2015 MERCEDES-BENZ C-Class COUPE seat adjustment

Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 348
Refueling
Fuel gaug e....................................... 31
Important safety notes .................. 148
Notes for AMG vehicles ................. 345
Refueling process .......................... 149
see Fuel
Releasing the parking lock man-
ually (automatic transmission) ........ 148
Remote control Garage door opener ....................... 266
Programming (garage door
opener) .......................................... 266
Replacing bulbs
Important safety notes .................. 114
Overview of bulb types .................. 115
Reporting safety defects .................... 26
Reserve (fuel tank) see Fuel
Reserve fuel
Display message ............................ 222
Warning lamp ................................. 241
see Fuel
Reverse gear
Engaging (automatic transmis-
sion) ............................................... 141
Reversing feature
Panorama sliding sunroo f................ 89
Roller sunblind ................................. 90
Side windows ................................... 86
Trunk lid ........................................... 82
Roadside Assistance (breakdown) .... 23
Roller blind see Roller sunblind
Roller sunblind
Opening/closing .............................. 91
Panorama roof with power tilt/
sliding panel ..................................... 90
Roof carrier ........................................ 252
Roof lining and carpets (cleaning
guidelines) ......................................... 284
Roof load (maximum) ........................ 349
Route (navigation) see Route guidance (navigation)
Route guidance (navigation) ............ 195 S
Safety Child restraint systems .................... 58
Occupant Classification System
(OCS) ............................................... 47
Overview of occupant safety sys-
tems ................................................ 40
Safety system
see Driving safety systems
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 56
Belt force limiters ............................ 57
Cleaning ......................................... 283
Correct usage .................................. 54
Emergency Tensioning Devices ........ 57
Fastening ......................................... 55
Important safety guidelines ............. 53
Releasing ......................................... 56
Safety guidelines ............................. 41
Switching belt adjustment on/off
(on-board computer) ...................... 204
Warning lamp ................................. 233
Warning lamp (function) ................... 57
Seats
Adjusting (electrically) ..................... 96
Adjusting (manually and electri-
cally) ................................................ 96
Adjusting the 4-way lumbar sup-
port .................................................. 98
Adjusting the head restraint ............ 96
Cleaning the cover ......................... 283
Correct driver's seat position ........... 94
Folding the backrests forward/
back ................................................. 97
Important safety notes .................... 95
Seat backrest display message ..... 231
Seat heating problem ...................... 99
Seat ventilation problem ................ 100
Storing settings (memory func-
tion) ............................................... 105
Switching seat heating on/of f......... 98
Switching seat ventilation on/of f.... 99
Sensors (cleaning instructions) ....... 281
Service Center see Qualified specialist workshop Index
15

Problems with the Occupant Classification System
Problem
Possible causes/consequences and
0050
0050Solutions The PASSENGER AIR
BAG OFF indicator
lights up and remains
on.
The person on the
front-passenger seat:
R
has the weight of a
typical adult
R has been determined
by the system not to
be a child The OCS is malfunctioning.
X Make sure that the front passenger is sitting in a correct, upright
position.
X Have the OCS checked as soon as possible at a qualified spe-
cialist workshop.
X Observe the additional display messages in the multifunction
display (Y page 215). G
WARNING
If the 00730074 indicator lamp illuminates and remains illuminated when the weight of a typical
adult or someone larger than a small individual has been detected on the passenger seat, do not allow any occupant to use the passenger seat until the system has been repaired. Problem
Possible causes/consequences and
0050 0050Solutions 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 a
weight up to that of a typical twelve-
month-old child in a
standard 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 sys-
tem are resting securely on the front-passenger seat. If neces-
sary, 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 objects are applying additional weight onto
the seat.
X If the PASSENGER AIR BAG OFF indicator lamp remains off, have
the OCS system checked as soon as possible at a qualified spe-
cialist 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 (Y page 215). Occupant safety
51Safety Z

