Rear fog lamp
Displa ymessage ............................ 258
Switching on/off ........................... 136
Rear seats
Display message ............................ 272
Rear view camera
Cleaning instructions .....................323
Function/notes ............................. 212
Switching on/off ........................... 212
Rear-view mirror
Anti-glare (manual )........................ 127
Dipping (automatic) .......................129
Rear window blind ............................295
Rear window defroster Problem (malfunction) ...................158
Switching on/off ........................... 157
Refrigerant (air-conditioning
system)
Important safety notes ..................389
Refueling
Fuel gauge ....................................... 31
Important safety notes ..................179
Refueling proces s.......................... 180
see Fuel
Remote control
Garage door opene r....................... 305
Programming (garage door opener) 306
Replacing bulbs
Important safety notes ..................142
Overview of bul btypes .................. 143
Reporting safety defects ....................26
Reserve (fuel tank) see Fuel
Reserve fuel
Display message ............................ 262
Warning lamp ................................. 282
see Fuel
Residual heat (climate control) ........158
Restraint system see SRS (Supplemental Restraint
System)
Reversing feature
Panorama sliding sunroo f.............. 111
Roller sunblinds ............................. 112
Side windows ................................... 94
Sliding sunroo f............................... 111
Trun klid .......................................... .91Reversing lamps (displa
ymessage) 259
Roadside Assistance (breakdown) ....23
Roll bar Display message ............................ 253
Operation ........................................ .55
Rolle rsunblind
Panorama roof with power tilt/
sliding panel .................................. 112
Rea rwindow .................................. 295
Roof
Overview .......................................... 99
see Soft top
Roof lining and carpets (cleaning
guidelines) ......................................... 326
Roof load (maximum) ........................390 S
Safety Childre ninthe vehicle ..................... 62
Child restraint systems ....................62
Occupant Classification System
(OCS) ............................................... 50
Safety system
see Driving safety systems
Seat belts
Adjusting the driver's and front-
passenger sea tbelt ......................... 60
Automatic comfort-fit feature ..........62
Belt force limiters ............................ 61
Cleaning ......................................... 326
Correct usage .................................. 58
Emergency Tensioning Devices ....... .61
Fastening ......................................... 59
Important safety guidelines .............57
Releasing ......................................... 60
Safety guidelines ............................. 43
Switching belt adjustment on/off
(on-board computer) ......................246
Warning lamp ................................. 276
Warning lamp (function) ................... 61
Seats
Adjusting (electrically). ..................118
Adjusting the 4-way lumbar
support .......................................... 121
Adjusting the head restraint ..........118
Adjusting the multicontour seat ..... 121
Cleaning the cover .........................325 Index
15
Problem Possible causes/consequences and
0001 Solutions
The PASSENGER AIR
BAG OFF indicator
lamp does not light up
and/or stays on.
The front-passenger
seat is:
R
unoccupied
R occupied with the
weight of a child up
to twelve months old
in a child restraint
system The OCS is malfunctioning.
X
Make sure there is nothing between the seat cushion and the
child seat.
X Make sure that the backrest and base of the child restraint
system are resting securely on the front-passenger seat. If
necessary, adjust the position of the front-passenger seat.
X When installing the child restraint system, make sure that the
seat belt is tight. Do not pull the seat belt tight with the front-
passenger seat adjustment .This could result in the seat belt
being pulled too tightly.
X Check the installation of the child restraint system.
X Make sure that no objectsa re applying additional weight onto
the seat.
X If the PASSENGER AIR BAG OFF indicator lamp remains off, have
the OCS checked immediatel yataqualified specialist
workshop. Do not transport a child on the front-passenger seat
until the OCS has been repaired.
X Observe the additional display messages in the multifunction
display ( Ypage 256). Roll bar (Cabriolet)
G
DANGER
If the roll bar is malfunctioning, the 0013
Malfunction Service Required message
appears in the multifunction display. The roll
bars will then possibly not be extended in the
event of an accident. This could result in
severe or even fatal injuries to you and other
occupants. In this case, visit a qualified
specialist workshop immediately and have
the roll bar checked. G
WARNING
Ensure that the area around the roll bars/rear
head restraints is kept clear. Otherwise,
someone could be injured by the roll bars
when they are triggered.
The roll bars are under the rear head
restraints. They are extended if systems
detec tthat the vehicle is in danger of
overturning. When the roll bars are extended, the rear
head restraints also extend automatically.
Once the roll bars are extended, you can no
longer lower the rear head restraints. The soft
top can no longer be closed. In this case, visit
the nearest qualified specialist workshop. NECK-PRO head restraints
Important safety notes G
WARNING
Do not secure any objects (e.g. coat hangers)
on the NECK-PRO head restraints. Otherwise,
the NECK-PRO head restraints may not
function properly, or in the event of a rear-end
collision may not be able offer the level of
protection they are designed to provide. G
WARNING
Seat or head restraint covers can cause a
malfunction when the NECK-PRO head Occupant safety
55Safety
Z
possibility of personal injuries occurring as a
result of an acciden tcannot be eliminated.
