
Operating the sliding sunroof
Opening and closing 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. 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.
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.
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,
e.g. because the vehicle is under a bridge.
Resetting Reset the sliding sunroof if it does not move
smoothly.
X
Turn the key to position 1or 2in the ignition
lock.
X Raise the sliding sunroof fully at the rear
(Y page 99).
X Keep the 3switch pressed for another
second.
X Make sure that the sliding sunroof can be
fully opened and closed again (Y page 99).
X If this is not the case, repeat the steps
above again.
! If the sliding sunroof still cannot be
opened or closed fully after resetting, con-
tact a qualified specialist workshop. Sliding sunroof
99Opening and closing Z

sponding direction. You can stop automatic
operation by pressing again.
Resetting the panoramas liding sunroof
and the roller sunblinds Reset the panorama sliding sunroof and the
roller sunblinds if the panorama sliding sun-
roof or the roller sunblinds do not move
smoothly.
X Turn the key to position 1or 2in the ignition
lock.
X Pull the 3switch repeatedly to the point
of resistance in the direction of arrow =
until the panorama sliding sunroof is fully
closed.
X Keep the 3switch pulled for an addi-
tional second.
X Pull the 3switch repeatedly to the point
of resistance in the direction of arrow =
until the roller sunblinds are fully closed.
X Keep the 3switch pulled for an addi-
tional second.
X Make sure that the panorama sliding sun-
roof (Y page 100) and the roller sunblinds
(Y page 100) can be fully opened again.
X If this is not the case, repeat the steps
above again.
! If the panorama sliding sunroof and the
roller sunblind cannot be fully opened or
closed after resetting, contac taqualified
specialist workshop. Problems with the sliding sunroof
Your vehicle may be fitted with a sliding sun-
roof or a panorama sliding sunroof .Inthe fol-
lowing section, the term "sliding sunroof"
refers to both types of sliding sunroof.
Problem: the sunroof cannot be closed
and you cannot see the cause. G
WARNING
You could be severely or even fatally injured
when closing the sliding sunroof with increased closing force or if the anti-entrap-
ment feature is deactivated. Make sure that
nobody can become trapped when closing the
sliding sunroof.
If the sliding sunroof is obstructed during
closing and reopens again slightly:
X Immediately after the sliding sunroof
blocks, pull the 3switch in the over-
head control panel down to the point of
resistance and hold it until the sliding sun-
roof is closed.
The sliding sunroof is closed with increased
force.
If the sliding sunroof is obstructed again dur-
ing closing and reopens again slightly:
X Immediately after the sliding sunroof
blocks, pull the 3switch in the over-
head control panel down to the point of
resistance and hold it until the sliding sun-
roof is closed.
The sliding sunroof is closed without the
anti-entrapment feature. Sliding sunroof
101Opening and closing Z

Exterior mirrors
Adjusting the exterior mirrors G
WARNING
The exterior mirrors reduce the size of the
image .Objects are actually closer than they
appear. You could misjudge the distance from
vehicles driving behind and cause an acci-
dent, e.g. when changing lane. For this rea-
son, make sure of the actual distance from the
vehicle driving behind by glancing over your
shoulder.
The convex exterior mirrors provide a larger
field of vision.
The exterior mirrors are automatically heated
if the rear window heating is switched on and
the outside temperature is low. X
Make sure that the key is in position 1or
2 in the ignition lock.
X Press button :for the left-hand exterior
mirror or button ;for the right-hand exte-
rior mirror.
The indicator lamp in the corresponding
butto nlights up in red.
The indicator lamp goes out again after
some time. You can adjust the selected
mirror using adjustment button =as long
as the indicator lamp is lit.
X Press adjustmen tbutton =up, down, or
to the left or right until you have adjusted
the exterior mirror to the correct position.
You should have a good overview of traffic
conditions. Folding the exterior mirrors in or out
electrically
X
Make sure that the key is in position 1or
2 in the ignition lock.
X Briefly press button :.
Both exterior mirrors fold in or out.
i Make sure that the exterior mirrors are
always folded out fully while driving .They
could otherwise vibrate.
Setting the exterior mirrors If the battery has been disconnected or com-
pletely discharged, the exterior mirrors must
be reset. The exterior mirrors will otherwise
not fold in when you select the "Fold in mir-
rors when locking" function in the on-board
computer .
X
Make sure that the key is in position 1in
the ignition lock.
X Briefly press button :.
Folding the exterior mirrors in or out
automatically If the "Fold in mirrors when locking" function
is activated in the on-board computer :
R
the exterior mirrors fold in automatically as
soon as you lock the vehicle from the out-
side.
R the exterior mirrors fold out again automat-
ically as soon as you unlock the vehicle and
then open the driver's or front-passenger
door. Mirrors
117Seats, steering wheel and mirrors Z

