Wheels and tires, Tire pressure – Mercedes-Benz SLK-Class 2015 Owners Manual User Manual

Page 322

event of a sudden loss of pressure, bring the

vehicle to a halt by braking carefully. Avoid

abrupt steering maneuvers.
The tire pressure monitor has a yellow warn-

ing lamp in the instrument cluster for indicat-

ing a pressure loss or malfunction. Whether

the warning lamp flashes or lights up indi-

cates whether a tire pressure is too low or the

tire pressure monitor is malfunctioning:

if the warning lamp is lit continuously, the

tire pressure on one or more tires is signif-

icantly too low. The tire pressure monitor is

not malfunctioning.

if the warning lamp flashes for around a

minute and then remains lit constantly, the

tire pressure monitor is malfunctioning.

In addition to the warning lamp, a mes-

sage appears in the multifunction display.
Further information can be found on

(

page 236).

If the tire pressure monitor is malfunctioning,

it may take more than ten minutes for the tire

pressure warning lamp to inform you of the

malfunction by flashing for approximately one

minute and then remaining lit. When the mal-

function has been rectified, the tire pressure

warning lamp goes out after a few minutes of

driving.
The tire pressure values indicated by the on-

board computer may differ from those meas-

ured at a gas station with a pressure gauge.

The tire pressures shown by the on-board

computer refer to those measured at sea

level. At high altitudes, the tire pressure val-

ues indicated by a pressure gauge are higher

than those shown by the on-board computer.

In this case, do not reduce the tire pressures.
The operation of the tire pressure monitor can

be affected by interference from radio trans-

mitting equipment (e.g. radio headphones,

two-way radios) that may be being operated

in or near the vehicle.

Checking the tire pressure electroni-

cally

Make sure that the SmartKey is in position

2 in the ignition lock (

page 139).

Press the = or ; button on the steer-

ing wheel to select the

Service

menu.

Press the 9 or : button to select

Tire Pressure

Press the a button.

The current tire pressure of each tire is

shown in the multifunction display.

If the vehicle has been parked for over

20 minutes, the

Tire pressure will be

displayed after driving a few

minutes

message appears.

After a teach-in process, the tire pressure

monitor automatically detects new wheels or

new sensors. As long as a clear allocation of

the tire pressure value to the individual

wheels is not possible, the

Tire Pressure

Monitor Active

display message is shown

instead of the tire pressure display. The tire

pressures are already being monitored.

If an emergency spare wheel is mounted,

the system may continue to show the tire

pressure of the wheel that has been

removed for a few minutes. If this occurs,

note that the value displayed for the posi-

tion where the spare wheel is mounted is

not the same as the current tire pressure of

the emergency spare wheel.

Tire pressure monitor warning mes-

sages

If the tire pressure monitor detects a pressure

loss in one or more tires, a warning message

is shown in the multifunction display and the

yellow tire pressure monitor warning lamp

comes on.

If the

Please Correct Tire Pressure

message appears in the multifunction dis-

play, the tire pressure in at least one tire is

320

Tire pressure

Wheels

and

tires