
Roller sunblind
Opening/closing .............................. 93
Panorama sliding sunroo f................ 93
Roof carrier ........................................ 304
Roof lining and carpets (cleaning
instructions) ...................................... 323
Roof load (maximum) ........................372
Route (navigation) see Route guidance (navigation)
Route guidance (navigation) ............232 S
Safety Children in the vehicle .....................54
Child restraint systems ....................54
Safety net
Attaching ....................................... 302
Important safety information .........301
Safety system
see Driving safety system
Seat
Folding the backrest (rear com-
partment) forwards/back ..............299
Seat belt
Activating/deactivating seat-belt
adjustment (12-button multifunc-
tion steering wheel) .......................243
Adjusting the driver's and front-
passenger seat belt .........................51
Adjusting the height ......................... 52
Belt force limiter .............................. 53
Belt tensioner .................................. 53
Centre rear-compartment sea t........ 52
Cleaning ......................................... 323
Display message (12-button mul-
tifunction steering wheel) ..............255
Display message (4-button multi-
function steering wheel) ................249
Fastening ......................................... 51
Important safety guidelines .............50
Rear seat belt status indicator .........53
Releasing ......................................... 52
Warning lamp ................................. 284
Warning lamp (function) ................... 52 Seats
Adjusting (electrically) .....................98
Adjusting (manually and electri-
cally) ................................................ 98
Adjusting lumbar support ..............100
Adjusting the 4-way lumbar sup-
port ................................................ 100
Adjusting the head restraint ............98
Cleaning the cover .........................323
Correct driver's seat position ........... 96
Folding the rear bench seat for-
wards/back ................................... 298
Important safety notes ....................97
Seat heating problem ....................101
Seat ventilation problem ................101
Storing settings (memory func-
tion) ............................................... 106
Switching seat heating on/off .......100
Switching the seat ventilation on/
off .................................................. 101
Sensors (cleaning instructions) .......321
Service see ASSYST PLUS
Service Centre
see Qualified specialist workshop
Service menu (12-button multi-
function steering wheel) ..................238
Service products
AdBlue ®
special additive s.............. 368
Brake fluid ..................................... 371
Coolant (engine) ............................ 371
Engine oil ....................................... 369
Fuel ................................................ 365
Important safety notes ..................365
Washer fluid .................................. .372
Settings
Factory (12-button multifunction
steering wheel) .............................. 244
On-board computer (12-button
multifunction steering wheel) ........238
Setting the air distribution ...............133
Setting the airflow ............................134
Shifting to neutral (manual trans-
mission) ............................................. 154
Short journeys (diesel particle fil-
ter) ...................................................... 167
Sidebag ................................................ 47 Index
19

The belt strap is tightened slightly when:
R you engage the belt tongue in the belt
buckle and you then turn the key to position
2 in the ignition lock.
R the key is in position 2in the ignition lock
and you then engage the belt tongue in the
buckle.
The seat-belt adjustment will apply a certain
tightening force if any slack is detected
between the occupant and the seat belt. Do
not hold on to the seat belt tightly while it is
adjusting. On vehicles with a luxury multi-
function steering wheel (12 buttons) you can
switch the seat-belt adjustment on and off
using the on-board computer (Y page 243).
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. More
information about PRE-SAFE ®
can be found
in the "PRE-SAFE ®
(preventative occupant
protection)" section (Y page 48).
Belt height adjustment You can adjust the seat belt height on the
driver's seat and the front-passenger seat. Adjust the height so that the upper part of the
seat belt is routed across the centre of your
shoulder.
X To raise: slide the belt sash guide upwards.
The belt sash guide engages in various posi-
tions.
X To lower: press and hold belt sash guide
release :. X
Slide the belt sash guide downwards.
X Let go of belt sash guide release :and
make sure that the belt sash guide has
engaged.
Wearing the rear centre seat belt If the left-hand rear seat backrest is folded
down and back up again, the rear centre seat
belt may lock. The seat belt can then not be
pulled out.
X
To release the rear centre seat belt: pull
the seat belt out approximately 20 mm at
the belt outlet on the backrest and then
release it again.
The seat belt is retracted and released.
Releasing the seat belts X
Press release button ?(Ypage 51) and
guide belt tongue ;back towards belt
sash guide :.
! Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt. Dam-
aged seat belts can no longer fulfil their
protective function and must be replaced.
Visit a qualified specialist workshop.
Belt warning for the driver and front
passenger The
7 seat belt warning lamp in the instru-
ment cluster is a reminder for all occupants
to fasten their seat belts. It may light up con-
tinuously or flash. In addition, there may be a
warning tone.
The 7 seat belt warning lamp goes out and
the warning tone ceases once the driver and
the front passenger have fastened their seat
belt.
For certain countries only: regardless of
whether the driver and the front passenger
have fastened their seat belts, the 7seat 52
Occupant safetySafety

