
66 Safety and Security
Occupant safety
Safety guidelines for the seat belt, 
emergency tensioning device and 
airbag Your vehicle was originally equipped 
with airbags that are designed to acti-
vate in certain impacts exceeding a 
preset threshold to reduce the poten-
tial and severity of injury. It is important 
to your safety and that of your passen-
ger that you replace deployed airbags 
and repair any malfunctioning airbags 
to make sure the vehicle will continue 
to provide supplemental crash protec-
tion for occupants.
Warning!G
Damaged seat belts or belts that were 
highly stressed in an accident must be 
replaced and their anchoring points 
must also be checked. Use only belts in-
stalled or supplied by an authorized 
Mercedes-Benz Light Truck Center.
No modifications of any kind may be 
made to any components or wiring of 
the SRS. This includes changing or re-
moving any component or part of the 
SRS, the installation of additional trim 
material, badges, etc. over the steering 
wheel hub, passenger front airbag cov-
er, outboard sides of the front seat 
backrests, door trim panels, or door 
frame trims, and installation of addition-
al electrical /electronic equipment on or 
near SRS components and wiring. Keep 
area between airbags and occupants 
free from objects (e.g. packages, purs-
es, umbrellas, etc.).
Airbags and emergency tensioning de-
vices (ETDs) are designed to function on 
a one-time-only basis. An airbag or ETD 
that was activated must be replaced.
Do not pass belts over sharp edges. 
They could tear.
Do not make any modification that could 
change the effectiveness of the belts.
Do not bleach or dye seat belts as this 
may severely weaken them. In a crash 
they may not be able to provide ade-
quate protection.
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.
Airbag system components will be hot 
after an airbag has inflated. Do not 
touch. 

67 Safety and Security
Occupant safety
When you sell your vehicle we strongly 
urge you to give notice to the subsequent 
owner that it is equipped with an SRS by 
alerting them to the applicable section in 
the Operator’s Manual.Front airbags
1Driver airbag
2Passenger front airbag
Driver and front passenger airbags are 
deployed:
in the event of certain frontal impacts
if impact exceeds a preset deployment 
threshold
In addition, improper repair work on the 
SRS creates a risk of rendering the SRS 
inoperative or causing unintended air-
bag deployment. Work on the SRS must 
therefore only be performed by qualified 
technicians. Contact an authorized 
Mercedes-Benz Light Truck Center.
For your protection and the protection 
of others, when scrapping the airbag 
unit or emergency tensioning device, 
our safety instructions must be fol-
lowed. These instructions are available 
from an authorized Mercedes-Benz 
Light Truck Center.
Given the considerable deployment 
speed and the textile structure of the 
airbags, there is the possibility of abra-
sions or other injuries resulting from 
airbag deployment.
Warning!G
In the event that the 1indicator lamp 
comes on while driving, the SRS may not be 
operational. For your safety, we strongly 
recommend that you visit an authorized 
Mercedes-Benz Light Truck Center immedi-
ately to have the system checked; otherwise 
the SRS may not be activated when needed 
in an accident, which could result in serious 
or fatal injury, or it might deploy unexpect-
edly and unnecessarily which could also re-
sult in injury. 

68 Safety and Security
Occupant safety
The airbags will not deploy in impacts 
which do not exceed the system’s deploy-
ment thresholds. You will then be protect-
ed by the fastened seat belts.
The passenger front airbag will only be 
deployed if:
the passenger seat is occupied
the 7 indicator lamp in the center 
console is not lit (
page 74)
the impact exceeds a preset deploy-
ment thresholdWindow curtain airbags
The window curtain airbags1 deploy in 
the area of the side windows indicated by 
the arrows.
1Window curtain airbag
The window curtain airbags are deployed:
on the impacted side of the vehicle
in impacts exceeding a preset deploy-
ment threshold
independently of the front airbags
The window curtain airbags are not de-
ployed in impacts which do not exceed the 
system’s deployment threshold.
Seat belts
When the engine is started, the seat-belt 
telltale< illuminates to remind you and 
your passengers to fasten your seat belts. 
If the driver’s seat belt is not fastened be-
fore the engine is started, the seat belt 
telltale< illuminates and a warning 
chime sounds for approximately 
six seconds when the engine is started.
Always wear your seat belt. All vehicle oc-
cupants always need to have their seat 
belts fastened and wear them properly.
In addition, applicable motor vehicle safety 
laws require you to wear seat belts. Even 
where this is not the case, we strongly rec-
ommend that all vehicle occupants have 
their seat belts fastened and wear them 
properly.
For more information, see “Fastening the 
seat belt” (
page 43).
!
Do not place objects heavier than 
20 lbs (9 kg) on the front passenger 
seat. This could cause the passenger 
front airbag to deploy in a crash which 
exceeds the system’s deployment 
threshold. 

