
70 Safety and SecurityOccupant safetySelf-test BabySmart
TM
 without special 
child seat installed
After turning the SmartKey in the starter 
switch to position1 or2 or pressing the 
KEYLESS-GO* (if so equipped) start/stop 
button once or twice, the 
“PASSENGER AIRBAG OFF” indicator 
lamp1 located in the center console lights 
up for approximately 6 seconds and then 
goes out.
If the indicator lamp should not come on or 
is continuously lit, the system is not func-
tioning. You must see an authorized 
Mercedes-Benz Center before seating any 
child on the passenger seat.
For more information see (page 294).
Warning!
G
The BabySmart
TM airbag deactivation sys-
tem will ONLY work with a special child seat 
designed to operate with it. It will not work 
with child seats which are not BabySmart
TM 
compatible.
Never place anything between seat cushion 
and child seat (e.g. pillow), since it reduces 
the effectiveness of the deactivation sys-
tem. The bottom of the child seat must 
make full contact with the passenger seat 
cushion. An incorrectly mounted child seat 
could cause injuries to the child in case of an 
accident, instead of protecting the child.
Follow the manufacturer’s instructions for 
installation of special child seats.
Warning!
G
When using a BabySmart
TM compatible 
child seat on the front passenger seat, the 
passenger front airbag will not deploy only if 
the PASSENGER AIRBAG OFF indicator lamp 
remains illuminated. 
Please be sure to check the indicator every 
time you use the special system child seat. 
Should the light go out while the restraint is 
installed, please check installation. If the 
light remains out, do not use the 
BabySmart
TM restraint to transport children 
on the front passenger seat until the system 
has been repaired.
Do not place powered-on laptops, cell 
phones and like electronic devices on the 
front passenger seat. Signals from such de-
vices may interfere with the BabySmart
TM 
system. Such signal interference may cause 
the PASSENGER AIRBAG OFF indicator lamp 
not to come on during self-test or be contin-
uously lit, indicating that the system is not 
functioning. 

71 Safety and Security
Occupant safety
Installation of infant and child restraint 
systems
This vehicle is equipped with tether an-
chorages for a top tether strap at each of 
the rear seating positions.
1Cover of top anchorage ring
Remove cover1 from anchorage ring.
Store cover1 in a convenient place 
(e.g. glove box).
Guide tether strap between head re-
straint and top of seat back.Head restraints must be positioned such 
that the top tether strap can pass freely 
between the head restraint and top of seat 
back.
Make sure that the tether strap is not 
twisted.
2Hook
3Anchorage ring
Securely fasten hook2, which is part of 
the tether strap, to anchorage ring3.
Reinstall cover after removing the 
tether strap.iFor safety reasons, please make sure 
that the hook has attached to the ring 
beyond the safety catch, as illustrated.Warning!
G
Vehicles with adjustable rear seats/bench*: 
Never adjust the rear seat position after in-
stalling the child restraint. Adjusting the rear 
seat position after installing the child re-
straint could damage the child restraint 
and/or introduce undesirable slack into the 
webbing and loosen or misposition the child 
restraint, lessening the effectiveness of the 
child restraint and thus increasing the 
chance or severity of injury in an accident. 

72 Safety and SecurityOccupant safetyChild seat anchors – “LATCH” type
This vehicle is equipped with two “LATCH” 
(Lower A
nchors and T
ethers for CH
ildren) 
type anchors (at each of the outer rear 
seats) for the installation of a “LATCH” 
child seat with the matching anchor fit-
tings. 
If you have not installed a child seat, the 
“LATCH” anchor fittings are covered with 
an upholstery blend.
1Indicates the position of the anchors
2Anchors
3Upholstery blend
4Installation device
Move rear power seats*/bench* to the 
rearmost position  (
page 113). 
Fold upholstery blend3 upward.
Turn installation device4 to a vertical 
position so that upholstery blend3 
does not fold down.
Install child seat according to the man-
ufacturer’s instructions.
A solid connection is established be-
tween the child seat and the body of 
the vehicle.
Do not adjust rear power seat*/bench* 
position after installing child restraint. 

73 Safety and Security
Occupant safety
Warning!
G
Vehicles with adjustable rear seats/bench*: 
Never adjust the rear seat position after in-
stalling the child restraint. Adjusting the rear 
seat position after installing the child re-
straint could damage the child restraint 
and/or introduce undesirable slack into the 
webbing and loosen or misposition the child 
restraint, lessening the effectiveness of the 
child restraint and thus increasing the 
chance or severity of injury in an accident.
iThe child seat must be firmly attached 
in the right and left side anchor fittings.
Make sure that the seat belt for the 
center seat can operate freely with a 
child seat installed.
Non-“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 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. un-
til they reach a height where a lap/shoulder 
belt fits properly without a booster.
Install child seat according to manufactur-
er’s instructions.
The child seat must be firmly attached in 
right and left side anchor fittings2.
An incorrectly mounted child seat may come 
loose during an accident which could result 
in serious injury or death to your child.
Damaged or impact damaged child seats or 
child seat mounting fittings must be re-
placed.
Do not leave children unattended in the ve-
hicle, even if the children are secured in a 
child restraint system. 

