If the child weighs more than 22 kg, only use
ISOFIX child restraint systems or i-Size child
restraint systems with which the child is also
secured with the vehicle seat belt. Also secure the child restraint system with the Top Tether
belt, if available.
When fitting a child restraint system, be sure to
observe the manufacturer's installation and
operating instructions and the instructions for
correct use of the child restraint system
(Y page 61).
Before every trip, make sure that the ISOFIX
child restraint system or the i-Size child restraint system is engaged correctly in both ISOFIX or i-
Size securing rings. This symbol indicates an ISOFIX position that is
suitable for attaching an ISOFIX child restraint
system. A similar symbol can be found on the
ISOFIX child restraint system. This symbol indicates an i
‑Size position that is
suitable for attaching an i-Size child restraint
system. A similar symbol can be found on the i- Size child restraint system.
! When fitting the child restraint system,
make sure that the seat belt for the centre seat does not get trapped. Otherwise, the
seat belt could be damaged. :
ISOFIX securing rings ;
i-Size securing rings
X Install the ISOFIX child restraint system on
both ISOFIX securing rings :or i-Size secur-
ing rings ;.
or
X Install the i-Size child restraint system on both
i-Size securing rings ;.
ISOFIX and i-Size are standardised securing sys-
tems for special child restraint systems. ISOFIX child restraint systems are approved in accord-
ance with ECE R-44. i-Size child restraint sys-
tems are approved in accordance with ECE
R-129.
Only child restraint systems that have been
approved in accordance with ECE R-44 may be
attached to ISOFIX securing rings. ISOFIX child
restraint systems in accordance with ECE R-44
and i‑ Size child restraint systems that have been
approved in accordance with ECE R-129 may be attached to i-Size securing rings. ISOFIX secur-
ing ring :or i-Size securing ring ;are instal-
led on the left and right sides of the rear seats. 58
Children in the vehicleSafety
Top Tether
Introduction Top Tether provides an additional connection
between the child restraint system secured with
ISOFIX or i-Size and the vehicle. It helps reduce
the risk of injury even further. If the child
restraint system is fitted with a Top Tether belt,
this should always be used.
Important safety notes G
WARNING
If the rear seat backrests are not locked, they
could fold forwards in the event of an acci-
dent, heavy braking or sudden changes of
direction. As a result, child restraint systems
cannot perform their intended protective
function. Rear seat backrests that are not
locked can also cause additional injuries, e.g. in the event of an accident. This poses an
increased risk of injury or even fatal injury.
Always lock rear seat backrests after fitting a Top Tether belt. Observe the lock verificationindicator. Adjust the rear seat backrests so
that they are in an upright position.
If the rear seat backrest is not engaged and
locked, the red lock verification indicator will be
visible (Y page 292).
Top Tether anchorages The Top Tether anchorage points are located on
the rear side of the backrests on both outer rear seats.
Vehicles with adjustable head restraints:
X Move head restraint :upwards.
X Route Top Tether belt ?under head
restraint :between the two head restraint
bars.
Vehicles without adjustable head restraints:
X Top Tether belt with one belt strap: route
Top Tether belt ?centrally over head
restraint :.
or X Top Tether belt with two belt straps: route
one Top Tether belt ?to the left and one to
the right past the side of head restraint :.
All vehicles:
X Fit the ISOFIX or i-size child restraint system
with Top Tether. Always comply with the child
restraint system manufacturer's installation
instructions when doing so.
X Hook Top Tether hook =of Top Tether
belt ?into Top Tether anchorage ;.
Ensure that:
R Top Tether hook =is hooked into Top
Tether anchorage ;as shown
R Top Tether belt ?is not twisted
R Top Tether belt ?is routed between the
rear seat backrest and the luggage com-
partment cover if the luggage compart-
ment cover is fitted
X Tension Top Tether belt ?. Always comply
with the child restraint system manufactur-
er's installation instructions when doing so.
Vehicles with adjustable head restraints:
X If necessary, move the head restraint :back
down again slightly (Y page 109). Make sure Children in the vehicle
59Safety Z
that you do not interfere with the correct rout-
ing of Top Tether belt ?.Child restraint system on the front-
passenger seat
General notes Accident statistics show that children secured
on the rear seats are safer than children secured on the front-passenger seat. For this reason,
Mercedes-Benz strongly advises that you install
a child restraint system on a rear seat.
