2005 MERCEDES-BENZ C COUPE belt

74 Safety and SecurityOccupant safetyWhen the OCS senses that the front passen-
ger seat occupant is classified as being
heavier than the weight of a typical
12-month-old child seated in a standard
child restraint or as being a small individual
(such as a young teenager or a small adult),
the 56 indicator lamp will illuminate
for approximately six seconds when the en-
gine is started and then, depending on occu-
pant weight sensor readings from the seat,
remain illuminated or go out. With the
56 indicator lamp illuminated, the
front passenger front air bag is deactivated.
With the 56indicator lamp out, the
front passenger front air bag is activated.
When the OCS senses that the front passen-
ger seat occupant is classified as an adult or
someone larger than a small individual, the
56 indicator lamp will illuminate for
approximately six seconds when the engine
is started and then go out, indicating that
the front passenger front air bag is activat-
ed.
If the 56indicator lamp is
illuminated, the front passenger front air
bag is deactivated and will not be deployed.
If the 56indicator lamp is not illumi-
nated, the front passenger front air bag is
activated and will be deployed:

in the event of certain frontal impacts


if impact exceeds a preset deployment
threshold


independently of the side impact air
bags.
If the front passenger front air bag is
deployed, the rate of inflation will be
influenced by:


the rate of relevant vehicle deceleration
as assessed by the air bag control unit


front passenger's weight category as
identified by the Occupant Classification
System (OCS).
Warning!
G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing position. Thus, we strongly recommend
that children be placed in the rear seats
whenever possible. Regardless of seating
position, children 12 years old and under
must be seated and properly secured in an
appropriate infant or child restraint recom-
mended for the size and weight of the child.
The infant or child restraint must be properly
secured with the vehicle’s seat belt, the seat
belt and top tether strap, or lower anchors
and top tether strap, fully in accordance
with the child seat manufacturer's instruc-
tions.


75 Safety and Security
Occupant safety
Children can be killed or seriously injured by
an inflating air bag. Note the following
important information when circumstances
require you to place a child in the front
passenger seat:

Your vehicle is equipped with air bag
technology designed to turn off the front
passenger front air bag in your vehicle
when the system senses the weight of a
typical 12-month-old child or less along
with the weight of a standard appropri-
ate child restraint on the front passen-
ger seat.


A child in a rear-facing child restraint on
the front passenger seat will be serious-
ly injured or even killed if the front pas-
senger front air bag inflates in a collision
which could occur under some circum-
stances, even with the air bag technolo-
gy installed in your vehicle. The only
means to completely eliminate this risk
is to never place a child in a rear-facing
child restraint in the front seat. We
therefore strongly recommend that you
always place a child in a rear-facing
child restraint in the back seat.


If you must install a rear-facing child re-
straint on the front passenger seat be-
cause circumstances require you to do
so, make sure that the 56 indi-
cator lamp is illuminated, indicating that
the front passenger front air bag is deac-
tivated. Should the 56 indicator
lamp not illuminate or go out while the
restraint is installed, please check in-
stallation. Periodically check the
56 indicator lamp while driving
to make sure the 56indicator
lamp is illuminated. If the 56 in-
dicator lamp goes out or remains out, do
not transport a child on the front pas-
senger seat until the system has been
repaired. A child in a rear-facing child re-
straint on the front passenger seat will
be seriously injured or even killed if the
front passenger front air bag inflates.


If you have to place a child in a
forward-facing child restraint on the
front passenger seat, move the seat as
far back as possible, use the proper
child restraint recommended for the
age, size and weight of the child, and
secure child restraint with the vehicle’s
seat belt according to the child seat
manufacturer's instructions. For
children larger than the typical
12-month-old child, the front passenger
front air bag may or may not be activat-
ed (
page 74).
iDeployment of the driver front air bag
does not mean that the front passenger
front air bag also should have de-
ployed.

