Page 33 of 400

33 Getting started
Adjusting
Manual seat adjustment
1Seat fore and aft adjustment
2Seat cushion tilt
3Seat backrest tilt
4Seat heightSeat fore and aft adjustment
Lift handle1.
Slide seat to the desired position.
Allow handle1 to reengage.
Check for proper engagement before
driving.
Adjust seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely. The posi-
tion should be as far rearward as possible,
consistent with ability to properly operate
controls.Seat cushion tilt
Turn handwheel2 forward or back-
ward until your upper legs are lightly
supported
Seat backrest tilt
Press switch3 in direction of arrow
until your arms are slightly angled
when holding the steering wheel.
Seat height
Press switch4 in direction of arrow
until your legs are lightly supported.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and
the child is not properly secured in the child
restraint.
iWhen moving the seat, be sure that
there are no items in the footwell or
behind the seat. Otherwise you could
damage the seat.
Page 35 of 400

35 Getting started
Adjusting
Power seat* adjustment
The seat adjustment switches are located
in each front door.
1Head restraint height
2Seat height
3Seat cushion tilt
4Seat fore and aft adjustment
5Seat backrest tilt
Turn the SmartKey in the starter switch
to position1 or2 (
page 31).
or
Open the driver’s or front passenger
door.Seat fore and aft adjustment
Press switch forward or backward in
direction of arrow4.
Adjust seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely. The posi-
tion should be as far rearward as possible,
consistent with ability to properly operate
controls.Seat cushion tilt
Press switch up or down in direction of
arrow3 until your upper legs are
lightly supported.
Seat backrest tilt
Press switch forward or backward in
direction of arrow5 until your arms
are slightly angled when holding the
steering wheel.
Seat height
Press switch up or down in direction of
arrow2.
Head restraint height
Press switch up or down in direction of
arrow1.
iWhen moving the seat, be sure that
there are no items in the footwell or
behind the seat. Otherwise you could
damage the seat.
The memory function* (
page 99) lets
you store the setting for the seat posi-
tion together with the settings for the
steering wheel and exterior rear view
mirrors.
Page 46 of 400

46 Getting startedDrivingAfter a cold start, the automatic transmis-
sion shifts at a higher engine revolution.
This allows the catalytic converter to reach
its operating temperature earlier.
For more information on driving, see “Driv-
ing instructions” (
page 239).
Switching on headlamps
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.Exterior lamp switch1Off
2Low beam headlamps on
Turn switch toB.
For more information on headlamps, see
“Lighting” (
page 102).
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of loss of control.!Place the gear selector lever in
positionR only when the vehicle is
stopped in order to avoid damaging the
transmission.!Do not run cold engine at high engine
speeds. Running a cold engine at high
engine speeds may shorten the service
life of the engine.
Warning!
G
Vehicles with automatic transmission:
It is dangerous to shift the gear selector le-
ver out ofP orN if the engine speed is high-
er than idle speed. If your foot is not firmly
on the brake pedal, the vehicle could accel-
erate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal.
Page 51 of 400
51 Getting started
Parking and locking
Switching off headlamps
Turn the exterior lamp switch
toM(
page 46).
For more information on headlamps, see
“Lighting” (
page 102).
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch and lock
the vehicle. Do not leave children unattend-
ed in the vehicle, or with access to an un-
locked vehicle. Children could release the
parking brake and/or move the gear selec-
tor lever from positionP, either of which
could result in an accident and/or serious
injury.
Warning!
G
Getting out of your vehicle with the gear se-
lector lever not fully engaged in positionP is
dangerous. Also, when parked on an incline,
positionP alone may not prevent your vehi-
cle from moving, possibly hitting people or
objects.
Always set the parking brake in addition to
shifting to positionP (manual transmission:
first or reverse gear).
When parked on an incline, turn front wheel
towards the road curb.
Page 72 of 400

