Page 42 of 474

41 Getting started
Adjusting
To lock the steering column, push 
handle1 all the way in until it 
engages.
The steering wheel is locked into posi-
tion again.
Make sure the steering wheel is 
securely locked by trying to move it up 
and down, and in and out before driving 
off.Steering wheel adjustment, electrical*
The lever for the electrical steering wheel 
adjustment is located on the lower left of 
the steering column.
1Adjusting steering column, in or out
2Adjusting steering column, up or down
Switch on the ignition (
page 33).
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 that all the displays (including mal-
function and indicator lamps) on the in-
strument cluster are clearly visible.
!Do not drive the vehicle until you have 
properly locked the steering column.
iThe memory function* (
page 115) 
lets you store the settings for the pow-
er seat*, the steering wheel adjust-
ment (electrical*) and the exterior rear 
view mirrors. 
     
        
        Page 53 of 474

52 Getting startedDriving
Switching on headlamps
Low beam 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 exterior lamp switch to 
positionB.
The low beam headlamp indicator 
lampB in the instrument cluster 
comes on (
page 24).High beam
The combination switch is located on the 
left of the steering column.
Combination switch1High beam
2High beam flasher
Push combination switch in direction of 
arrow1.
The high beam headlamp indicator 
lampA in the instrument cluster 
comes on (
page 24).
For more information on headlamps, see 
“Lighting” (
page 118).
Warning!
G
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 60 of 474

59 Getting started
Parking and locking
Switching off headlamps
Turn exterior lamp switch 
toM(
page 52).
For more information, see “Lighting” 
(
page 118).
Turning off engine 
Manual transmission: Move the gear-
shift lever into first or reverse gear.
Automatic transmission*: Place the 
gear selector lever in positionP.
Turn the SmartKey in the starter switch 
to position0.
Remove the SmartKey from the starter 
switch.
The immobilizer is activated.
Releasing seat belts
Press the seat belt release button 
(page 46).
Allow the retractor to completely 
rewind the seat belt by guiding the 
latch plate.
iAlways set the parking brake in addi-
tion to shifting to positionP (manual 
transmission: first or reverse gear).
On slopes, turn the front wheels 
towards the road curb. iVehicles with automatic transmission: 
The SmartKey can only be removed 
from the starter switch with the gear 
selector lever in positionP.
!Make sure the seat belt retracts fully so 
that the seat belt and/or latch plate 
cannot get caught or pinched in the 
door or in the seat mechanism. This 
can damage the seat belt and impair 
the effectiveness of the seat belt, 
and/or cause damage to the door 
and/or door trim panel. Such damage 
is not covered by the Mercedes-Benz 
Limited Warranty.
Damaged seat belts must be replaced. 
Contact an authorized Mercedes-Benz 
Center. 
     
        
        Page 61 of 474

60 Getting startedParking and lockingLocking
Exit the vehicle and close all doors.
Press the lock button‹ on the 
SmartKey (
page 32).
With the hood, trunk and all doors 
closed, all turn signal lamps flash three 
times. The locking knobs in the doors 
move down. 
The anti-theft alarm system* is armed.
For more information, see “Locking and 
unlocking” (
page 98).
Warning!
G
To prevent possible personal injury, always 
keep hands and fingers away from the door 
openings when closing the doors. Be espe-
cially careful when small children are 
around.
Before closing doors, make sure there is no 
possibility of someone getting caught in a 
door during closing.
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.iWith the SmartKey removed and the 
driver’s door open, a warning sounds if 
the vehicle’s exterior lamps are not 
switched off.
The message 
Switch off lights
 ap-
pears in the multifunction display. 
     
