Page 269 of 474

267 Operation
At the gas station
At the gas station
Refuelling
The fuel filler flap is located on the
right-hand side of the vehicle towards the
rear. Locking/unlocking the vehicle with
the SmartKey or the SmartKey with
KEYLESS-GO* automatically locks/un-
locks the fuel filler flap.
Turn off the engine
by turning the SmartKey to
position0. Remove the SmartKey
from the starter switch.
by pressing the KEYLESS-GO*
start/stop button. Open the driv-
er’s door (with the driver’s door
open, starter switch is in position 0,
same as SmartKey removed from
starter switch).
Open the fuel filler flap by pushing at
the point indicated by the arrow.
The fuel filler flap springs open.
Turn the fuel cap to the left and hold on
to it until possible pressure is released.
Take off the cap and set it in the recess
on the fuel filler flap.
Only fill your tank until the filler nozzle
unit cuts out – do not top up or over-
fill.
Warning!
G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
injury. Whenever you are around gasoline,
avoid inhaling fumes and skin contact,
extinguish all smoking materials. Never
allow sparks, flame or smoking materials
near gasoline!
Page 275 of 474

273 Operation
Engine compartment
One of the following messages will
subsequently appear in the right multi-
function display:
Engine oil level
OK
Add 1.0 qt.to reach
max.
oil level
(Canada:
1.0 l
)
Add 1.5 qts.
to reach max.oil level
(Canada:
1.5 l
)
Add 2.0 qts.to reach
max.
oil level
(Canada:
2.0 l
)
If necessary, add engine oil.
For adding engine oil see (
page 274).
For more information on engine oil, see the
“Technical data” section (
page 431) and
(
page 433).
Other display messages
If the SmartKey or the KEYLESS-GO*
start/stop button is not in position2, the
following message will appear:
Turn ignition on to
measure engine
oil level
Switch on the ignition (
page 36).If you see the message:
Observe
waiting time
If the engine is at operating tempera-
ture, wait five minutes before repeating
the check procedure.
If the engine is not at operating temper-
ature yet, wait 30 minutes before re-
peating the check procedure.
If you see the message:
Engine oil level
Not when
engine on
Turn off the engine.
If the engine is at operating tempera-
ture, wait five minutes before checking
oil.
If the engine is at operating tempera-
ture yet, you must wait 30 minutes be-
fore checking oil.
iIf you want to interrupt the checking
procedure, press thek orj
button on the multifunction steering
wheel.
Page 318 of 474

316 OperationVehicle careWe have selected car-care products and
compiled recommendations which are
specially matched to our vehicles and
which always reflect the latest technology.
You can obtain Mercedes-Benz approved
car-care products at an authorized
Mercedes-Benz Center.
Scratches, corrosive deposits, corrosion or
damage due to negligent or incorrect care
cannot always be removed or repaired with
the car-care products recommended here.
In such cases it is best to seek aid at an au-
thorized Mercedes-Benz Center.
The following topics deal with the cleaning
and care of your vehicle and give important
“how-to” information as well as references
to Mercedes-Benz approved car-care
products.Power washer
When using a power washer for cleaning
the vehicle, always observe manufactur-
er’s operating instructions.Tar stains
Quickly remove tar stains before they dry
and become more difficult to remove. A tar
remover is recommended.
Paintwork, painted body components
Mercedes-Benz approved Paint Care
should be applied when water drops on the
paint surface do not “bead up”, normally
every three to five months, depending on
climate and washing detergent used.
Mercedes-Benz approved Paint Cleaner
should be applied if the paint surface
shows signs of embedded dirt (i.e. loss of
gloss).
Do not apply any of these products or wax
if your vehicle is parked in the sun or if the
hood is still hot.
Use the appropriate MB-Touch-Up Stick
for quick and provisional repairs of minor
paint damage (i.e. chips from stones, vehi-
cle doors, etc.).
iVehicles with KEYLESS-GO*:
If a door handle is hit by a strong jet of
water, and a SmartKey with
KEYLESS-GO* is in close proximity, i.e.
within approximately 3 ft (1 m), the ve-
hicle could be inadvertently locked or
unlocked.!Never use a round nozzle to
power-wash tires. The intense jet of
water can result in damage to the tire.
Always replace a damaged tire.
Always keep the jet of water moving
across the surface. Do not aim directly
at electrical parts, electrical connec-
tors, seals, or other rubber parts.
Page 319 of 474

