
G
WARNING
Electronic devices on the front-passenger
seat can affect the function of the Baby-
Smart™ air bag deactivation system, for
example:
R Laptop
R Mobile phone
R Transponder cards such as ski passes or
access passes
The front-passenger air bag could deploy acci-
dentally or not function as intended during an accident. This poses an increased risk of
injury or even fatal injury.
Do not place any of the devices mentioned
above or similar devices on the front-
passenger seat. Be aware of the status of the front-passenger front air bag both before andduring the journey. Child restraint system on the front-
passenger seat
General notes Accident statistics show that children
secured in the rear seats are safer than chil-
dren secured in the front-passenger seat. For this reason, Mercedes-Benz strongly advises
that you install the child restraint system on a
rear seat.
If it is absolutely necessary to install a child
restraint system on the front-passenger seat,
always observe the information on the "Baby- Smart™ air bag deactivation system"
(Y page 56).
You can thus avoid the risks that could arise
as a result of:
R a child restraint system that is not detected
by the BabySmart™ air bag deactivation
system sensor system
R the unintentional deactivation of the front-
passenger front air bag
R the unsuitable positioning of the child
restraint system, e.g. too close to the dash- board Rearward-facing child restraint system If it is absolutely necessary to install a rear-
ward-facing child restraint system on the
front-passenger seat, always make sure that
the front-passenger front air bag is deactiva-
ted. Only if the PASSENGER AIR BAG OFF
indicator lamp is permanently lit (Y page 42)
is the front-passenger front air bag deactiva-
ted.
Always observe the child restraint system
manufacturer's installation and operating
instructions.
Forward-facing child restraint system If it is absolutely necessary to install a
forward-facing child restraint system on the
front-passenger seat, always move the front-
passenger seat as far back as possible. The
entire base of the child restraint system must always rest on the seat cushion of the front-
passenger seat. The backrest of the child
restraint system must lie as flat as possible
against the backrest of the front-passenger
seat. The child restraint system must not
touch the roof or be subjected to a load by the
head restraint. Adjust the angle of the seat
backrest and the head restraint position
accordingly. Always make sure that the shoul-
der belt strap is correctly routed from the
vehicle belt sash guide to the shoulder belt
guide on the child restraint system. The shoul-
der belt strap must be routed forwards and
downwards from the belt sash guide. If nec-
essary, adjust the belt sash guide and the
front-passenger seat accordingly.
Always observe the child restraint system
manufacturer's installation and operating
instructions. 58
Children in the vehicleSafety

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
i Read the information on qualified special-
ist workshops: (Y page 24). Correct driver's seat position
:
Steering wheel
; Seat belts
= Backrest
X Observe the safety guidelines on seat
adjustment (Y page 85).
X Make sure that seat =is adjusted prop-
erly.
Electrical seat adjustment (Y page 86)
When adjusting the seat, make sure that:
R you are as far away from the driver's air bag
as possible.
R you are sitting in a normal upright position. R
you can fasten the seat belt properly.
R you have moved the backrest to an almost
vertical position.
R you have set the seat cushion angle so that
your thighs are gently supported.
R you can depress the pedals properly.
X Check whether the head restraint is adjus-
ted properly (Y page 86).
When doing so, make sure that you have
adjusted the head restraint so that the back
of your head is supported at eye level by the center of the head restraint.
X Observe the safety guidelines on steering
wheel adjustment (Y page 85).
X Make sure that steering wheel :is adjus-
ted properly.
Adjusting the steering wheel electrically
(Y page 91).
When adjusting the steering wheel, make
sure that:
R you can hold the steering wheel with your
arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the instru-
ment cluster clearly.
X Observe the safety guidelines for seat belts
(Y page 43).
X Check whether you have fastened seat
belt ;properly (Y page 44).
The seat belt should:
R fit snugly across your body
R be routed across the middle of your shoul-
der
R be routed in your pelvic area across the hip
joints
X Before starting off, adjust the rear-view mir-
ror and the exterior mirrors in such a way
that you have a good view of road and traf-
fic conditions (Y page 93).
X Vehicles with a memory function: save
the seat, steering wheel and exterior mirror
settings with the memory function
(Y page 95). 84
Correct driver's seat positionSeats, steering wheel and mirrors

