Model With Longitudinally Installed Engine
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Tread variance for models with a longitudinally installed engine, such as A4, A5, A6, A7, A8, Q5, Q7...
The variance between the front and rear axle in this case may not be more then 2 mm
NOTE:
The technical background of the limitations are thermal pressure for the transmission oil due to a large difference in the rolling circumference of the tires.
- For all four wheels use only tires of the same construction type and tread.
- Always use tires with the deepest tread depth on the front axle.
- It is possible to change tires individually. However, Audi recommends changing tires on both sides.
- With sport differential on the rear axle, Audi recommends always replacing the tires on both sides of the rear axle.
| Left tire on the front axle | Right tire on the front axle | Average | Variance |
| 3.0 mm | 3.0 mm | 3.0 mm from left to right | |
| Left tire on the rear axle | Right tire on the rear axle | ||
| 3.0 mm | 7.0 mm (new tires) | 5.0 mm from left to right | 2.0 mm from front to rear |
| Within the permissible tolerance | |||
| Left tire on the front axle | Right tire on the front axle | Average | Variance |
| 2.0 mm | 2.0 mm | 2.0 mm from left to right | |
| Left tire on the rear axle | Right tire on the rear axle | ||
| 4.0 mm | 4.0 mm | 4.0 mm from left to right | 2.0 mm from front to rear |
| Within the permissible tolerance | |||
Refer to GENERAL INFORMATION .