Page 410 of 522
409 Practical hints
What to do if …
Display message
Possible cause/consequence
Possible solution
Tire pressure is
only displayed
after driving for
a few minutes
Vehicles with Advanced TPMS*:
The tire inflation pressure is being checked.
Drive the vehicle for a few minutes.
Tire pressure
monitor
inoperative
The Advanced TPMS* (Canada only) is
malfunctioning.
Have the Advanced TPMS* checked by an authorized
Mercedes-Benz Center.
Tire pressure
monitor
inoperative
No wheel sensors
There are wheels without appropriate wheel
sensors mounted (e.g. winter tires).
Have the Advanced TPMS* checked by an authorized
Mercedes-Benz Center.
Have the appropriate wheel sensors installed by an
authorized Mercedes-Benz Center.
Tire pres. monitor
No wheel sensors
One or more sensors malfunction (e.g. bat-
tery in one or more wheel sensor is empty).
One or more wheels without appropriate
wheel sensors mounted (e.g. spare tire).
Have the Advanced TPMS* checked by an authorized
Mercedes-Benz Center.
Have the wheel sensors installed by an authorized
Mercedes-Benz Center.
The tire pressure for the respective tire is shown in the
multifunction display.
Page 414 of 522
413 Practical hints
What to do if …
Display symbol
Display message
Possible cause/consequence
Possible solution
(USA only);(Canada only)3
EBV, ABS, ESP
inoperative
See Operator’s Man.
ABS, ESP
®, EBP as well as PRE-SAFE
®
have switched off due to a malfunction.
BAS is also switched off.
The brake system is still functioning nor-
mally but without the ABS, BAS, ESP
® and
PRE-SAFE
® available.
Continue driving with added caution.
Adjust driving to be consistent with
reduced braking responsiveness.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Release parking
brake
You are driving with the parking brake
set.
Release the parking brake
(page 55).
Check
brake fluid level
There is insufficient brake fluid in the
reservoir.
Risk of accident! Stop the vehicle in a
safe location as soon as it is safe to do
so and notify 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 ac-
cident. Have your brake system checked im-
mediately.
Do not add brake fluid before checking the
brake system. Overfilling the brake fluid res-
ervoir 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.
Page 417 of 522
416 Practical hintsWhat to do if …Display symbol
Display message
Possible cause/consequence
Possible solution
•
Coolant
Stop, turn engine off
The poly-V-belt could be broken.
Stop the vehicle in a safe location and im-
mediately turn off the engine.
Check the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise the en-
gine will overheat due to an inoperative wa-
ter pump which may result in damage to the
engine. Notify an authorized Mercedes-Benz
Center.
If it is intact:
Do not continue to drive the vehicle with
this message displayed. Doing so could re-
sult in serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Observe the coolant temperature indicator
in the instrument cluster (
page 27).
Drive immediately to the nearest authorized
Mercedes-Benz Center.
Page 423 of 522
422 Practical hintsWhat to do if …Display symbol
Display message
Possible cause/consequence
Possible solution
.
Active headlamps
inoperative
The active Bi-Xenon* headlamp system is
malfunctioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Active headlamps
Auxiliary bulb on
The active Bi-Xenon* headlamps are mal-
functioning. Another light is being used.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Reverse lamp
left side
The left reverse lamp is malfunctioning.
Replace the bulb as soon as possible.
Reverse lamp
right side
The right reverse lamp is malfunctioning.
Replace the bulb as soon as possible.
Brake-/tail lamp, left
Auxiliary bulb on
The left brake/tail lamp is malfunction-
ing.
This message will only appear if a critical
number of LEDs have stopped working.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Brake-/tail lamp, right
Auxiliary bulb on
The right brake/tail lamp is malfunction-
ing.
This message will only appear if a critical
number of LEDs have stopped working.
Contact an authorized Mercedes-Benz
Center as soon as possible.
3rd brake lamp
The high mounted brake lamp is malfunc-
tioning.
This message will only appear if a critical
number of LEDs have stopped working.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Page 425 of 522
424 Practical hintsWhat to do if …Display symbol
Display message
Possible cause/consequence
Possible solution
.
AUTO-Light
inoperative
The light sensor is malfunctioning. The
headlamps switch on automatically.
In the control system, set lamp operation
to manual mode (
page 138).
Switch on headlamps using the exterior
lamp switch.
Low beam
left side
The left low beam lamp is malfunction-
ing.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Center as soon as possible.
Low beam
right side
The right low beam lamp is malfunc-
tioning.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Center as soon as possible.
Page 430 of 522
429 Practical hints
What to do if …
Display symbol
Display message
Possible cause/consequence
Possible solution
L
Tele Aid
inoperative
One or more main functions of the
Tele Aid system are malfunctioning.
Have the Tele Aid system checked by
an authorized Mercedes-Benz Center.
Tele Aid
battery
The emergency power battery for the
Tele Aid system is malfunctioning. If the
vehicle battery is also dead, Tele Aid will
not be operational.
Have the Tele Aid system checked by
an authorized Mercedes-Benz Center.
1
Restraint system
malfunction
Visit workshop
The system is malfunctioning.
Drive with added caution to the near-
est authorized Mercedes-Benz Cen-
ter.
Warning!
G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational.
For your safety, we strongly recommend
that you visit an authorized Mercedes-Benz
Center immediately to have the system
checked;
otherwise the SRS may not be activated
when needed in an accident, which could re-
sult in serious or fatal injury, or it might de-
ploy unexpectedly and unnecessarily which
could also result in injury.
