Page 383 of 514
382 Practical hintsWhat to do if …?Problem
Possible cause/consequence
Suggested solution
56
The front passenger front air bag
off indicator lamp does not illu-
minate and/or does not remain
illuminated with the weight of a
typical 12-month-old child in a
standard child restraint or less
on the front passenger seat.
The system is malfunctioning.
Make sure that there is nothing be-
tween seat cushion and child seat and
check installation of the child seat.
Make sure that no objects applying
supplemental weight onto the seat
are present.
If the front passenger front air bag off
indicator lamp remains out, have the
system checked as soon as possible
by an authorized Mercedes-Benz
Center. Do not transport a child on
the front passenger seat until the sys-
tem has been repaired.
Read and observe messages in the
multifunction display and follow cor-
rective steps (
page 389).
Warning!
G
If the 56 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 front passenger seat until the system
has been repaired.
Page 384 of 514
383 Practical hints
What to do if …?
Vehicle status messages in the multifunction display
Warning and malfunction messages
appear in the multifunction display located
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 146) displays both cleared and
uncleared messages.
High-priority messages appear in the
multifunction display in red color.Certain messages of high priority cannot
be cleared from the multifunction display
using the reset button (
page 136) or
button k,j, è, orÿ on the
steering wheel.
Other messages of high priority and
messages of less immediate priority can
be cleared from the multifunction display
using the reset button (page 136) or
button k,j, è, orÿ on the
steering wheel. They are then stored in the
vehicle status message memory
(
page 146). Remember that clearing a
message will only make the message dis-
appear. Clearing a message will not
correct the condition that caused the
message to appear.
Warning!
G
All categories of messages contain
important information which should be
taken note of and, where a malfunction is
indicated, addressed as soon as possible at
an authorized Mercedes-Benz Center.
Failure to repair condition noted may cause
damage not covered by the Mercedes-Benz
Limited Warranty, or result in property
damage or personal injury.Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
Contact your nearest authorized
Mercedes-Benz Center.
Page 385 of 514
384 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
appear in the display.
For your convenience the messages are
divided into two sections:
Text messages (
page 385)
Symbol messages (
page 395)
iSwitching on the ignition causes all
instrument cluster lamps (except low
beam headlamp indicator lamp, high
beam headlamp indicator lamp, and
turn signal indicator lamps unless
activated) as well as the multifunction
display to come on. Make sure the
lamps and the multifunction display are
in working order before starting your
journey.
Page 386 of 514
385 Practical hints
What to do if …?
Text messagesDisplay message
Possible cause/consequence
Possible solution
ABS
malfunction
Visit workshop
The ABS has detected a malfunction and
has switched off. The ESP
® and the BAS
are also deactivated.
The brake system is still functioning nor-
mally but without the ABS available.
Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Display malfunction
Visit workshop
The ABS or the ABS display is malfunc-
tioning.
Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Page 387 of 514
386 Practical hintsWhat to do if …?Display message
Possible cause/consequence
Possible solution
ABS
Anti-lock
braking system
inoperative
The charging voltage has fallen below
10 volts and the ABS has switched off.
The brake system is still functioning nor-
mally but without the ABS available.
When the voltage is above this value
again, the ABS is operational again.
Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Page 388 of 514
387 Practical hints
What to do if …?
Display message
Possible cause/consequence
Possible solution
ESP
unavailable
See Operator’s Manual
The ESP
® was deactivated because of a
malfunction or interrupted power supply. The
BAS and the Run Flat Indicator* are also deac-
tivated.
The ABS might not be operational.
The brake system is still functioning normally
but without the systems specified above.
Continue driving with added caution.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions
increases the risk of an accident.
If the yellow ESP
® warning lampv flashes
while driving and this message appears, the
electronic traction system has switched off to
prevent overheating of the drive wheel brakes.
As soon as the brakes have cooled off, the
electronic traction system switches on
again.
The self-diagnosis has not been completed
yet.
The ESP
®, BAS and the Run Flat Indicator* are
temporarily deactivated.
The brake system is still functioning normally
but without the systems specified above.
The display will clear after driving a short
distance at more than 12 mph (20 km/h).
Page 389 of 514
388 Practical hintsWhat to do if …?Display message
Possible cause/consequence
Possible solution
ESP
unavailable
See Operator’s Manual
The charging voltage has fallen below
10 volts. The battery might not be charged
sufficiently.
The ESP
®, BAS and the Run Flat Indicator* are
deactivated.
The brake system is still functioning normally
but without the systems specified above.
Continue driving with added caution.
If necessary, have the generator and
battery checked.
When the voltage is above this value again,
the ESP
® is operational again.
malfunction
Visit workshop
The ESP
® is deactivated because of a
malfunction.
The ESP®, BAS and the Run Flat Indicator* are
deactivated.
The brake system is still functioning normally
but without the systems specified above.
Continue driving with added caution.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions
increases the risk of an accident.
Display malfunction
Visit workshop
The ESP
® or the ESP
® display is
malfunctioning.
Continue driving with added caution.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions
increases the risk of an accident.
Page 390 of 514
389 Practical hints
What to do if …?
Display message
Possible cause/consequence
Possible solution
Front passenger
air bag
activated
see Oper.’s Man.
Front passenger front air bag is
activated while driving even though
a child, small individual, or object
below the system’s weight
threshold is on the front passenger
seat, or the front passenger seat is
empty. Objects on the seat or
forces acting on the seat may
make the system sense supple-
mental weight.
Stop the vehicle in a safe location as soon as possible and check the front
passenger seat for the following:
Switch off the ignition (
page 34).
Remove child and child restraint from front passenger seat and proper-
ly secure the child in rear seat employing the child restraint if neces-
sary.
Make sure that no objects applying supplemental weight onto the seat
are present. The system may recognize such supplemental weight and
sense that an occupant on the front passenger seat is of a greater
weight than actually present.
Keep the seat unoccupied, close the front passenger door and switch
on the ignition (
page 34).
(Continued on next page)