G
WARNING
If the 00730074 indicator lamp does not illuminate or remains out with the weight of a typical 12-
month-old child in a standard child restraint or less, or is unoccupied, on the front-passenger seat, do not transport a child on the front-passenger seat until the system has been repaired. PRE-SAFE
®
(anticipatory occupant
protection system)
Introduction PRE-SAFE
®
takes preemptive measures to
protect occupants in certain hazardous sit-
uations.
Important safety notes !
Make sure that there are no objects in the
footwell under or behind the seats when
moving the seats back. There is a risk that
the seats and/or the objects could be dam-
aged.
Despite your vehicle being equipped with the PRE-SAFE ®
system, the possibility of per-
sonal injuries occurring as a result of an acci-
dent cannot 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.
Function PRE-SAFE
®
intervenes:
R in emergency braking situations, e.g. when
BAS is activated.
R in critical driving situations, e.g. when phys-
ical limits are exceeded and the vehicle
understeers or oversteers severely.
R vehicles with the Driving Assistance
package: when BAS PLUS intervenes pow-
erfully or the radar sensor system detects
an imminent danger of collision in certain
situations. PRE-SAFE
®
takes the following measures
depending on the hazardous situation detec-
ted:
R the front seat belts are pre-tensioned.
R on vehicles with memory function for the
front-passenger seat: the front-passenger
seat is adjusted if it is in an unfavorable
position.
R if the vehicle skids, the side windows are
closed so that only a small gap remains.
The panorama roof with power tilt/sliding
panel is completely closed.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pre-tensioning. All settings made by
PRE-SAFE ®
can then be reversed.
If the seat belt pre-tensioning is not reduced:
X Move the seat backrest or seat back
slightly when the vehicle is stationary.
The seat belt pre-tensioning is reduced and
the locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. More
information about seat-belt adjustment can
be found under "Seat-belt adjustment"
(Y page 56). NECK-PRO head restraints
The NECK-PRO head restraints increase pro-
tection for the driver's and front passenger's head and neck. In the event of a rear collision
of a certain severity, the NECK-PRO head
restraints on the driver's and the front-
passenger seats are moved forwards and
upwards. This provides better head support. 52
Occupant safetySafety

In a frontal crash, your body would move
too far forward. That would increase the
chance of head and neck injuries. The seat
belt would also apply too much force to the
ribs or abdomen, which could severely
injure internal organs such as your liver or
spleen.
Adjust the seat belt so that the shoulder
section is located as close as possible to
the middle of the shoulder. It should not
touch the neck. Never pass the shoulder
portion of the seat belt under your arm.
R Position the lap belt as low as possible on
your hips and not across the abdomen. If
the lap belt is positioned across your abdo-
men, it could cause serious injuries in a
crash.
R Never wear seat belts over rigid or breaka-
ble objects in or on your clothing, such as
eyeglasses, pens, keys etc., as these might
cause injuries.
R Make sure the seat belt is always fitted
snugly. Take special care of this when wear- ing loose clothing.
R Never use a seat belt for more than one
person at a time. Do not fasten a seat belt
around a person and another person or
other objects at the same time.
R Seat belts should not be worn twisted. In a
crash, you would not have the full width of
the seat belt to distribute impact forces.
The twisted seat belt against your body
could cause injuries.
R Pregnant women should also always use a
lap-shoulder belt. The lap belt portion
should be positioned as low as possible on
the hips to avoid any possible pressure on
the abdomen.
R Place the seat backrest in a position that is
as upright as possible.
R Check your seat belt during travel to make
sure it is properly positioned.
R Never place your feet on the instrument
panel, dashboard, or on the seat. Always keep both feet on the floor in front of the
seat.
R When using a seat belt to secure infant
restraints, toddler restraints, or children in
booster seats, always follow the child seat
manufacturer's instructions. G
WARNING
Do not pass seat belts over sharp edges. They
could tear.
Do not allow the seat belt to get caught in the door or in the seat adjustment mechanism.
This could damage the seat belt.
Never attempt to make modifications to seat
belts. This could impair the effectiveness of
the seat belts.
Fastening seat belts G
WARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats than on the front-passenger seat. Thus, we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and prop- erly secured in an appropriately sized child
restraint system or booster seat recommen-
ded for the size and weight of the child. For
additional information, see the "Children in
the vehicle" section.
A child's risk of serious or fatal injuries is sig-
nificantly increased if the child restraints are
not properly secured in the vehicle and/or the child is not properly secured in the child
restraint. Occupant safety
55Safety Z

