Example: Sedan
X
Press release button ? on belt buckle =.
X Slide belt tongue ; back to belt sash
guide :.
Belt warning for the driver and front
passenger Regardless of whether the driver's and front-
passenger seat belts have already been
fastened, the 7 seat belt warning lamp
lights
up for six seconds each time the engine
is started. It then goes out if the driver and
the front passenger have fastened their seat
belts.
If the driver's seat belt is not fastened when
the engine is started, an additional warning
tone will sound. The warning tone goes out
after approximately six seconds or once the
driver's seat belt is fastened.
If after six seconds the driver or front
passenger have not fastened their seat belts
and the doors are closed, the 7 seat belt
warning lamp lights up:
R until the driver's or front passenger's seat
belt is fastened
R once the vehicle has exceeded a speed of
15 mph (25 km/h), in addition a warning
tone will sound with increasing intensity for up to 60 seconds or until the driver's or
front-passenger seat belt is fastened.
If the driver/front passenger unfasten their
seat belt while the vehicle is in motion, the
7 seat belt warning lamp lights up and a
warning tone sounds again.
The warning tone ceases after 60 seconds
even if the driver or front passenger has still
not fastened their seat belt. The 7 seat
belt
warning lamp stops flashing but remains
illuminated.
After the vehicle comes to a standstill, the
warning tone is reactivated and the 7 seat
belt warning lamp flashes again if the vehicle
speed again exceeds 15 mph (25 km/h).
The 7 seat belt warning lamp only goes
out if:
R both the driver and the front passenger
have fastened their seat belts.
or
R the vehicle is stationary and a door is open.
i For more information on the 7 seat
belt warning lamp, see "Warning and
indicator lamps in the instrument cluster,
seat belts" ( Y page 276).
Emergency Tensioning Devices, belt
force limiters G
WARNING
Pyrotechnic Emergency Tensioning Devices
that have been deployed must be renewed.
For
your safety, when disposing of Emergency
Tensioning Devices, always observe the
safety instructions. These are available from
any authorized Mercedes-Benz Center.
The PRE-SAFE ®
system has electrically
operated reversible pre-tensioners that do
not require replacement after activation.
! If the front-passenger seat is not
occupied, do not engage the seat belt
tongue in the buckle on the front-
passenger seat. Otherwise, the Emergency Occupant safety
59
Safety Z
Tensioning Device could be triggered in the
event of an accident.
The front seat belts and the outer seat belts
in the rear are equipped with Emergency
Tensioning Devices and belt force limiters.
The
ETDs tighten the seat belts in an accident,
pulling them close against the body.
The ETDs do not correct incorrect seat
positions or incorrectly fastened seat belts.
The ETDs do not pull vehicle occupants back
towards the backrest.
If the seat belt is also equipped with a seat
belt force limiter and this is triggered, the
force exerted by the seat belt on the vehicle
occupant is reduced.
When triggered, seat belt force limiters help
to reduce the peak force exerted by the seat
belt on the vehicle occupant.
The belt force limiters for the front seats are
synchronized with the front air bags, which
take on a part of the deceleration force. This
results in the force exerted on the occupant
being distributed over a greater area.
The ETDs can only be activated when:
R the ignition is switched on.
R the restraint systems are operational; see
"SRS warning lamp" ( Y page 41).
R
R the belt tongue is engaged in the buckle on
each of the lap-shoulder belts in the front.
R the front-passenger seat is occupied and
the belt tongue is engaged in the buckle on
the front-passenger side.
The ETDs on the outside seats in the rear
compartment are triggered independently of
the lock status of the seat belts.
