Audi Q3: Tire Requirement and Maintenance
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This revised information should supplement the knowledge and
experience you already have.
With this information, we want to help you make as clear and
certain a statement as possible concerning t
A - Wet braking behavior
B - Comfort
C - Steering precision
D - Driving stability
E - Tire weight
F - Service life expectancy
G 
Tread Depth, Measuring
Note
When measuring tread depth, take measurements in the main
grooves.
Do not measure on the TWI (tread wear indicator).
Tread depth of a tire must be meas
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Preparation
You must complete the preparation before
changing a tire.
Read and follow the important safety precautions.
Set the parking brake.
Select the "P" position.
When towing a trailer: disconnect the trailer
from your vehicle.
Lay out the vehicle tool kit and the
spare tire.
Switch th
Check valve is removed, refer to
→ Chapter "Check Valve, Removing and Installing".
Note
The check valve is installed directly in front of the vacuum
pump.
Valve must allow air to flow in direction of arrow.
Valve must remain closed in opposite direction.