Audi A4

since 1994 of release

Repair and car operation



A4 Audi
- Running gear
   Protection of passengers
   Full zinc covering
   Full drive
   Drive concepts on all wheels
   Distributive torsen-differential
   Dynamics of movement on the dry road
   Maintenance instructions of quattro cars
   Mechanism of blocking of differential
   Additional works on maintenance
   Impellent compartment
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ exhaust System
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and absorption channels
+ injection System
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ ignition System
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics





Mechanism of blocking of differential

If the previous Audi 80 model was still supplied with mechanical blocking of a back axis, in А4 blocking is carried out by EDS system. Its advantage consists that blocking affects also forward wheels, but there is a shortcoming which is that the effect of blocking is reached only at the expense of braking of being turned wheel that under certain conditions operation is less effective, than at mechanical blocking.

The EDS system is closely connected with anti-blocking system therefore technical information on EDS read in the section ABS and EDS.