The ETDs are triggered depending on the type
and severity of an accident:
R if, in the event of a head-on or rear-end
collision, the vehicle decelerates or
accelerates rapidly in a longitudinal direction during the initial stages of the
impact
R if,
in the event of a side impact, on the side
opposite the impact the vehicle
decelerates or accelerates rapidly in a
lateral direction
R if, in certain situations where the vehicle
overturns, the system determines that it
can provide additional protection
If the ETDs are deployed, you will hear a bang,
and a small amount of powder may also be
released. Only in rare cases will the bang
affect your hearing. The powder that is
released generally does not constitute a
health hazard. The 6 SRS warning lamp
lights up. Children in the vehicle
Child restraint systems
Important safety notes G
WARNING
According to accident statistics, children are
safer when properly restrained in the rear
seating positions than in the front seating
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 restraint, toddler restraint, or booster
seat recommended 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 instructions.
Occupants, especially children, should always
sit as upright as possible, wear the seat belt
properly and use an appropriately sized infant
restraint, toddler restraint, or booster seat
recommended for the size and weight of the
child. 60
Children in the vehicle
Safety
Special seat belt retractor
G
WARNING
If you release the seat belt when driving, the
special seat belt retractor is deactivated.
The released seat belt cannot be engaged
again while driving, because the inertia reel
pulls in the seat belt a small distance. The
child restraint system is no longer properly
secured.
There is an increased risk of serious
injury or even fatal injury.
Always keep the seat belt of the activated
special seat belt retractor engaged when
driving.
With the exception of the driver's seat belt
and the seat belts on the folding bench seat
in the cargo compartment, all seat belts in the
vehicle are equipped with a special seat belt
retractor. When activated, the special seat
belt retractor ensures that the seat belt will
not slacken once the child restraint system
has been secured.
Installing a child restraint system:
X Always comply with the manufacturer's
installation instructions.
X Pull the seat belt smoothly from the seat
belt retractor.
X Engage the seat belt tongue in the belt
buckle.
Activating the special seat belt retractor:
X Pull the seat belt out fully and let the seat
belt retractor retract it again.
While
the seat belt is retracting, you should
hear a ratcheting sound. The special seat
belt retractor is activated.
X Push down on the child restraint system to
take up any slack. Removing a child restraint system/
deactivating the special seat belt retractor:
X
Always comply with the manufacturer's
installation instructions.
X Press the seat belt release button and
guide the belt tongue to the belt outlet.
The special seat belt retractor is
deactivated.
LATCH-type (ISOFIX) child seat anchors
in the rear G
WARNING
Children that are too large for a child restraint
must travel in seats using normal seat belts.
Position shoulder belt across the chest and
shoulder, not face or neck.
A booster seat may be necessary to achieve
proper seat belt positioning for children over
41 lb (18 kg) until they reach a height where
a lap/shoulder belt fits properly without a
booster.
Install the child restraint system in
accordance with the manufacturer's
instructions.
Attach the child restraint system to both
securing rings.
An
incorrectly installed child restraint system
could come loose during an accident and
seriously or even fatally injure the child.
Child restraint systems or child seat securing
rings that are malfunctioning or damaged as
the result of a collision must be replaced.
! When installing the child restraint system,
make sure that the seat belt for the middle
seat does not get trapped. The seat belt
could otherwise be damaged. Children in the vehicle
63
Safety Z
G
WARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
BAS operates in emergency braking
situations. If you depress the brake pedal
quickly,
BAS automatically boosts the braking
force, thus shortening the stopping distance.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated. BAS PLUS (Brake Assist System Plus)
i Observe the "Important safety notes"
section ( Y page 67).
BAS PLUS is only available in vehicles
equipped with DISTRONIC PLUS.
BAS PLUS provides braking assistance in
hazardous situations at speeds greater than
4 mph (7 km/h) and uses radar sensor
technology to assess the traffic situation.
With
the help of the radar sensor system, BAS
PLUS can detect obstacles that are in the
path of your vehicle for an extended period of
time.
BAS PLUS can also react to stationary
obstacles, e.g. stopped or parked vehicles, at
speeds of up to approximately 40 mph
(70 km/h).