Always adapt your driving style to suit the
prevailing road and weather conditions and
maintain a safe distance from the vehicle in
front. Drive carefully.
PRE-SAFE ®
intervenes:
R if BAS intervenes, e.g. in emergency
braking situations.
R if BAS PLUS intervenes powerfully — on
vehicles with DISTRONIC PLUS.
R if, on vehicles with DISTRONIC PLUS, the
radar sensor system detect sanimminent
dange rofcollision in certain situations.
R in critical driving situations, e.g. when
physical limits are exceeded and the
vehicle understeers or oversteers severely.
PRE-SAFE ®
takes the following measures
depending on the hazardous situation
detected:
R the front seat belts are pre-tensioned.
R the front-passenger seat is adjusted if it is
in an unfavorable position.
R the air pressure in the side bolsters of the
seat cushion and seat backrest of the front
multicontour seats is increased.
R Coupe: if the vehicle skids, the panorama
roof with power tilt/sliding panel and the
front side windows are closed so that only
a small gap remains.
R Cabriolet: if the vehicle skids, the front side
windows are closed so that only a small gap
remains.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pre-tensioning. The air pressure in
the side bolsters on the multicontour seat is
reduced again. All settings made by PRE-
SAFE ®
can then be reversed.
If the seat belts are not released:
X When the vehicle is stationary, move the
backrest or seat back slightly.
The seat belt pre-tensioning is reduced and
the locking mechanism is released. Information about seat belt adjustment, a
convenience function integrated into PRE-
SAFE
®
, can be found in the "Seat belt
adjustment" section (Y page 60). Seat belts
Important safety notes G
WARNING
The seat belt does not offer the intended level
of protection if the backrest is not in the
upright position. When braking or in the event
of an accident, you could slide underneath the
seat belt and sustain abdomen or neck
injuries, for example. This poses an increased
risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always make sure that the seat
is in the upright position. G
WARNING
Seat belts cannot protect as intended, if:
R they are damaged, extremely dirty,
bleached or dyed
R the seat belt buckle is damaged or
extremely dirty
R the Emergency Tensioning Devices or the
belt anchorage has been modified.
Damage caused to seat belts in an accident
may not be visible, e.g. by splinters of glass.
Modified or damaged seat belts can tear or
fail, for example in the event of an accident.
Modified Emergency Tensioning Devices may
be deployed unintentionally or fail to be
deployed when required. There is an
increased risk of injury, possibly even fatal.
Never modify seat belts, Emergency
Tensioning Devices, seat belt anchorages and
inertia reels. Ensure that seat belts are not
damaged or worn and are clean.
Only use seat belts that have been approved
for your vehicle by Mercedes-Benz. Occupant safety
57Safety Z
If you press seat-bel
textender button 0020
afte rthis, seat-belt extender 0002will not
extend. Seat belt (example: Coupe)
X
Adjust the seat and move the backrest to
an almost vertical position (Y page 116).
X Pull the seat belt smoothly out of seat-belt
extender 0002.
X Without twisting it, guide the shoulder
section of the seat belt across the middle
of your shoulder and the lap section across
your pelvis.
X Engage belt tongue 0003in buckle 0023.
Seat-belt adjustment:ifn ecessary, the
driver's and front-passenger seat belts
automatically adjust to the upper body
(Y page 60).
X If necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
Information on releasing the seat belt with
release button 0022(Ypage 60).
Seat belt adjustment The seat-belt adjustment function adjusts the
driver's and front-passenger seat belt to the
upper body of the occupants. The belt strap is tightened slightly when:
R
you engage the belt tongue in the belt
buckle and you then turn the SmartKey to
position 2in the ignition lock.
R the SmartKey is in position 2in the ignition
lock and you then engage the belt tongue
in the buckle once the seat-belt extender
has retracted.
The seat-belt adjustment will apply a
retraction 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. You can switch the seat-belt
adjustment on and off in the on-board
computer (Y page 246).
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. More
information about PRE-SAFE ®
can be found
under "PRE-SAFE ®
(preventative occupant
protection)" (Y page 56).
Releasing seat belts !
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.
Damaged seat belts can no longer fulfill
their protective function and must be
replaced. Visit a qualified specialist
workshop. 60
Occupant safetySafety
Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 25).Correct driver's seat position
G
WARNING
You could lose control of your vehicle if you
do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R faste nthe seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine. X
Observe the safety guidelines on seat
adjustment (Y page 117).
X Make sure that seat 0023is adjusted
properly.
