Page 293 of 442

293 Operation
Tires and wheels
Press the reset button (
page 22).
The following message will appear in
the multifunction display:
Check current tire pres.?
Press the æ button.
The following message will appear in
the multifunction display field:Tire pres. monitor acitvated
The tire inflation pressure monitor will
now monitor the tire inflation pressure
values of all four tires.
The following message will appear in
the multifunction display field:
Tire pres. monitor
Pres. display after driving a few
mins. Reactivate using R buttonThis display appears until the individual
inflation pressure values are matched
with the tires. The individual values are
then displayed (
page 340).If you wish to cancel activation:
Press the ç button.
If the following message appears in the
multifunction display field:
Reactivate tire
Pres. monitor
or
Tire pres.
Check tires!
Check the tire inflation pressures and
correct them if necessary.
Reactivate the tire inflation pressure
monitor.
Rotating wheels
On vehicles with the same wheel size all
around, wheels can be rotated every 3000
to 6000 miles (5 000 to 10 000 km), or
sooner if necessary, according to the de-
gree of tire wear. The same direction of tire
rotation must be retained.
Rotate the wheels before the characteris-
tic tire wear pattern becomes visible
(shoulder wear on front wheels and tread
center wear on rear wheels).
Thoroughly clean the inner side of the
wheels after each rotation. Check and en-
sure proper tire inflation pressure.Warning!
G
Rotate front and rear wheels only if they are
of the same size.
Page 294 of 442
294 OperationTires and wheels
For information on wheel change, see the
“Practical hints” section (
page 350) and
(
page 366).
!If your ve hic le i s eq uip pe d with a ti re i n-
flation pressure monitor*, there are
electronic components built into the
wheel.
Do not use mounting tools in the area
of the valve as they could damage the
electronic components.
To prevent damage or incorrect instal-
lation, have the tires changed at an au-
thorized Mercedes-Benz Center.
Warning!
G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
96 lb-ft (130 Nm).
Use only genuine Mercedes-Benz wheel
bolts specified for your vehicle's rims.
Page 309 of 442
309 Practical hints
What to do if …
Where will I find ...?
Unlocking / locking in an emergency
Opening / closing in an emergency
Replacing bulbs
Replacing wiper blades
Flat tire
Batteries
Jump starting
Towing the vehicle
Fuses
Page 340 of 442

340 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
.
Turn signal, rear left
Back-up light on!
The left rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.
Turn signal, rear right
Back-up light on!
The right rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.
Turn sig., front left
Back-up light on!
The left front turn signal lamp is malfunc-
tioning. A backup bulb is being used.
Replace the bulb as soon as possible.
Turn sig., front right
Back-up light on!
The right front turn signal lamp is mal-
functioning. A backup bulb is being used.
Replace the bulb as soon as possible.
Turn sig.,
left
mirror
The left turn signal in the side mirror is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.
Have the LEDs replaced as soon as
possible.
Turn sig.,
right
mirror
The right turn signal in the side mirror is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.
Have the LEDs replaced as soon as
possible.
H
Tire pres. monitor
activated
!
The tire pressure is being checked.
Tire pres. monitor
Reactivate
The tire inflation pressure monitor* is de-
activated.
Activate the tire inflation pressure
monitor* (
page 292).
Page 341 of 442
341 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
H
Tire pres. monitor
not activated!
The tire inflation pressure monitor* is un-
able to monitor the tire pressure due to
the presence of several wheel sensors
in the vehicle.
excessive wheel sensor tempera-
tures.
a nearby radio interference source.
unrecognized wheel sensors mount-
ed.
Check the tire pressure at the next
service station.
Tire pres. monitor
Pres. display after
driving a few mins. Re-
activate using R button
The tire pressure is being checked.
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
Page 342 of 442

342 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
H
Tire pres. monitor
Visit workshop!
The tire inflation pressure monitor is mal-
functioning.
A wheel without proper sensor was in-
stalled.
Have the tire inflation pressure moni-
tor checked by an authorized
Mercedes-Benz Center.
Change the wheel (
page 370).
Tire pres.
Caution, tire defect!
The tire pressure has decreased signifi-
cantly in one or more tires.
Check and correct tire pressure as re-
quired (
page 290).
Tire pres.
Caution, tire defect
One or more tires is deflating.
Carefully bring the vehicle to a halt,
avoiding abrubt steering and braking
maneuvers.
Change the wheel (
page 370).
Tire pres.
Check tires!
The tire pressure in one or more tires is
already below the minimum value.
The tire pressure in one or more tires is
low.
Carefully bring the vehicle to a halt,
avoiding abrubt steering and braking
maneuvers.
Change the wheel (
page 370).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
Page 343 of 442

343 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
H
Tire pres. RL
Caution
Tire defect
The left rear tire is deflating.
Carefully bring the vehicle to a halt,
avoiding abrupt steering and braking
maneuvers.
Change the wheel (
page 370).
Tire pres. RL
Check tires!
The left rear tire pressure is low.
Carefully bring the vehicle to a halt.
Check the tire pressure.
Change the wheel (
page 370).
Tire pres. RR
Caution
Tire defect
The right rear tire is deflating.
Carefully bring the vehicle to a halt,
avoiding abrubt steering and braking
maneuvers.
Change the wheel (
page 370).
Tire pres. RR
Check tires!
The right rear tire pressure is low.
Carefully bring the vehicle to a halt.
Check the tire pressure.
Change the wheel (
page 370).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
Page 344 of 442

344 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
H
Tire pres. FL
Caution
Tire defect
The left front tire is deflating.
Carefully bring the vehicle to a halt,
avoiding abrupt steering and braking
maneuvers.
Change the wheel (
page 370).
Tire pres. FL
Check tires!
The right rear tire pressure is low.
Carefully bring the vehicle to a halt.
Check the tire pressure.
Change the wheel (
page 370).
Tire pres. FR
Caution
Tire defect
The right front tire is deflating.
Carefully bring the vehicle to a halt,
avoiding abrubt steering and braking
maneuvers.
Change the wheel (
page 370).
Tire pres. FR
Check tires!
The right front tire pressure is low.
Carefully bring the vehicle to a halt.
Change the wheel (
page 370).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.