To prevent a front-end collision, BAS PLUS
calculates the brake force necessary if:
R you approach an obstacle, and
R BAS PLUS has detected a risk of collision
For speeds above 20 mph (30 km/h): if you
apply the brakes forcefully, BAS PLUS
automatically increases the braking force to
a level suitable for the traffic conditions.
For speeds below 20 mph (30 km/h): if you
apply the brakes, BAS PLUS is activated.
Braking is performed as late as possible. If BAS PLUS demands particularly high
braking force, preventative passenger
protection measures (PRE-SAFE
®
) are
activated simultaneously.
X Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
BAS PLUS is deactivated and the brakes
function as usual, if:
R you release the brake pedal.
R there
is no longer any danger of a rear-end
collision.
R no obstacle is detected in front of your
vehicle.
For BAS PLUS to assist you when driving, the
radar sensor system must be:
R switched on (Y page 241)
R operational ( Y page 262)
If the radar sensor system is malfunctioning,
BAS PLUS will not be available. The brake
system is still available with complete brake
boosting effect and BAS. G
WARNING
BAS PLUS cannot always clearly identify
objects and complex traffic situations. BAS
PLUS cannot intervene in these cases. There
is a risk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else
covering the sensors
R snow or heavy rain
R interference by other radar sources
R the possibility of strong radar reflections,
for example in parking garages
R a narrow vehicle traveling in front, e.g. a
motorbike
R a
vehicle traveling in front on a different line
relative to the center of your vehicle 68
Driving safety systems
Safety
ignition lock. The SmartKey must be in the
vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
X To unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key :
Release catch
; Mechanical key
X Push release catch : in the direction of
the arrow and at the same time remove
mechanical key ; from the SmartKey.SmartKey battery
Important safety notes G
WARNING
Batteries contain toxic and caustic
substances. For this reason, keep batteries
out of the reach of children.
If
a battery has been swallowed, seek medical
help immediately. G
WARNING
The SmartKey batteries contain perchlorate
material, which may require special handling and regard for the environment. Observe
government disposal guidelines. California
residents, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Mercedes-Benz recommends that you have
the
batteries replaced at a qualified specialist
workshop.
Checking the battery X
Press the & or % button.
The battery is working properly if battery
check lamp : lights up briefly.
The battery is discharged if battery check
lamp : does not light up briefly.
X Change the battery ( Y page 81).
i If
the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the & or % button:
R locks or
R unlocks the vehicle
i You can get a battery in any qualified
specialist workshop.
Replacing the battery You require a CR 2025 3 V cell battery.
X
Take the mechanical key out of the
SmartKey (Y page 80). SmartKey
81
Opening/closing Z
make sure that there is sufficient clearance
above and behind the trunk lid/tailgate.
Do
not leave the SmartKey in the trunk/cargo
compartment. You could otherwise lock
yourself out.
Sedan without trunk lid remote closing
feature: the trunk lid can be:
R opened and closed manually from outside
R opened automatically from outside
R opened automatically from inside
R locked separately
R opened with the emergency release button
R unlocked with the mechanical key
Sedan with trunk lid remote closing
feature: the trunk lid can be:
R opened and closed manually from outside
R opened and closed automatically from
outside
R opened and closed automatically from
inside
R locked separately
R opened with the emergency release button
R unlocked with the mechanical key
Wagon: you can:
R open and close the tailgate manually from
outside
R open the tailgate manually from inside
(Wagon with a folding bench seat)
R open and close the tailgate automatically
from outside
R open and close the tailgate automatically
from inside
R limit the opening angle of the tailgate
R unlock the tailgate using the mechanical
key Opening/closing from outside
Opening Handle (example: Sedan)
X
Press the % button on the SmartKey.
X Sedan: pull handle :.
X Raise the trunk lid.
Wagon: if you pull handle : and keep it in
this position, you can open the tailgate
manually. If you release the handle, the
tailgate opens automatically.
