Seats
Adjusting (electrically) ...................100
Adjusting lumba rsuppor t.............. 104
Adjusting the 4-way lumba rsup-
por t................................................ 104
Adjusting the head restraint ..........100
Cleaning the cover .........................331
Correct driver's seat position ........... 98
Important safety notes ....................99
Overview .......................................... 99
Seat heating problem ....................105
Seat ventilation problem ................105
Storing settings (memory func-
tion) ............................................... 111
Switching sea theating on/off .......104
Switching the sea tventilation on/
off .................................................. 105
Selector lever
Cleaning ......................................... 331
Sensors (cleaning instructions) .......328
Service see ASSYST PLUS
Service Centre
see Qualified specialist workshop
Service menu (on-board computer) .239
Service products Brake fluid ..................................... 392
Coolant (engine) ............................ 392
Engine oil ....................................... 391
Fuel ................................................ 386
Important safety notes ..................385
Washer fluid .................................. .393
Settings
Factory (on-board computer) .........245
On-board computer .......................239
Setting the air distribution ...............135
Setting the airflow ............................135
SETUP (on-board computer) .............246
Short journeys (diesel particle fil-
ter) ...................................................... 168
Sidebag ................................................ 45
Side lamps Switching on/off ........................... 116
Side windows
Convenience closing ........................90
Convenience opening ......................90
Important safety notes ....................89Opening/closing
.............................. 89
Problem (malfunction) .....................92
resetting .......................................... 91
Sliding sunroof
Important safety information ...........92
Opening/closing .............................. 93
Problem (malfunction) .....................95
Rain closing feature .........................93
Resetting ......................................... 93
Snow chains ...................................... 357
Socket Centre console .............................. 308
Luggage compartment ...................309
Rea rcompartmen t......................... 309
Under the armrest .........................308
Sockets
General notes ................................ 308
Spare wheel
Storing ........................................... 378
Specialist workshop ............................ 24
Spectacles compartment .................291
Speed, controlling see Cruise control
Spee dLimit Assist
Activating/deactivating the warn-
ing function .................................... 236
Displayin g...................................... 236
Display message ............................ 262
Display message in the multifunc-
tion displa y.................................... 204
Important safety notes ..................204
Speedometer
Digita l............................................ 231
In the Instrument cluster .........30, 227
Segments ...................................... 228
Selecting the unit of measure-
ment .............................................. 239
see Instrument cluster
SPEEDTRONIC
Deactivating variabl e..................... 176
Display message ............................ 267
Function/notes ............................. 174
Important safety notes ..................174
LIM indicator lamp .........................175
Permanent ..................................... 177
Selecting ........................................ 175
Storing the current spee d.............. 175
Variabl e......................................... 175 Index
17
NECK-PRO luxury head restraints
NECK-PRO luxury head restraints (example: CLS
Coupé)
X
Remove resetting tool :from the vehicle
document wallet.
X Slide resetting tool :into guide ;
between the NECK-PRO luxury head
restraint and the rear cover of the head
restraint.
X Push resetting tool :downwards until you
hear the head restraint deployment mech-
anism engage.
X Pull ou tresetting tool :.
X Firmly press the NECK-PRO luxury head
restraint cushion back =until it engages.
X Repeat this procedure for the second
NECK-PRO luxury head restraint.
X Put resetting tool :back into the vehicle
documen twallet.
i If you have difficulty resetting the NECK-
PRO luxury head restraints, have this work
carried out at a qualified specialist work-
shop. PRE-SAFE
®
(anticipatory occupant
protection) G
WARNING
When adjusting the seat, make sure that
nobody can become trapped.
! 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.
PRE-SAFE ®
takes pre-emptive measures to
protect occupants in certain hazardous sit-
uations.
PRE-SAFE ®
intervenes:
R when BAS activates, e.g. in emergency
braking situations
R when BAS PLUS intervenes powerfully on
vehicles with DISTRONIC PLUS
R if, on vehicles with DISTRONIC PLUS, the
radar sensor system detectsani mminent
dange rofcollision in certain situations
R in critical driving situations, e.g. when phys-
ical limits are exceeded and the vehicle
understeers or oversteers severely
PRE-SAFE ®
takes the following measures
depending on the hazardous situation detec-
ted:
R the front seat belts are pre-tensioned.
