Page 320 of 473

319 Operation
Maintenance
Maintenance
We strongly recommend that you have
your vehicle serviced by an authorized
Mercedes-Benz Center, in accordance with
the Maintenance Booklet at the times
called for by the maintenance service indi-
cator.
Failure to have the vehicle maintained in
accordance with the Maintenance Booklet
and the maintenance service indicator at
the designated times/mileage may result
in vehicle damage not covered by the
Mercedes-Benz Limited Warranty.Maintenance service indicator
message
The maintenance service indicator mes-
sage will notify you when your next mainte-
nance service is due.
Starting approximately 1 month before
your next maintenance service is due, one
of the following messages will appear in
the right multifunction display while you
are driving or when you switch on the igni-
tion (example service A):
Service A in XXXXX miles (km)
Service A in XXX days
Service A Due now
The type of maintenance service due is in-
dicated in the left multifunction display:
9Basic service (A)½
Extended service (B)Clearing the maintenance service indi-
cator message
The maintenance service indicator mes-
sage is automatically cleared after approx-
imately 30 seconds
after you have switched on the ignition
after you have reached the mainte-
nance service threshold while driving
You can also clear the maintenance ser-
vice indicator message yourself.
i
Vehicles equipped with Maintenance
System (U.S. vehicles) only:
The Maintenance System tracks distance driven
and the time elapsed since the last maintenance
service, calculates other maintenance service
work required, and calls for the next mainte-
nance service accordingly.
i
Vehicles equipped with FSS (Flexible Ser-
vice System) only (Canada vehicles):
The interval between maintenance services de-
pends on your driving habits. A gentle driving
style, moderate engine speeds and the avoid-
ance of short-distance trips will lengthen the in-
terval between services.
Page 321 of 473

320 OperationMaintenance1Reset button
Press reset button1 on the instru-
ment cluster.
The maintenance service indicator
message is cleared and the standard
display appears in the multifunction
display (
page 145).Maintenance service term exceeded
If you have exceeded the suggested main-
tenance service term, you will see the fol-
lowing message in the right multifunction
display:
Service A exceeded by XXXX miles (km)
Service A exceeded by XXX daysIn addition, a signal sounds when the mes-
sage appears.
Any authorized Mercedes-Benz Center will
reset the maintenance service indicator
following a completed maintenance ser-
vice.Calling up the maintenance service
indicator display
You can call up the maintenance service in-
dicator display at any time to check when
the next maintenance service is due.
Switch on the ignition (
page 39).
Press button è or ÿ on the mul-
tifunction steering wheel repeatedly
until the standard display appears in
the multifunction display (
page 145).
Press button k or j on the
multifunction steering wheel until the
maintenance service indicator display
with the maintenance service symbol
9 or
½
appears in the left mul-
tifunction display and the maintenance
service deadline appears in the right
multifunction display.
i
The menu overview can be found on
(
page 142).
Page 326 of 473

325 Operation
Vehicle care
Ornamental moldings
For regular cleaning and care of ornamen-
tal moldings, use a use damp cloth.Headlamps, tail lamps, side markers,
turn signal lenses
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Sham-
poo, with plenty of water.Cleaning the Distronic* system sensor
cover
1Distronic* system sensor cover
Switch off the ignition (
page 39).
Use a mild car wash detergent, such as
Mercedes-Benz approved Car
Shampoo, with plenty of water and a
non-scratching cloth to clean sensor
cover1.
i
After running the vehicle through an auto-
matic car wash, wipe any wax off of the wind-
shield (
page 326). This will prevent smears
and reduce wiping noise which can be caused by
residual wax on the windshield.
When leaving the car wash, make sure that the
mirrors are folded out. Otherwise they may vi-
brate.
!
Do not use chrome cleaner on ornamental
moldings. Although ornamental moldings may
have chrome appearance, they could be made of
anodized aluminum that will be damaged when
cleaned with chrome cleaner. Instead, use damp
cloth to clean those ornamental moldings.
Very dirty ornamental moldings of which you are
sure are chrome-plated, use a chrome cleaner. If
in doubt whether an ornamental molding is
chrome-plated, contact an authorized
Mercedes-Benz Center.
!
Only use window cleaning solutions that are
suitable for plastic lamp lenses. Window clean-
ing solutions which are not suitable may damage
the plastic lamp lenses of the headlamps. There-
fore, do not use abrasives, solvents or cleaners
that contain solvents.
Never apply strong force and only use a soft,
non-scratching cloth when cleaning the lenses.
Do not attempt to wipe dirty lenses with a dry
cloth or sponge.
Otherwise you may scratch or damage the lens
surface.
Page 327 of 473

