
Problems with the panorama sliding sunroof
G
WARNING
If you do not reset the sliding sunroof after a malfunction or voltage supply interruption, then the
reversing function will malfunction or not work. The sliding sunroof closes with increased or
maximum force. Parts of the body could be trapped in the closing area in the process. This poses an increased risk of injury or even fatal injury.
In such or similar situations always make sure that no parts of the body are in the closing area.
Always reset the sliding sunroof after a malfunction or voltage supply interruption. Problem
Possible causes/consequences and
M
MSolutions The panorama sliding
sunroof cannot be
closed and you cannot
see the cause. If the panorama sliding sunroof is obstructed during closing and
reopens again slightly:
X Immediately after it blocks, pull the 3switch down again to
the point of resistance until the panorama sliding sunroof is
closed.
The panorama sliding sunroof is closed with more force.
If the panorama sliding sunroof is obstructed again during closing and reopens again slightly:
X Immediately after it blocks, pull the 3switch down again to
the point of resistance until the panorama sliding sunroof is
closed.
The panorama sliding sunroof is closed without the automatic
reversing feature. 110
Panorama sliding sunroofOpening and closing

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 25). Correct driver's seat position
G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, 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 mirrors and fasten your seat
belt before starting the engine. X
Observe the safety notes on seat adjust-
ment (Y page 113).
X Make sure that seat =is correctly adjus-
ted.
Manual seat adjustment (Y page 114)
Electrical seat adjustment (Y page 115)
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 posi-
tion
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 correctly (Y page 115).
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 notes on steering col-
umn adjustment (Y page 118).
X Make sure that steering wheel :is adjus-
ted correctly.
Adjusts the steering wheel (Y page 118)
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 44).
X Check whether you have fastened seat
belt ;properly (Y page 46).112
Correct driver's seat positionSeats, steering wheel and mirrors

This function allows you to adjust the dis-
tance between the head restraint and the
back of the head.
X To move forwards: pull the head restraint
forwards in the direction of the arrow until
it engages.
There are a number of detents.
X To move backwards: press and hold
release button :and push the head
restraint backwards.
X When the head restraint is in the desired
position, release the button and make sure
that the head restraint is engaged in posi-
tion.
Rear seat head restraints Adjusting the rear seat head restraint
height X
To raise: pull the head restraint up to the
desired height.
X To lower: press release catch :and push
the head restraint down until it is in the
desired position.
Removing and fitting the rear seat head
restraints
The rear head restraints on the outer seats
can be removed and refitted. For vehicles
with sports seats the rear head restraints
cannot be removed and refitted. X
Fold the seat backrest slightly forwards in
order to remove the head restraint
(Y page 320).
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 4-way lumbar support
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back. :
Raises the backrest contour
; Softens the backrest contour
= Lowers the backrest contour
? Hardens the backrest contour 116
SeatsSeats, steering wheel and mirrors

Problems with the seat heating
Problem
Possible causes/consequences and
M
MSolutions The seat heating has
switched off prema-
turely or cannot be
switched on. The on-board voltage is too low because too many electrical con-
sumers are switched on.
X Switch off electrical consumers that you do not need, such as
the rear window heating or interior lighting.
Once the battery is sufficiently charged, the seat heating will
switch back on automatically. Steering wheel
Important safety notes
G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, 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 mirrors and fasten your seat
belt before starting the engine. G
WARNING
Children could become trapped by the steer-
ing wheel if they adjust it. There is a risk of
injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle. Adjusting the steering wheel
G
WARNING
The steering wheel may move unexpectedly if you adjust it while driving. This could cause
you to lose control of the vehicle. There is a
risk of an accident.
Make sure that the steering wheel is locked
before driving off. Never unlock the steering
wheel when the vehicle is in motion. :
Release lever
; Adjusts the steering wheel height
= Adjusts the steering wheel position (fore-
and-aft adjustment)
X Push release lever :down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired
position.
X Push release lever :up as far as it will go.
The steering column is locked.
X Check if the steering column is locked.
When doing so, try to push the steering
wheel up or down or try to move it in the
fore-and-aft direction. 118
Steering wheelSeats, steering wheel and mirrors