317 Operation
Vehicle care
Engine cleaning
Prior to cleaning the engine compartment,
make sure to protect electrical compo-
nents and connectors from contact with
water and cleaning agents.
Corrosion protection, such as MB Anticor-
rosion Wax, should be applied to the en-
gine compartment after every engine
cleaning. Before applying, all control link-
age bushings and joints should be lubricat-
ed. The poly-V-belt and all pulleys should
be protected from any wax.
Vehicle washing
Do not use hot water or wash your vehicle
in direct sunlight. Only use a mild car wash
detergent, such as Mercedes-Benz ap-
proved Car Shampoo.
Thoroughly spray the vehicle with a dif-
fused jet of water. Direct only a very weak
spray towards the ventilation intake. Use
plenty of water and rinse the sponge and
chamois frequently.Rinse with clear water and thoroughly dry
with a chamois. Do not allow cleaning
agents to dry on the finish.
Due to the width of the vehicle, fold in ex-
terior rear view mirrors prior to running the
vehicle through an automatic car wash to
prevent damage to the mirrors.
In the winter, thoroughly remove all traces
of road salt as soon as possible.
When washing the underbody, do not for-
get to clean the inner sides of the wheels.Ornamental moldings
For regular cleaning and care of very dirty
chrome-plated parts, use a chrome clean-
er.
Headlamps, side markers, tail lamps,
turn signal lenses
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo,
with plenty of water.
To prevent scratches, never apply strong
force and only use a soft, non-scratchy
cloth when cleaning the lenses. Do not at-
tempt to wipe dirty lenses with a dry cloth
or sponge.
iVehicles with KEYLESS-GO*:
If a door handle is hit by a strong jet of
water, and a SmartKey with
KEYLESS-GO* is in close proximity, i.e.
within approximately 3 ft (1 m), the ve-
hicle could be inadvertently locked or
unlocked.
Page 321 of 474

319 Operation
Vehicle care
Clean the wiper blade inserts with a
clean cloth and detergent solution.Window cleaning
Turn on the wipers and place them in a
vertical position.
For information how to position the wipers
in a vertical position, see “Replacing wiper
blades” (
page 386).
Use a window cleaning solution on all
glass surfaces.
An automotive glass cleaner is recom-
mended.
Warning!
G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch (vehi-
cles with KEYLESS-GO*: Make sure the
vehicle’s on-board electronics have
status0) before cleaning the wiper blades.
Otherwise the wiper motor could suddenly
turn on and cause injury. !Fold the windshield wiper arms back
onto the windshield before turning the
SmartKey in the starter switch.
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.
!The windshield wipers must be in a ver-
tical position before folding them away
from the windshield. They could other-
wise damage the hood.Warning!
G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch (vehi-
cles with KEYLESS-GO*: Make sure the
vehicle’s on-board electronics have
status0) before cleaning the windshield.
Otherwise the wiper motor could suddenly
turn on and cause injury.
!Fold the windshield wiper arm back
onto the windshield before turning the
SmartKey in the starter switch.
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.
Page 344 of 474
342 Practical hintsWhat to do if …Left display
Right display
Possible cause
Possible solution
P
Gear selector
lever to P
You have tried to start the engine with
the KEYLESS-GO* start/stop button
with the gear selector lever not in P.
Place the gear selector lever in position P.
You have tried to turn off the engine
with the KEYLESS-GO* start/stop but-
ton with the gear selector lever not in
P.You have opened the driver’s door
while engine is running with the gear
selector lever not in P.
Page 360 of 474
358 Practical hintsWhat to do if …Left display
Right display
Possible cause
Possible solution
F
Key
Check battery
The batteries in the SmartKey with
KEYLESS-GO* are discharged.
Change the batteries (
page 377).
Don’t forget
key
This message appears (for a maxi-
mum of 60 seconds) if the driver’s
door is opened with the engine shut
off and no SmartKey in the starter
switch.
Message is only a reminder.
Insert SmartKey in the starter switch.
Take the SmartKey with KEYLESS-GO* with
you when leaving the vehicle.
KEYLESS GO
Check system
The KEYLESS-GO* system is mal-
functioning.
Visit an authorized Mercedes-Benz Center as
soon as possible.
KEYLESS-GO
Drive to
workshop
The KEYLESS-GO* system is mal-
functioning.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Page 361 of 474

359 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
F
Key
not detected
The SmartKey with KEYLESS-GO* is
not recognized while the engine is
running because
the SmartKey with
KEYLESS-GO* is not in the vehi-
cle
there is strong radio-frequency
interference
Stop the vehicle as soon as it is safe to do so.
Search for the SmartKey with KEYLESS-GO*
or continue to operate the vehicle with the
SmartKey.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started again af-
ter the engine is stopped.
The SmartKey with KEYLESS-GO* is
momentarily not recognized.
Change the position of the SmartKey with
KEYLESS-GO* in the vehicle.
Operate the vehicle with the SmartKey if
necessary.
Key
still
in vehicle
A SmartKey with KEYLESS-GO* left
in the vehicle was recognized while
locking the vehicle from the out-
side.
Take the SmartKey with KEYLESS-GO* out of
the vehicle.
.
3rd brake lamp
The high mounted brake lamp is
malfunctioning.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Brake lamp
Left
Auxiliary
lamp on!
The left brake lamp is malfunction-
ing. An auxiliary lamp has been
brought into use.
Visit an authorized Mercedes-Benz Center as
soon as possible.