Page 37 of 481

36 Getting startedUnlockingStarter switch positions SmartKey
Starter switch0For removing the SmartKey
The steering is locked when the
SmartKey is removed from the starter
switch.
1Power supply for some electrical con-
sumers, such as seat adjustment.2Ignition (power supply for all electrical
consumers) and driving position.
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary.
If a lamp in the instrument cluster re-
mains on after starting the engine or
comes on while driving, refer to see
“Lamps in instrument cluster”
(
page 362).
3Starting position.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.
Page 38 of 481

37 Getting started
Unlocking
For information on starting the engine, see
(page 50).
iWhen you switch on ignition, the indi-
cator and warning lamps (except high
beam headlamp indicator lamp and
turn signal indicator lamps unless acti-
vated) in the instrument cluster come
on. The indicator and warning lamps
(except high beam headlamp indicator
lamp and turn signal indicator lamps if
activated) will go out when the engine
is running. This indicates that the re-
spective systems are operational.iVehicles with automatic transmission*:
The SmartKey can only be removed
from the starter switch with the gear
selector lever in positionP.
!If the SmartKey cannot be turned in the
starter switch, the vehicle battery may
not be sufficiently charged.
Check the vehicle battery and
charge it if necessary (
page 421).
Get a jump start (
page 424).
To prevent accelerated vehicle battery
discharge or a completely discharged
vehicle battery, always remove the
SmartKey from the starter switch when
the engine is not in operation.
Page 41 of 481

40 Getting startedAdjustingSeat height
Pull or push handle2 up or down and
adjust the seat height until your legs
are slightly supported.
Backrest tilt
Pull handle3 and adjust the backrest
until your arms are slightly angled
when holding the steering wheel.
Release handle3 when the desired
backrest tilt is reached.
When you hear an audible click, the
backrest is again fixed into place.
For more information, see “Seats”
(
page 104).Power seat* adjustment
The seat adjustment switches are located
on the outer side of each seat.
1Seat fore and aft adjustment
2Seat height
3Backrest tilt
4Seat cushion tilt
Switch on the ignition (
page 36).
or
Open the respective door.Seat fore and aft adjustment
Press the horizontal switch forward or
backward in direction of arrow1.
Adjust seat to a comfortable seating
position that still allows you to reach
the accelerator / brake pedal safely.
The position should be as far rearward
as possible, consistent with ability to
properly operate controls.
Seat height
Press the horizontal switch up or down
in direction of arrow2 and adjust the
seat height until your legs are slightly
supported.iThe memory function* (
page 107)
lets you store the settings for power
seats*, steering wheel adjustment
(electrical)*, and exterior rear view
mirrors.
Page 44 of 481

43 Getting started
Adjusting
Steering wheel adjustment, electrical*
The lever for the electrical steering wheel
adjustment is located on the steering col-
umn (lower left).
1Adjusting steering column, in or out
2Adjusting steering column, up or down
Switch on the ignition (
page 36).
or
Open the driver’s door.Adjusting steering column in or out
Move the lever in direction of
arrows1 until a comfortable steering
wheel position is reached with your
arms slightly bent at the elbow.
Adjusting steering column up or down
Move the lever in direction of
arrows2.
Make sure your legs can move freely
and all the displays (including malfunc-
tion and indicator lamps) on the instru-
ment cluster are clearly visible.Easy-entry/exit feature*
This feature allows for easier entry into and
exit from the vehicle.
The easy-entry/exit feature can be activat-
ed or deactivated in the
Convenience
submenu of the control system
(
page 147).
iThe memory function* (
page 107)
lets you store the settings for the steer-
ing wheel together with the settings for
the exterior rear view mirrors and the
driver’s seat position.
Page 45 of 481

44 Getting startedAdjusting
With the easy-entry/exit feature activated,
the steering wheel will return to its last set
position when you:
close the driver’s door with the ignition
switched on,
or
insert the SmartKey into the starter
switch with the driver’s door closed.With the easy-entry/exit feature activated,
the steering wheel tilts upwards when you:
remove the SmartKey from the starter
switch,
or
open the driver’s door with the
SmartKey in starter switch
position0or1.
Warning!
G
You must make sure no one can become
trapped or injured by the moving steering
wheel when the easy-entry/exit feature is
activated.
To cancel steering wheel movement, do one
of the following:
Move steering column lever*
(page 43).
Press one of the memory position but-
tons* or the memory buttonM*
(page 107).
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Children could open the driver’s door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.
iThe last set steering wheel position is
stored when
the ignition is switched off
the position is stored in memory
(page 107)
iIf the current position for the steering
wheel is in the uppermost tilt position,
the steering wheel will no longer be
able to move upward when the
easy-entry/exit feature is activated.
The adjustment procedure is briefly in-
terrupted when the engine is started.
Page 47 of 481