Seats
Important safety notes
G
WARNING
Children could become trapped if they adjust the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never leave children unsupervised in the vehicle.
The seats can still be adjusted when there is
no SmartKey in the ignition lock. G
WARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
(Y page 47) and "Children in the vehicle"
(Y page 52). G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine. G
WARNING
If head restraints are not installed and adjus-
ted correctly, they cannot provide protection
as intended. There is an increased risk of
injury in the head and neck area, e.g. in the
event of an accident or when braking.
Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head restraint supports the back of the head at
about eye level.
Make sure that you do not rotate the head
restraints of the front and rear seats when
adjusting the head restraints. Otherwise, you cannot adjust the height and angle of the
head restraints correctly.
Adjust the head restraint so that it is as close as possible to your head. G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine. G
WARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats than on the front-passenger seat. Thus, we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and prop- erly secured in an appropriately sized child
restraint system or booster seat recommen-
ded for the size and weight of the child. For
additional information, see the "Children in
the vehicle" section.
A child's risk of serious or fatal injuries is sig-
nificantly increased if the child restraints are
not properly secured in the vehicle and/or the child is not properly secured in the child
restraint. Seats
85Seats, steering wheel and mirrors Z

automatically. If the seat heating is not
switched on automatically:
X Switch on the seat heating manually
(Y page 89) Switching the seat ventilation on/off
Switching on/off Seat ventilation is only available for the front
seats.
The three blue indicator lamps in the buttons
indicate the ventilation level you have selec-
ted.
X Make sure that the SmartKey is in posi-
tion 2(Y page 133) in the ignition lock.
X To switch on: press button:repeatedly
until the desired ventilation level is set.
i If you open the side windows and the slid-
ing sunroof using the SmartKey
(Y page 78), the driver's seat ventilation
automatically switches to the highest level.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
ventilation may switch off. Problems with the seat ventilation If one or all of the indicator lamps in the seat
ventilation button are flashing, the seat ven-
tilation has switched off automatically. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
X Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting.
Once the battery is sufficiently charged, the seat ventilation will switch back on auto-
matically. Steering wheel
Important safety notes
G
WARNING
You could lose control of your vehicle if you do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine. G
WARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never leave children unsupervised in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no SmartKey in
the ignition lock. 90
Steering wheelSeats, steering wheel and
mirrors

R
the vehicle is stationary.
R the outside temperature is within the com-
fort range.
R the engine is at normal operating temper-
ature.
R the set temperature for the vehicle interior
has been reached.
R the battery is sufficiently charged.
R the system detects that the windshield is
not fogged up when the air-conditioning
system is switched on.
R the hood is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
If conditions for automatic engine switch-off
have not been fulfilled, the ¤symbol will
be shown in yellow.
In addition, the Stop/Start inactive Stop/Start inactive mes-
sage is shown in the AMG menu in the multi- function display.
i If you shift the transmission from
Rto D,
the ECO start/stop function is available
again once the ¤symbol reappears in
green in the multifunction display.
i The engine can be automatically switched
off an unlimited number of times.
i You can still activate the HOLD function
when the vehicle is stationary, even if the
engine has been switched off automati-
cally. It is then not necessary to continue
applying the brakes during the automatic
stop phase. When you depress the accel-
erator pedal, the engine starts automati-
cally and the braking effect of the HOLD
function is deactivated. Depress the accel-
erator pedal carefully, as the engine must
be started first.
i During automatic engine switch-off, the
climate control system only operates at a
reduced capacity. If you require full climate
control capacity, the ECO start/stop func-
tion can be deactivated by pressing the
ECO button (Y page 136). Automatic engine start The engine starts automatically if:
R In general:
- you switch off the ECO start/stop func-
tion by pressing the ECO button.
- you release the brakes when in transmis-
sion position Dor Nand when the HOLD
function is not active.
R By the driver:
- you release the brakes when in transmis-
sion position Dor N.
- you depress the accelerator pedal.
- you engage reverse gear R.
- you move the transmission out of posi-
tion P.
- you switch to drive program Sor M.
- you unfasten your seat belt or open the
driver's door.
R By the system:
- the vehicle starts to roll.
- the brake system requires this.
- the temperature in the vehicle interior
deviates from the set range.
- the system detects moisture on the
windshield when the air-conditioning
system is switched on.
- the battery's condition of charge is too
low.
i Shifting the transmission to position
P
does not start the engine. Driving
137Driving an d parking Z