X
Adjust the seat and move the backrest to
an almost vertical position (Y page 94).
X Pull the seat belt smoothly through belt
sash guide 0043.
X Without twisting it, guide the shoulder sec-
tion of the seat belt across the middle of
your shoulder and the lap section across
your pelvis.
X Engage belt tongue 0044in buckle 0087.
Seat-belt adjustment: if necessary, the
driver's and front-passenger seat belts
automatically adjust to the upper body
(Y page 56).
X If necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor to securely fasten child restraint systems in the
vehicle. For further information on special
seat belt retractors, see (Y page 61).
For more information about releasing the seat belt with release button 0085, see "Releasing
seat belts" (Y page 56).
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 the belt tongue is engaged in the buckle
and
R the ignition is switched on
The seat-belt adjustment will apply a retrac-
tion force if any slack is detected between the occupant and the seat belt. Do not hold on tothe seat belt tightly while it is adjusting. You
can switch the seat-belt adjustment on and
off in the on-board computer (Y page 204).
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 ®
(anticipatory occupant pro-
tection system)" section (Y page 52).
Releasing seat belts X
Press release button 0085on belt buckle 0087.
X Guide belt tongue 0044to belt sash guide 0043.
i If you have guided the seat belt back, it is
turned 180°. This is necessary in order to
guarantee that the seat belt is not twisted
and that it is routed correctly when the belt is fastened.
! 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, 56
Occupant safetySafety

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment 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 special-
ist workshops (Y page 26). Correct driver's seat position
X
Observe the safety guidelines on seat
adjustment (Y page 95).
X Make sure that seat 0087is adjusted prop-
erly.
Manual and electrical seat adjustment
(Y page 96)
Electrical seat adjustment (Y page 96)
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 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
center of the head restraint.
X Observe the safety guidelines on steering
wheel adjustment (Y page 100).
X Make sure that steering wheel 0043is adjus-
ted properly.
Adjusting the steering wheel manually
(Y page 100)
Adjusting the steering wheel electrically
(Y page 101)
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 53).
X Check whether you have fastened seat
belt 0044properly (Y page 55).
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 102).
X Vehicles with a memory function: save
the seat, steering wheel and exterior mirror 94
Correct driver's seat positionSeats, steering wheel and mirrors

settings with the memory function
(Y
page 105). 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.
The seats can still be adjusted when there is
no SmartKey in the ignition lock. 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, steer-
ing wheel and mirror and fasten your seat belt before starting the engine. G
WARNING
If the driver's seat is not engaged, it could
move unexpectedly while the vehicle is in
motion. This could cause you to lose control of the vehicle. There is a risk of an accident.
Always make sure that the driver's seat is
engaged before starting the engine. G
WARNING
If you adjust the seat height carelessly, you or other vehicle occupants could be trapped andthereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the lever assembly of the seat adjustment sys-
tem.
G
WARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
(Y page 42) and "Children in the vehicle"
(Y page 58).
! 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 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 under or behind the seats when
moving the seats back. There is a risk that
the seats and/or the objects could be dam-
aged.
i Vehicles without the through-loading fea-
ture: the head restraints cannot be
removed from the rear compartment seats.
For more information, contact a qualified
specialist workshop. Seats
95Seats, steering wheel and mirrors Z

i
Further related subjects:
R Rear bench seat through-loading feature
(Y page 250) Adjusting the seats manually and
electrically
You can only adjust the front-passenger seat
manually and electrically. 0043
Backrest angle
0044 Seat height
0087 Seat cushion angle
0085 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 0085and slide the seat forwards
or rearwards.
X Release lever 0085again.
Make sure that you hear the seat engage in
position.
Seat cushion angle X
Turn handwheel 0087in the desired direction. Adjusting the seats electrically
0043
Head restraint height
0044 Seat cushion angle
0087 Seat height
0085 Seat fore-and-aft adjustment
0083 Backrest angle
i You can store the seat settings using the
memory function (Y page 105). Adjusting the head restraints
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, steer-
ing wheel and mirror and fasten your seat belt before starting the engine. G
WARNING
If head restraints are not installed and adjus-
ted 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 instal-
led. 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. 96
SeatsSeats, steering wheel and mirrors