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
   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

Designations of tyres

Under operating international agreements the size of tyres is resulted in millimetres or, as in our case, in millimetres and in inches. Designations 195/65 R 15 91 H or 205/60 R 15 90 V mean the following:

195 or 205: width of tyres in not loaded condition in mm.

65, 60, 55: a parity of height of tyres and their width = 65: 100, 60: 100 or 55: 100. Old radial tyres which are not put any more on Audi A4, have a parity of height of tyres and their width 80: 100. Accordingly more low a parity of height and width in tyres with a designation 65, 60 and 55.

  1. макс. Loading
  2. внутр. Pressure
  3. Layers
  4. Lateral wall
  5. Protector
  6. Check DOT*
  7. Code of the manufacturer
  8. Code of the size of the tyre
  9. Code of type of the tyre (on a choice, intrafactory)
  10. Week of manufacturing
  11. Year
  12. The radial
  13. бескамерная
  14. Nominal width
  15. Parity of cross-section section
  16. The radial
  17. Diameter of a rim
  18. Index of loading or the characteristic
  19. Index of speed
  20. Quality symbol ECE* (a sign on the admission with a country code, for example, 3 – Italy)
  21. Admission number

* DOT – transport Department
* ECE – ЕЭК – the European economic commission

All symbols which you will find on a tyre lateral face, are explained here.

R: a designation of a design of the tyre as radial.
15: internal diameter of the tyre in inches (”).
90 or 91: a designation of bearing ability.
Q: admissible maximum speed to 160 km/h – a class of speed for usual tyres M + S.
S: the maximum speed to 180 km/h.
T: the maximum speed to 190 km/h – the maximum speed for tyres M + S.
Н: to 210 km/h.
V: to 240 km/h.
W: to 270 km/h.
Z: over 270 km/h.