326 OperationVehicle care
Restart the engine after cleaning
sensor cover1.
Cleaning the Parktronic system*
sensors
1Parktronic system* sensors in front
bumper
Use a mild car wash detergent, such as
Mercedes-Benz approved Car
Shampoo, with plenty of water and a
soft, non-scratching cloth to clean
sensors1 on the bumpers.Cleaning the windows and the wiper
blades
Make sure the hood is fully closed.
Switch on the ignition (
page 39).
Turn combination switch to wiper
settingII (
page 57).
With wiper arms in vertical position,
switch off the ignition (
page 39).
!
To prevent scratches or damage, never ap-
ply strong force and only use a soft, non-scratch-
ing cloth when cleaning Distronic system sensor
cover1. Do not attempt to wipe dirty sensor
with a dry cloth or sponge.
!
Do not apply strong pressure to the sensor
covers. Applying strong pressure may damage
the sensor covers.
Follow the instructions provided by the power
washer manufacturer on maintaining a distance
between the vehicle and the nozzle of the power
washer.
!
To prevent scratches, never apply strong
force and only use a soft, non-scratching cloth
when cleaning the sensors. Do not attempt to
wipe dirty sensors with a dry cloth or sponge.
!
The windshield wipers must be in a vertical
position before folding them away from the wind-
shield. They could otherwise damage the hood.
Never open the hood when the wiper arms are
folded forward.
Page 337 of 473

336 Practical hintsWhat to do if …Problem
Possible cause/consequence
Suggested solution
ú
(USA only)
±
(Canada only)
The yellow engine malfunction
indicator lamp comes on while
driving.
There is a malfunction in:
The fuel injection system
The ignition system
The emission control system
Systems which effect emissions
Such malfunctions may result in excessive
emissions values and may switch the engine
to its limp-home (emergency operation)
mode.
Have the vehicle checked as soon as
possible by an authorized
Mercedes-Benz Center.
An on-board diagnostic connector is
used by the service station to link the
vehicle to the shop diagnostics sys-
tem. It allows the accurate identifica-
tion of system malfunctions through
the readout of diagnostic trouble
codes. It is located in the front left
area of the footwell next to the park-
ing brake pedal.
The fuel cap is not closed tightly.
Check the fuel cap (
page 271).
If it is not closed properly:
Close the fuel cap.
If it is closed properly:
Have the fuel system checked by an
authorized Mercedes-Benz Center.
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 357 of 473

356 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
Front passenger
airbag
enabled
See Oper. Manual
The 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 pas-
senger seat is empty. Objects
on the seat or forces acting on
the seat may make the system
sense supplemental weight.
Stop the vehicle in a safe location as soon as possible and
check the passenger seat for the following:
Switch off the ignition (
page 39).
Remove child and child restraint from passenger seat and
properly secure the child in rear seat employing the child
restraint if necessary.
Make sure that no objects which applying supplemental
weight onto the seat are present. The system may recog-
nize such supplemental weight and sense that an occu-
pant on the passenger seat is of a greater weight than
actually present.
Keep the seat unoccupied, close the passenger door and
switch on the ignition (
page 39).
Monitor the 5/indicator lamp between the center air
vents and the multifunction display in the instrument cluster
(
page 139) for the following:
(Continued on next page)
Page 358 of 473

357 Practical hints
What to do if …
Left display
Right display
Possible cause/consequence
Possible solution
Front passenger
airbag
enabled
See Oper. Manual
With the seat unoccupied and the ignition switched on,
the 5/indicator lamp between the center air
vents should illuminate and remain illuminated, indicating
that the OCS (
page 72) has deactivated the air bag.
the message Front passenger airbag enabled See Oper.
Manual or the message Front passenger airbag disabled
See Oper. Manual should not appear in the multifunction
display at any time the seat is unoccupied. Wait at last
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 72), the 5/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 5/ indicator lamp remains
out even after performing the above correc-
tive 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.