Page 26 of 384
26 At a glanceCenter consoleLower part
Item
Page
1
KEYLESS-GO* start / stop
button
33, 43
2
Selector lever for
automatic transmission
43,
145
3
PASSENGER AIRBAG OFF
indicator lamp
65
4
Thumbwheel for setting
distance in Distronic*
187
5
Distance warning func-
tion* on / off switch
187
6
Program mode selector for
automatic transmission
147
Page 32 of 384

32 Getting startedUnlockingUnlocking with KEYLESS-GO*
Vehicles with KEYLESS-GO*: in addition to
the two SmartKeys with remote controls
and removable mechanical key, your vehi-
cle comes equipped with two KEY-
LESS-GO* cards.
The function of the SmartKey overrules the
KEYLESS-GO function.If you have the KEYLESS-GO function, your
vehicle checks whether the KEYLESS-GO
card is valid when you grasp the door han-
dle. If your KEYLESS-GO card is valid, the
doors will unlock, and you can open them.
Grasp the door handle.
All turn signal lamps blink once. The
locking knobs on the doors move up.
Pressing the KEYLESS-GO start/stop but-
ton on the selector lever corresponds to
turning the key to the various starter
switch positions.
iTo unlock the vehicle, the KEYLESS-GO
card must be outside the vehicle, no
further than approx. 3 feet (1 meter)
away from the door.
Warning!
G
When leaving the vehicle, always take the
key and the KEYLESS-GO card with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.
Page 33 of 384
33 Getting started
Unlocking
1KEYLESS-GO start/stop button
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have status 0 (as with key re-
moved).Make sure the gear selector lever is set
toP.
Do not depress the brake pedal.
Position 1
Press the KEYLESS-GO start/stop but-
ton once.
This supplies power to some electrical
consumers, such as seat adjustment.Ignition (or position 2)
Press the KEYLESS-GO start/stop but-
ton twice in immediate succession.
This supplies power to all electrical
consumers. All the lights in the instru-
ment cluster light up.
More information can be found in the
“Controls in detail” section (
page 83).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 43).
iIf you now press the KEYLESS-GO
start/stop button twice, the power
supply is switched off.
iIf you now press the KEYLESS-GO
start/stop button once, the power sup-
ply is again switched off.
Page 35 of 384
35 Getting started
Adjusting
Seat adjustment
The seat adjustment switches are located
in each door.
1Head restraint height
2Seat height
3Seat cushion tilt
4Seat cushion depth
5Seat fore and aft adjustment
6Seat backrest tilt
Turn the key in the starter switch to
position1or2.
or
Press the KEYLESS GO* start/stop
button once or twice.
or
Open the driver’s or passenger door.
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.
Page 37 of 384

37 Getting started
Adjusting
More information can be found in the
“Controls in detail” section (
page 97).
Steering wheel Steering wheel adjustment
The stalk for steering wheel adjustment is
located on the steering column (lower left).
1Steering column, lengthen or shorten
2Steering column, height
Turn the key in the starter switch to
position1or2.
or
Press the KEYLESS GO* start/stop
button once or twice.
or
Open the driver’s or passenger door.
iThe front passenger seat head restraint
automatically lowers after a few sec-
onds when the front passenger seat is
not occupied.This improves the driver's
outward view as well as the forward
view from the rear passenger compart-
ment.
When the front passenger seat is occu-
pied again, the front passenger head
restraint returns to the last set position
within a few seconds.
If the front passenger seat was moved
fore or aft while not being occupied,
the front passenger seat head restraint
returns to a position that corresponds
best with the seat's axial position when
the seat is occupied again.
Warning!
G
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing could cause the driver to lose control of
the vehicle.
When leaving the vehicle, always remove the
key from the starter switch, and take the
KEYLESS-GO
* card with you.
The steering wheel adjustment feature can
also be operated with the driver’s door
open. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and/or serious
personal injury.
Page 43 of 384

43 Getting started
Driving
Automatic transmissionGearshift pattern for automatic
transmissionPPark position with selector lever lock
RReverse gear
NNeutral
DDrive position
Make sure that the gear selector lever
is set toP.Starting with the SmartKey
Turn the key in the starter switch to
position3 and hold until the engine
starts (
page 31).
Firmly depress the brake pedal.
The selector lever lock is released.
For information on turning off the engine
with the SmartKey, see “Turning off engine
with the SmartKey” (
page 51).
Starting with KEYLESS-GO*
You can start your vehicle without a key
using the KEYLESS-GO start/stop button
on the gear selector lever.1KEYLESS-GO start/stop button
Firmly depress the brake pedal during
the starting procedure. Do not depress
accelerator.
The selector lever lock is released.
Press KEYLESS-GO start/stop
button1 once.
The engine starts automatically.
For information on turning off the engine
with KEYLESS-GO, see “Turning off engine
with KEYLESS-GO” (
page 51).
iYou can also use the “touch-start”
function. Turn the key to position3 and
release it again immediately. The en-
gine then starts automatically.
Page 48 of 384

48 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 over 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 242).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 leaves, snow, etc. block the wind-
shield wipers, switch off the wipers.
For safety reasons, withdraw key
from starter switch. Remove block-
age.
Turn the windshield wipers on
again.
If windshield wipers fail to function at
all in switch positionI:
Set the combination switch to the
next highest wiper speed.
Have the windshield wipers
checked at the nearest authorized
Mercedes-Benz Center.
Page 49 of 384

49 Getting started
Parking and locking
Parking and locking
You have now completed your first drive.
You have properly stopped and parked
your vehicle. End your drive as follows:Warning!
G
Wait until the vehicle is stationary before re-
moving the key from the starter switch. The
vehicle cannot be steered when the key is
removed.Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake or steer the ve-
hicle.
Warning!
G
Do not park this vehicle in areas where com-
bustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
To reduce the risk of personal injury as a re-
sult of inadvertent vehicle movement, be-
fore turning off the engine and leaving the
vehicle always:
Keep right foot firmly on brake pedal.
Firmly depress parking brake pedal.
Move the selector lever to positionP.
Slowly release brake pedal.
When parked on an incline, turn front
wheels towards the road curb.
Turn the key to starter switch position0
and remove, or press start / stop button
(vehicles with KEYLESS-GO*).
Take the key or the KEYLESS-GO* card
and lock vehicle when leaving.