Tread Depth, Checking

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2016 Audi S4, 2016 Audi A4 Quattro, 2016 Audi A4, 2015 Audi S4, and 2015 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

For safety reasons, all tires on the vehicle should be of the same make and tread design.

On AWD vehicles, always use tires of the same make and tread design. If not, the center differential can get damaged.

Special tools and workshop equipment required

Test Pin T40139 (Tread Depth Gauge)

Fig 1: Identifying Test Pin
Courtesy of AUDI OF AMERICA, LLC

NOTE:

The scale on the test pin for checking the tread depth has a symbol of a tire.

-- Ascertain the tread depth of all the tires (including spare tires) with a Test Pin T40139 and record in the maintenance table.

Minimum tread depth: 1.6 mm

NOTE:

The minimum tread depth is reached when the tires have worn down level with the 1.6 mm high tread wear indicators -arrows- positioned at intervals around the tire.

Fig 2: Checking Tire Tread Depth

Courtesy of AUDI OF AMERICA, LLC

This value may vary for individual countries due to different legislative regulations.

Inform the customer if the tread depth is nearing the legally permitted minimum tread depth.