Audi Q7: Acceptable Tread Depth Variance
Model with Longitudinally Installed Engine
Tread variance for models with a longitudinally installed
engine, such as A4, A5, A6, A7, A8, Q5, Q7, ...
In this case, the variance between the front and rear axle
may not be more than 2 mm
Note
- For all four wheels use only tires of the same construction
type, size, and tread.
- Excepted are vehicles that were shipped by Audi AG with
different sized tires on the front and rear axle.
- Always use tires with the deepest tread depth on the front
axle.
- Changing one individual tire is generally possible. Audi
recommends at the very least however that the tires are
exchanged on both sides of the axle.
- With sport differential on the rear axle, Audi 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.

Models with Crossways Installed Engine
Tread depth variance for models with laterally installed
engine, such as A3, TT, Q3, A1, ...
In this case, the variance between the front and rear axle
may not be more than three mm
Note
- For all four wheels use only tires of the same construction
type, size, and tread.
- Excepted are vehicles that were shipped by Audi AG with
different sized tires on the front and rear axle.
- Always use tires with the deepest tread depth on the front
axle.
- Changing one individual tire is generally possible. Audi
recommends at the very least however that the tires are
exchanged on both sides of the axle.
- With sport differential on the rear axle, Audi 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.

READ NEXT:
Tires, Rolling Noises, General Information
Rolling noise perceived by the human ear is caused by
vibrations transmitted from the noise source to the ear via the
air.
Here we are interested in noises
Vibration Causes
There are many causes for vibration. Vibration can also be
caused by tire wear, among other things.
Tire wear caused by driving does not always develop evenly
over the entire tread.
General Information
Before beginning balancing, the following requirements must
be fulfilled.
Tire inflation pressure must be OK.
The tire tread must not be worn down on one side and should
be at
SEE MORE:
Sensor and camera coverage areas
Fig. 96 Sensor coverage area
Fig. 97 Rearview camera coverage area
The assist systems analyze the data from various
sensors and cameras installed in the vehicle. Do
not use any assist systems if there is damage in
there area of the sensors and cameras or on the
v
Note
Depending on vehicle equipment, there are different versions
of the A/C system for the Audi Q7. Make sure to use the correct
version and pay attention to the allocation of different
components. Refer to
→ Chapter "A/C System Versions" and Parts Catalog.
For vehicles with a