Audi 100/A6

1990-1997 of release

Repair and car operation

1.27. The onboard computer

THE GENERAL DATA

The switch of functions (marksman) and dump key ("Reset") are mounted in the handle of management by screen wipers.

If ignition by repeated pressing the bottom party of the switch of functions they are consistently deduced on indication is included. The conclusion of functions to indication is carried out by pressing the top party of the switch in return sequence.

Pressing and deduction of the button of dump during a minimum of 2 seconds it is possible to establish the values of the absolute and average expense of fuel saved up in memory, time of movement and average speed on zero. It is possible to interrupt with short-term pressing of a key the alarm computer indication warning about excess of norm of time of a continuous finding at the wheel and necessities of refuelling.

At ignition inclusion on indication last is deduced at the moment of deenergizing of ignition function. At a detachment of plugs of the accumulator all saved up values are erased.

The display

The onboard computer gives out the information of 6 kinds:

  – The fuel expense at present or pressure of pressurisation of car Audi S6 Avant (169 kw);
  – A course stock on fuel;
  – The absolute expense of fuel;
  – Time of a continuous finding at the wheel (макс. Indication 23:59);
  – The average expense of fuel;
  – Average speed of movement.

Indicators of the expense of fuel, course stock on fuel and are displayed speed in metric, and in certain export variants in English system of units (km l/100 – mpg, km/h – mph, km – mi).

To define, what of functions is included, it is possible on a triangle specifying in the corresponding symbol top or the bottom edge of the display. On an illustration as an example indication of a stock of a course on fuel is shown.

L/100 Km

The fuel expense at present

On indication values of the expense of fuel at present, km measured in l/100 are deduced.

The expense is calculated on each 30-metre site of a way. During a car stop indication of last of the calculated values remains. If after engine start-up indication of the expense of fuel at present on the first 30–40 metres of a way on indication the average expense of fuel is deduced is caused. If at the working engine to manipulate an accelerator pedal, without getting under way from a place indications of the expense of fuel can be very high. By means of the given indication it is possible to choose the mode of movement corresponding to the optimum expense of fuel.

bar	Pressure of pressurisation

On indication absolute pressure in an inlet gas pipeline of the engine is deduced. An indication range on the display – from 0 to 2,5 bar.

After ignition inclusion at the idle engine indication corresponds to actual atmospheric (barometric) pressure that means at a finding on a sea level nearby 1,0 bar. After start-up of the engine of the indication decrease owing to разряжения in an inlet gas pipeline. At movement indication varies in limits from 1 to 2 bar, in dependence and, along with another, from position of a pedal of an accelerator. If under influence турбонагнетателя pressure increases in an inlet gas pipeline so that exceeds atmospheric in this case speak and "pressure of pressurisation".

At full loading pressure of pressurisation depends on turns of the engine, temperature наддувочного air, atmospheric pressure (height) and quality of fuel. Engine electronics continuously results in optimum conformity pressure of pressurisation with power setting. Therefore at movement considerable fluctuations of indications of pressure of pressurisation are possible.

In case of excess of as much as possible admissible pressure of pressurisation at completely open throttle заслонке (owing to malfunctions of system), the monitor of Motronik for safety will disconnect клапанные atomizers and will stop thereby giving of fuel before decrease to norm of pressure of pressurisation.

In this case, avoiding excess of admissible pressure of pressurisation by circumspect pressing an accelerator pedal, it is possible to go on enterprise Audi for the purpose of an establishment of the reason of supernormal increase in pressure.

Course stock on fuel

The course stock on fuel is defined by the discrete values counted by steps on 10 km. The given indication shows, how many kilometres the car still can pass on the actual rest of fuel in the given mode of movement. The expense of fuel on the last is accepted to a basis of calculations of a stock of a course of 30 km of a way. At more economic subsequent movement the course stock increases.

Reminder on necessity of refuelling

At a stock of a course less than 50 km occur automatic switching on indication of this parametre. Indication starts to blink. When the fuel rest in a tank reaches to 5–8 l, instead of value of a stock of a course on the display there is a letter "L", meaning that the tank is empty.

Alarm indication can be switched off short-term pressing the top or bottom party of the switch of functions, or button "Reset". While the car will not be filled, alarm indication will appear at each inclusion of ignition.

The absolute expense of fuel

On indication the quantity of the engine of fuel spent after start-up is deduced. Value of the expense is erased from memory after repeated inclusion of ignition and the subsequent 30 m of movement. Besides, the given value can be erased button "Reset" pressing.

Time in a way

On indication time in a way is deduced from the moment of last dump of the data of memory. At the included ignition value of time in a way remains in memory. At movement continuation to it the subsequent readout of time is added.

The limit of indications of time in a way makes 23 hours and 59 minutes.

At desire to reckon time in a way since the certain moment clear memory button "Reset" pressing.

Reminder on necessity of a break in movement

In two hours after a start of motion, irrespective of the programmed function, there is an automatic switching on time indication in a way. Blinking indication of a kind "2:0" reminds the driver of necessity to make a break in movement. Short-term pressing the top or bottom party of the switch of functions, or button "Reset" the given indication can be switched off. If ignition remains included or if the break makes less than 10 minutes in each next two hours the reminder on necessity will stop on rest to repeat, with time indication in a kind way "4:0", "6:0" etc.

At duration of a break more than 10 minutes occur to the switched off ignition dump of the data of readout of time in a way.

The average expense of fuel

On indication the average expense of fuel is deduced from the moment of last dump of memory. Not to confuse it to the instant expense at the moment of reading of indications.

At the switched off ignition value of the average expense of fuel remains in memory. At movement continuation the data of the subsequent expense is considered.

For memory deleting to press a key "Reset". At journey of the first 30 m after dump on indication zero value is deduced.

Average speed of movement

On indication average speed of movement is deduced from the moment of last dump of memory. At the switched off ignition the given size remains in memory. At movement continuation indicators of the subsequent run are considered.

For dump of the data of memory to press a key "Reset".