Vehicles with the automatic front-
passenger front airbag deactivation system:
if it is absolutely necessary to fit a child restraint
system to the front-passenger seat, always
observe the information on the "Automatic
front-passenger front airbag deactivation sys-
tem" (Y page 49).
You can thus avoid the risks that could arise as a result of:
R a child restraint system that is not detected
by the automatic front-passenger front airbag
deactivation system
R unintentional disabling of the front-passenger
front airbag
R unsuitable positioning of the child restraint
system, e.g. too close to the dashboard Please observe the warning notice on the
front-passenger sun visor; see illustration. G
WARNING
If you secure a child in a rearward-facing child
restraint system on the front-passenger seat
and the PASSENGER AIR BAG OFF indicator
lamp is off, the front-passenger front airbag
can deploy in the event of an accident. The child could be struck by the airbag. This poses
an increased risk of injury or even fatal injury.
Make sure that the front-passenger front air-
bag has been disabled. The PASSENGER AIR
BAG OFF indicator lamp must be lit.
NEVER use a rearward-facing child restraint
on a seat protected by an ACTIVE AIRBAG in
front of it; DEATH or SERIOUS INJURY to the
child can occur.
If the PASSENGER AIR BAG OFF indicator lamp
goes out, the front-passenger front airbag is
enabled (Y page 42).
Vehicles without the automatic front-
passenger front airbag deactivation
system If the front-passenger seat of your vehicle is not
equipped with the automatic front-passenger
front airbag deactivation system, this is indica-
ted by a special sticker. The sticker is affixed to
the side of the dashboard on the front-
passenger side. The sticker is visible when you
open the front-passenger door.
If you turn the key to position 2in the ignition
lock, the PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps light
up briefly. However, they have no function and
do not indicate that there is an automatic front- passenger front airbag deactivation system.
In this case, never fit a rearward-facing child
restraint system on the front passenger seat
(Y page 61).
Observe the following information under "Rear-
ward-facing child restraint system"
(Y page 61) and "Forward-facing child
restraint system" (Y page 61) as well as infor-
mation on the suitable positioning of the child
restraint system (Y page 61).60
Children in the vehicleSafety
Rearward-facing child restraint system
If it is absolutely necessary to fit a rearward-
facing child restraint system on the front-
passenger seat, always make sure that the
front-passenger front airbag is disabled. Only if
the PASSENGER AIR BAG OFF indicator lamp is
lit continuously (Y page 42) is the front-
passenger front airbag disabled.
Always observe the information on suitable
positioning of the child restraint system
(Y page 61) in addition to the child restraint
system manufacturer's installation and operat-
ing instructions.
Forward-facing child restraint system If it is absolutely necessary to fit a forward-
facing child restraint system on the front-
passenger seat, always move the front-
passenger seat as far back as possible. Fully
retract the seat cushion length. The entire base
of the child restraint system must always rest on the seat cushion of the front-passenger seat.
The backrest of the child restraint system must,
as far as possible, lie flat against the backrest of the front-passenger seat. The child restraint sys-tem must not touch the roof or be put under
strain by the head restraint. Adjust the angle of
the seat backrest and the head restraint posi-
tion accordingly. Always make sure that the
shoulder belt strap is correctly routed from the
vehicle belt outlet to the shoulder belt guide on
the child restraint system. The shoulder belt
strap must be routed forwards and downwards
from the vehicle belt outlet. If necessary, adjust
the vehicle belt outlet and the front-passenger
seat accordingly.
Always observe the information on suitable
positioning of the child restraint system
(Y page 61) in addition to the child restraint
system manufacturer's installation and operat-
ing instructions. Suitable positioning of the child
restraint system
Introduction Only child restraint systems approved in accord-
ance with ECE standards ECE R44 or ECE R129 (i-Size child restraint systems) are permitted for use in the vehicle. For certain child restraint systems in weight cat-
egories II or III, this can mean that the area of
use is restricted. The maximum size setting of
the child restraint system may not be possible
due to possible contact with the roof.
