Audi A4

Since 1994 of release

Repair and car operation

Audi А4
+ Running gear
+ 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
   Running gear
   Check of cuffs of the steering mechanism
   Check of dustproof caps and backlash in heads of cross-section steering draught
   Check of dustproof caps of hinges of an axis
   Check люфта a steering wheel
   Check клинового a belt
   Check of level of oil
   Check of a backlash of the wheel bearing
   Check of shock-absorbers
   The help at malfunctions
   Adjustment of wheels
   Measurement of adjustment of wheels
   The help at malfunctions
   Independent works on a running gear and a steering
   Dismantling of a suspension bracket of forward wheels
   Works with the back bridge
   Shock-absorber replacement behind
   Works on a steering
   Tightness check сервоуправления
   Poliklinovoj belt
   The help at malfunctions
   Adjustment of the steering mechanism
   Pump dismantle сервоуправления
   Filling and system prorolling сервоуправления
   Safety pillow
   Safety instructions
+ 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

Adjustment of wheels

That you could imagine is better the concepts connected with adjustment of wheels, we have represented it in drawing. At the left the convergence, in the middle negative disorder is explained, and on the right you see the image of a longitudinal inclination шкворня.


Forward wheels to provide reliable behaviour of the car, should settle down under a certain corner in a lateral and longitudinal direction. That you have got some idea about concept steering geometry, the explanatory of concepts here is resulted:

Width of a track: in Audi A4 forward wheels are at rest shown a little more than the back. Thus say that the width of a track "positive" or at the car is a convergence of wheels. The friction between a wheel and road wrings out the left wheel to the left, and right to the right. It is somewhat levelled by forces of a forward drive which aspire to pull together forward wheels. At turn of the car the convergence of forward wheels passes in "divergence". It becomes at the expense of a trapezoid arrangement of steering draughts: internal in relation to turn the wheel is developed more strongly, than external. It also is necessary, as on turn internal wheels describe a smaller circle, than external.

Disorder: so the easy inclination of forward wheels to an outer side – above in wheel niche Audi A4 between them smaller distance, than below at the earth is called. In language of professionals it is called as "negative" disorder.

Cross-section inclination: it concerns disorder. The cross-section inclination represents an insignificant inclination of an axis round which by car at management wheels together with a suspension bracket turn. Both cross-section axes have above smaller distance, than below.

Longitudinal inclination: as it understand an inclined arrangement of rotary axes in a longitudinal direction of the car. It also promotes stabilisation of rectilinear movement and does not suppose fluctuation of forward wheels.