Closing G
WARNING
To prevent possible personal injury, always
keep hands and fingers away from the cargo
compartment opening when closing the
tailgate. Be especially careful when small
children are around. Recess (example: Sedan)88
Trunk/cargo compartment
Opening/closing
can simultaneously close and lock the trunk
lid.
Wagon: on vehicles with KEYLESS-GO, you
can simultaneously close and lock the
tailgate.
X
To close: press closing button : in the
trunk lid/tailgate.
X To close and lock simultaneously:
Press closing button ; in the trunk lid/
tailgate.
i If you leave a KEYLESS-GO key in the
trunk/cargo compartment, the trunk lid/
tailgate will not lock. Opening/closing automatically from
inside
Important safety notes G
WARNING
Keep an eye on the area at the rear end of the
vehicle when operating the trunk lid/tailgate
with
the remote operating switch on the door.
Monitor the entire closing procedure to
ensure that there is no risk of injury to anyone
near the vehicle.
Release the switch on the door to interrupt
the closing procedure.
The remote operating switch can also be used
if the SmartKey has been removed from the
starter switch or the KEYLESS-GO key has
been removed from the vehicle. Never leave
children with no adult supervision in the
vehicle or with access to an unlocked vehicle.
If unsupervised children have access to a
vehicle, it could lead to an accident and/or
serious injury. G
WARNING
Ensure that the trunk lid/tailgate is closed
when
the engine is running and the vehicle is
in motion. Among other dangers, deadly
carbon monoxide (CO) may enter the vehicle
interior and cause unconsciousness and even
death. Opening/closing
X
To open: pull remote operating switch for
the
trunk lid/tailgate : until the trunk lid/
tailgate opens.
X To close (Sedan): press remote operating
switch for trunk lid : until the trunk lid is
closed.
X To close (Wagon): turn the SmartKey to
position 1 or 2 in the ignition lock.
X Press remote operating switch for
tailgate : until the tailgate is closed.
You can open and close the trunk lid/tailgate
from the driver's seat when the vehicle is
stationary and unlocked. Limiting the opening angle of the
tailgate (Wagon)
Important safety notes !
Make
sure there is sufficient clearance to
open the tailgate fully when setting the
opening angle. The tailgate could otherwise
be damaged. Ideally, set the opening angle
outside.
Arming You can limit the opening angle of the
tailgate. This is possible in the top half of its
opening range, up to approximately
8 in
(20 cm) before the stop. 90
Trunk/cargo compartment
Opening/closing
X
Take the mechanical key out of the
SmartKey (Y page 80).
X Insert the mechanical key into the trunk lid
lock as far as the stop. 1
Neutral position.
2 To unlock
X Turn the mechanical key counter-clockwise
from position 1 as far as it will go to
position 2.
The trunk is unlocked.
X Turn the mechanical key back to position
1 and remove it.
X Insert the mechanical key into the
SmartKey. Trunk emergency release (Sedan)
You can open the trunk lid from inside the
vehicle with the emergency release button. X
Press emergency release button : briefly.
The trunk lid unlocks and opens. The trunk lid can be unlocked and opened
with the trunk lid emergency release when
the vehicle is stationary or while driving.
The trunk lid emergency release does not
open the trunk lid if the battery is
disconnected or discharged.
Trunk lid emergency release light:
R
emergency release button : flashes for
30 minutes after the trunk lid is opened
R emergency release button : flashes for
60 minutes after the trunk lid is closed Tailgate emergency release (Wagon)
Important safety notes !
The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that
there is sufficient clearance above and
behind the tailgate.
i Opening dimensions of the trunk lid/
tailgate ( Y page 414).
If the tailgate can no longer be opened from
outside the vehicle, use the emergency
release on the inside of the tailgate.
On vehicles with a folding bench seat, you can
use the handle to open the tailgate from
inside the vehicle ( Y page 88).
Opening 92
Trunk/cargo compartment
Opening/closing