See also:

Treadwear indicators
Narrow bars (tread wear bars) that are distributed over the tire tread. If the tire tread is level with the bars, the wear limit of 1/16 in (1.6 mm) has been reached. ...

Tire pressure of at least 180 kPa (1.8 bar/26 psi) is not reached
If, after five minutes, a pressure of 180 kPa (1.8 bar/26 psi) has not been achieved: •► Press the on/off switch on the tire inflation compressor to 0. The tire inflation compressor is swi ...

2011 Mercedes-Benz CL-Class Review by Warren Brown
Something happened on my way to Earth, the intended destination of this week's column in terms of reviewing a vehicle affordable for most of us. I was hit by a meteor - a hot, shapely, pricey piec ...