Mercedes-Benz C-Class (W205) 2015 - 2021 Owners Manual: Notes on noise or unusual handling characteristics

While driving, pay attention to vibrations, noises and unusual handling characteristics, e.g. pulling to one side. This may indicate that the wheels or tires are damaged. If you suspect that a tire is defective, reduce your speed immediately. Stop the vehicle as soon as possible to check the wheels and tires for damage. Hidden tire damage could also be causing the unusual handling characteristics. If you find no signs of damage, have the tires and wheels checked at a qualified specialist workshop.

Notes on regularly inspecting wheels and tires

Carry out the following checks on all wheels regularly, at least once a month or as required, e.g.

prior to a long journey or driving off-road:

• Check the tire pressure.
• Visually inspect tires and wheels for damage.
• Check the valve caps.

  The valves must be protected against moisture and dirt by the valve caps approved especially for your vehicle by Mercedes-Benz.

• Visual check of the tire tread depth and the tire contact surface across the entire width.

  The minimum tread depth for summer tires is 1/8 in (3 mm) and for winter tires 1/6 in (4 mm).

Six marks 1 show where the bar indicators (arrow) are integrated into the tire tread. They are visible once a tread depth of approximately 1/6 in (1.6 mm) has been reached.