Tire tread
WARNING
Although the applicable federal motor vehicle safety laws consider a tire to be worn when the tread wear indicators (TWI) become visible at approximately 1/16 in (1.6 mm), we recommend that you do not allow your tires to wear down to that level. As tread depth approaches 1/8 in (3 mm), the adhesion properties on a wet road are sharply reduced.
Depending upon the weather and/or road surface (conditions), the tire traction varies widely.
Do not use tires that are excessively worn as the tire traction on wet road surfaces decreases significantly when the tread depth is less than 1/8 inch (3 mm).
Tread wear indicators (TWI) are required by law. Six indicators are positioned on the tire tread. They become visible as soon as a tread depth of approximately 1/16 inch (1.6 mm) has been reached. If this is the case, the tire is so worn that it must be replaced.
The recommended tread depth for summer tires is at least 1/8 inch (3 mm). The recommended tread depth for winter tires is at least 1/6 inch (4 mm).
Bar marking 1 for tread wear is integrated into the tire tread.
See also:
Checking tire pressures manually
To determine and set the correct tire
pressure, proceed as follows:
– Remove the valve cap of the tire that is to
be checked.
– Press the tire pressure gauge securely onto
the valve.
– Read t ...
Canceling Parking Guidance
Press the PARKTRONIC button on
the
center console.
Parking Guidance is canceled immediately
and PARKTRONIC is deactivated.
Parking Guidance is canceled automatically if
it is no longer poss ...
Problems with the occupant classification system
Problem
Possible causes/consequences and
Solutions
The
indicator lamp illuminates and remains illuminated.
The person on the front-passenger seat:
• has the weig ...