Volkswagen Polo Service & Repair Manual: Permitted Tread Depth - Variance
| 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. |
| Replacing one individual tire is always possible. The
vehicle manufacturer recommends at the very least however that
the tires are replaced on both sides of the axle. |
| With sport differential on the rear axle, the vehicle
manufacturer recommends always replacing the tires on both sides
of the rear axle. |
 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. |
| The Difference Between the Front and Rear Axle, must Not be
Greater Than 3 mm. |
|
|
|
| Front axle left tire
tread depth |
Front axle right tire
tread depth |
Average front axle tread
depth |
Difference of the front
axle to the rear axle |
| 2.0 mm |
2.0 mm |
2.0 mm from left to right
|
3.0 mm |
| Rear axle left tire tread
depth |
Rear axle right tire
tread depth |
Average rear axle tread
depth |
Within the permissible
tolerance |
| 3.0 mm |
7.0 mm (new tire) |
5.0 mm from left to right |
|
This wear pattern is found on drive wheels on high-powered
vehicles that often drive long stretches at high speed.
At high speeds, the centrifugal fo ...
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