74 Safety and SecurityOccupant safetyOverride switch for rear passenger compartment
You can disable select functions in the rear 
passenger compartment for added safety 
(for instance when you have children riding 
in the rear passenger compartment).
You can disable the following functions in 
the rear passenger compartment:
rear door window operation 
(page 188)
adjustment of front passenger seat 
from the rear* (
page 115)
cigarette lighter in rear (
page 234)
The switch is located on the driver’s door.1Override switch
Activating override switch
Slide override switch 1 to the right.
The functions in the rear are disabled.
Deactivating override switch
Slide override switch 1 to the left.
The functions in the rear are enabled 
again.
!The rear door windows can still be op-
erated with the switches located in the 
driver’s door.Warning!
G
Activate the override switch when children 
are riding in the back seats of the vehicle. 
The children may otherwise injure them-
selves, e.g. by becoming trapped in the win-
dow opening.
When leaving the vehicle, always remove the 
SmartKey from the starter switch, take the 
KEYLESS-GO* card (if so equipped) with 
you, and lock your vehicle. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Unsupervised 
use of vehicle equipment may cause an ac-
cident and/or serious personal injury. 

115 Controls in detailSeats
Power seat, setting passenger seat po-
sition from rear*
This function lets you adjust the position of 
the passenger seat from the rear.The switch is located on the right rear pas-
senger door.
1Front passenger seat adjustment
2Rear seat adjustment
3Seat height
4Head restraint height
5Backrest tilt
6Seat fore and aft adjustment
Make sure the ignition is switched on.
or
Open the right rear passenger door.
Press button1 to adjust the front 
passenger seat.
Warning!
G
When adjusting the passenger seat, make 
sure that the seat, if occupied, is as far from 
the front passenger airbag as possible.
Otherwise, the passenger could be seriously 
or even fatally injured in the event of an ac-
cident or braking maneuver.
Make sure that no one is caught or injured 
while the seat is being adjusted.
The power seats can also be operated with 
the driver's or passenger door open. Do not 
leave children unattended in the vehicle, or 
with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment may 
cause an accident and/or serious personal 
injury
iAdjusting the passenger seat position 
from the rear is not possible if you de-
activate the operation of the rear door 
windows (
page 74).
!Do not move the front passenger seat 
completely forward if objects are 
stored in the parcel net in the front pas-
senger-side footwell. Items in the net 
may be damaged 

117 Controls in detail
Memory function
Memory function
The memory button and stored position 
switch are located on the door.
You can store up to three different settings 
per SmartKey or KEYLESS-GO* card.
The following settings are saved for each 
stored position:
Seat and backrest position
Settings for the multi-contour seat*
Steering wheel position
Inside rear view mirror position
Exterior rear view mirror position
Automatic climate control
These key dependent memory settings can 
be deactivated if desired (
page 156).
1 Stored position buttons
2Memory button
Make sure that the ignition is switched 
on or the relevant door is open and the 
SmartKey is inserted in the starter 
switch.
!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. Also see 
“Airbags” (
page 57) section for prop-
er seat positioning.
In addition, adjust the steering wheel to 
ensure adequate control, reach, opera-
tion and comfort. Both the inside and 
outside 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. 

156 Controls in detailControl systemSetting key dependency
Use this function to set whether the mem-
ory settings for the seats, the steering 
wheel, the mirrors, and the automatic cli-
mate control should be stored separately 
for each SmartKey (
page 117).
Move the selection marker with 
the
æ
 or
ç
 button to 
the
CONVENIENCE
 submenu.
Press button
j
 or
k
 repeatedly 
until you see this message in the dis-
play: 
SETTINGS KEY-DEPENDENT
.
The selection marker is on the current 
setting.
Press
æ
 or
ç
 to set key depen-
dency to 
ON or 
OFF
. Activating easy-entry/exit feature
Use this function to activate and deacti-
vate the easy-entry/exit feature. When the 
feature is activated, the steering wheel and 
driver’s seat will move back to facilitate ex-
iting when you:
remove the SmartKey from the starter 
switch
open the driver’s door
However, the engine must be turned off.
Warning!
G
You must make sure that no one can be-
come trapped or injured by the moving 
steering wheel and the driver’s seat when 
the easy-entry/exit feature is in operation 
and the driver’s door is being opened or the 
SmartKey is removed from the starter 
switch.
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle. 
Unsupervised use of vehicle equipment may 
cause an accident and/or serious personal 
injury.
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle. 
Children could open the driver’s door and 
unintentionally activate the easy-entry/exit 
feature, which could result in an accident 
and/or serious personal injury.