46 Getting startedAdjustingThe switches are located on the lower part
of the center console.
1Driver’s side exterior rear view mirror
2Adjustment switch
3Passenger-side exterior rear view
mirror
Switch on the ignition (
page 36).
Press switch1 or3 to select the
respective exterior rear view mirror.
The indicator lamp in the respective
switch comes on. If you do not adjust
the selected exterior rear view mirror
by pressing adjustment switch2, the
indicator lamp in the switch will switch
off automatically after approximately
10 seconds.
Press adjustment switch2 forward,
rearward, left, or right according to the
desired setting.For more information, see “Storing exterior
rear view mirror parking position (parking
aid)” (
page 108).
!If an exterior rear view mirror housing
is forcibly pushed forward (hit from the
rear) or rearward (hit from the front),
reposition it by applying firm pressure
until it snaps into place. The exterior
rear view mirror housing is now proper-
ly positioned and you can adjust the
mirror normally.
iThe memory function (
page 107) lets
you store the settings for the exterior
rear view mirrors together with the set-
tings for the steering wheel and the
driver’s seat position.
iAt low ambient temperatures, the exte-
rior rear view mirrors will be heated au-
tomatically.!Before driving the vehicle through an
automatic car wash, fold the exterior
mirrors in. Otherwise they may get
damaged.
Page 57 of 481

56 Getting startedDriving
Press combination switch in direction
of arrow1 or2.
The corresponding turn signal indicator
lampKorL in the instrument
cluster flashes (
page 24).
The combination switch resets auto-
matically after major directional chang-
es.
Windshield wipers
The combination switch is located on the
left of the steering column.Combination switch1Single wipe
Wiping with windshield washer fluid
2Switching on windshield wipers
Switch on the ignition (
page 36).Switching on windshield wipers
Turn the combination switch to the de-
sired position depending on the inten-
sity of the rain.
0Windshield wipers off
IIntermittent wiping
IINormal wiper speed
IIIFast wiper speed
iTo signal minor directional changes,
press combination switch only to point
of resistance and release. The corre-
sponding turn signals will flash three
times.
!Do not operate the windshield wipers
when the windshield is dry. Dust that
accumulates on a windshield might
scratch the glass and/or damage the
wiper blades when wiping occurs on a
dry windshield. If it is necessary to op-
erate the wipers in dry weather condi-
tions, always operate the windshield
wipers with windshield washer fluid
(page 57).
Page 59 of 481

58 Getting startedDriving
Problems while driving
The engine runs erratically and misfires
An ignition cable may be damaged.
The engine electronics may not be op-
erating properly.
Unburned gasoline may have entered
the catalytic converter and damaged it.
Give very little gas.
Have the problem repaired by an au-
thorized Mercedes-Benz Center as
soon as possible.
The coolant temperature is above
248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.
Stop the vehicle as soon as possible
and turn off the engine. Allow engine
and coolant to cool.
Check the coolant level and add cool-
ant if necessary (
page 313).In case of accident
If the vehicle is leaking gasoline:
Do not start the engine under any cir-
cumstances.
Notify local fire and/or police authori-
ties.
If the extent of the damage cannot be de-
termined:
Notify an authorized Mercedes-Benz
Center.
If no damage can be determined on the
Major assemblies
Fuel system
Engine mount
Start the engine in the usual manner.
!If anything blocks the windshield wip-
ers (leaves, snow, etc.), switch them off
immediately.
For safety reasons, stop the vehicle
in a safe location, turn off the en-
gine and remove the SmartKey
from the starter switch before at-
tempting to remove any blockage.
Remove blockage.
Turn the windshield wipers on
again.
If the windshield wipers fail to function
at all with combination switch in
positionI,
set combination switch to the next
higher wiper speed
have the windshield wipers
checked at the nearest authorized
Mercedes-Benz Center