R vehicles with the memory function: the
front-passenger seat is adjusted if it is in an
unfavourable position.
R vehicles with a multicontour seat or active
multicontour seat: the air pressure in the
side bolsters of the seat cushion and back-
rest is increased.
R if the vehicle skids, the sliding sunroof/
panorama sliding sunroof and the side win-
dows are closed so that only a small gap
remains.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pretensioning. The air pressure in the
side bolsters on the multicontour seat/active
multicontour seat is reduced again. All set-
tings made by PRE-SAFE ®
can then be
reversed.
If the seat belts are not released:
X Move the backrest or seat back slightly, but
only when the vehicle is stationary.
The belt pretensioning is reduced and the
locking mechanism is released. 48
Occupant safetySafety
Using the key
The key must be close to the driver's door
handle.
X Point the tip of the key at the driver's door
handle.
X Press and hold the &button until the
side windows and the sliding sunroo fare
fully closed.
X Make sure that all the side windows and the
sliding sunroof are closed.
X To interrupt convenience closing:
release the &button.
Using KEYLESS-GO The KEYLESS-GO key must be outside the
vehicle. All the doors must be closed. X
Touch recessed sensor surface :on the
door handle until the side windows and the
sliding sunroof are fully closed.
i Make sure you only touch recessed sen-
sor surface :.
X Make sure that all the side windows and the
sliding sunroof are closed.
X To interrupt convenience closing:
release recessed sensor surface :on the
door handle. Resetting the side windows
If a side window can no longer be closed fully,
you must reset it. X
Close all doors.
X Turn the key to position 1or 2in the ignition
lock.
X Pull the corresponding switch on the door
control panel until the side window is com-
pletely closed .(Y page 89)
X Hold the switch for an additional second.
If the side window opens again slightly:
X Immediately pull the corresponding switch
on the door control panel until the side win-
dow is completely closed (Y page 89).
X Hold the switch for an additional second.
X If the corresponding side window remains
closed after the button has been released,
the side window has been reset correctly.
If this is not the case, repeat the steps
above again. Side windows
91Opening and closing Z
Change the positio
nofthe sliding sunroof
or open a side window slightly to reduce or
eliminate these noises.
i Resonance noises can occur in addition
to the usual airflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior.
To reduce or eliminate these noises:
R change the position of the sliding sunroof
R open a side window
R open the sliding sunroof to the comfort
setting. Operating the sliding sunroof
Opening and closing Overhead control panel
:
To raise
; To open
= To close/lower
X Turn the key to position 1or 2in the ignition
lock.
X Press or pull the 3switch in the corre-
sponding direction.
i If you press the 3switch beyond the
point of resistance, an automatic opening/
closing process is started in the corre-
sponding direction. You can stop automatic
operation by pressing again.
i If you press the 3switch beyond the
point of resistance, an automatic opening/
closing process is started in the corre-
sponding direction. When opening, the slid- ing sunroof automatically moves into the
comfort setting. If you operate the switch
again in the direction for opening, the slid-
ing sunroof opens completely. You can stop
automatic operation by operating the
switch again.
The sun protection cover automatically opens
along with the sliding sunroof. You can open
or close the sun protection cover manually
when the sliding sunroof is raised or closed.
i You can continue to operate the sliding
sunroof after switching off the engine or
removing the key. This function remains
active for five minutes or until you open a
front door.
Rain-closing feature When the key is in position
0in the ignition
lock or is removed, the sliding sunroof closes
automatically:
R if it starts to rain
R at extreme outside temperatures
R after six hours
R if there is a malfunction in the power supply
The rear of the sliding sunroof is then raised
in order to ventilate the vehicle interior.
i If the sliding sunroof is obstructed when
being closed by the rain-closing feature, it
opens again slightly. The rain-closing fea-
ture is then deactivated.
The sliding sunroof does not close if:
R it is raised at the rear.
R it is blocked.
R no rain is falling on the area of the wind-
screen being monitored by the rain sensor.
The area being monitored by the rain sen-
sor may be covered, for example, because
the vehicle is under a bridge or in a carport.
Resetting !
If the sliding sunroof still cannot be
opened or closed fully after resetting, con-
tact a qualified specialist workshop. Sliding sunroof
93Opening and closing Z