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
+ Brakes
- Wheels and tyres
   Designations of tyres
   Rims
   Wide-profile tyres and rims
   Pressure check in tyres
   Check of a condition of tyres
   Replacement of wheels
   Check of durability of fastening of wheel bolts
   Unbalanced wheels
   Purchase of new tyres
+ The electrotechnical equipment
+ Ignition system
+ Illumination
+ The alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics



Check of a condition of tyres

 PERFORMANCE ORDER

  1. Once completely turn each wheel.
  2. Alien bodies, for example, small stones, take out a narrow screw-driver, trying thus will not damage a profile of tyres.
  3. The tyre profile according to the law of 1992 should be depth a minimum of 1,6 mm on all width of a protector.
  4. But for the sake of safety it is necessary to change tyres at achievement of deterioration of residual width of a profile of 3 mm as wide-profile tyres Audi A4 on wet road emerge earlier, than narrow tyres of cars of old models.
  5. For deterioration check the eminences which are passing on identical distances across a working surface in grooves of a profile serve. They are designated on sides of tyres by letters «TWI» (Tread Wear Indicator – an indicator of deterioration of the tyre).
  6. If these cambers are at one height with protector drawing at the tyre residual depth of 1,6 mm – it is necessary to change tyres urgently.
  7. On character of deterioration of a profile it is possible to draw some conclusions about which it is written in following section.

Protector picture

 PERFORMANCE ORDER

  1. The forward tyres erased on an outer side, are not something unusual for Audi. The reason consists in the raised loading on this site of a protector during turn.
  2. The profile erased on the one hand can specify in wrong balancing of wheels; especially when one tyre is erased obliquely.
  3. Strong deleting of the middle of a profile can be also a sign too a high pressure. This effect is shown especially strongly on back wheels. Or it arises at too fast driving at which the protector surface is approximated.
  4. If both external shoulders of one tyre are erased more strongly, than the profile middle it means that the car long time moved with too low pressure in tyres.
  5. Uniform washing away in a profile specify in the defective shock-absorber.
  6. If appears non-uniform истирание in certain places it means that a wheel the tyre cover is unbalanced or damaged.

 Council: If it is necessary to remove a serviceable wheel, for example, for brake check in the beginning it is necessary to note position of a wheel concerning a nave. Otherwise after installation balancing will be broken. Further it is necessary to pay attention to that the brake disk did not rotate on a wheel nave.