"Universal" category child restraint systems can
be recognised by their orange approval label and
the text "Universal" or an "i-Size" label. Example: approval label on the child restraint
system
ISOFIX or i-Size child restraint systems of the
“Universal“ category can be used on seats label- led U, UF, IUF or i-U in accordance with the fol-
lowing tables:
R suitability of the seats for attaching belt-
secured child restraint systems
R Suitability of the seats for attaching ISOFIX
child restraint systems
R Suitability of the seats for attaching an i-Size
child restraint system
Semi-universal child restraint systems are indi-
cated by the text "semi-universal" on the
approval label. These can be used if the vehicle and the seat are listed in the child restraint sys-
tem manufacturer's vehicle model list. For more
information, contact the child restraint system
manufacturer or visit their website. Children in the vehicle
61Safety Z
Child restraint system on the front-
passenger seat –
if it is absolutely necessary to
secure a child in a child restraint system on the front-passenger seat:
X Always pay attention to the instructions under
"Child restraint system on the front-
passenger seat" (Y page 60).
There you will find instructions on how to cor- rectly route the shoulder belt strap from the
vehicle belt outlet to the shoulder belt guide
on the child restraint system (Y page 61).
X Move the front-passenger seat as far back as
possible and fully retract the seat cushion
length.
If you secure a child in a forward-facing child
restraint system on the front-passenger seat,
you must also move the front-passenger seat to the highest position.
X Move the backrest to an almost vertical posi-
tion. The entire base of the child restraint system
must always rest on the seat cushion of the
front-passenger seat. The backrest of a
forward-facing child restraint system must, as
far as possible, rest flat against the backrest
of the front-passenger seat. The child
restraint system must not touch the roof or be
put under strain by the head restraint. Adjust the angle of the seat backrest and the head
restraint position accordingly. Also observe
the child restraint system manufacturer's
installation instructions.
X If possible, move the seat cushion angle to the
highest, most vertical position (Y page 107).
Installing a child restraint system on a rear seat
X Move the backrest of the rear seat to an
almost vertical position (Y page 292).
Suitability of the seats for attaching a belt-secured child restraint system If you use a baby car seat of category 0 or 0+ or a rearward-facing child restraint system of category
I on a rear seat, you must adjust the driver's or front-passenger seat so that the seat does not touch the child restraint system.
If you use a category I, forward-facing child restraint system, you should remove the head restraintfrom the respective seat, if possible (Y page 109). The backrest of the child restraint system must,
as far as possible, lie flat against the backrest of the seat.
Make sure that the child's feet do not touch the front seat. If necessary, move the front seat forward
slightly.
For certain child restraint systems in weight categories II or III, this can mean that the area of use is restricted. The maximum size setting of the child restraint system may not be possible due to
possible contact with the roof.
Always observe the notes in the "Child restraint system" section (Y page 57)and the child restraint
system manufacturer's installation instructions.
When you remove the child restraint system, you must replace the head restraints again immedi-
ately (Y page 108). All vehicle occupants must adjust their head restraints correctly before begin-
ning the journey.
Legend for the table:
XS eat that is unsuitable for children in this weight category.
US uitable for child restraint systems in the "Universal" category that are approved for use in this
weight category.
UF Suitable for forward-facing child restraint systems that belong to the "Universal" category and are approved for use in this weight category.
LS uitable for child restraint systems as recommended; see the "Recommended child restraint
systems" table (Y page 65). Suitable for semi-universal child restraint systems if the vehicle
and the seat are listed in the child restraint system manufacturer's vehicle model list. 62
Children in the vehicleSafety
Front-passenger seat
Weight category Front-passenger
front airbag enabled Front-passenger
front airbag disabled
0
up to 10 kg X
U
1
, L 1 0+
up to 13 kg X
U
1
, L 1 I
9 kg to 18 kg UF, L
U
1
, L 1
UF, L II
15 kg to 25 kg UF, L
U
1
, L 1
UF, L III
22 kg to 36 kg UF, L UF, L
Rear seats
Weight category Left, right Centre
0
up to 10 kg U, L
U
2
, L 2 0+
up to 13 kg U, L
U
2
, L 2 I
9 kg to 18 kg U, L
U
2
, L 2 II
15 kg to 25 kg U, L X
III
22 kg to 36 kg U, L X
Suitability of the seats for attaching ISOFIX child restraint systems
If you use a baby car seat of category 0 or 0+ or a rearward-facing child restraint system of category
I on a rear seat, you must adjust the driver's or front-passenger seat so that the seat does not touch the child restraint system.
If you use a category I, forward-facing child restraint system, you should remove the head restraintfrom the respective seat, if possible (Y page 109). The backrest of the child restraint system must,
as far as possible, lie flat against the backrest of the seat.
Make sure that the child's feet do not touch the front seat. If necessary, move the front seat forward
slightly.
