Page 287 of 474

286 OperationDriving instructions
Tires
Treadwear indicators (TWI) are required by
law. These indicators are located in six
places on the tread circumference and
become visible at a tread depth of
approximately
1/16
in (1.6 mm), at which
point the tire is considered worn and
should be replaced.The treadwear indicator appears as a solid
band across the tread.
Specified tire inflation pressures must be
maintained. This applies particularly if the
tires are subjected to high loads (e.g. high
speeds, heavy loads, high ambient temper-
atures).
Manual transmission: Move gearshift
lever to neutral position (no gear select-
ed).
Firmly depress parking brake pedal.
Automatic transmission*: Move the
gear selector lever to positionP.
Slowly release brake pedal.
When parked on an incline, turn front
wheels towards the road curb.
Turn the SmartKey in the starter switch
to position0 and remove the SmartKey
from the starter switch.
Take the SmartKey and lock vehicle
when leaving.
Warning!
G
If you feel a sudden significant vibration or
ride disturbance, or you suspect that possi-
ble damage to your vehicle has occurred,
you should turn on the hazard warning flash-
ers, carefully slow down, and drive with cau-
tion to an area which is a safe distance from
the road.
Inspect the tires and the vehicle underbody
for possible damage. If the vehicle or tires
appear unsafe, have the vehicle towed to
the nearest Mercedes-Benz Center or tire
dealer for repairs.
Warning!
G
Although the applicable federal motor
vehicle safety laws consider a tire to be
worn when the treadwear indicators (TWI)
become visible at approximately
1/16in
(1.6 mm), we recommend that you do not
allow your tires to wear down to that level.
As tread depth approaches
1/8in (3 mm),
the adhesion properties on a wet road are
sharply reduced.
Depending upon the weather and/or road
surface (conditions), the tire traction varies
widely.
Page 295 of 474

294 OperationAt the gas stationRefueling
The fuel filler flap is located on the
right-hand side of the vehicle towards the
rear. Locking/unlocking the vehicle with
the SmartKey automatically locks/unlocks
the fuel filler flap.1To open the fuel filler flap
2To insert the fuel filler cap
3Supplemental tire inflation pressure in-
formation
Turn the engine off by turning the
SmartKey to position0.
Remove the SmartKey from the starter
switch.
Open the fuel filler flap by pushing at
the point indicated by arrow1.
The fuel filler flap springs open.
Turn fuel cap counterclockwise and
hold on to it until possible pressure is
released.
Take off cap and set it in direction of
arrow2 in the recess on the fuel filler
flap.
To prevent fuel vapors from escaping
into open air, fully insert filler nozzle
unit.
Only fill your tank until the filler nozzle
unit cuts out – do not top up or
overfill.
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!
Warning!
G
Overfilling of the fuel tank may create
pressure in the system which could cause a
gas discharge. This could cause the gas to
spray back out when removing the fuel
pump nozzle, which could cause personal
injury.
Page 346 of 474

345 Operation
Vehicle care
Cleaning the windows and the wiper
blades
Switch on the ignition (
page 33).
Turn combination switch to wiper
settingII (
page 53).
With wiper arms in vertical position,
switch off the ignition (
page 33).
Fold the wiper arms forward until they
snap into place.
Clean the wiper blade inserts with a
clean cloth and detergent solution.
Use a soft, clean cloth and a mild win-
dow cleaning solution on all outside
and inside glass surfaces.
An automotive glass cleaner is recom-
mended.
!The windshield wipers must be in a ver-
tical position before folding them away
from the windshield. They could other-
wise damage the hood.
Never open the hood when the wiper
arms are folded forward.
Warning!
G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch before
cleaning the windshield and/or 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.!To clean the window interior, do not
use a dry cloth, abrasives, solvents or
cleaners containing solvents. Do not
touch the inside of the front, rear or
side windows with hard objects such as
an ice scraper or ring. Doing so may
damage the windows.
Page 377 of 474
376 Practical hintsWhat to do if …Display symbol
Display message
Possible cause/consequence
Possible solution
4
Check gas cap.
See Operator’s Manual
A loss of pressure has been detected in
the fuel system. The fuel cap may not be
closed properly or the fuel system may be
leaky.
Check the fuel cap (
page 294).
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.
Y
Hood open
You are attempting to drive with the hood
open.
Close the hood (
page 297).
I
Remove key.
You have forgotten to remove the
SmartKey.
Remove the SmartKey from the starter
switch.
Replace key
Drive to workshop
No additional code available for
SmartKey.
Change the SmartKey.
Page 380 of 474

