BMW 3 of the E46 series
since 1998 release
Repair and operation of the car
BMW 3 of the E46 series
- BMW 3 cars (E46)
Identification numbers of the car
Acquisition of spare parts
Technology of service, tool and equipment of a workplace
Poddomkrachivaniye and towage
Start of the engine from the auxiliary power supply
Checks of readiness of the car for operation
Automobile chemicals, oils and greasings
Diagnostics of malfunctions
Governing bodies and methods of operation
Governing bodies and devices
Keys, uniform lock and anticreeping system
Security alarm system *
The hatch with a lifting and movable cover *
Adjustment of provision of a steering wheel
Systems of safety
Lock of ignition and start of the engine
Manual Box of Gear Shifting (MBGS)
Automatic Transmission (AT) *
Lever of the switch of indexes of turn / light signal
Screen wipers and windscreen washers
Heater of back glass
Tempostat (automatic equipment of maintenance of the set speed) *
The alarm system of emergency rapprochement at a parking (PDC) *
System of automatic stabilization of stability with the ASC+T/engine torque regulator System of dynamic control of stability of DSC *
The air pressure monitoring system in tires (RDC) *
Lighting and light devices
Heater, ventilation and conditioner of air of salon
Equipment of salon
Features of driving of the car
Anti-blocking system of brakes (ABS)
Automobile phone *
Readjustment of headlights
Unlocking of a cover of the filling hatch manually
Drive of a lifting and movable cover of the hatch manually *
+ Current leaving and service
+ Cooling systems, heating
+ Power supply systems, injection and release
+ Electric equipment of the engine
+ RKPP and transmission line
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Onboard electric equipment
+ Schemes of electric equipment
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The air pressure monitoring system in tires (RDC) *Principle of action
The RDC system controls air pressure in tires of all four wheels and during the movement. The system reports about considerable pressure drop in one or several tires.
In each wheel behind the gate there is pressure sensor, the transmitter and the power supply. Through short intervals of time measurement of pressure is performed.
The obtained data are transferred on a radio channel. At pressure deviation from norm frequency of data transmission increases.
Near each wheel in a body there are antennas which accept signals from transmitters. The onboard processor processes the arriving signals and reports about changes to the driver.
In order that the system "understood", what pressure is normal, it is necessary to check pressure in all four wheels, to compare to Specifications and if necessary to bring to norm. Then it is necessary to make active system.
Activization of system
1 Turn a key in situation 2.
2 Hold a key pressed until the control lamp on a control panel does not light up yellow light.
3 In a few minutes after a start of motion the RDC system will remember the actual pressure of air in tires as a reference indicator by which it is necessary to be guided further.
This procedure should be repeated only after pumping of tires. In other cases the RDC system automatically joins after turn of the ignition key in situation 2 and works at each trip.
At pressure drop
If air pressure considerably falls after a while in tires (that in principle represents the normal phenomenon), the control lamp lights up yellow light.
Thereby you are offered to bring as soon as possible pressure in tires of your car to norm.
If after a while after bringing pressure to norm you are again offered to repeat this operation, it means that you incorrectly pumped up tires. Double-check pressure and compare its values to the values given in Specifications.
At a tire puncture
At a tire puncture with loss of pressure the control lamp lights up red light. In addition the sound signal sounds.
In this case immediately reduce speed up to a full stop of the car, avoiding thus sharp braking and sharp movements by a wheel. Replace the punctured wheel.
The compact wheel provided on a tire puncture case * (it can be used only temporarily) does not enter the air pressure monitoring system in tires. The spare wheel * the identical size with other wheels established on the car, on the contrary, is equipped with the necessary electronic means allowing to control onto air pressure in it after installation instead of a defective wheel and activization of RDC system.
The RDC system cannot warn about a sudden rupture of a tire as a result of external influences.
For replacement of tires address on HUNDRED BMWs.
Other systems or devices which use the same radio frequency can negatively affect operability of RDC system.
During emergence of hindrances the control lamp burns with yellow light.
Yellow light of a lamp testifies also:
- about failure in system,
- about installation of a wheel without the corresponding electronics,
- about existence in the car together with a spare wheel * also other wheels with electronics for RDC.
In such cases address on HUNDRED BMWs.