69 Safety and Security
Occupant safety
i
For information on infants and children 
traveling with you in the vehicle and re-
straint systems for infants and chil-
dren, see “Children in the vehicle” 
(
page 72).
Warning!G
Always fasten your seat belt before driving 
off. Always make sure your passengers are 
properly restrained, even those sitting in the 
rear and pregnant women.
Failure to wear and properly fasten and po-
sition your seat belt greatly increases your 
risk of injuries and their likely severity in an 
accident. You and your passengers should 
always wear seat belts.
If you are ever in an accident, your injuries 
can be considerably more severe without 
your seat belt properly buckled. Without 
your seat belt buckled, you are much more 
likely to hit the interior of the vehicle or be 
ejected from it. You can be seriously injured 
or killed.
In the same crash, the possibility of injury or 
death is lessened if you are properly wearing 
your seat belt. Airbags can only protect as 
they are designed if the occupants are prop-
erly wearing their seat belts.
Warning!G
Never ride in a moving vehicle with the seat 
backrest in an excessively reclined position 
as this can be dangerous. You could slide 
under the seat belt in a collision. If you slide 
under it, the belt would apply force at the ab-
domen or neck. That could cause serious or 
even fatal injuries. The backrest and seat 
belt provide the best restraint when the 
wearer is in a nearly upright position and the 
belt is properly positioned on the body.
Warning!G
Never let more people ride in the vehicle 
than there are seat belts available. Be sure 
everyone riding in the vehicle is correctly re-
strained with a separate seat belt. Never use 
a seat belt for more than one person at a 
time. 

70 Safety and Security
Occupant safety
Warning!G
Damaged seat belts or belts that were highly 
stressed in an accident must be replaced 
and their anchoring points must also be 
checked.
Only use seat belts which have been ap-
proved by Mercedes-Benz.
Do not make any modifications to the seat 
belts. This can lead to unintended activation 
or to failure.
Do not bleach or dye seat belts as this may 
severely weaken them. In a crash, they may 
not be able to provide adequate protection.
Have all work carried out only by qualified 
technicians. Contact an authorized 
Mercedes-Benz Light Truck Center.
Warning!G
USE SEAT BELTS PROPERLY
Seat belts can only work when used 
properly. Never wear seat belts in any 
other way than as described in this sec-
tion, as that could result in serious inju-
ries in case of an accident.
Each occupant should wear their seat 
belt at all times, because seat belts help 
reduce the likelihood of and potential 
severity of injuries in accidents, includ-
ing rollovers. The integrated restraint 
system includes SRS (driver airbag and 
passenger front airbag, head protection 
window curtain airbags for side win-
dows), ETD (seat belt emergency ten-
sioning device for driver’s seat, front 
passenger seat and the outboard pas-
senger seats). The system is designed to 
enhance the protection offered to prop-
erly belted occupants in certain frontal 
(front airbags and EDT) and side (win-
dow curtain airbags and ETD) impacts 
which exceed preset deployment 
thresholds.
Never wear the shoulder belt under your 
arm, against your neck or off your shoul-
der. In a crash, your body would move 
too far forward. That would increase the 
chance of head and neck injuries. The 
belt would also apply too much force to 
the ribs or abdomen, which could se-
verely injure internal organs such as 
your liver or spleen.
Never wear belts over rigid or breakable 
objects in or on your clothing, such as 
eyeglasses, pens, keys, etc., as these 
might cause injuries.
Position the lap belt as low as possible 
on your hips and not across the abdo-
men. If the belt is positioned across your 
abdomen, it could cause serious injuries 
in a crash.
Never use a seat belt for more than one 
person at a time. Do not fasten a seat 
belt around a person and another per-
son or other objects. 

