Page 131 of 498

130 Controls in detailSeatsSeat ventilation*
The switch is located on the center con-
sole. Seat ventilation can be activated
manually with the ignition on, or by the
summer opening feature (
page 217).
1Seat ventilation switchThe blue indicator lamps on the switch
show the ventilation level selected:
Switch on the ignition (
page 36).
Switching seat ventilation on
Press button1 repeatedly until the
desired ventilation level is set.Switching seat ventilation off
Press button1 repeatedly until all
indicator lamps go out.
Level3
Three indicator lamps on
(highest level)
2
Two indicator lamps on
1
One indicator lamp on (lowest
level)
off
No indicator lamp on
iThe seat ventilation is automatically set
to the highest level if activated via sum-
mer opening feature (
page 217).
iIf one or all of the lamps flash on the
seat ventilation switch, there is insuffi-
cient voltage due to too many electrical
consumers being switched on. The seat
ventilation switches off automatically.
The seat ventilation will switch back on
again automatically as soon as suffi-
cient voltage is available.
Page 133 of 498

132 Controls in detailMemory functionThe memory button and stored position
buttons are located on the door.
MMemory button
1, 2, 3Stored position button
Switch on the ignition (
page 36).
or
Open the respective door.
Storing positions into memory
Adjust the seats to the desired position
(page 40).
Adjust the steering wheel (
page 42)
and exterior rear view mirrors
(
page 44) on the driver’s side to the
desired position.
Press memory buttonM.
Release memory buttonM and press
position button1, 2 or 3 within
3 seconds.
All the settings are stored to the select-
ed position.
Recalling positions from memory
Press and hold memory position
button1, 2 or3 until the seat, steering
wheel and exterior rear view mirrors
have completely moved to the stored
positions.!Do not operate the power seats using
the memory button if the seat backrest
is in an excessively reclined position.
Doing so could cause damage to front
or rear seats.iReleasing the memory position button
stops movement to the stored posi-
tions immediately.
Page 171 of 498

170 Controls in detailControl system
Press buttonæ orç to switch
function
on or
off
.
Dynamic seat* submenu
Access the
Dynamic seat
submenu via the
Settings
menu. Use the
Dynamic seat
submenu to change the settings for the
dynamic seats. The following functions are
available:Adjusting the dynamic seat
The function dynamic seat adjustment lets
you determine the way the seat adjusts
while driving.
Move the selection marker with the
æ or çbutton to the Dynamic seat
submenu.
Press buttonj ork repeatedly
until you see
Dyn. multi-cont. seat,
driver
for the driver seat or
Dyn. multi-cont. seat, fr. pass.
for the passenger seat in the
multifunction display.
The selection marker is on the current
setting.
Press buttonæ orç to switch
function to
Weak
or
Powerful
.The following settings are available:
Function
Page
Adjust driver seat
170
Adjust passenger seat
170
Weak
(Comfort) Less lateral sup-
port and slow air pressure
build-up in the air cham-
bers of the backrest side
bolsters
Powerful
(Sporty) Strong lateral sup-
port and fast air pressure
build-up in the air cham-
bers of the backrest side
bolsters
Page 255 of 498

254 Controls in detailUseful featuresRuffled storage bags
Ruffled storage bags are located on the
back of the front seats.Parcel net in front passenger footwell
A small convenience parcel net is located
in the front passenger footwell. It is for
small and light items, such as road maps,
mail, etc.Warning!
G
The ruffled storage bag is intended for stor-
ing light-weight items only.
Heavy objects, objects with sharp edges or
fragile objects may not be transported in the
parcel net. In an accident, during hard brak-
ing, or sudden maneuvers, they could be
thrown around inside the vehicle and cause
injury to vehicle occupants.
The ruffled storage bag cannot protect
transported goods in the event of an acci-
dent.
Warning!
G
The parcel net is intended for storing
light-weight items only.
Heavy objects, objects with sharp edges or
fragile objects may not be transported in the
parcel net. In an accident, during hard brak-
ing, or sudden maneuvers, they could be
thrown around inside the vehicle and cause
injury to vehicle occupants.
The parcel net cannot protect transported
goods in the event of an accident.
Page 333 of 498

