2007 MERCEDES-BENZ SLR belt

75 Safety and Security
Occupant safety
When activated, emergency tensioning
devices remove slack from the belts in
such a way that the seat belts fit more
snugly against the body. Belt force limiters
reduce the force exerted by the seat belts
on occupants during a crash.Children in the vehicle
If an infant or child is traveling with you in
the vehicle:
Secure the child using an infant or child
restraint appropriate to the age and
size of the child.
Make sure the infant or child is proper-
ly secured at all times while the vehicle
is in motion.
Infant and child restraint seats and
information on choosing an appropriate
restraint system can be obtained from any
Mercedes-Benz Center.Warning!G
An emergency tensioning device (ETD) that
was activated must be replaced.
When disposing of the emergency tension-
ing device, our safety instructions must be
followed. These are available at your
authorized Mercedes-Benz Center.
Warning!G
Do not leave children unattended in the
vehicle, even if they are secured in a child
restraint system. The children could

injure themselves on parts of the vehicle

be seriously or fatally injured through
excessive exposure to extreme heat or
cold
Do not expose the child restraint system to
direct sunlight. The child restraint system’s
metal parts, for example, could become very
hot, and the child could be burned on these
parts.
If children open a door, they could

injure other persons

get out of the car and injure themselves
or be injured by following traffic
Do not carry heavy or hard objects in the
passenger compartment unless they are
firmly secured in place.
For more information, please refer to the
“Useful features” section (
page 206)
through (
page 207).
Unsecured or improperly positioned cargo
increases a child’s risk of injury in the event
of

strong braking maneuvers

sudden changes of direction

an accident

76 Safety and Security
Occupant safety
Infant and child restraint systems
We recommend all infants and children be
properly restrained at all times while the
vehicle is in motion.
The passenger lap-shoulder belt has a
special seat belt retractor for secure
fastening of child restraints.
To fasten a child restraint follow child
restraint instructions for mounting. Then
pull the shoulder belt out completely and
let it retract. During seat belt retraction, a
ratcheting sound can be heard to indicate
that the special seat belt retractor is acti-
vated. The belt is now locked. Push down
on child restraint to take up any slack.
To deactivate, release seat belt buckle and
let seat belt retract completely.
The seat belt can again be used in the
usual manner.The use of infant or child restraints is re-
quired by law in all 50 states, the District of
Columbia, the U.S. territories, and all
Canadian provinces.
Infants and small children should be
seated in an appropriate infant or child
restraint system and properly secured in
accordance with the manufacturer’s in-
structions for the child restraint that com-
plies with U.S. Federal Motor Vehicle
Safety Standards 213 and 225 and
Canadian Motor Vehicle Safety Standards
213 and 210.2.
A statement by the child restraint manu-
facturer of compliance with these stan-
dards can be found on the instruction label
on the restraint and in the instruction
manual provided with the restraint.When using any infant, or toddler restraint,
or booster seat, be sure to carefully read
and follow all manufacturer’s instructions
for installation and use.
Please read and observe warning labels
affixed to inside of the vehicle and to infant
or child restraints.
The infant or child restraint are applicable
only to the standard passenger seat. Any
individualization of this seat may restrict
correct fitment of the infant or child
restraint.
Warning!G
Never release the seat belt buckle while the
vehicle is in motion, since the special seat
belt retractor will be deactivated.
Warning!G
Children 12 years old and under must be
seated and properly secured in an appropri-
ate infant or child restraint recommended
for the size and weight of the child.
The infant or child restraint must be properly
secured with the vehicle’s seat belt fully
in accordance with the child seat
manufacturer’s instructions.

77 Safety and Security
Occupant safety
Occupants, especially children, should
never place their bodies or lean their heads
in the area of the door where the
head-thorax air bag inflates. This could
result in serious personal injuries or death
should the head-thorax air bag be triggered.
Always sit nearly upright, properly use the
seat belt and use an appropriately sized in-
fant or toddler restraint or booster seat rec-
ommended for the size and weight of the
child.
Children can be killed or seriously injured by
an inflating air bag. Note the following
important information when you place a
child in the passenger seat:

Your vehicle is equipped with air bag
technology designed to turn off the pas-
senger front air bag and the passenger
knee air bag in your vehicle when the
OCS senses the weight of a typical
12-month-old child or less along with
the weight of a standard appropriate
child restraint on the passenger seat.

A child in a rear-facing child restraint on
the passenger seat will be seriously
injured or even killed if the passenger
front air bag inflates in a collision which
could occur under some circumstances,
even with the air bag technology
installed in your vehicle.

If you install a rear-facing child restraint
on the passenger seat, make sure that
the PASSENGER AIR BAG OFF indicator
lamp is illuminated, indicating that the
passenger front air bag and the passen-
ger knee air bag are deactivated. Should
the PASSENGER AIR BAG OFF indicator
lamp not illuminate or go out while the
restraint is installed, please check in-
stallation. Periodically check the PAS-
SENGER AIR BAG OFF indicator lamp
while driving to make sure the PASSEN-
GER AIR BAG OFF indicator lamp is
illuminated. If the PASSENGER AIR BAG
OFF indicator lamp goes out or remains
out, do not transport a child on the pas-
senger seat until the system has been
repaired. A child in a rear-facing child
restraint on the passenger seat will be
seriously injured or even killed if the
passenger front air bag and/or the
passenger knee air bag inflate.

