Page 319 of 426
319 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 128) displays both cleared and
uncleared messages.
High-priority messages appear in the
multifunction display in red color.Some low-priority messages go out after a
few seconds.
Certain messages of high priority cannot
be cleared from the multifunction display
using the reset button (
page 29) or
button j, k, ÿ, or è on the
multifunction steering wheel.
Other messages of high priority and
messages of less immediate priority can
be cleared from the multifunction display
using the reset button or button j,
k, ÿ, or è on the multifunction
steering wheel. They are then stored in the
vehicle status message memory
(
page 128). Remember that clearing a
message will only make the message
disappear. 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.
Page 320 of 426
320 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 multifunction display. High
priority messages appear in red color.
For your convenience the messages are
divided into two sections:
Text messages (
page 321)
Symbol messages (
page 332)
Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
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. Contact 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
display to come on. Make sure the lamps and
multifunction display are in working order before
starting your journey.
Page 325 of 426
325 Practical hints
What to do if ...
Left display
Right display
Possible cause/consequence
Possible solutionWith the seat unoccupied and the ignition switched on,
the PASSENGER AIR BAG OFF indicator lamp (
page 70) should
illuminate and remain illuminated, indicating that the OCS
(
page 67) has deactivated the passenger front air bag and the
passenger knee air bag.
the message
Front Passeng. Airbag Enabled See Oper. Manual
or the message
Front Passeng. Airbag Disabled See Oper. Man-
ual
should not appear in the multifunction display at any time the
seat is unoccupied. Wait at least 60 seconds for the system to
complete the necessary check cycles and to make sure neither
message appears in the multifunction display.
If above conditions are met, you can occupy the passenger seat again.
Depending on the passenger classification sensed by the OCS
(
page 67), the PASSENGER AIR BAG OFF indicator lamp will remain
illuminated or go out.
If above conditions are not met, the system is not working properly.
Have the system checked as soon as possible by an authorized
Mercedes-Benz Center.
Warning!
G
If the PASSENGER AIR BAG OFF indicator
lamp remains out even after performing the
above corrective steps, do not have any
children 12 years old and under and other
small individuals use the passenger seat
until the system has been repaired.
Page 327 of 426
327 Practical hints
What to do if ...
Left display
Right display
Possible cause/consequence
Possible solution
the message
Front Passeng. Airbag Enabled See Op-
er. Manual or the message
Front Passeng. Airbag
Disabled See Oper. Manual should not appear in the
multifunction display at any time the seat is unoccu-
pied. Wait at least 60 seconds for the system to com-
plete the necessary check cycles and to make sure
neither message appears in the multifunction display.
If above conditions are met, you can occupy the passenger
seat again. Depending on the passenger classification
sensed by the OCS (
page 67), the PASSENGER AIR BAG
OFF indicator lamp will remain illuminated or go out.
If above conditions are not met, the system is not working
properly. Have the system checked as soon as possible by
an authorized Mercedes-Benz Center.
Warning!
G
If the PASSENGER AIR BAG OFF indicator
lamp remains illuminated with an adult oc-
cupant on the passenger seat even after
performing the above corrective steps, do
not have any passenger use the passenger
seat until the system has been repaired.
Page 328 of 426
328 Practical hintsWhat to do if ...Left display
Right display
Possible cause/consequence
Possible solution
P
Gear Selector
Lever To P
You wish to start the engine and the
selector lever is not in park
positionP.
Move the selector lever to park positionP.
Shift To N
To Start
Move the selector lever to neutral
positionN.
SLR
ACL Malfunction
Service
Required
The locking system is
malfunctioning.
The transmission cooling system
is malfunctioning.
Have the system checked at an authorized
Mercedes-Benz Center immediately.
SRS
Restraint System
Malfunction
Service
Required
There is a malfunction in the supple-
mental restraint systems. The
air bags or Emergency Tensioning
Devices (ETDs) could deploy unex-
pectedly or fail to activate in an acci-
dent.
Drive with added caution and have the
system checked at an authorized
Mercedes-Benz Center immediately.
Warning!
G
In the event that a malfunction of the SRS is
indicated as outlined above, the SRS may
not be operational. For your safety, we
strongly recommend that you contact an
authorized Mercedes-Benz Center immedi-
ately to have the system checked; otherwise
the SRS may not be deployed when needed
in an accident, which could result in serious
or fatal injury, or it might deploy
unexpectedly and unnecessarily which
could result in an accident and/or injury to
you or to others.
Page 330 of 426
330 Practical hintsWhat to do if ...Left display
Right display
Possible cause/consequence
Possible solution
Tire Pressure
Monitor
Wheel Sensor Missing
One or more wheels without appropriate
wheel sensors mounted (e.g. spare wheel).
The respective tire is indicated by
---
instead of the tire inflation pressure in the
multifunction display.
Have the TPMS checked by an autho-
rized Mercedes-Benz Center.
Have appropriate wheel sensors in-
stalled by an authorized
Mercedes-Benz Center.
Tire Pressure
Monitor
Currently
Unavailable
The TPMS is unable to monitor the tire pres-
sure due to a nearby radio interference
source.
As soon as the causes for the malfunc-
tion are no longer present, the TPMS
automatically becomes active again
after a few minutes driving.
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. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
Page 334 of 426
334 Practical hintsWhat to do if ...Left display
Right display
Possible cause/
consequence
Possible solution
T
Reduced
Brake Effect
Depress brake
pedal fully.
The electro-hydraulic brake
system is in emergency opera-
tion mode. Considerably great-
er brake pedal force is required
and the pedal travel is longer.
The stopping distance is in-
creased. If necessary, apply full
pressure to the brake pedal.
The maximum speed is limited
to 55 mph (90 km/h).
Stop the vehicle in a safe location or as soon as it is safe
to do so.
Apply the parking brake (
page 55).
Do not drive any further.
Prevent the vehicle from rolling away by blocking the
wheels with wheel chocks or other sizeable objects.
Contact an authorized Mercedes-Benz Center.
or
Call for Roadside Assistance.
Warning!
G
Driving while this message is displayed can
result in an accident. Have your brake
system checked immediately.
If the electro-hydraulic brake system enters
its emergency operation mode, the driver
must apply significantly greater brake pedal
pressure and depress the pedal much fur-
ther than normal to obtain braking effect.
If necessary, apply full pressure to the brake
pedal. Brakes are only applied to the front
wheels. Stopping distance is increased!
If there is a malfunction in the
electro-hydraulic brake system, we recom-
mend that the vehicle be transported with
all wheels off the ground using flatbed or ap-
propriate wheel lift/dolly equipment.
A tow bar must be used if circumstances do
not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on
the ground is only permissible for distances
up to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km/h). For more infor-
mation, see “Towing the vehicle”
(page 373).
Page 335 of 426
335 Practical hints
What to do if ...
Left display
Right display
Possible cause/
consequence
Possible solution
;
(USA only)
3
(Canada only)
Check
Brake Fluid Level
Risk of accident!
There is insufficient brake fluid
in the reservoir.
Stop the vehicle in a safe location or as soon as
it is safe to do so.
Do not drive any further.
Contact an authorized Mercedes-Benz Center.
Do not add brake fluid! This will not solve the
problem.
Warning!
G
Driving with the message
Check Brake
Fluid Level
displayed can result in an
accident. Have your brake system checked
immediately. Do not add brake fluid before
checking the brake system. Overfilling the
brake fluid reservoir can result in spilling
brake fluid on hot engine parts and the
brake fluid catching fire. You can be
seriously burned.
!
If you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum mark or
below, have the brake system checked for brake
pad thickness and leaks.
