Audi A4

Since 1994 of release

Repair and car operation

At special desire on Audi А4 the so-called system of the automatic control of the car is put. This system supervises eight functions and working conditions after inclusion of ignition and dimensional lanterns or stoplight fires. And also carries out the control during movement. Thanks to it the system of the autocontrol of the car replaces with itself certain quantity of the traditional control bulbs which are available at a standard complete set.

The indicator of the malfunctions, which light field is in the middle of the combined device, is divided into groups danger indication and precautionary indication.

Defects which reduce level of safety of the car or can lead to damages, are considered as indication of danger and light up red light in a display field. In addition the sound signal of the combined device three times sounds. It:

• Brake system: too low level of a brake liquid.
• Pressure of oil of the engine: pressure of oil in the engine too low. Measuring methods, as at the traditional control of pressure of oil (it is described above).
• Cooling liquid: the temperature of a cooling liquid above 120 С, or is not reached working temperature, or level of a cooling liquid too low.
• Precautionary indication of yellow colour appears in a light field in a combination to a single sound signal. It:
• Stoplight fires: this symbol appears right after ignition inclusions. When the brake pedal the symbol dies away is pressed – provided that both fires of a stoplight function.
• Illumination: the monitoring system cannot spend this check in an automatic mode. For the control the driver should include passing light headlights preliminary. Headlights of a passing light and back lanterns are simultaneously checked. накаливания headlights of a passing light or back lanterns the system owing to the design cannot show simultaneous failure of both lamps. Though it is improbable defect.
• The accumulator: the accumulator symbol lights up in the event that pressure of the accumulator is not in limits nominal sizes from 10,6 to 15,6 Century
• System of washing of glasses: this indication specifies in too low level of a liquid in a tank for washing of glasses.
• Fuel tank: the symbol of petrol filling station flashes in the event that in a fuel tank there were 12 l of gasoline. If in the field of precautionary indication there are some defects symbols light up serially while ignition is included.
• Indication ОК should appear when after inclusion of ignition and after pressing a brake pedal the inscription Bremslicht – stoplight fires dies away. ОК means that all points are checked up without signal reception about defect presence. Through short time the light symbol disappears.

How check is carried out?

For carrying out of the work the car monitoring system receives in the beginning the information on an operational condition of the engine. This information arrives from the block of management of ignition/injection (the information on number of turns of the engine), from the plug 50 starters (the engine is started) and from the plug 61 generators (the engine works).

Absolutely in another way positions of the control of illumination of the car function. These devices of the control of bulbs work on an electromagnetic basis and compare a current stream in wires, for example, to right and to left to passing light headlights. If as a result of malfunction in one wire or defect of a lamp in general is not present a current the control device establishes distinction and sends a signal to the management block. Certainly, distinction is absent and in the event that there is really extremely a rare occurence when both lamps are faulty. Against it the control device is powerless.

Check of the monitoring system of the car by own forces is possible only partially: in the beginning all gauges if there defect has not been found, a cause of defect in the monitoring system of the car are checked.

Search of malfunctions in the car monitoring system

Self-checking of the display module

Additional functions on a display field of the monitoring system of the car

The prevention of speed: after storing of speed of movement at present the car monitoring system informs by occurrence of a symbol and a sound signal if this speed is essentially exceeded. This information remains in memory until ignition if in memory other speed is not put will be switched off or the existing information is erased (to hold pressed the button at the left nearby 1 with.). Storing of two speeds is possible.

The radio frequency indicator: if the display field is not occupied by the information arriving from the monitoring system of the car on it the established radio frequency is shown at corresponding equipment of radio receiver Audi. In addition display field informs on stereoreception or the put audiocassette (path). In the presence of radio stations with signals of system of the radio data on the indicator appears RDS.

Instructions to the driver: at a blinking of the precautionary indicator it is possible to receive from the display of the instruction what to do at present. Press for this purpose the button at the left below near to the display of the monitoring system of the car then there is a written message: after a signal about insufficient level of oil the text Motor abstellen follows, for example, olstand prufen – Switch off the engine, check up oil level.