Audi A4

Since 1994 of release

Repair and car operation

Audi А4
- Running gear
   Protection of passengers
   Full zinc covering
   Full drive
   Drive concepts on all wheels
   Distributive torsen-differential
   Dynamics of movement on dry road
   Maintenance instructions of cars quattro
   The mechanism of blocking of differential
   Additional works on maintenance service
   Impellent compartment
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ Exhaust system
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and channels всасывания
+ Injection system
+ Coupling
+ Transmission and the main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tyres
+ The electrotechnical equipment
+ Ignition system
+ Illumination
+ The alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics

Maintenance instructions of cars quattro

The stand for test of brakes


  1. Check of brakes on each axis can be spent at the standard, slowly rotating stand for test of brakes (a move. 6 km/h).
  2. Thus the drive should be from the test bed.
  3. It is impossible to include transfer and differential blocking.

The stand for capacity check


  1. Capacity check at the traditional roller stand for two wheels is impossible.
  2. The roller test bed of capacity for four wheels should be used.



  1. All four wheels should pass an identical site of a way (in an ideal to have also identical depth of a profile) for 1 turn.
  2. Balancing of wheels on the car (dynamic balancing) it is possible only in the event that all four wheels are raised.
  3. The drive should be carried out from the car engine (not from the balancing car). Important: switch off a manual brake.

Winter tyres


  1. Winter tyres are recommended to be used also on cars quattro. It is Not so much because of road performance, how many because of brake characteristics.
  2. Chains противоскольжения can be used when it is offered, also on cars quattro. Here too argument are brake qualities
  3. Chains противоскольжения and on quattro are put only on forward wheels.



  1. If at towage all four wheels slide on a ground it is not necessary to observe any special instructions.
  2. If one of axes cannot slide (after failure) the car needs to be shipped on эвакуатор.
  3. If is not present such эвакуатора Audi it is possible to tow with the raised axis. A condition: not further, than on 50 km, and not faster, than 50 km/h. In case of excess of this limit damages of system of transfer because of a greasing lack are possible.