Electrical seat adjustment (Y page 118)
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 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 cushion angle so that
your thighs are gently supported.
R you can depress the pedals properly.
X Check whether the head restraint is
adjusted 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 center of the head restraint.
X Observe the safety guidelines on steering
wheel adjustment (Y page 124).
X Make sure that steering wheel 0002is
adjusted properly.
Adjusting the steering wheel electrically
(Y page 125)
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
instrumentc luster clearly.
X Observe the safety guidelines for seat belts
(Y page 57).
X Check whether you have fastened seat
belt 0003properly (Y page 59).116
Correct driver's seat positionSeats, steering wheel and mirrors
The seat belt should:
R
fit snugly across your body
R be routed across the middle of your
shoulder
R be routed in your pelvic area across the hip
joints
X Before starting off, adjust the rear-view
mirror and the exterior mirrors in such a
way that you have a good view of road and
traffic conditions (Y page 127).
X Vehicles with a memory function: save
the seat, steering wheel and exterior mirror
settings with the memory function
(Y page 130). Seats
Important safety notes
G
WARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle. G
WARNING
You could lose control of your vehicle if you
do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine. G
WARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjustmen
tbuttons and become trapped.
There is a ris kofinjury.
While moving the seats, make sure tha tyour
hands or other body parts do not get under
the lever assembly of the seat adjustment
system. G
WARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. There is arisk of injury.
Make sure when adjusting aseat that no one
has any body parts in the sweep of the seat. G
WARNING
If head restraints are not installed and
adjusted correctly, they cannot provide
protection as intended. There is an increased
risk of injury in the head and neck area, e.g.
in the event of an accident or when braking.
Always drive with the head restraints
installed. Before driving off, make sure for
every vehicle occupant that the center of the
head restraint supports the back of the head
at about eye level. G
WARNING
The seat belt does not offer the intended level
of protection if you have not moved the
backrest to an almost vertical position .When
braking or in the event of an accident, you
could slide underneath the seat belt and
sustain abdomen or neck injuries, for
example. This poses an increased risk of
injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder. Seats
117Seats, steering wheel and mirrors Z
!
To avoid damage to the seats and the seat
heating, observe the following information:
R keep liquids from spilling 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 "Interior care".
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
materials, e.g. blankets, coats, bags,
seat covers, child seats or booster seats.
! Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
i The head restraints in the front seats are
installed with the NECK-PRO system
(Y page 55). For this reason, it is not
possible to remove the head restraints
from the front seats.
For more information, contact a qualified
specialist workshop. Adjusting the seats
0002
Head restraint height
0003 Seat cushion angle
0023 Seat height
0022 Seat fore-and-aft adjustment
0020 Backrest angle
i If PRE-SAFE ®
is triggered, the front-
passenger seat will be moved to a better
position if it was previouslyinan
unfavorable position.
i You can store the seat settings using the
memory function (Y page 130).
i Vehicles with the through-loading
feature: if you fold down a rear seat
backrest, the respective front seat is
moved forwards slightly if necessary. This
prevents the seats from colliding. Adjusting the head restraints
Important safety notes G
WARNING
You could lose control of your vehicle if you
do the following while driving:
R adjust the driver's seat ,head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine. 118
SeatsSeats, steering wheel and mirrors
G
WARNING
If head restraints are not installed and
adjusted correctly, they cannot provide
protection as intended. There is an increased
risk of injury in the head and neck area, e.g.
in the event of an accident or when braking.
Always drive with the head restraints
installed. Before driving off, make sure for
every vehicle occupant that the center of the
head restraint supports the back of the head
at about eye level.
General notes Observe the important safety notes regarding
the seats (Y page 117).
Do not rotate the head restraints of the front
and rear seats. Otherwise, you cannot adjust
the height and angle of the head restraints to
the correct position.
Adjusting the height of the head
restraints electrically X
To adjust the head restraint height: slide
switch for head restraint adjustment 0002up
or down in the direction of the arrow. Rear seat head restraints Lowering and extending the rear seat
head restraints from the front (Cabriolet)
X
Turn the SmartKey to position 2in the
ignitio nlock (Y page 165).
X To lower: press button 0002.
The head restraints move to the lowest
position.
If AIRCAP is activated, the right-hand
indicator lamp on the AIRCAP button goes
out.
X To extend: press button 0002again.
The head restraints only move into the
central position if AIRCAP is activated and
no rear seat belt has been fastened.
If AIRCAP is activated, the right-hand
indicator lamp on the AIRCAP button
comes on.
i Please see further information on AIRCAP
(Y page 107). Lowering the head restraints in the
rear compartment manually
(Cabriolet)
If the head restraints in the rear compartment
are in the upper position, the soft top cannot
be closed fully. Seats
119Seats, steering wheel and mirrors Z