Page 10 of 303
8In briefHead restraint adjustment
Press release button, adjust height,
engage.
Head restraints 3 40.
Seat belt
Pull out the seat belt and fasten in belt
buckle. The seat belt must not be
twisted and must fit close against the
body. The backrest must not be tilted back too far (maximum approx. 25°).
To unfasten belt, press red button on belt buckle.
Seat position 3 42, Seat belts
3 51, Airbag system 3 53.
Mirror adjustment
Interior mirror
To adjust the mirror, move the mirror
housing in the desired direction.
Manual anti-dazzle interior mirror
3 34, Automatic anti-dazzle interior
mirror 3 35.
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18In briefStarting off
Check before starting off ● Tyre pressure and condition 3 251, 3 286.
● Engine oil level and fluid levels 3 232.
● All windows, mirrors, exterior lighting and number plates are
free from dirt, snow and ice and
are operational.
● Proper position of mirrors, seats, and seat belts 3 33, 3 42,
3 52.
● Brake function at low speed, particularly if the brakes are wet.Starting the engine
● Ignition switch: turn key toposition 2.
Power button: press
Engine Start/Stop for a few
seconds until green LED
illuminates.
● Move the steering wheel slightly to release the steering wheel
lock.
● Operate clutch and brake.
● Automatic transmission: operate brake pedal and move selector
lever to P or N.
● Do not operate accelerator pedal.
● Diesel engines: wait until control
indicator ! for preheating
extinguishes.
● Ignition switch: turn key to position 3 and release.
Power button: press
Engine Start/Stop and release.
● The engine starts after a short delay.
Starting the engine 3 155.
Page 25 of 303

Keys, doors and windows232. Insert the key blade again forapprox. 6 mm and turn the key to
open the housing. Further
insertion of the key blade can
damage the housing.
3. Remove and replace battery. Use
CR 2032 or equivalent battery.
Pay attention to the installation
position.
4. Close the housing and insert key blade.
Batteries do not belong in household
waste. They must be disposed of at an appropriate recycling collection
point.
Fault
If the central locking cannot be
operated or the engine cannot be
started, the cause may be one of the
following:
● Fault in electronic key.
● Electronic key is out of reception range.
● The battery voltage is too low.● Overload of the central locking system by operating at frequent
intervals, the power supply is
interrupted for a short time.
● Interference from higher-power radio waves from other sources.
To rectify the cause of the fault,
change the position of the electronic
key.
Manual unlocking 3 23.
Memorised settings
Whenever the ignition is switched off, the following settings are
automatically memorised by the
electronic key:
● automatic climate control
● lighting
● Infotainment system
● central locking system
● Sport mode settings
● comfort settings
The saved settings are automatically
used the next time the ignition is
switched on with the memorised
electronic key 3 21.A precondition is that Personalisation
by Driver is activated in the personal
settings of the Info-Display. This must
be set for each electronic key which is used. The status change is available
only after locking and unlocking the
vehicle.
The assigned memory position of the
power seat is automatically recalled
when switching on ignition and Auto
Memory Recall is activated in the
Info-Display for the memorised
electronic key.
Power seat 3 45.
Vehicle personalisation 3 117.
Central locking system
Unlocks and locks doors, load
compartment and fuel filler flap.
A pull on an interior door handle
unlocks the respective door. Pulling
the handle once more opens the door.
Note
In the event of an accident in which
airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
Page 42 of 303

40Seats, restraintsSeats, restraintsHead restraints............................ 40
Front seats ................................... 42
Seat position .............................. 42
Manual seat adjustment ............43
Power seat adjustment ..............45
Armrest ...................................... 48
Heating ...................................... 48
Ventilating .................................. 49
Massage .................................... 49
Rear seats ................................... 50
Armrest ...................................... 50
Heating ...................................... 50
Seat belts ..................................... 51
Three-point seat belt .................52
Airbag system .............................. 53
Front airbag system ...................56
Side airbag system ....................57
Curtain airbag system ...............57
Airbag deactivation ....................58
Child restraints ............................. 59
Child restraint systems ..............59
Child restraint installation locations ................................... 62Pedestrian protection system ......66
Active bonnet ............................. 66Head restraints
Position9 Warning
Only drive with the head restraint
set to the proper position.
The upper edge of the head restraint
should be at upper head level. If this
is not possible for extremely tall
people, set to highest position, and
set to lowest position for small people.
Page 53 of 303

