Audi 80/Avant (B4)

since 1991-1995 release

Repair and operation of the car

Audi 80/Avant
- Technical specification
   15-inch wheels
   Brake system
   Passive safety
   Four-wheel drive
   Distributive Torsen-differential
   Dynamics of the movement at a dry paving
   Instructions on operation for all-wheel drive cars
   Blocking of differential of the back bridge
   Motor compartment
   Regular servicing
   Organization of a workplace
   Lubricant works
   Oil consumption
   Right choice of engine oil
   Replacement of engine oil and oil filter
   Check of level of working liquid of the power steering
   Check of level of oil of the mechanical transmission
   Check of level of oil in the drive of the back bridge
   Control of the ATF level in the automatic transmission
   Check of level of oil in the main transfer of the automatic transmission
   ATF replacement
   Lubricant 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
+ System of injection
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Anti-blocking system of brakes
+ Wheels and tires
+ Body electrical system
+ System of ignition
+ Lighting
+ Signaling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ Body elements
+ Search of malfunctions
+ Specifications

Dynamics of the movement at a dry paving

What at bad coupling about expensive Torsen-differential works correctly and witty cannot already be denied. Therefore here further explanation of what happens in transmission of the all-wheel drive Audi car on the dry road is given: 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 transfers to the back bridge (because of its lower frequency of rotation) big traction force that supports a desirable tendency on an entrance to turn.

If the driver enters turn too sharply and at the same time one of back wheels revolves, then the differential immediately directs more traction force to (at this moment) to "slower" forward wheels. Bystry reaction of system leads to the fact that now pull stronger forward wheels, and it stabilizes the car. Effect – dynamic properties in the critical range on turns considerably improve.