Audi A4

since 1994 release

Repair and operation of the car


A4 Audi
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ System of an exhaust
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and channels of absorption
+ System of injection
+ Coupling
- Transmission and main transfer
   Mechanical transmission
   Noise in a transmission
   Automatic transmission
   Electronic control by a transmission
   Main transfer
   Power shafts
   Check of cuffs of power shafts
   The help at malfunctions
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ System of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics



Main transfer

The transmission and the main transfer – almost like and in all cars with the forward drive – settle down in Audi A4 in the general case. Sil, transferred from the engine to a transmission, arrives on the main transfer through one small and one big gear wheel. On a big gear wheel the case of a synchronized transmission is screwed. In this case there are conic gear wheels linked with each other, two of them are connected to power shafts.

While we go on a straight line, both forward wheels slide with a frequency of rotation of a big gear wheel of the main transfer. Conic gear wheels of the case of the synchronized transmission which is also rotating with the same speed are in rest. On turn the wheel, external in relation to it, passes longer piece of a way, than an internal wheel. Now conic gear wheels become more active: the accelerated rotation of an external wheel and its conic gear wheel through both conic gear wheels of transfer influences that conic gear wheel on the party, internal in relation to turn, which rotates respectively more slowly.