38 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Seats, front
Caution!
Do not remove head restraints except when mounting
seat covers. For removal see page 45. Whenever head
restraints have been removed be sure to reinstall them
before driving.
Wa r n i n g !
Do not adjust the driver’s seat while driving.
Adjusting the seat while driving could cause the
driver to lose control of the vehicle.Never ride in a moving vehicle with the backrest
reclined. Sitting in an excessively reclined position
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 abdomen or neck. That
could cause serious or even fatal injuries. The
backrest and seat belt provide the best restraint
when the wearer is in an upright position and the
belt is properly positioned on the body.Never place hands under seat or near any moving
parts while a seat is being adjusted.
Wa r n i n g !
When leaving the vehicle always remove the key
from the steering lock, and lock your vehicle.Do not leave children unattended in the vehicle or
with access to an unlocked vehicle. Unsupervised
use of vehicle equipment may cause serious
personal injury.
42 Seats
Te ch n i c a l
data Instruments
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Only minor personal adjustments, as described below,
should then be required.
For exterior rear view mirrors, see page 77;
inside rear view mirror, see page 75;
steering wheel adjustment, see page 74.
Note:
See page 43 for instructions on storing and recalling the
seat position.Head restraint
Raising:
Pull up on head restraint.
Lowering:
Push button (1) and push down on head restraint, see
also page 45.
Adjust head restraint to support the back of the head
approximately at ear level. The head restraint angle can
also be adjusted manually.
See page 45 for removing head restraints.
Wa r n i n g !
When leaving the vehicle always remove the key
from the steering lock, and lock your vehicle.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. Unsupervised use of vehicle
equipment may cause serious personal injury.
55 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index BabySmart
TM airbag deactivation system
Special BabySmart
TM compatible child seats, designed
for use with the Mercedes-Benz system and available at
any authorized Mercedes-Benz Center are required for
use with the BabySmart
TM airbag deactivation system.
With the special child seat properly installed, the
passenger front airbag will not deploy. The 7
indicator lamp located in the instrument cluster will be
illuminated, except with key removed or in steering lock
position 0. The system does not deactivate the door
mounted side impact airbag.
Self-test BabySmart
TM
withoutspecialchildseatinstalled
After turning key in steering lock to position 1 or 2, the
7 indicator lamp located in the instrument cluster
comes on for approximately 6 seconds, extinguishes,
then blinks once.
If the indicator lamp should not come on or is
continuously lit, the system is not functioning. You must
see an authorized Mercedes-Benz Center before seating
any child on the front passenger seat.
BabySmart
TM is a trademark of Siemens Automotive Corp.
Wa r n i n g !
The BabySmart
TM Airbag Deactivation System 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 system. 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.The passenger front airbag will not deploy only if
the 7 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.
57 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Emergency tensioning retractor (ETR)
The seat belts for the outboard passenger seats (except
in the optional 3rd row seats) are equipped with
emergency tensioning retractors. These tensioning
retractors are located in each belt’s inertia reel and
become operationally ready with the key in steering
lock position 1 or 2.
The emergency tensioning retractors are designed to
activate only when the seat belts are fastened during
frontal impacts exceeding the first threshold of the SRS
and in rear impacts exceeding a preset severity level.
They remove slack from the belts in such a way that the
seat belts fit more snugly against the body restricting its
forward movement as much as possible.In cases of other frontal impacts, angled impacts, roll-
overs, certain side impacts, or other accidents without
sufficient frontal or rear impact forces, the emergency
tensioning retractors will not be activated. The driver
and passengers will then be protected by the fastened
seat belts and inertia reel in the usual manner.
For seat belt and emergency tensioning retractor see
page 66.
Note:
The front passenger ETR activates only if the front
passenger seat is occupied.
Heavy objects on the front passenger seat can appear to
the “SRS” to indicate the presence of an occupant in
that seat which causes the passenger front airbag to
deploy and the ETR to activate in a crash exceeding the
appropriate threshold.
69 Restraint systems
Te ch n i c a l
data Instruments
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cluster displayPractical hints Car care Index
Wa r n i n 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 vehicle to deactivate the passenger
front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates 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 seating positions.
Infants and small children must ride in back seats
and be seated in an infant or child restraint system,
which is properly secured with the vehicle’s seat
belt, fully in accordance with the child seat
manufacturer’s instructions.
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.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. to
the point where a lap / shoulder belt fits properly
without one.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
serious personal injury.
139 Interior equipment
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Split rear seat bench
The rear seat bench can be moved fore / aft, folded and
lowered to increase the cargo area. The left, right or
both seat back sections may folded down according to
need.To slide rear seat bench fore / aft:
1. Pull lever (1) in direction of arrow, and slide seat
bench section to desired position until it locks in
place.
To enlarge cargo area:
1. Close cup holder in rear center console.
2. Move front seats forward, see page 40 for manual
seats and page 41 for power seats.
3. Pull lever (1) in direction of arrow, and slide seat
bench section forward.
4. Remove head restraint(s). The head restraint(s)
should be stored beneath the cargo floor plates.
142 Interior equipment
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Easy entry/exit feature
(only in vehicles with third row seats)
Folding right seat bench section for access to rear
compartment area:
1. Move right front seat forward.
2. Slide seat bench section forward.
3. Push head restraint fully down and tilt it forward,
see page 45.4. Pull lock button (2) of seat back up, and fold seat
back forward.
5. Remove respective cargo floor plate, see page 147.
6. Pull lever (6) up, and fold seat bench section
forward.
Resetting seat bench:
1. Pull down on seat bench section until it locks into
place.
2. Pull lock button (2) up, and unfold seat back to
upright position. Check for secure locking by
pushing and pulling on the backrest. The backrest
lock indicators at the lock buttons (2) are not visible
in locked position.
3. Pull up and adjust head restraint.
Caution!
Never drive with the second row right seat folded
forward (easy entry/exit feature). It could open and fold
back unintentionally.
When unfolding the seat, be sure that there is no danger
of anyone being harmed by the procedure.
144 Interior equipment
Te ch n i c a l
data Instruments
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cluster displayPractical hints Car care Index
Third row seats (optional on ML 320 and ML 500)
Two single seats can be unfolded to enlarge the seating
area.
To fol d s ea t d own:
1. Remove head restraint from seat cushion.
2. Remove cargo floor plate, see page 147.
3. Lift tensioner (1) upward to a horizontal position to
release tension of the strap.4. Disengage hook (2) and attach belt at hook and loop
strip on underside of seat.
5. Fold seat down until it locks securely in place.
Important!
When seat is correctly unfolded, the red marking on
the seat release (4) should not be visible.
6. Store cargo floor plates inside the backrest, see
page 148.
4