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos-
sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 27). Correct driver's seat position
X
Observe the safety guidelines on seat
adjustment (Y page 97).
X Make sure that seat =is adjusted prop-
erly.
Manual and electrical seat adjustment
(Y page 98)
Electrical seat adjustment (Y page 98)
When adjusting the seat, make sure that:
R you are as far away from the driver's airbag
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 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.
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 centre of the head restraint.
X Observe the safety guidelines on steering
wheel adjustment (Y page 101).
X Make sure that steering wheel :is adjus-
ted properly.
Adjusting the steering wheel manually
(Y page 102)
Adjusting the steering wheel electrically
(Y page 102)
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 50).
X Check whether you have fastened the seat
belt ;properly (Y page 51).
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 103).
X Vehicles with a memory function: save
the seat, steering wheel and exterior mirror 96
Correct driver's seat positionSeats, steering wheel and mirrors

settings with the memory function
(Y
page 106). Seats
Important safety notes
G
WARNING
The seats can still be adjusted when there is
no key in the ignition lock. For this reason,
children should never be left unsupervised in
the vehicle. They could adjust the seats and
become trapped. G
WARNING
Only adjust the driver's seat when the vehicle
is stationary. You will otherwise be distracted
from the road and traffic conditions and you
could lose control of the vehicle as a result of
the seat moving. This could cause an acci-
dent. G
WARNING
If you adjust the seat height carelessly, you or
others could be trapped and thereby injured.
Children in particular could unintentionally
press the buttons to electrically adjust the
seats and become trapped.
Take care that:
R while moving the seats, your hands do not
get under the lever assembly of the seat
adjustment system.
R children in the vehicle do not slide their
hands under the levers. G
WARNING
Make sure that nobody can become trapped
when adjusting the seats.
Observe the notes on airbags.
Secure children as recommended; see the
"Children in the vehicle" section. G
WARNING
Make sure that the back of your head is sup-
ported at eye level by the central area of the head restraint. If your head is not supported
correctly by the head restraint, you could suf-
fer a severe neck injury in the event of an
accident. Never drive if the head restraints are
not engaged and set correctly.
G
WARNING
A seat belt can only offer its intended degree
of protection when the backrest is almost ver-
tical and the occupant is sitting upright. Avoid
seat positions that do not allow the seat belt
to be routed correctly. Adjust the backrest so
that it is as upright as possible. Never travel
with the backrest reclined too far backwards.
You could otherwise be seriously or even
fatally injured in the event of an accident or
sudden braking.
! To avoid damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
R clean the seat covers as recommended;
see the "Interior care" section.
R do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating mate-
rials, e.g. blankets, coats, bags, seat cov-
ers, child seats or booster seats.
! Make sure that there are no objects in the
footwell or behind the seats when moving
the seat back. There is a risk that the seats
and/or the objects could be damaged.
i The rear-compartment head restraints
can be removed (Y page 99). Seats
97Seats, steering wheel and mirrors Z