72 Safety and SecurityDriving safety systems
Driving safety systemsIn this section you will find information on
the following driving safety systems:
ABS (A
ntilock B
rake S
ystem)
BAS (B
rake A
ssist S
ystem)
ESP (E
lectronic S
tability P
rogram)
4MATIC (Four Wheel Electronic
Traction System)
ABS
The Antilock Brake System (ABS) regulates
the brake pressure so that the wheels do
not lock during braking. This allows you to
maintain the ability to steer your vehicle.
The ABS is functional above a speed of ap-
proximately 5 mph (8 km/h) independent
of road surface conditions.
On slippery road surfaces, the ABS will
respond even with light brake pressure.
The- indicator lamp in the instrument
cluster (
page 22) comes on when you
turn the SmartKey in the starter switch to
position2. It goes out when the engine is
running.
iIn winter operation, the maximum
effectiveness of the ABS, ESP and
4MATIC (if so equipped) is only
achieved with winter tires (M + S tires),
or snow chains as required.
Warning!
G
The following factors increase the risk of
accidents:
Excessive speed, especially in turns
Wet and slippery road surfaces
Following another vehicle too closely
The ABS, BAS, ESP and 4MATIC (if so
equipped) cannot reduce this risk.
Always adjust your driving style to the
prevailing road and weather conditions.
Warning!
G
Do not pump the brake pedal. Use firm,
steady brake pedal pressure instead. Pump-
ing the brake pedal defeats the purpose of
the ABS and significantly reduces braking
effectiveness.
Page 251 of 400

251 Operation
At the gas station
Check regularly and before a long trip
1Coolant level
For more information on coolant, see
“Coolant level” (
page 257).
2Brake fluid (fuse box cover removed)
Removing fuse box cover
(
page 333).
3Windshield washer and headlamp
cleaning system*
For more information on filling up the
washer reservoir, see “Windshield
washer system and headlamp cleaning
system*” (
page 259).Engine oil level
For more information on engine oil level,
see “Engine oil” (
page 253).
Opening hood (
page 252).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (page 310).
Exterior lamp switch (page 102).
Tire inflation pressure
More information on tire inflation pressure
(
page 261).
!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 immediately.
Notify an authorized Mercedes-Benz
Center immediately. Do not add brake
fluid as this will not solve the problem.
For more information, see “Practical
hints” (
page 275).
Page 293 of 400

293 Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
A
RESERVE FUEL
GO TO GAS STATION!
The fuel level has dropped below the
reserve mark.
Refuel at the next gas station
(page 249).
CHECK GAS CAP!
SEE OPERATOR’S MANUAL
The fuel cap is not closed tightly.
Check the fuel cap (
page 249).
Y
HOOD OPEN!
You are driving with the hood open.
Close the hood (
page 252).
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.
.
3RD BRAKE LIGHT
CHECK LIGHT!
The high mounted brake lamp is
malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
AUTOM. LIGHT ON
REMOVE KEY!
SmartKey in starter switch position1
or2.
Remove SmartKey from the starter
switch.
BRAKE LIGHT
DRIVE TO WORKSHOP!
Brake lamp illumination is delayed or
lamp is permanently on.
Visit an authorized Mercedes-Benz
Center as soon as possible.
BRAKE LIGHT, L
CHECK LIGHT!
The left brake lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
BRAKE LIGHT, R
CHECK LIGHT!
The right brake lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
DISPLAY MALFUNCTION
VISIT WORKSHOP!
The display for the lamps or the system is
malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 311 of 400

311 Practical hints
Replacing bulbs
Rear lamps Notes on bulb replacement
12 volt bulbs of the same type and
with the specified watt rating.
Switch lights off before changing a bulb
to prevent short circuits.
Always use a clean lint-free cloth when
handling bulbs.
Your hands should be dry and free of oil
and grease.
If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.
Have the LEDs and bulbs for the
following lamps replaced by an
authorized Mercedes-Benz Center:
Additional turn signals in the
exterior rear view mirrors
High mounted brake lamp
Xenon lamps
Front fog lamps
Lamp
Type
7
High mounted brake
lamp
LED
8
Brake lamp
P21W
9
Turn signal lamp
PY 21 W
a
Backup lamp
P21W
b
Tail, parking,
standing and side
marker lamp
P21/5W
c
License plate lamps
C5W
d
Rear fog lamp,
driver’s side
P21/4W
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot.
Allow the lamp to cool down before
changing a bulb.
Halogen lamps contain pressurized gas.
A bulb can explode if you
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.