i
If the exterior mirrors have been folded in
manually, they do not fold out.
Exterior mirror out of position If an exterior mirror has been pushed out of
position, proceed as follows:
X
Vehicles without electricall yfolding
exterior mirrors: move the exterior mirror
into the correc tposition manually.
X Vehicles with electrically folding exte-
rior mirrors: press the mirror-folding but-
ton (Y page 117) repeatedly until you hear
the mirror engage in position.
The mirror housing is engaged again and
you can adjust the exterior mirrors as usual
(Y page 117). Automatic anti-dazzle mirrors
G
WARNING
If incident light from headlamps is prevented
from striking the sensor in the rear-view mir-
ror, for instance, by luggage piled too high in
the vehicle, the mirror's automatic anti-dazzle
function will not operate.
Incident light could then blind you. This may
distract you from the traffic conditions and,
as a result, you may cause an accident.
The rear-view mirror and the exterior mirror
on the driver's side automatically go into anti-
dazzle mode if the ignition is switched on and
incident light from headlamps strikes the sen-
sor in the rear-view mirror.
The mirrors do not go into anti-dazzle mode if
reverse gear is engaged or the interior lighting
is switched on. Parking position for the exterior mir-
ror on the front-passenger side
Setting and storing the parking position You can position the front-passenger side
exterior mirror in such a way that you can see the rear wheel on that side as soon as you
engage reverse gear. You can store this posi-
tion.
X
Make sure that the vehicle is stationary and
that the key is in position 2in the ignition
lock.
X Press button ;for the exterior mirror on
the front-passenger side.
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
X Use adjustment button =to adjust the
exterior mirror. You should see the rear
wheel and the kerb in the exterior mirror.
The parking position is stored.
i If you shift the transmission to another
position, the exterior mirror on the front-
passenger side returns to the driving posi-
tion.
i You can also store the parking position
using memory button M?.
X Make sure that the key is in position
2 in the ignition lock.
X With the exterior mirror on the front-
passenger side activated, use adjust-
ment button =to adjust the exterior
mirror. You should see the rear wheel 118
MirrorsSeats, steering wheel and mirrors

and the kerb in the exterior mirror on
the front-passenger side.
X Press memory button M? and one of
the arrows on adjustment button =
within three seconds.
The parking positio nis stored if the
exterior mirror does not move.
If the mirror moves out of position, repeat
the steps.
Calling up astore dparking position set-
ting X
Tur nthe key to position 2in the ignition
lock.
X Adjust the exterior mirror on the front-
passenger side with the corresponding but-
ton (Y page 117).
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the stored parking position.
The exterior mirror on the front-passenger
side moves back to its original position:
R as soon as you exceed a speed of
10 km/h
R about ten seconds after you have disen-
gaged reverse gear
R if you press button :for the exterior mir-
ror on the driver's side Memory function
Storing settings
G
WARNING
The memory function can still be used when
the key has been removed. For this reason,
children should never be left unsupervised in
the vehicle. They could otherwise become
trapped when adjusting the seat or the steer-
ing wheel. G
WARNING
Only use the memory function on the driver's
side when the vehicle is stationary. You could otherwise be distracted from the traffic con-
ditions by the steering wheel and seat moving
of their own accord, and as a result, cause an
accident.
With the memory function, you can store up
to three different settings, e.g. for three dif-
ferent people.
The following settings are stored as a single
memory preset:
R position of the seat, backrest and head
restraint
R active multicontour seat: dynamic function
level
R driver's side: steering wheel position
R driver's side: position of the exterior mir-
rors on the driver's and front-passenger
sides X
Adjust the seat (Y page 106).
X On the driver's side, adjust the steering
wheel (Y page 115) and the exterior mirrors
(Y page 117).
X Briefly press the Mmemory button and
then press storage position button 1,2or
3 within three seconds.
The settings are stored in the selected pre-
set position. Atone sounds when the set-
tings have been completed. Calling up
astore dsetting
X Press and hold the relevant storage posi-
tio nb utton 1,2or 3until the seat, steering Memory function
119Seats, steering wheel and mirrors Z

X
Press the Rbutton.
The yellow Rindicator lamp in the
instrument cluster lights up.
X To switch off the rear foglamp: press the
R button.
The yellow Rindicator lamp in the
instrument cluster goes out.
Vehicles with frontf oglamps: when the light
switch is in the Tposition, the rear fog-
lamp can only be switched on if the foglamps
(without dipped-beam headlamps) are
switched on.
i If you switch the engine off (key in posi-
tion 1in the ignition lock) and then restart
it, the previous rear foglamp settings are
restored.
Adjusting the headlam prange (halogen
headlamps) The headlamp range control allows you to
adjust the cone of light from the headlamps
to sui tthe vehicle load. g
Driver's seat and front-passenger seat
occupied
1 Driver's seat, front-passenger seat and
rear seats occupied
2 Driver's seat, front-passenger seat and
rear seats occupied, boot laden
3 Driver's and front-passenger seats occu-
pied and maximum permissible rear axle
load utilised, e.g. when towing a trailer X
Start the engine.
X Turn headlamp range control to the posi-
tion which corresponds to the load in your
vehicle.
Headlampc leaning system If the "Wipe with washer fluid" function is
operated five times (Y
page 132) while the
lights are on and the engine is running, the
headlamps are cleaned automatically. When
you switch off the ignition, the automatic
headlamp cleaning syste mis reset and count-
ing is resumed from 0. Combination switch
Turn signals :
Main-beam headlamps
; Turn signal, right
= Headlamp flasher
? Turn signal, left
X To indicate briefly: press the combination
switch briefly to the pressure point in the
direction of arrow ;or?.
The corresponding turn signal flashes three
times.
X To indicate: press the combination switch
beyond the pressure point in the direction
of arrow ;or?. 124
Exterior lightingLights and windscreen wipers

