Page 337 of 442

337 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
.
Brake light
Visit workshop!
Brake lamp illumination is delayed or
lamp is permanently on.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Brake light, left
Back-up light on!
The left brake lamp is malfunctioning. A
backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Brake light, right
Back-up light on!
The right brake lamp is malfunctioning. A
backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Display malfunction
Visit workshop!
The display for the lamps or the system is
malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglight,
left
The left front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
Front foglight,
right
The right front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
Headlt. cornering
The Bi-Xenon cornering lamps system is
malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Headlt. cornering
Back- up light on
The Bi-Xenon cornering lamps system is
malfunctioning. Another light is being
used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Headlt. cornering
malfunction
Visit workshop!
The Bi-Xenon cornering lamps system is
malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 338 of 442

338 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
.
High beam,
left
The left high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
High beam,
right
The right high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
License plate lamp,
left
The left license plate lamp is malfunction-
ing.
Replace the bulb as soon as possible.
License plate lamp,
right
The right license plate lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
Lamp sensor
Visit workshop!
The lamp sensor is malfunctioning. The
headlamps switch on automatically.
In the control system, set lamp opera-
tion to manual mode (
page 146).
Switch on headlamps using the exteri-
or lamp switch.
Low beam, left
The left low beam lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Low beam, right
The right low beam lamp is malfunction-
ing.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 339 of 442

339 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
.
Marker light
,
front left
The front left side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
Marker light
front right
The front right side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
Park. light, front left
Back-up light on!
The left parking lamps are malfunction-
ing. A backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Park. light,
front right
Back-up light on!
The right parking lamps are malfunction-
ing. A backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Rear foglight
Back-up light on!
The rear fog lamp is malfunctioning. A
backup bulb is being used.
Replace the bulb as soon as possible.
Reverse light, left
The left reverse light is malfunctioning.
Replace the bulb as soon as possible.
Reverse light, right
The right backup lamp is malfunctioning.
Replace the bulb as soon as possible.
Switch off lights!
Lamps have been turned on although the
SmartKey in the starter switch is in posi-
tion 0.
Switch off the headlights.
Tail light, left
Back-up light on!
The left tail lamp is malfunctioning. A
backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Tail light, right
Back-up light on!
The right tail lamp is malfunctioning. A
backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
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.