76 Safety and SecurityOccupant safety
The 56indicator lamp is located in
the center console.
1Front passenger front air bag off
indicator lamp
The 56indicator lamp1 will be
illuminated, except with the SmartKey
removed or in starter switch position0. The Occupant Classification System
(
page 73) may have determined:


that the seat was empty or occu-
p i e d b y t h e w e i g h t u p t o o r l e s s t h a n
that of a typical 12-month-old child
seated in a standard child restraint
- both instances where the system
suppresses deployment of the front
passenger front air bag even
though the impact met the criteria
and was of sufficient severity to
deploy the driver front air bag.


that the seat was occupied by a
small individual (such as a young
teenager or a small adult) or a child
weighing more than the weight of a
typical 12-month-old child in a stan-
dard child restraint - instances
where the system may suppress
deployment of the front passenger
front air bag even though the im-
pact met the criteria and was of suf-
ficient severity to deploy the driver
front air bag.
Warning!
G
If the 1indicator lamp and the
56indicator lamp are lit at the same
time, there is a malfunction in the Occupant
Classification System. The front passenger
front air bag will be deactivated in this case.
In order to ensure proper operation of the air
bag system and OCS:

Have the system checked as soon as
possible by qualified technicians.
Contact an authorized Mercedes-Benz
Center.


Sit properly belted in a nearly upright
position with your back against the seat
backrest.


Do not lean on the armrests or lift your-
self from the seat by using the handle
over the door as this may cause the OCS
to be unable to correctly approximate
the occupant weight category.


Only have the seat repaired or replaced
by an authorized Mercedes-Benz
Center.


Read and observe all warnings in this
chapter.

79 Safety and Security
Occupant safety

Grip inner side of anchor1 and fold
forward until they lock in place.

Install child seat according to the
manufacturer’s instructions.To fold anchors back

Press down button2 on each anchor
and return the anchors1 to its catch.
iThe child seat must be firmly attached
in the right and left side anchors1.
iNon-LATCH type child seats may also
be used and can be installed using the
vehicle’s seat belt system. Install child
seat according to the manufacturer’s
instructions.Warning!
G
Children too big for a toddler restraint must
ride in seats using regular seat belts. Posi-
tion shoulder belt across chest and shoul-
der, not face or neck. A booster seat may be
necessary to achieve proper belt positioning
for children from 41 lbs until they reach a
height where a lap/shoulder belt fits proper-
ly without a booster.
Before installing the child seat, make sure
anchors
1
are folded out and locked in
place.
Install child seat according to manufactur-
er’s instructions.
T h e c h i l d s e a t m u s t b e f i r m l y a t t a c h e d i n t h e
right and left side anchors
1
.
An incorrectly mounted child seat may come
loose during an accident which could result
in serious injury or death to the child.
Damaged or impact damaged child seats or
child seat anchor fittings must be replaced.
Do not leave children unattended in the
vehicle, even if the children are secured in a
child restraint system.

107 Controls in detail
Memory function*
Memory function*
You can store up to three different settings
per SmartKey.
The following settings are saved for each
stored position:

Driver’s seat, backrest and head
restraint position


Steering wheel position


Exterior rear view mirror positions
These key-dependent memory settings
can be deactivated if desired. For informa-
tion on key-dependent memory settings,
see “Setting key-dependency”
(
page 149).The following settings are not
key-dependent. They are stored when
using the buttons on the passenger door:


Front passenger seat, backrest and
head restraint position.
!Prior to operating the vehicle, the driv-
er should check and adjust the seat
height, seat position fore and aft, and
seat backrest angle if necessary, to en-
sure adequate control, reach and com-
fort. The head restraint should also be
adjusted for proper height. See also the
section on air bags (
page 61) for
proper seat positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, opera-
tion and comfort. Both the interior and
exterior rear view mirrors should be ad-
justed for adequate rear vision.
Fasten seat belts. Infants and small
children should be seated in a properly
secured restraint system that complies
with U.S. Federal Motor Vehicle Safety
Standards 213 and 225 and Canadian
Motor Vehicle Safety Standards 213
and 210.2.
Warning!
G
Do not activate the memory function while
driving. Activating the memory function
while driving could cause the driver to lose
control of the vehicle.

