system
6. Control systems of the engine and decrease in toxicity of the fulfilled gases
7. System of production of the fulfilled gases
8. Coupling
9. Manual box of gear shifting (RKPP) and automatic transmission (AT)
10. Transmission line
11. Steering and suspension bracket
12. Brake system
13. Body
14. Control body sizes
15. Heater and air conditioner
16. System of onboard electric equipment
16.1. General information
16.2. The general information on search of malfunctions in electric chains
16.3. Removal and installation of the storage battery
16.4. Check of a condition and replacement of wires of the battery
16.5. General information on safety locks
16.6. General information on the relay
16.7. General information about charge and precautionary measure system at work with it
16.8. Check of system of a charge
16.9. Removal and generator installation
16.10. Replacement of a regulator of tension
16.11. Check and replacement of brushes of the generator
16.12. General information about system of start of the engine and a precautionary measure
16.13. Starter check on the car
16.14. Removal and starter installation
16.15. Removal and installation of the traction relay
16.16. Check and replacement of breakers of indexes of turn and alarm system
16.17. Removal and installation of switches on a steering column
16.18. Removal and installation of the lock of ignition
16.19. Removal and radio receiver installation
16.20. Removal and aerial installation
16.21. Removal and installation of components of an instrument guard
16.22. General information on the panel of alarm lamps of a reminder on term of service (SI)
16.23. Replacement of lamps in head headlights
16.24. Adjustment of a beam of head headlights
16.25. Removal and installation of the case of a head headlight
16.26. Replacement of lamps
16.27. Removal and installation of the motor of a screen wiper of windscreen / glass of a door of a back
16.28. Check of work and repair of a heater of back glass
16.29. General information on auxiliary system of safety (SRS)
16.30. Description and check of work of a control system by speed (темпостата)
16.31. Description and check of work of system of the central blocking of doors
16.32. Description and check of work of system of electric window regulators
16.33. Diagnostics of malfunctions of a suspension bracket of back wheels
17. Routine maintenance of the car
18. Size table and adjusting data
19. Schematic electric circuits
20. Governing bodies and operation receptions
21. System of onboard diagnostics - a principle of functioning and codes of malfunctions
 








16-29-obshhaya-informaciya-o-vspomogatelnojj-sisteme-bezopasnosti-srs.html

16.29. General information on auxiliary system of safety (SRS)

Latest models are equipped with auxiliary system of the safety (SRS) including a pneumosafety cushion. This system is developed to protect the driver from serious traumas in case of a head-on collision. The system consists of the pneumopillow module in the center of the steering wheel, two sensors of blow mounted on panels of forward wings from the inside, and the sensor of safety which is in a passenger compartment. Sensors of blow of SRS system (it is specified by an arrow) are located in an impellent compartment - regularly check, whether there are no conducting damages.

The module of a pneumosafety cushion includes a casing for a pillow and pump blocks for pillow inflating. Assembly of the pump is mounted in a back part of a casing over an opening through which gas arrives, inflating a pillow almost instantly after the system sends an electric signal. This signal is transferred on a wire which is specially braided several times that the signal was transferred irrespective of the provision of a steering wheel.

The SRS system has three sensors: two in front, established on panels of wings from the inside, and the sensor of safety located in a passenger compartment. Blow sensors usually react to pressure, closing an electric chain during blow of sufficient force. The electric signal from sensors of blow is sent to the third sensor which then closes a chain and inflates a pneumopillow.

The module containing the sensor of safety, watches system work. It checks system work each time at ignition inclusion, forcing to be lit by an alarm lamp AIRBAG (pneumopillow), and then being switched off, if the system works normally. If the system is faulty, the alarm lamp remains included. If the lamp of AIRBAG remains included or if it is lit in car operating time, immediately send your car in dealer office of service.


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16.28. Check of work and repair of a heater of back glass
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16.30. Description and check of work of a control system by speed (темпостата)