Seats, restraints51Seat belts
The seat belts are locked during
heavy acceleration or deceleration of
the vehicle, holding the occupants in
the seat position. Thereby the risk of
injury is considerably reduced.
9 Warning
Fasten seat belt before each trip.
In the event of an accident, people
not wearing seat belts endanger their fellow occupants and
themselves.
Seat belts are designed to be used by only one person at a time. Child
restraint system 3 59.
Periodically check all parts of the belt
system for damage, soiling and
proper functionality.
Have damaged components replaced by a workshop. After an accident,
have the belts and triggered belt
pretensioners replaced by a
workshop.
Note
Make sure that the belts are not
damaged by shoes or sharp-edged objects or trapped. Prevent dirt from getting into the belt retractors.
Seat belt reminder
Each seat is equipped with a seat belt reminder, indicated for front seats by
control indicators X and k, or for rear
seats by the symbol X in the Driver
Information Centre 3 97.
Belt force limiters
Stress on the body is reduced by the
gradual release of the belt during a
collision.Belt pretensioners
In the event of a head-on, rear-end or
side-on collision of a certain severity,
the front and rear seat belts are
tightened. The front seat belts and the outer rear seat belts are tightened by
one pretensioner per seat.9 Warning
Incorrect handling (e.g. removal or
fitting of belts) can trigger the belt
pretensioners.
Deployment of the belt pretensioners
is indicated by continuous illumination
of control indicator v 3 98.
Triggered belt pretensioners must be replaced by a workshop. Belt
pretensioners can only be triggered
once.
Note
Do not affix or install accessories or
other objects that may interfere with
the operation of the belt
pretensioners. Do not make any
modifications to belt pretensioner components as this will invalidate
the operating permit of your vehicle.
Page 54 of 303
52Seats, restraintsThree-point seat beltFasten
Withdraw the belt from the retractor,
guide it untwisted across the body
and insert the latch plate into the
buckle. Tighten the lap belt regularly
whilst driving by pulling the shoulder
belt.
Loose or bulky clothing prevents the
belt from fitting snugly. Do not place
objects such as handbags or mobile
phones between the belt and your body.
9 Warning
The belt must not rest against hard
or fragile objects in the pockets of
your clothing.
Seat belt reminder X, k 3 97.
Unfasten
To release belt, press red button on
belt buckle.
Page 55 of 303

Seats, restraints53Using the seat belt while pregnant9Warning
The lap belt must be positioned as
low as possible across the pelvis
to prevent pressure on the
abdomen.
Airbag system
The airbag system consists of a
number of individual systems
depending on the scope of
equipment.
When triggered, the airbags inflate
within milliseconds. They also deflate
so quickly that it is often unnoticeable
during the collision.9 Warning
If handled improperly, the airbag
systems can be triggered in an
explosive manner.
Note
The airbag systems and belt
pretensioner control electronics are
located in the centre console area.
Do not put any magnetic objects in
this area.
Do not affix any objects onto the
airbag covers and do not cover them with other materials. Have damaged
covers replaced by a workshop.
Each airbag is triggered only once.
Have deployed airbags replaced by
a workshop. Furthermore, it may be
necessary to have the steering
wheel, the instrument panel, parts of the panelling, the door seals,
handles and the seats replaced.
Do not make any modifications to
the airbag system as this will
invalidate the vehicle operating
permit.
When the airbags inflate, escaping
hot gases may cause burns.
Control indicator v for airbag systems
3 98.
Child restraint systems on front passenger seat with airbag
systems
Warning according to ECE R94.02:
Page 59 of 303

Seats, restraints57Keep the area in which the airbag
inflates clear of obstructions.
Fit the seat belt correctly and
engage securely. Only then is the
airbag able to protect.
Side airbag system
The side airbag system consists of an
airbag in each front seat backrest and
in the rear outboard seat backrests.
This can be identified by the word
AIRBAG .
The side airbag system is triggered in
the event of a side impact of a certain severity. The ignition must be
switched on.
The inflated airbags cushion the
impact, thereby reducing the risk of
injury to the upper body and pelvis in
the event of a side-on collision
considerably.
9 Warning
Keep the area in which the airbag
inflates clear of obstructions.
Note
Only use protective seat covers that
have been approved for the vehicle.Be careful not to cover the airbags.
Curtain airbag system
The curtain airbag system consists of an airbag in the roof frame on each
side. This can be identified by the
word AIRBAG on the roof pillars.
The curtain airbag system is triggered
in the event of a side-on impact of a
certain severity. The ignition must be
switched on.
The inflated airbags cushion the
impact, thereby reducing the risk of
injury to the head in the event of a
side-on impact considerably.