        
        Page 68 of 474

67 Safety and Security
Occupant safety
When you sell your vehicle we strongly 
urge you to give notice to the subsequent 
owner that it is equipped with an SRS by 
alerting them to the applicable section in 
the Operator’s Manual.Front air bags
1Driver’s air bag
2Passenger front air bag
Driver and front passenger air bags are 
deployed
in the event of certain frontal impacts
if impact exceeds a preset deployment 
threshold
independently of the front side impact 
air bags and/or rear side impact 
air bags*
In addition, improper repair work on the 
SRS creates a risk of rendering the SRS 
inoperative or causing unintended air 
bag deployment. Work on the SRS must 
therefore only be performed by qualified 
technicians. Contact an authorized 
Mercedes-Benz Center.
For your protection and the protection 
of others, when scrapping the air bag 
unit or emergency tensioning device, 
our safety instructions must be fol-
lowed. These instructions are available 
from your authorized Mercedes-Benz 
Center.
Given the considerable deployment 
speed, required inflation volume, and 
the textile structure of the air bags, 
there is the possibility of abrasions or 
other, potentially more serious injuries 
resulting from air bag deployment.
iThe front air bags in this vehicle have 
been designed to inflate in two stages. 
This allows the air bag to have different 
rates of inflation that are based on the 
rate of relevant vehicle deceleration as 
assessed by the air bag control unit.
On the front passenger side, the front 
air bag deployment is additionally influ-
enced by the passenger’s weight cate-
gory as identified by the Occupant 
Classification System (OCS) 
(page 77).
The lighter the front passenger side 
occupant, the higher the vehicle decel-
eration rate required for the second 
stage inflation of the air bag.  
     
        
        Page 88 of 474

87 Safety and Security
Driving safety systems
Driving safety systems
In 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 to light brake pressure.
The- indicator lamp in the instrument 
cluster (
page 24) comes on when you 
switch on the ignition. 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 
(
page 336), or snow chains as re-
quired.
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 89 of 474

88 Safety and SecurityDriving safety systemsBraking
At the instant one of the wheels is about to 
lock up, a slight pulsation can be felt in the 
brake pedal, indicating that the ABS is in 
the regulating mode.
Keep firm and steady pressure on the 
brake pedal while experiencing the 
pulsation.
Continuous steady brake pedal pressure 
yields the advantages provided by the ABS, 
namely braking power and ability to steer 
the vehicle.
The pulsating brake pedal can be an 
indication of hazardous road conditions 
and functions as a reminder to take extra 
care while driving.Emergency brake maneuver
Keep continuous full pressure on the 
brake pedal.
For more information, see “Practical hints” 
(
page 350) and (
page 360).
BAS
The Brake Assist System (BAS) operates in 
emergency situations. If you apply the 
brakes very quickly, the BAS automatically 
provides full brake boost, thereby poten-
tially reducing the braking distance. Apply 
continuous full braking pressure until the 
emergency braking situation is over. The 
ABS will prevent the wheels from locking.
When you release the brake pedal, the 
brakes function again as normal. The BAS 
is then deactivated.
Warning!
G
The ABS cannot prevent the natural laws of 
physics from acting on the vehicle, nor can 
it increase braking or steering efficiency 
beyond that afforded by the condition of the 
vehicle brakes and tires or the traction af-
forded. The ABS cannot prevent accidents, 
including those resulting from excessive 
speed in turns, following another vehicle too 
closely, or hydroplaning. Only a safe, atten-
tive, and skillful driver can prevent acci-
dents. The capabilities of an ABS equipped 
vehicle must never be exploited in a reck-
less or dangerous manner which could jeop-
ardize the user’s safety or the safety of 
others.
Warning!
G
If the BAS is malfunctioning, the brake sys-
tem is still functioning normally, but without 
the additional brake boost available that 
BAS would normally provide in an emergen-
cy braking maneuver. Therefore, the braking 
distance may increase. 
     
        
        Page 98 of 474
97 Controls in detail
Locking and unlocking
Seats
Memory function*
Lighting
Instrument cluster
Control system
Manual transmission
Automatic transmission*
Good visibility
Climate control
Automatic climate control* (Canada only)
Audio system
Power windows
Power tilt/sliding sunroof*
Driving systems
Loading
Useful features