For more information, contact a qualified
specialist workshop.
i Further related subjects:
R Luggage compartment enlargement
(folding the rear bench seat forwards) Adjusting the seats manually and
electrically :
Backrest angle
; Seat height
= Seat cushion angle
? Seat fore-and-aft adjustment
i Adjust the seat cushion angle so that your
thighs are lightly supported.
Seat fore-and-aft adjustment X
Lift handle ?and slide the seat forwards
or backwards.
X Release lever ?again.
Make sure that you hear the seat engage in
position.
Seat cushion angle X
Turn handwheel =in the desired direction. Adjusting the seats electrically
:
Head restraint height
; Seat cushion angle
= Seat height
? Seat fore-and-aft adjustment
A Backrest angle
i Vehicles with memory function: if PRE-
SAFE ®
has been triggered, the front-
passenger seat will be moved to a better
position if it was previously in an unfavour-
able position.
i You can store the seat settings using the
memory function (Y page 106). Adjusting the head restraints
Adjusting the head restraints manually Adjusting the head restraint height98
SeatsSeats, steering wheel and mirrors

X
To raise: pull the head restraint up to the
desired position.
X To lower: press release catch :in the
direction of the arrow and push the head
restraint down to the desired position.
Adjusting the angle of the head restraints X
Push or pull the lower edge of the head
restraint in the direction of the arrow.
Adjusting the head restraints electri-
cally X
To adjust the head restraint height: slide
the switch for head restraint adjustment
(Y page 98) up or down in the direction of
the arrow.
Rear seat head restraints Adjusting the rear seat head restraint
height Once the head restraint is fully lowered, press
release catch :. X
To raise: pull the head restraint up to the
desired position.
X To lower: press release catch :and push
the head restraint down until it is in the
desired position.
Adjusting the rear seat head restraint
angle
Adjust the head restraints so that they are as
close as possible to your head.
You can only adjust the two outer head
restraints. X
Pull or push the top of the head restraint
until it is in the desired position.
Fitting/removing the rear seat head
restraints G
WARNING
Occupants should only travel sitting on seats
that have the head restraints fitted. This
reduces the risk of injury to the occupant in
the event of an accident. Seats
99Seats, steering wheel and mirrors Z

X
To remove: pull the head restraint up to
the stop.
X Press release catch :and pull the head
restraint out of the guides.
X To refit: insert the head restraint so that
the notches on the bar are on the left when
viewed in the direction of travel.
X Push the head restraint down until you hear
it engage in position. Adjusting the lumbar support
You can adjust the contour of the driver's seat
so as to provide optimum support for your
back. X
Move adjustment lever :in the direction
of the arrow until the desired backrest con-
tour is achieved. Adjusting the 4-way lumbar support
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back. :
To raise the backrest contour
; To soften the backrest contour
= To lower the backrest contour
? To harden the backrest contour Switching the seat heating on/off
Switching on/off G
WARNING
Repeatedly setting the seat heating to level
3 may result in excessive seat temperatures.
The health of passengers that have limited
temperature sensitivity or a limited ability to
react to excessively high temperatures may
be affected or they may even suffer burn-like
injuries. Therefore, do not use seat heating
level 3repeatedly.
The three red indicator lamps in the button
indicate the heating level you have selected.
i If the battery voltage is too low, the seat
heating may switch off. Driver's and front-passenger seat100
SeatsSeats, steering
wheel and mirrors

The system automatically switches down
from level 3to level 2after approximately
eight minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button:repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
Problems with the seat heating The seat heating has switched off prema-
turely or cannot be switched on. 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 heating
or interior lighting. Switching the seat ventilation on/off
Switching on/off The three blue indicator lamps in the buttons
indicate the ventilation level you have selec-
ted.
i If the battery voltage is too low, the seat
ventilation may switch off. X
Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button:repeatedly
until the desired ventilation level is set.
i You can open the side windows and the
sliding sunroof using the "Convenience
opening" feature (Y page 90). The seat ven-
tilation of the driver's seat automatically
switches to the highest level.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
Problems with the seat ventilation The seat ventilation has switched off prema-
turely or cannot be switched on. 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 heating
or interior lighting. Steering wheel
Important safety notes
G
WARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving, or
driving without the steering wheel adjustment
feature locked could cause the driver to lose
control of the vehicle. Steering wheel
101Seats, steering wheel and mirrors
Z