Mirrors
Rear-view mirror
X
Anti-dazzle mode: pivot anti-dazzle
switch :forwards or back. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, 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 mirrors and fasten your seat
belt before starting the engine. G
WARNING
The exterior mirrors reduce the size of the
image. Objects visible in the mirrors are
closer than they appear. You could misjudge
the distance from road users driving behind
you when changing lanes, for instance. There is a risk of an accident.
You should therefore always look over your
shoulder to determine the actual distance
from road users driving behind you. X
Turn the key to position 1or 2in the ignition
lock (Y page 165).
X Press button :for the left-hand exterior
mirror or button ;for the right-hand exte-
rior mirror.
The indicator lamp in the corresponding
button lights 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 adjustment button =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 con- ditions.
The convex exterior mirrors provide a larger
field of vision.
After the engine has been started, the exte-
rior mirrors are automatically heated at low
outside temperatures. Heating takes a maxi-
mum of ten minutes.
i The exterior mirrors can also be heated
manually by switching on the rear window
heating. Mirrors
119Seats, steering wheel and mirrors Z

R
if electrolyte is swallowed, immediately
rinse out your mouth thoroughly. Do not
induce vomiting.
R if electrolyte comes into contact with skin
or eyes or is swallowed, seek medical atten-
tion immediately.
R immediately change out of clothing that has
been in contact with electrolyte.
R if an allergic reaction occurs, seek medical
attention immediately.
The "Automatic anti-dazzle mirrors" function
is only available if the vehicle is equipped with
the "Mirror package".
The rear-view mirror and the exterior mirror
on the driver's side automatically go into anti- dazzle mode if:
R the ignition is switched on and
R incident light from headlamps strikes the
sensor in the rear-view mirror
The mirrors do not go into anti-dazzle mode if reverse gear is engaged or if the interior light-
ing is switched on. Parking position of the exterior mirror
on the front-passenger side
General notes The "Parking position for the exterior mirror
on the front-passenger side" function is only
available if the vehicle is equipped with the
"Memory package".
Setting and storing the parking position You can set the front-passenger side exterior
mirror so that you can see the rear wheel on
that side as soon as you engage reverse gear. You can store this position. Using reverse gear :
Button for the exterior mirror on the driv-
er's side
; Button for the exterior mirror on the front-
passenger side
= Adjustment button
? Memory button M
X Make sure that the vehicle is stationary.
X Turn the key to position 2in the ignition
lock (Y page 165).
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.
Using the memory button You can set the front-passenger side exterior
mirror so that you can see the rear wheel on
that side as soon as you engage reverse gear.
This setting can be stored using memory but-
ton M?.
X Make sure that the vehicle is stationary.
X Turn the key to position 2in the ignition
lock (Y page 165). Mirrors
121Seats, steering wheel and mirrors Z

Useful information
............................126
Exterior lighting ................................ 126
Interior lighting ................................. 132
Replacing bulbs ................................. 133
Windscreen wipers ...........................137 125Lights and windscreen wipers

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 25). Exterior lighting
General notes
For reasons of safety, Mercedes-Benz recom- mends that you drive with the lights switched
on even during the daytime. In some coun-
tries, operation of the headlamps varies due
to legal requirements and self-imposed obli-
gations. Driving abroad
General notes If your journey takes you to countries where
vehicles are driven on the opposite side of the
road to the country in which the vehicle is
registered, your headlamps must be switched to symmetrical dipped beam as soon as pos-
sible after crossing the border (only vehicles
with Intelligent Light System). This prevents
oncoming traffic from being dazzled. Sym-
metrical lights do not illuminate as large an
area of the edge of the carriageway.
Vehicles with bi-xenon or halogen head-
lamps It is not necessary to switch your headlamps
to symmetrical dipped beam when driving in
countries where vehicles are driven on the
opposite side of the road to the country in
which the vehicle is registered. Legal require- ments are fulfilled without switching the
headlamps to symmetrical dipped beam.
Vehicles with Intelligent Light System Before crossing the border, set the head-
lamps to symmetrical dipped beam and after
returning back to asymmetrical dipped beam via the "Dipped-beam headlamps for driving
on the right/left" function in the on-board
computer (Y page 259).
If the headlamps are converted to symmetri-
cal dipped beam, the "motorway mode" and
"extended range foglamps" functions are not
available. Setting the exterior lighting
Setting options Exterior lighting can be set using the:
R light switch
R combination switch (Y page 129)
R headlamp range adjustment (only vehicles
with halogen headlamps) (Y page 128)
R on-board computer (Y page 259)
Light switch Operation
1
W
Left-hand parking lamps
2 X
Right-hand parking lamps
3 T
Side lamps, licence plate and instru-
ment cluster lighting 126
Exterior lightingLights and windscreen wipers