241 Controls in detail
Panorama roof with power tilt/sliding panel*
Panorama roof with power tilt/sliding panel*
Opening and closing the roller
sunblinds for the panorama roof with power tilt/sliding panel
The tilt/sliding panel and the roller sun-
blinds are opened and closed electrically.
The switch for the tilt/sliding panel and the
roller sunblinds is on the overhead control
panel.
The roller sunblinds only operate with the
tilt/sliding panel closed.Roof panel switch1, 4 Open roller sunblinds
2, 3 Close roller sunblinds

Switch on the ignition (
page 33).
Warning!
G
When opening or closing the tilt/sliding pan-
el, make sure there is no danger of anyone
being harmed by the opening or closing pro-
cedure.
If the tilt/sliding panel is closed with the
convenience closing feature and becomes
blocked, it will not open automatically.
Should this occur, press the Œbutton on
the SmartKey and hold it down; the tilt/slid-
ing panel opens again.
The panorama roof with power tilt/sliding
panel is made out of glass. In the event of an
accident, the glass may shatter. This may
result in an opening in the roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening also presents a potential for injury
for occupants wearing their seat belts prop-
erly as entire body parts or portions of them
may protrude from the passenger compart-
ment.
When leaving the vehicle, always remove the
SmartKey from starter switch, take it with
you, and lock the vehicle. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Unsupervised
use of vehicle equipment can cause an acci-
dent and/or serious personal injury.

243 Controls in detail
Panorama roof with power tilt/sliding panel*
Warning!
G
When opening or closing the tilt/sliding pan-
el, make sure there is no danger of anyone
being harmed by the opening or closing pro-
cedure.
The opening procedure of the tilt/sliding
panel can be immediately halted by releas-
ing the switch or, if the switch was moved
past the resistance point and released, by
moving the switch in any direction.
The closing procedure of the tilt/sliding
panel can be immediately halted by releas-
ing the switch.
The panorama roof with power tilt/sliding
panel is made out of glass. In the event of an
accident, the glass may shatter. This may re-
sult in an opening in the roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening also presents a potential for injury
for occupants wearing their seat belts prop-
erly as entire body parts or portions of them
may protrude from the passenger compart-
ment.
When leaving the vehicle, always remove the
SmartKey from starter switch, take it with
you, and lock the vehicle. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Unsupervised
use of vehicle equipment can cause an acci-
dent and/or serious personal injury.
!To avoid damaging the seals, do not
transport any objects with sharp edges
which can stick out of the tilt/sliding
panel. Do not open the tilt/sliding pan-
el if there is snow or ice on the roof, as
this could result in malfunctions.
The tilt/sliding panel can be opened or
closed manually should an electrical
malfunction occur (
page 381).

314 OperationTires and wheelsTire size designation, load and speed
rating
1Tire width
2Aspect ratio in %
3Radial tire code
4Rim diameter
5Tire load rating
6Tire speed ratingGeneral:
Depending on the design standards used,
the tire size molded into the sidewall may
have no letter or a letter preceding the tire
size designation.
No letter preceding the size designation
(as illustrated above): Passenger car tire
based on European design standards.
Letter “P” preceding the size designation:
Passenger car tire based on U.S. design
standards.
Letter “LT” preceding the size designation:
Light Truck tire based on U.S. design
standards.
Letter “T” preceding the size designation:
Temporary spare tires which are high
pressure compact spares designed for
temporary emergency use only. Tire width
The tire width1 (
page 314) indicates
the nominal tire width in mm.
Aspect ratio
The aspect ratio2 (page 314) is the
dimensional relationship between tire
section height and section width and is
expressed in percentage. The aspect ratio
is arrived at by dividing section height by
section width.
Tire code
The tire code3 (
page 314) indicates
the tire construction type. The “R” stands
for radial tire type. Letter “D” means diag-
onal or bias ply construction; letter “B”
means belted-bias ply construction.
At the tire manufacturer’s option, any tire
with a speed capability above 149 mph
(240 km/h) can include a “ZR” in the size
designation (for example: 245/40 ZR 18).
For additional information, see “Tire speed
rating” (
page 316).
iFor illustration purposes only. Actual
data on tires is specific to each vehicle
and may vary from data shown in above
illustration.