Page 345 of 473

344 Practical hintsWhat to do if …Warning!
G
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or the tire inflation pressure
label. If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or the tire inflation pressure label,
you should determine the proper tire infla-
tion pressure for those tires.
As an added safety feature, your vehicle has
been equipped with a tire pressure monitor-
ing system (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires is significantly under-inflated. Accord-
ingly, when the low tire pressure telltale illu-
minates, you should stop and check your
tires as soon as possible, and inflate them to
the proper pressure. Driving on a significant-
ly underinflated tire causes the tire to over-
heat and can lead to tire failure.
Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehi-
cle’s handling and stopping ability. Please
note that the TPMS is not a substitute for
proper tire maintenance, and it is the driv-
er’s responsibility to maintain correct tire
pressure, even if underinflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.
USA only:
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction, the
telltale will flash for approximately
one minute and then remain continuously
illuminated. This sequence will continue
upon subsequent vehicle start-ups as long
as the malfunction exists. When the mal-
function indicator is illuminated, the system
may not be able to detect or signal low tire
pressure as intended.
TPMS malfunctions may occur for a variety
of reasons, including the installation of in-
compatible replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the
TPMS malfunction telltale after replacing
one or more tires or wheels on your vehicle
to ensure that the replacement or alternate
tires and wheels allow the TPMS to continue
to function properly.
Page 346 of 473
345 Practical hints
What to do if …
Air bag off indicator lampProblem
Possible cause/consequence
Suggested solution
5/
The front passenger front air bag
off indicator lamp illuminates and
remains illuminated with the
weight of a typical adult or some-
one larger than a small individual
on the passenger seat.
The system is malfunctioning.
Have the system checked as soon as
possible by an authorized
Mercedes-Benz Center.
Also read and observe any messages in
the multifunction display and follow cor-
rective steps (
page 356).
Warning!
G
If the5/indicator lamp illuminates
and remains illuminated with the weight of a
typical adult or someone larger than a small
individual on the passenger seat, do not
have any passenger use the passenger seat
until the system has been repaired.
Page 347 of 473

346 Practical hintsWhat to do if …Problem
Possible cause/consequence
Suggested solution
5/
The front passenger front air bag
off indicator lamp does not illumi-
nate and/or does not remain illu-
minated with the weight of a
typical 12-month-old child in a
standard child restraint or less on
the passenger seat.
The system is malfunctioning.
Make sure there is nothing between
seat cushion and child seat and check
installation of the child seat.
Make sure that no objects applying sup-
plemental weight onto the seat are
present.
If the front passenger front air bag off in-
dicator lamp remains out, have the sys-
tem checked as soon as possible by an
authorized Mercedes-Benz Center. Do
not transport a child on the passenger
seat until the system has been repaired.
Also read and observe any messages in
the multifunction display and follow cor-
rective steps (
page 356).
Warning!
G
If the5/indicator lamp does not il-
luminate or remains out with the
weight of a typical 12-month-old child in a
standard child restraint or less on the front
passenger seat, do not transport a child on
the passenger seat until the system has
been repaired.
Page 348 of 473

347 Practical hints
What to do if …
Vehicle status messages in the multi-function display
Warning and malfunction messages ap-
pear in the in the multifunction display lo-
cated in the instrument cluster.
Certain warning and malfunction messag-
es are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in
this Operator’s Manual.
Selecting the vehicle status message
memory menu in the control system
(page 152) displays both cleared and
uncleared messages.
High-priority messages appear in the mul-
tifunction display in red color.Certain messages of high priority cannot
be cleared from the multifunction display
using the reset button (
page 26) or but-
ton j, k, ÿ, or è on the
multifunction steering wheel.
Other messages of high priority and mes-
sages of less immediate priority can be
cleared from the multifunction display us-
ing the reset button or button j, k,
ÿ, or è on the multifunction steer-
ing wheel. They are then stored in the vehi-
cle status message memory (
page 152).
Remember that clearing a message will not
correct the condition that caused the mes-
sage to appear.
Warning!
G
All categories of messages contain impor-
tant information which should be taken note
of and, where a malfunction is indicated, ad-
dressed as soon as possible at an autho-
rized Mercedes-Benz Center.
Failure to repair condition noted may cause
damage not covered by the Mercedes-Benz
Limited Warranty, or result in property dam-
age or personal injury.
Page 349 of 473

348 Practical hintsWhat to do if …
On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may ap-
pear in the multifunction display.
For your convenience the messages are di-
vided into two sections:
Text messages (
page 349)
Symbol messages (
page 365)
Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative. Contact your nearest au-
thorized Mercedes-Benz Center.
As a result, you will not be able to see infor-
mation about your driving conditions, such
as speed or outside temperature, warn-
ing/indicator lamps, malfunction/warning
messages or the failure of any systems.
Driving characteristics may be impaired.
If you must continue to drive, do so with
added caution. Visit an authorized
Mercedes-Benz Center as soon as possible.
i
Switching on the ignition causes all instru-
ment cluster lamps (except high beam headlamp
indicator lamp and turn signal indicator lamps
unless activated) as well as the multifunction dis-
play to come on. Make sure the lamps and the
multifunction display are in working order before
starting your journey.
Page 350 of 473
349 Practical hints
What to do if …
Text messagesLeft display
Right display
Possible cause/consequence
Possible solution
ABC
Malfunction
Stop car
You have started driving although the
vehicle level is still too low.
The vehicle is being raised. The ABC
message goes out after a few seconds.
Stop your vehicle in a safe location or as
soon as it is safe to do so.
Wait until the message disappears from
the multifunction display.
You may then drive off.
The vehicle is losing oil.
The ABC message is continuously
shown.
Stop your vehicle in a safe location or as
soon as it is safe to do so.
Contact an authorized Mercedes-Benz
Center.
Page 351 of 473
350 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
ABC
Malfunction
Stop car
ABC is malfunctioning.
Stop the vehicle in a safe location and
press the vehicle level control button to
select a higher vehicle level (
page 226).
If the vehicle does not raise, observe the
following when you continue to drive:
Do not turn steering wheel too far to
avoid damaging the front fenders.
Listen for scraping noises.
Do not exceed a speed of 50 mph
(80 km/h).
Visit an authorized Mercedes-Benz Center
as soon as possible.
ABC
Malfunction
The capability of the ABC system is re-
stricted. This can impair handling.
Do not exceed a speed of 50 mph
(80 km/h).
Visit an authorized Mercedes-Benz Center
as soon as possible.
Vehicle rising
Please wait
The vehicle’s level is too low while at a
standstill. The vehicle will be raised.
Do not drive off.
Wait until the message disappears from
the multifunction display.
You may then drive off.
Page 352 of 473
351 Practical hints
What to do if …
Left display
Right display
Possible cause/consequence
Possible solution
ABS
ABS, ESP
unavailable
See
Oper. Manual
The ABS and ESP
® are not available
due to a malfunction. The BAS is also
deactivated.
The system’s self-diagnosis may not
be completed yet.
The electro-hydraulic brake system is
still functioning normally but without
the ABS, the ESP®, and the BAS avail-
able.
Drive a short distance with added caution
at a vehicle speed of above 12 mph
(20 km/h).
When the message disappears, the ABS,
the ESP
®, and the BAS are available again.
If the message does not disappear:
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Have the system checked at an authorized
Mercedes-Benz Center as soon as
possible.
Failure to follow these instructions increases
the risk of an accident.