Audi 80/Avant (B4)

Since 1991-1995 of release

Repair and car operation

Audi 80/Avant
- The description
   The chassis
   15-inch wheels
   Brake system
   Passive safety
   Full drive
   Distributive Torsen-differential
   Dynamics of movement at a dry road covering
   Instructions on operation for all-wheel drive cars
   Blocking of differential of the back bridge
   Motor compartment
   Regular servicing
   The workplace organisation
   Lubricant works
   The oil expense
   Correct choice of engine oil
   Replacement of engine oil and the oil filter
   Check of level of a 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
   The control of level ATF in an automatic transmission
   Check of level of oil in the main transfer of an automatic transmission
   Replacement ATF
   Greasing тросовых drives, hinges and locks
+ Engines
+ System of release of the fulfilled gases
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and воздухозаборные channels
+ Injection system
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Antiblocking system of brakes
+ Wheels and tyres
+ Kuzovnaja electrosystem
+ Ignition system
+ Illumination
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ Body elements
+ Search of malfunctions
+ Specifications


Dynamics of movement at a dry road covering

That at bad coupling about expensive Torsen-differential operates correctly and witty, it is already impossible to deny. Therefore here further explanation of that occurs in transmission of all-wheel drive car Audi on dry road is resulted: as it was already mentioned, forward wheels pass on turns longer piece of a way, than back because back wheels spin smaller radius.

Proceeding from it, the Torsen-differential tells to the back bridge (because of its lower frequency of rotation) the big traction force that supports the desirable tendency on an input in turn.

If the driver enters into turn too sharply and thus one of back wheels the differential immediately directs more than traction energies to (during this moment) to "slower" forward wheels revolves. Fast reaction of system leads to that more strongly forward wheels now pull, and it stabilises the car. Effect – dynamic properties in a critical range on turns considerably improve.