Restarting; Important Safety Notes; System - Mercedes-Benz CLA Operator's Manual

Information on air pressure for the tires on
your vehicle can be found:
on the vehicle's Tire and Loading
R
Information placard on the B-pillar
on the tire pressure label on the fuel filler
R
flap
in the "Tire pressure information" section
R
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
X
be checked.
Press the tire pressure gauge securely onto
X
the valve.
Read the tire pressure and compare it with
X
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
X
the recommended value (
If the tire pressure is too high, release air
X
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.
X
Repeat these steps for the other tires.
X
Tire pressure loss warning system
(Canada only)
General notes
While the vehicle is in motion, the tire
pressure loss warning system monitors the
set tire pressure using the rotational speed of
the wheels. This enables the system to detect
significant pressure loss in a tire. If the speed
of rotation of a wheel changes as a result of
a loss of pressure, a corresponding warning
message will appear in the multifunction
display.
You can recognize the tire pressure loss
warning by the
Active Press 'OK' to Restart
which appears in the
multifunction display. Further information on
the message display can be found under
"Restarting the tire pressure loss warning

system" (

Important safety notes

The tire pressure warning system does not
warn you of an incorrectly set tire pressure.
Observe the notes on the recommended tire
pressure (
The tire pressure loss warning does not
replace the need to regularly check the tire
pressure. An even loss of pressure on several
tires at the same time cannot be detected by
the tire pressure loss warning system.
The tire pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the
tire is penetrated by a foreign object. In the
page 316).
Y
event of a sudden loss of pressure, bring the
vehicle to a halt by braking carefully. Avoid
abrupt steering maneuvers.
The function of the tire pressure loss warning
system is limited or delayed if:
R
R
R
R
R
Restarting the tire pressure loss
warning system
Restart the tire pressure loss warning system
if you have:
R
R
R
Run Flat Indicator
Service
page 319).
Y
page 316).
Y
snow chains are mounted on your vehicle's
tires.
road conditions are wintry.
you are driving on sand or gravel.
you adopt a very sporty driving style
(cornering at high speeds or driving with
high rates of acceleration).
you are driving with a heavy load (in the
vehicle or on the roof).
changed the tire pressure
changed the wheels or tires
mounted new wheels or tires
Tire pressure
319
message
menu of the
Z