Page 96 of 394
96 Controls in detailLocking and unlockingThe switch is located in the center console.Central locking switch1Locking
2UnlockingLocking
Press upper half1 of the central lock-
ing switch.
If both doors are closed, the vehicle
locks.
Unlocking
Press lower half2 of the central lock-
ing switch.
The vehicle unlocks.
iYou can open a locked door from the
inside. Open door only when conditions
are safe to do so.
If the vehicle was previously centrally
locked with the SmartKey or the
SmartKey with KEYLESS-GO*
(if so equipped), it will not unlock using
the central locking switch.
If the vehicle was previously locked
with the central locking switch
while in the global remote control
mode, the complete vehicle is un-
locked when a door is opened from
the inside.
while in the selective remote con-
trol mode, only the door opened
from inside is unlocked.
Page 101 of 394

101 Controls in detailSeats
Heated seats*
The switch is located in the center console.
1Normal heating
2Rapid heating
Make sure that the ignition is switched
on.
All the lamps in the instrument cluster
light up.Switching on seat heating
Press upper switch position1.
A red indicator lamp on the switch
lights up.
Switching on rapid seat heating
Press lower switch position2.
Both red indicator lamps on the switch
light up.Switching off seat heating
If one indicator lamp is on, press upper
switch position1.
If both indicator lamps are on, press
lower switch position2.
!If one or both of the lamps on the seat
heater switch are blinking, there is in-
sufficient voltage available since too
many electrical consumers are turned
on. The seat heater switches off auto-
matically.
The seat heater will switch back on
again automatically as soon as suffi-
cient voltage is available.
iThe system switches over to normal
heating mode after approximately ten
minutes. Only one indicator lamp re-
mains lit. iThe seat heater will be automatically
switched off after approximately
20 minutes.
Page 153 of 394

153 Controls in detail
Good visibility
Rear window sunshade*
The switch is located in the center console.
Turn the key to starter switch position
1 or 2. Vehicles with KEYLESS-GO*:
press the start/stop button once or
twice.
Press the switch briefly at 1 to raise the
sunshade.
Press the switch briefly at 2 to lower
the sunshade.
Always raise the sunshade fully for its sup-
port against the window frame.
Warning!
G
When operating the rear window sunshade,
ma ke s ur e th a t th er e is no da nge r o f an y o ne
being harmed by the raising or lowering pro-
cedure.
The raising or lowering procedure can be im-
mediately halted by briefly pressing the up-
per or lower half of the switch.
Briefly press upper or lower half of the
switch again to raise or lower the rear win-
dow sunshade completely.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from starter switch, and lock your
vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and⁄or serious
personal injury.
Page 203 of 394

203 Controls in detail
Driving systems
Deactivating Distronic
There are several ways to deactivate the
Distronic system:
Briefly tip the cruise control lever in the
direction of arrow3 (
page 200).
or
Step on the brake pedal.
Distronic will be deactivated. The last
speed set will be stored into memory.Distronic deactivates automatically when
you set the parking brake
you drive slower than 25 mph
(Canada: 40 km/h)
the ESP is active (
page 76) or you de-
activate the ESP
you move the transmission selector le-
ver into positionN.
A signal will sound. The
Distronic off
message appears in the multifunction
display for approximately five seconds.Setting the following distance in
Distronic
You can set the specified following dis-
tance for Distronic by varying the time set-
ting between 1.0 and 2.0 seconds. Using
this time setting and the current speed of
your vehicle, Distronic calculates and sets
the required following distance to the vehi-
cle ahead. The set distance will be shown
in the multifunction display field.
The thumbwheel for making the time set-
ting is located on the lower section of the
center console.
iThe following message will appear in
the multifunction display for approxi-
mately five seconds:
Distronic off
.
The last stored speed is deleted when
you turn off the engine.
Warning!
G
Distronic switches off and releases the
brakes when the vehicle decelerates below
the minimum speed of approx. 25 mph
( 40 km / h) by operation of the system. At
that time the driver must apply the brakes in
order to reduce vehicle speed further or
bring it to a stop.
Warning!
G
It is up to th e dr iv er t o e xer ci s e di sc r et io n t o
select the appropriate setting given road
conditions, traffic, driver’s preferred driving
style and applicable laws and driving recom-
mendations for safe following distance.
Page 211 of 394
211 Controls in detail
Driving systems
Switching the Parktronic system
on/off
You can switch off the Parktronic system
manually.
The Parktronic switch is located in the low-
er section of the center console.
1Parktronic off
2Indicator lamp
3Parktronic onSwitching off the Parktronic system
Press upper half 1 of the switch.
Indicator lamp 2 comes on.
Switching on the Parktronic system
Press lower half 3 of the switch.
Indicator lamp 2 goes out.
Page 223 of 394
223 Controls in detail
Useful features
Ashtrays
Center console ashtray
Opening ashtray
Briefly touch cover plate1.
The ashtray opens automatically.Removing ashtray insert
Secure vehicle from movement by set-
ting the parking brake. Move the selec-
tor lever to positionN.
Now you have more room to take out
the insert.
Push sliding button2 to the right.
The ashtray is disengaged and slides a
short way in direction of arrow 3.
Remove insert from ashtray frame.Reinstalling the ashtray insert
Install insert by pushing back into
frame until it engages again.
Warning!
G
Remove front ashtray only with vehicle
standing still. Set the parking brake to se-
cure vehicle from movement. Move gear se-
lector lever to positionN. With gear selector
lever in positionN, turn off the engine.
Page 282 of 394
282 Practical hintsWhat to do if …?Lamp in center consoleProblem
Possible cause
Suggested solution
7
The indicator lamp lights up.
A BabySmart
TM child seat is installed on the
front passenger seat. Therefore the front
passenger airbag is switched off.
Have the system checked as soon as
possible by an authorized
Mercedes-Benz Center.
The system is malfunctioning when there is
no BabySmart
TM child seat installed on the
front passenger seat.
7
The indicator lamp does not light
up with a BabySmart
TM child
seat properly installed on the
front passenger seat.
The system is malfunctioning.
Make sure that there is nothing be-
tween seat cushion and child seat and
check installation of the child seat.
If the light remains out, have the sys-
tem checked as soon as possible by
an authorized Mercedes-Benz Center.
Do not use the BabySmart
TM restraint
to transport children on the front pas-
senger seat until the system has been
repaired.
Page 361 of 394

361 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.
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.BabySmart
TM
airbag 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 airbag when such a
seat is properly installed (indicator
lamp
7
in the center console lights
up). See your authorized
Mercedes-Benz Center for availability.
BabySmartTM
compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger side airbag if a BabySmart
TM
compatible child seat is installed.BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.
Bi-Xenon headlamps*
Headlamps which use an electric arc as
the light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.