Audi 80/Avant (B4)

since 1991-1995 of release

Repair and car operation

Audi 80/Avant
- Technical specification
   15-inch wheels
   Brake system
   Passive safety
   Full drive
   Distributive Torsen-differential
   Dynamics of movement at a dry paving
   Instructions on operation for all-wheel drive cars
   Blocking of differential of the back bridge
   Motor compartment
   Regular servicing
   Workplace organization
   Lubricant works
   Consumption of oil
   Right choice of engine oil
   Replacement of engine oil and oil filter
   Check of level of working liquid of the amplifier of a wheel
   Check of level of oil of a mechanical transmission
   Check of level of oil in a drive of the back bridge
   Control of level of ATF in an automatic transmission
   Check of level of oil in the main transfer of an automatic transmission
   ATF replacement
   Greasing of hummock drives, hinges and locks
+ Engines
+ System of production of the fulfilled gases
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and airintaking channels
+ injection System
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Anti-blocking system of brakes
+ Wheels and tires
+ Body electrosystem
+ ignition System
+ Lighting
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ body Elements
+ Search of malfunctions
+ Specifications

Regular servicing

Reliability and safety are inconceivable without leaving and servicing. Otherwise it is not necessary to be surprised to problems with the car. Where and when it is necessary «to spread straws», it is written in detailed instructions on the servicing, made Audis.

Maintenance terms

For our Audi 80 the following instructions on servicing operate:

  • Technical inspection with simultaneous check on toxicity of the fulfilled gases – once a year.
  • Technical inspection with additional works each 30 000 and 60 000 passable km.
  • Oil replacement if in a year the car passes more than 15 000 km, thereby exceeding a year interval of checks. For those who runs in a year big run (more than 15 000 km), and for carrying out regular checks uses repair trucks, there can be adverse "crossings". At 20 000 km a year replacement of oil should be carried out already before year check. For this purpose, who passes in a year of 25 000 km, it is better to carry out 30 000-kilometer check after the expiration of a year interval. Well, and those who everything does itself, can solve necessarily as when they want to make.
  • Each two years it is necessary for drivers of Audi to replace brake liquid.

Plan of independent servicing

The plan of servicing considered in this management is based on recommendations of Audi also, and the sequence of separate points was made specially for those who everything likes to do.

Who can perform works?

Warranty service

You can independently execute almost all works on Audi 80 servicing. «The traffic light of the motorist» will specify to you thus the correct way:

  • For the motorist the way is free. You can carry out this work, having armed with knowledge from this management and by that to save money.
  • Work though is not heavy, but in most cases at you near at hand it can not appear the necessary adaptations.
  • Stop, here start up better the workshop works. Special tools or devices are necessary. The quantity of spent time does not justify itself because the workshop works much quicker or for works special, more profound knowledge is necessary.

If your Audi 80 car is younger than one year or engine replacement is made, the manufacturer demands, that works on servicing were carried out in time in one of firm workshops of Audi. Otherwise to you it can be refused support even in reasonable guarantee cases. And the one who wants to enjoy advantages «of a guarantee on mobility», should appear once a year at least in a workshop.

Diagnostics in Audi workshop

Often search of malfunctions is the most expensive, for what it is necessary to pay the bill in a workshop, – especially when it is a question of the phenomena arising only from time to time. Therefore that can be more true than check of «nervous communications» car in such a way immediately to learn about a problem in all its depth?

Work principle

The numerous control units established in Audi, are capable to independent diagnostics. In this row it is possible to call control units injection system, ignition system (models with the 5-cylinder engine), anti-blocking system, EDS (electronic blocking of differential), a safety cushion or the conditioner. The similar control unit in a condition to diagnose, if the store of malfunctions which is writing down all failures at operation of the car is built in it.

The control unit can be connected to diagnostic installation in a workshop a connection way to the central tip for connection of the diagnostic center on the case of the central switching center of the car.

As it occurs

The correct use of possibilities of poll of memory of the store of malfunction should pass so: the driver comes on the Audi to a workshop, and before the beginning of any works the car connect to diagnostic installation. From it unpack the full protocol of malfunctions which contains data of stores of malfunctions of all capable control units to diagnosing.

Testing is carried out by the mechanic according to the program by means of implementation of the corresponding instructions on the display. The end result is exact determination of knots and the units which are subject to repair.

Regulator diagnostics

Determinant of fast and correct repair is also function of diagnostic installation which Audi calls regulator diagnostics. The following thus means: electric functions – such as actuating of the relay of the fuel pump, the electromagnetic valve for a tank with absorbent carbon or the valve of stabilization of frequency of rotation of a shaft of the engine in a mode single a course, can be connected to diagnostic installation.

Thus it is possible to find out definitely absolutely, whether the reason in defective conducting is covered or the block (its functioning which is not muffled by a sound of operation of the engine, is usually well listened) does not function. And it essentially facilitates search of malfunctions.

Poll of the store of malfunctions

At maintenance poll of the store of malfunctions is included into volume of carried-out works. Thus the workshop can receive idea of possible malfunctions in work of electronic knots of the car, and without asking in detail the client.

The one who is engaged in servicing, can refuse at work this point as he watches the car in the course of daily operation – that is he should notice possible malfunctions.

Independent diagnostics

Times when autodrivers as it was with folksvagenovsky "bug", could all works on the car execute, finally left in the past. But it at all does not mean that independent repair of own car is absolutely impossible. Absolutely on the contrary. It is necessary to change slightly only a method of work and to use modern equipment.

So, for example, results of poll of the store of the malfunctions which are carried out by a workshop, it is quite possible to use in work in house conditions. The subsequent example should give to this thought presentation.


  • The 85-strong engine with system of injection of Digifant at full loading finds insufficient capacity. Artfully, it not all the time such weak-willed, but only from time to time
  • As skilled mekhniki-amateur, we already checked the car on the points given in this management in the section the List of malfunctions of system of injection of Digifant.
  • Usually we already for certain found malfunction, but that fact that it appears only from time to time, complicates search.
  • On this example the clear advantage of the store of malfunctions because it keeps and sporadic arising malfunctions is visible.
  • Result of poll of the store of malfunctions: defect of the sensor of angular moving of a butterfly valve (leaky contact).

The store of malfunctions of various monitors interrogate by means of this diagnostic device. Thereby it is possible to carry out a fast appraisal and to diagnose the corresponding control unit and its information sensors. Besides, information containing in the store of malfunctions, it is possible to erase by means of this device.

In the block of safety locks (the central switchboard) there are plug connections (on shooters) to which it is possible to connect the diagnostic V-A-G 1551 device.