Checking tire pressure 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 the tire pressure and compare it with
the recommended value on the Tire and
Loading Information placard on the
B-pillar on the driver's side of your vehicle.
If necessary, increase the tire pressure to
the recommended value.
If the tire pressure is too high, release air
by pressing down the metal pin in the valve
using the tip of a pen, for example. Then
check the tire pressure again using the tire
pressure gauge.
Screw the valve cap onto the valve.
Repeat these steps for the other tires.
See also:
Setting the side air vents
► To open/close: turn thumbwheel 3 to the
left or right.
Side window defroster vent 1 is never
completely shut, even if side air vent 2 is
shut. ...
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
U.S. government course. For example, a tire
graded 150 wo ...
Distance warning function (vehicleswith DISTRONIC)
This function provides a warning from a speed
of approximately 20 mph(30 km/h), if:
• for a period of several seconds, the
distance to the vehicle in front is too short
for the speed at which you ...