If you place a child in a forward-facing
child restraint on the passenger seat,
move the seat as far back as possible,
use the proper child restraint recom-
mended 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 passenger front
air bag may or may not be activated
(
page 68).

78 Safety and Security
Occupant safety
Installation of infant and child restraint
systems
This vehicle is equipped with a tether an-
chorage for a top tether strap behind the
passenger seat.
1Cover of anchorage ring
To have better access to the anchorage
ring, move the passenger seat forward
(
page 42).
Remove cover1 in direction of the
arrow from anchorage ring3.
Warning!G
Infants and small children should never
share a seat belt with another occupant.
During an accident, they could be crushed
between the occupant and seat belt.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle
and/or the child is not properly secured in
the child restraint.
Warning!G
Children too big for a toddler restraint must
ride in seats using regular seat belts.
Position the shoulder belt across chest and
shoulder, not face or neck. A booster seat
may be necessary to achieve proper belt
positioning for children over 41 lb until they
reach a height where a lap/shoulder belt fits
properly without a booster.
When the child restraint is not in use,
remove it from the vehicle or secure it with
the seat belt to prevent the child restraint
from becoming a projectile in the event of
an accident.
Do not leave children unattended in the
vehicle, even if the children are secured in a
child restraint system. Unsupervised
children in a child restraint system may use
vehicle equipment and may cause an
accident and/or serious personal injury.

79 Safety and Security
Occupant safety
Guide tether strap according to the
child restraint manufacturer’s
instructions.
Make sure the tether strap is not
twisted.
2Hook
3Anchorage ring
Securely fasten hook2, which is part
of the tether strap, to anchorage
ring3.
Move the passenger seat as far as
possible rearward.
Once the top tether anchorage hook is
attached, the child restraint itself can be
secured.
Properly secure the child restraint us-
ing the passenger seat lap/shoulder
belt (
page 76) and tether anchorage
for top tether strap, fully in accordance
with the child restraint manufacturer’s
instructions.
Tighten the top tether strap according
to the child restraint manufacturer’s
instructions.
Reinstall cover1 after removing the
tether strap.
iFor safety, make sure the hook has attached
to the ring beyond the safety catch, as
illustrated.

275 Operation
Tires and wheels
General:
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 274) indicates
the nominal tire width in mm. Aspect ratio
The aspect ratio2 (
page 274) 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 274) 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 276).Rim diameter
The rim diameter4 (
page 274) is the
diameter of the bead seat, not the
diameter of the rim edge. Rim diameter is
indicated in inches (in).
Tire load rating
The tire load rating5 (
page 274) is a
numerical code associated with the
maximum load a tire can support.
For example, a load rating of 91 corre-
sponds to a maximum load of 1356 lb
(615 kg) the tire is designed to support.
See also “Maximum tire load”
(
page 280) where the maximum load as-
sociated with the load index is indicated in
kilograms and lb.

308 Practical hints
What to do if ...
ProblemPossible cause/consequenceSuggested solution
on for a maximum of 6 seconds
after starting the engine.The telltale reminds you and your passenger
to fasten your seat belts before driving off.Fasten your seat belts.
Regardless of whether the seat belts
are fastened or not, the seat belt tell-
tale always comes on and remains lit
for 6 seconds after starting the
engine.
maximum of 6 seconds after
starting the engine.You have forgotten to fasten your seat belt.Fasten your seat belt.
The warning chime stops sounding.
on while the vehicle is standing
still and the engine is running or
during driving.You and/or your passenger have forgotten to
fasten your seat belts.Fasten your seat belts.
The seat belt telltale goes out.
There are items placed on the passenger seat
and therefore the system senses the passen-
ger seat as being occupied.Remove the items from the passenger
seat and put them in a safe place.
The seat belt telltale goes out.

309 Practical hints
What to do if ...
ProblemPossible cause/consequenceSuggested solution
telltale flashes and you addition-
ally hear an intermittent warning
chime with increasing intensity.The vehicle’s speed once exceeds 15 mph
(25 km/h) and you and/or your passenger
have forgotten to fasten your seat belts.Fasten your seat belts.
The seat belt telltale goes out and the
warning chime stops sounding.
There are items placed on the passenger seat
and therefore the system senses the passen-
ger seat as being occupied.Remove the items from the passenger
seat and put them in a safe place.
The seat belt telltale goes out and the
warning chime stops sounding.
iAfter 60 seconds with an unfastened seat
belt, the warning chime stops sounding and the
seat belt telltale illuminates continuously. The
seat belt telltale will only go out if both, the
driver’s and passenger’s seat belt are fastened,
or the vehicle is standing still and a door is
opened.