332 OperationTires and wheelsTire and loading terminology
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio, and heater, to the extent that
these items are available as
factory-installed equipment (whether
installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire.
Air pressure is expressed in pounds per
square inch (psi), or kilopascal (kPa) or
bars.
Aspect ratio
Dimensional relationship between tire
section height and section width
expressed in percentage.Bar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi)
to 1 bar; there are 100 kilopascals (kPa)
to 1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least 3 hours or driv-
en no more than 1 mile (1.6 km).
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so
equipped, air conditioning and additional
optional equipment, but without passen-
gers and cargo.DOT (D
epartment o
f T
ransportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross A
xle W
eight R
ating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
certification label located on the driver’s
door B-pillar.
GVW (G
ross V
ehicle W
eight)
The GVW comprises the weight of the
vehicle including fuel, tools, spare wheel,
installed accessories, passengers and
cargo and, if applicable, trailer tongue
load. The GWV must never exceed the
GWVR indicated on the certification label
located on the driver’s door B-pillar.
Page 408 of 498

407 Practical hints
Resetting activated head restraints
Resetting activated head restraints
If the active head restraint have been trig-
gered in an accident, the head restraints
must be reset. Otherwise, active head re-
straint cannot offer any additional protec-
tion in the event of another rear-end
collision.
Take the reset tool out of the
Mercedes-Benz vehicle literature
pouch.
Guide reset tool into center of head re-
straint between head restraint cushion
and rear head restraint cover.
Press reset tool forward in direction of
arrow.
Press reset tool downward until you
hear the head restraint release
mechanism audibly engage.
Pull out reset tool.
Firmly press head restraint cushion
backward towards rear head restraint
cover until it engages.
Repeat this procedure for second head
restraint.
For information on head restraint adjust-
ment, see “Seats” (
page 39).
iFor your convenience, we recommend
that you have this work carried out by
an authorized Mercedes-Benz Center.
You will find the reset tool for manually
operating the head restraints in the
Mercedes-Benz vehicle literature
pouch.
!Be careful not to damage upholstery.
Warning!
G
When pushing back the head restraint cush-
ion, take care that your fingers do not be-
come caught between the head restraint
cushion and the cover. Failing to do so may
lead to injury.
Page 472 of 498

471 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Accessory weight
(
page 332)
ADS
(Adaptive D
amping S
ystem)
Automatically adapts the optimum sus-
pension damping to prevailing driving
conditions.
Air pressure
(
page 332)Airmatic DC
(A
irmatic D
ual C
ontrol)
Automatically selects the optimum
suspension tuning and ride height for
your vehicle. Airmatic consists of two
components:
Adaptive Damping System
Vehicle level control
Alignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.
Aspect ratio
(
page 332)BabySmart
TM air bag deactivation
system
This system detects if a special system
compatible child restraint seat is in-
stalled on the front passenger seat. The
system will automatically deactivate
the passenger front air bag when such
a seat is properly installed (the
57indicator lamp in the
center console comes on and remains
illuminated).
BabySmartTM compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger front air bag if a BabySmart
TM
compatible child seat is installed. See
an authorized Mercedes-Benz Center
for availability.
Page 481 of 498

480 IndexAutomatic transmission 176
Accelerator position 180
Emergency operation
(Limp-Home Mode) 190
Gear ranges 181
Gear selector lever position 178
Gear shifting malfunctions 190
Kickdown 180
Kickdown, manual shift program
(CLS 55 AMG) 190
Manual shift program mode
(CLS 55 AMG) 188
Manual shifting 183
One-touch gearshifting 183
Program mode selector switch 182
Selector lever position 176
Starting the engine 49
Winter program mode 182B
BabySmart
TM
Airbag deactivation system 78
Compatible child seats 471
Self-test 79
BabySmart
TM air bag deactivation
system 471
Backrest
Seat, multicontour* 126
Seat, power 40
Backup lamps
Messages in display 387
Bar 332
BAS 86, 472
Batteries, SmartKey
Changing 408
Checking battery condition 102
Batteries, SmartKey with KEYLESS-GO*
Checking 109
Battery
Jump starting 435Battery, vehicle 431
Charging 433
Disconnecting 432
Messages in display 369, 373
Reconnecting 434
Removing 433
Bead 332
Bi-Xenon headlamps* 472
Block heater* (Canada only) 337
Brake assist system (BAS) 472
Brake fluid 291
Messages in display 377
Brake lamp
Messages in display 387
Brake pads
Message in display 374
Brakes
Warning lamp 354
Break-in period 278
Bulbs, replacing see Replacing bulbs