For certain child restraint systems in weight categories II or III, this can mean that the area of use is restricted. The maximum size setting of the child restraint system may not be possible due to
possible contact with the roof.
Always observe the notes in the "Child restraint system" section (Y page 57)and the child restraint
system manufacturer's installation instructions.
When you remove the child restraint system, you must replace the head restraints again immedi-
ately (Y page 108). All vehicle occupants must adjust their head restraints correctly before begin-
ning the journey.
1 The vehicle is equipped with an automatic front-passenger front airbag deactivation system. The PASSENGER
AIR BAG OFF indicator lamp must be lit.
2 Child restraint systems with a supporting bracket are not suitable for this seat. Children in the vehicle
63Safety Z
Legend for the table:
XI
SOFIX position that is not suitable for ISOFIX child restraint systems in this weight category
and/or size category.
IUF Suitable for forward-facing ISOFIX child restraint systems that belong to the "Universal" cat- egory and are approved for use in this weight category.
IL Suitable for ISOFIX child restraint systems as recommended; see the "Recommended child restraint systems" table (Y page 65).
The manufacturer will also recommend a suitable ISOFIX child restraint system. For this, your
vehicle and the seat must be listed in the child restraint system manufacturer's model list. For more information, contact the child restraint system manufacturer or visit their website. Weight category Size category Equipment Rear seat left,
right Carry cot
F ISO/L1 X
G ISO/L2 X
0
up to 10 kg
up to approximately 6 months E ISO/R1 IL
0+
up to 13 kg
up to approximately 15 months E ISO/R1 IL
D ISO/R2 IL
C ISO/R3
IL
3 I
9 kg to 18 kg
between approximately 9 months
and 4 years D ISO/R2 IL
C ISO/R3
IL
3 B ISO/F2 IUF
B1 ISO/F2X IUF
A ISO/F3 IUF
The child restraint system must not touch the roof or be put under strain by the head restraints.
Adjust the head restraint position accordingly. Also observe the child restraint system manufac-
turer's installation instructions.
Vehicles with the Style or Urban package or 4-way or 6-way front seats: set the front seat to the
highest position.
Vehicles with 2-way front seats: set the front seat to the foremost position.
Suitability of the seats for attaching an i-Size child restraint system If you use a baby car seat of category 0 or 0+ or a rearward-facing child restraint system of category
I on a rear seat, you must adjust the driver's or front-passenger seat so that the seat does not touch
the child restraint system.
If you use a category I, forward-facing child restraint system, you should remove the head restraint from the respective seat, if possible (Y page 109). The backrest of the child restraint system must,
as far as possible, lie flat against the backrest of the seat.
Make sure that the child's feet do not touch the front seat. If necessary, move the front seat forward
slightly.
3 If you are using a child restraint system of size category C (ISO/R3), make sure that the front seat backrest
does not rest against the child restraint system. 64
Children in the vehicleSafety
Always observe the notes in the "Child restraint system" section (Y
page 57) and the child restraint
system manufacturer's installation instructions.
When you remove the child restraint system, you must replace the head restraints again immedi-
ately (Y page 108). All vehicle occupants must adjust their head restraints correctly before begin-
ning the journey.
Legend for the table:
XS eat that is unsuitable for i-Size child restraint systems in the "Universal" category.
i‑US uitable for a forward or rearward-facing i-Size child restraint system in the "Universal" cate-
gory. Seat
Front-
passenger seat Rear seat
Left Centre Right
i‑Size child restraint sys-
tems X i
‑U X i
‑U Recommended child restraint systems
General notes Always observe the information in "Child restraint systems on the front-passenger seat" (Y
page 60)
and in "Suitable positioning of the child restraint system" (Y page 61).
You can obtain further information about the correct child restraint system from any Mercedes-Benz
Service Centre.
Recommended child restraint systems for attaching with the vehicle seat belt Weight categories Manufac-
turer Type Approval number
(E1 ...) Order number
(A 000 ...) 4 Category 0:
up to 10 kg
up to approximately
6 months
Britax Römer BABY SAFE
plus II 04 301146 970 36 00
970 57 00
Category 0+:
up to 13 kg
up to approximately
15 months
Britax Römer BABY SAFE
plus II 04 301146 970 36 00
970 57 00
Category I:
9 kg to 18 kg
between approx-
imately 9 month
sand
4 years Britax Römer DUO plus 04 301133 970 37 00
970 58 00
4
Colour code 9H95. Children in the vehicle
65Safety Z