71 Safety and Security
Occupant safety
Emergency tensioning device (ETD), 
seat belt force limiter
The seat belts for the front and rear outer 
seats are equipped with emergency ten-
sioning devices and belt force limiters.
The ETD is designed to activate in the 
following cases:
in frontal or rear-end impacts exceed-
ing a preset severity level
if the restraint systems are operational 
and functioning correctly, see 
1indicator lamp (
page 62)In an impact, emergency tensioning 
devices remove slack from the belts in 
such a way that the seat belts fit more 
snugly against the body.
Belts should not be worn twisted. In a 
crash, you wouldn’t have the full width 
of the belt to manage impact forces. The 
twisted belt against your body could 
cause injuries.
Pregnant women should also use a 
lap-shoulder belt. The lap belt portion 
should be positioned as low as possible 
on the hips to avoid any possible pres-
sure on the abdomen.
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.
i
The ETDs for the front seats will only 
activate if the respective front seat belt 
is fastened (latch plate properly 
inserted into buckle).
The ETDs for the rear outer seats will 
activate with or without the respective 
seat belt fastened.
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 autho-
rized Mercedes-Benz Light Truck Center.
!
Do not place objects heavier than 
20 lbs (9 kg) on the front passenger 
seat. This could cause the passenger 
front airbag and, with the seat belt 
fastened to secure the object, the ETD 
on the front passenger side to deploy in 
a crash which exceeds the system’s 
deployment threshold. 

73 Safety and Security
Occupant safety
!
The use of infant or child restraints is 
required by law in all 50 states, the 
District of Columbia, the U.S. territo-
ries and all Canadian provinces.
Infants and small children should be 
seated in an appropriate infant or child 
restraint system properly secured by 
a lap-shoulder belt or, if so equipped, 
a child restraint lower anchorage sys-
tem that complies 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 man-
ufacturer of compliance with this stan-
dard can be found on the instruction 
label on the restraint and in the instruc-
tion manual provided with the restraint.
When using any infant or child restraint 
system, 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 vehicle and to infant 
or child restraints.Warning!G
Children 12 years old and under must never 
ride in the front seat, except in a 
Mercedes-Benz authorized BabySmart
TM 
compatible child seat, which operates with 
the BabySmart
TM System installed in the ve-
hicle to deactivate the passenger front air-
bag when it is properly installed. Otherwise 
they will be struck by the airbag when it in-
flates in a crash. If this happens, serious or 
fatal injury can result.
According to accident statistics, children 
are safer when properly restrained in the 
rear seating positions than in the front seat-
ing positions. Infants and small children 
must ride in back seats and be seated in an 
appropriate infant or child restraint system, 
which is properly secured with the vehicle’s 
seat belt and top tether strap, or secured via 
lower anchors and top tether strap, fully in 
accordance with the child seat manufactur-
er’s instructions.
 

74 Safety and Security
Occupant safety
BabySmartTM airbag deactivation 
system
7 
indicator lamp
Special BabySmartTM1 compatible child 
seats, designed for use with the 
Mercedes-Benz system and available at 
any authorized Mercedes-Benz Light Truck 
Center are required for use with the 
BabySmart
TM airbag deactivation system. 
With the special child seat properly in-
stalled, the passenger front airbag will not 
deploy.
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 
the child is not properly secured in the child 
restraint.Warning!G
Children too big for child restraint systems 
must ride in back seats using regular seat 
belts. Position shoulder belt across chest 
and shoulder, 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 properly without a booster.
When the child restraint is not in use, re-
move 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 ac-
cident.
Do not leave children unattended in the ve-
hicle, even if the children are secured in a 
child restraint system. Unsupervised chil-
dren in a child restraint system may use ve-
hicle equipment and may cause serious 
personal injury.
1BabySmartTM is a trademark of Siemens
Automotive Corp.