Making adjustments in 10 km/h incre-
ments
X Briefly press the cruise control lever
beyond the pressure point, up :for a
higher speed or down ?for a lower speed.
or
X Keep the cruise control leve rpressed
beyond the pressure point until the desired
speed is set. Press the cruise control lever
up : for a higher speed or down ?for a
lower speed.
Deactivating variable SPEEDTRONIC
There are several ways to deactivate variable
SPEEDTRONIC:
X Briefly press the cruise control leve rfor-
wards B.
or
X Briefly press the cruise control lever in the
direction of arrow A.
LIM indicator lamp ;in the cruise control
lever goes out. Variable SPEEDTRONIC is
deactivated.
Cruise control or DISTRONIC PLUS is selec-
ted.
Variable SPEEDTRONIC is automatically
deactivated if:
R you depress the accelerator pedal beyond
the pressure point (kickdown), but only if
your current speed does not differ by more
than 20 km/h from the stored speed. You
will hear a warning tone if this is the case.
R on vehicles with manual transmission, if
you shift to a higher gear and as a result,
the engine speed is too low. G
WARNING
It is not possible to deactivate variable Speed-
tronic by braking.
i The last speed stored is cleared when you
switch off the engine. Permanent SPEEDTRONIC You can use the on-board computer to limit
the speed permanently to
avalue between
160 km/h(e.g. for driving on winter tyres) and
the maximum speed ( Ypage 246).
Shortly before the store dspeed is reached, it
appears in the multifunction display.
Permanent SPEEDTRONIC remains active,
even if variable SPEEDTRONIC is deactivated.
You cannot exceed the stored limit speed,
even if you depress the accelerator pedal
beyond the pressure point (kickdown). DISTRONIC PLUS
Important safety notes DISTRONIC PLUS regulates the speed and
automatically helps you maintain the dis-
tance to the vehicle detected in front. DIS-
TRONIC PLUS brakes automatically so that
the set speed is not exceeded.
On long and steep downhill gradients, espe-
cially if the vehicle is laden or towing a trailer,
you must select shift range
1,2or 3in good
time. By doing so, you will make use of the
braking effec tofthe engine. This relieves the
load on the brake system and prevents the
brakes from overheating and wearing too
quickly.
If DISTRONIC PLUS detects a slower-moving
vehicle in front, your vehicle is braked in order
to maintain the preset distance to the vehicle
in front. G
WARNING
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
WARNING
DISTRONIC PLUS is only an aid designed to
assist driving. The driver remains fully respon-
sible for the vehicle's distance from other Driving systems
185Driving and parking
Z

R
if you are currently using COMAND APS or
making a telephone call with COMAND APS
R if the time has been set incorrectly
R in active driving situations, such as when
you change lanes or change your speed
Warning and display messages in the
multifunction display Example: vehicles featuring automatic transmis-
sion with a DIRECT SELECT lever
X Activate ATTENTION ASSIST using the on-
board computer (Y page 242).
Symbol :appears in the multifunction
display.
If ATTENTION ASSIST is active, you will be
warned no sooner than 20 minutes after your
journey has begun. You will the nhear an
intermittent warning tonet wice, and the
Attention Assist: Time for a break? message appears in the multifunction dis-
play.
X
If necessary, take a break.
X Press the abutton to confirm th emes-
sage.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take a break, you will be warned again
after 15 minutes at the earliest. This will only
happen if ATTENTION ASSIST still detects
typical indicators of fatigue or increasing lap-
ses in concentration.
ATTENTION ASSIST is reset and starts
assessing your tiredness again when you con-
tinue your journey if:
R you switch off the engine.
R you take off your seat belt and open the
driver's door, e.g. for a change of drivers or
to take a break. Speed Limit Assist
Important safety notes Speed Limit Assist shows you detected speed
limits in the multifunction display. Data from
the navigation system is also used for this
purpose. If a traffic sign indicating a speed
limit or the end of a speed limit is detected,
it is shown in the multifunction display. If
Speed Limit Assist does not detec tany traffic
signs, the speed limit from the digital road
map is take nand shown in the display.
Speed Limit Assist detects the traffic signs
with a camera attached behind the top of the
windscreen. :
Speed Limit Assist camera G
WARNING
Speed Limit Assist is onl yanaid and may
detect speed limit signs incorrectly or not at
all.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to snow,
rain, fog or spray.
R there is glare, e.g. from the sun or from
oncoming traffic.
R the windscreen is dirty, misted up or cov-
ered, for instance by a sticker, in the vicinity
of the camera.
R the traffic signs are covered, for instance
by dirt, snow or trees. 208
Driving systemsDriving and parking