379 Practical hints
What to do if …
Display symbol
Display message
Possible cause/consequence
Possible solution
.
Low beam right
The right low beam lamp is
malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Visit an authorized Mercedes-Benz
Center as soon as possible.
Parking lamp
left front
The left front parking lamp is
malfunctioning.
Replace the bulb as soon as possible.
Parking lamp
right front
The right front parking lamp is
malfunctioning.
Replace the bulb as soon as possible.
Rear fog lamp
Substit. bulb on
The rear fog lamp is malfunctioning.
A substitute bulb is being used.
Replace the bulb as soon as possible.
Switch off lights
Headlamps have been turned on with the
driver’s door opened and the SmartKey
removed from the starter switch.
Switch off the headlamps.
Taillamp left
Substit. bulb on
The left tail lamp is malfunctioning.
A substitute bulb is being used.
Replace the bulb as soon as possible.
Taillamp right
Substit. bulb on
The right tail lamp is malfunctioning.
A substitute bulb is being used.
Replace the bulb as soon as possible.
Page 383 of 474

382 Practical hintsWhat to do if …Display symbol
Display message
Possible cause/consequence
Possible solution
K
Close slid./pop-up
sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding portion of the
tilt/sliding sunroof* open.
Close the tilt/sliding sunroof*
(page 244).
J
Close slid./pop-up
sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the tilting portion of the
tilt/sliding sunroof* open.
Close the tilt/sliding sunroof*
(page 244).
L
Tele Aid malfunction.
Drive to workshop
One or more main functions of the Tele
Aid system* are malfunctioning.
Have the Tele Aid system* checked by
an authorized Mercedes-Benz Center.
t
Function unavailable
This display appears if buttont
ors on the multifunction steering
wheel is pressed and the vehicle is not
equipped with a telephone*.
Ê
Trunk open
You are attempting to drive with the trunk
open.
Close the trunk.
W
Washer fluid
please refill
The fluid level has dropped to
about
1/3of total reservoir capacity.
Add washer fluid (
page 303).
Page 390 of 474
389 Practical hints
Unlocking/locking in an emergency
Unlocking/locking in an emergency
Unlocking the vehicle
If you are unable to unlock the vehicle with
the SmartKey, open the driver’s door and
the trunk using the mechanical key. Removing the mechanical key
1Mechanical key locking tab
2Mechanical key
Move locking tab1 in direction of
arrow.
Slide mechanical key2 out of the
housing.Unlocking the driver’s door
1Unlocking
Insert the mechanical key into the
driver’s door lock until it stops.
Turn the mechanical key counterclock-
wise to position1.
The driver’s door is unlocked.
iUnlocking and opening the driver’s
door and/or the trunk with the
mechanical key will trigger the
anti-theft alarm system*.
To cancel the alarm, do one of the
following:
Press buttonŒ or‹ on the
SmartKey.
Insert the SmartKey in the starter
switch.
Page 394 of 474
393 Practical hints
Opening/closing in an emergency
Opening/closing in an emergency
Power tilt/sliding sunroof*
You can open or close the tilt/sliding
sunroof manually should an electrical
malfunction occur.
The tilt/sliding sunroof drive is located
behind the lens1 of the interior overhead
light.
Remove SmartKey from the starter
switch.
Pry off lens1 using a flat blade
screwdriver.
Slide both locking tabs2 in direction
of the arrows.
Lower the rear of the cover and
remove.
Remove the cover.
Take the crank3 out of the Operator’s
Manual pouch.
Insert crank3 through hole on the left
side.
Turn crank3 clockwise to:
slide sunroof closed
raise sunroof at the rear
Turn crank3 counterclockwise to:
slide sunroof open
lower sunroof at the rear
iDo not disconnect electrical
connectors.
iTurn crank3 slowly and smoothly.
The tilt/sliding sunroof must be
synchronized after being operated
manually (
page 246).