Selector lever
j
Park position
k Reverse gear
i Neutral
h Drive
When you select a transmission position, the
selector lever subsequently returns to its
original position.
The current transmission position P,R, Nor D
appears in the transmission position display
in the multifunction display.
Transmission position and drive pro-
gram display !
If the transmission position display in the
multifunction display is not working, you
should pull away carefully to check whether the desired transmission position is
engaged. Select transmission position D.
Do not restrict the shift range. :
Transmission position
; Drive program
Current transmission position :and current
drive program ;appear in the multifunction
display. The current position of the selector lever is
shown by the indicators next to the selector
lever.
The indicators light up when the SmartKey is
inserted into the ignition lock. The indicators go out when the SmartKey is removed from
the ignition lock.
When the selector lever is in position D, you
can influence the gearshifts made by the
automatic transmission by:
R restricting the shift range
R changing gear yourself
Engaging park position P X
When the vehicle is stationary, depress the
brake pedal and keep it depressed.
X Press the Pbutton in the center console.
i If you depress the brake pedal and push
the selector lever forwards or back to the
first point of resistance, park position Pis
disengaged. The transmission shifts to neu- tral N.
Park position Pis automatically engaged:
R if you remove the SmartKey from the igni-
tion lock
R if you open the driver's door while traveling
at low speed in transmission position Dor
R
R if DISTRONIC PLUS (Y page 169) brakes
your vehicle until it is stationary and at least one of the following conditions is fulfilled:
- the engine is switched off.
- the driver's door is open and the seat belt
is not fastened.
- there is a system malfunction.
- the power supply is insufficient.
Engaging reverse gear R !
Only shift the automatic transmission to
R
when the vehicle is stationary. 140
Automatic transmissionDriving and parking

i
Canada only: This device complies with
RSS-210 of Industry Canada. Operation is
subject to the following two conditions:
1. This device may not cause harmful inter- ference, and
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Removal, tampering, or altering of the
device will void any warranties, and is not
permitted. Do not tamper with, alter, or use
in any non-approved way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
Cruise control lever :
To activate or increase speed
; To set the specified minimum distance
= LIM indicator lamp
? To activate at the current speed/last
stored speed
A To activate or reduce speed
B To switch between DISTRONIC PLUS and
variable SPEEDTRONIC
C To deactivate DISTRONIC PLUS
With the cruise control lever, you can operate
DISTRONIC PLUS and variable SPEED-
TRONIC.
X To switch between variable SPEED-
TRONIC and DISTRONIC PLUS: press thecruise control lever in the direction of arrow
B.
LIM indicator lamp =on the cruise control
lever indicates which function you have selec-
ted:
R LIM indicator lamp =
= off: DISTRONIC
PLUS is selected.
R LIM indicator lamp = =on: variable
SPEEDTRONIC is selected.
Activating DISTRONIC PLUS Activation conditions
In order to activate DISTRONIC PLUS, the fol-
lowing conditions must be fulfilled:
R the engine must be started. It may take up
to two minutes after pulling away before
DISTRONIC PLUS is operational.
R the parking brake must be released.
R the differential lock must be disengaged.
R ESP ®
must be active, but not intervening.
R the transmission must be in position D.
R the driver's door must be closed when you
shift from Pto Dor your seat belt must be
fastened.
R the front-passenger door and rear doors
must be closed.
R the vehicle must not skid.
R the DISTRONIC PLUS function must be
selected (Y page 171).
R the transfer case must be in the HIGH
RANGE transmission position.
R the vehicle must not be on an uphill or
downhill gradient of more than 22 ‑25%.
R the radar sensor must be free from dirt
(Y page 284). Driving systems
171Driving and parking Z

If a vehicle is detected in the monitoring range
of Blind Spot Assist and you switch on the
corresponding turn signal, a double warning
tone sounds. Red warning lamp :flashes. If
the turn signal remains on, vehicles detected
are indicated by the flashing of red warning
lamp :. There are no further warning tones.
Switching on Blind Spot Assist :
Yellow indicator lamp/red warning lamp
X Make sure that Blind Spot Assist is activa-
ted in the on-board computer
(Y page 205).
X Turn the SmartKey to position 2in the igni-
tion lock (Y page 133).
Warning lamps :in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow. HOLD function
General notes The HOLD function can assist the driver in the
following situations:
R when pulling away, especially on steep
slopes
R when maneuvering on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the
driver having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away. i
Do not use the HOLD function when driv-
ing off-road, on steep uphill or downhill gra- dients or on slippery or loose surfaces. The
HOLD function cannot hold the vehicle on
such surfaces.
Activation conditions You can activate the HOLD function if:
R
the vehicle is stationary.
R the engine is running or it has been
switched off by the ECO start/stop func-
tion (AMG vehicles).
R the engine is running.
R the driver's door is closed or your seat belt
is fastened.
R the transmission is in position D,Ror N.
R DISTRONIC PLUS is deactivated.
Activating the HOLD function The vehicle's brakes are applied when the
HOLD function is activated. For this reason,
deactivate the HOLD function while in the car
wash or while towing.
X Make sure that the activation conditions
are met.
X Depress the brake pedal.
X Quickly depress the brake pedal further
until ë appears in the multifunction dis-
play.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake pedal the first
time does not activate the HOLD function,
wait briefly and then try again. 180
Driving systemsDriving and parking