Page 97 of 521

96 Safety and SecurityDriving safety systems
Switching on the ESP
®
Press ESP
® switch1.
The ABS/ESP® warning lamp v in
the instrument cluster goes out.
You are now again in normal driving
mode with the ESP
® switched on.
Electrohydraulic brake system
The electrohydraulic brake system com-
bines a hydraulic brake circuit with elec-
tronically controlled brake servo
assistance. You have increased braking
safety and improved braking comfort.
Warning!
G
When the ABS/ESP
® warning lamp v is
illuminated continuously, the ESP
® is
switched off.
Adapt your speed and driving to the prevail-
ing road conditions and to the non-operating
status of the ESP
®.
!Avoid spinning of a drive wheel for an
extended period with the ESP
®
switched off. This may cause serious
damage to the drivetrain which is not
covered by the Mercedes-Benz Limited
Warranty.
!Turn on the ESP
® immediately if the
aforementioned circumstances do not
apply anymore.
Warning!
G
Never ignore a brake malfunction indicated
in the speedometer display, for example by
the ; (USA only) or 3 (Canada only)
warning lamp. Refer to the “Practical hints”
section (
page 374). Also read and ob-
serve the messages in the instrument clus-
ter display (page 383).
Page 98 of 521

97 Safety and Security
Driving safety systems
The electrohydraulic brake system is auto-
matically activated when you:
unlock the vehicle with the SmartKey
or the KEYLESS-GO*
open the driver’s or passenger door
turn the SmartKey in the starter switch
to position1
in vehicles with KEYLESS-GO*, press
the start/stop button on the gear se-
lector lever once
depress the brake pedal
release the parking brake
Warning!
G
The electrohydraulic brake system requires
electrical power to operate.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. In such a case, the
red brake warning lamp (
page 374) and
warning messages in the instrument cluster
(
page 383) come on while driving. To
brake, the driver must then apply signifi-
cantly greater brake pedal pressure and de-
press the pedal much further to obtain the
expected braking effect. If necessary, apply
full pressure to the brake pedal. Brakes may
only be applied to the front wheels. Stop-
ping distance is increased!
If there is a malfunction in the electrohy-
draulic brake system, we recommend that
the vehicle be transported with all wheels
off the ground using flatbed or appropriate
wheel lift/dolly equipment. A tow bar must
be used if circumstances do not permit the
use of the recommended towing methods
and the vehicle requires towing with all four
wheels on the ground. Towing the vehicle
with all four wheels on the ground is only
permissible for distances up to 30 miles
(50 km) and at a speed not to exceed
30 mph (50 km/h). For more information,
refer to “Towing the vehicle” (
page 458).
Page 100 of 521

99 Safety and Security
Driving safety systems
Note on driving with the
electrohydraulic brake system
Following extended periods of only
minor loads to your brake system, you
should occasionally apply the brakes
when traveling at high speeds. This
improves the grip of the brake pads.
After driving on wet or snow-covered
roads, you should apply your brakes
firmly before parking your vehicle. This
produces heat which serves to dry the
brake disks and help prevent corro-
sion.
On long and steep grades, shift to a
lower gear (gear range1, 2, or 3) to
prevent the brakes from overheating
and to reduce brake wear.
After hard braking, it is advisable to
drive on for some time so that the air
stream will cool down the brakes fast-
er.
Only Mercedes-Benz approved compo-
nents (e.g. brake pads) should be
installed on your vehicle. Brake pads
not approved by Mercedes-Benz may
impair the safety of your vehicle.Four wheel electronic traction system
(4MATIC) with the ESP
®
Models with all-wheel-drive only.
The 4MATIC improves vehicle’s ability to
use available traction, e.g. during winter
operation in mountains under snowy
conditions, by applying power to all four
wheels.
Warning!
G
Be very careful not to endanger other road
users when you apply the brakes.
Page 128 of 521

127 Controls in detail
Locking and unlocking
Automatic central locking
The doors and the tailgate automatically
lock when the ignition is switched on and
the wheels are turning at vehicle speeds of
approximately 9 mph (15 km / h) or more.
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.For more information on towing the vehi-
cle, see “Towing the vehicle” (
page 458).
You can deactivate the automatic locking
mode using the control system
(
page 176).
Warning!
G
Monitor the closing procedure carefully to
make sure no one is in danger of being in-
jured. To prevent possible personal injury,
always keep hands and fingers away from
the cargo compartment opening when clos-
ing the tailgate. Be especially careful when
small children are around. To stop the clos-
ing procedure, do one of the following:
press KEYLESS-GO locking / closing
switch 1
press tailgate closing switch1
(page 125)
press button Š on the SmartKey with
KEYLESS-GO (
page 111)
pull the remote tailgate switch (on the
driver’s door) (
page 121)
Even with the SmartKey with KEYLESS-GO
removed from the vehicle, the locking/clos-
ing switch can be operated. Therefore, 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.Warning!
G
Only drive with the tailgate closed as,
among other dangers such as blocked visi-
bility, exhaust fumes may enter the vehicle
interior.
iThe doors unlock automatically after an
accident if the force of the impact ex-
ceeds a preset threshold.
The vehicle automatically locks when
the ignition is switched on and the
wheels are turning at vehicle speeds of
approximately 9 mph (15 km / h) or
more. You could therefore lock yourself
out when the vehicle
is pushed or towed
is on a test stand
Page 141 of 521

140 Controls in detailMemory functionPrior to operating the vehicle, the driver
should check and adjust the seat height,
seat position fore and aft, and seat back-
rest angle if necessary, to ensure adequate
control, reach and comfort. The head re-
straint should also be adjusted for proper
height. See also the section on air bags
(page 67) for more information on prop-
er seat positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, operation
and comfort. Both the interior and outside
rear view mirrors should be adjusted for
adequate rear vision.
Fasten seat belts. Infants and small chil-
dren should be seated in a properly se-
cured restraint system that complies with
U.S. Federal Motor Vehicle Safety Stan-
dards 213 and 225 and Canadian Motor
Vehicle Safety Standards 213 and 210.2.The following settings are stored when
using the buttons on the driver’s door:
Driver’s seat, backrest and head
restraint position and settings for
multicontour seat
Steering wheel position
Exterior rear view mirror positions
The following settings are stored when us-
ing the buttons on the front passenger
door:
Front passenger seat, backrest and
head restraint position and settings for
multicontour seatThe memory button and memory position
buttons are located on the door.
MMemory button
1, 2, 3Memory position button
Switch on the ignition (
page 36).
or
Open the respective door.
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.
Page 142 of 521

141 Controls in detail
Memory function
Storing positions into memory
Adjust the seats, steering wheel and
exterior rear view mirrors to the de-
sired position (
page 40).
Press memory buttonM.
Release memory buttonM and press
memory position button 1, 2 or 3 with-
in 3 seconds.
All the settings are stored at 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.Storing exterior rear view mirror park-
ing position
For easier parking, you can adjust the
passenger-side exterior rear view mirror so
that you can see the right rear wheel as
soon as you engage reverse gearR.
For information on activating the parking
position, see “Activating exterior rear view
mirror parking position” (
page 198).
!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 143 of 521
142 Controls in detailMemory function1Passenger side, exterior rear view mir-
ror
2Adjustment button
Stop the vehicle.
Switch on the ignition (
page 36).
Press button1.
The passenger-side exterior rear view
mirror is selected.
Adjust the exterior rear view mirror
with button2 so that you see the rear
wheel and the road curb.
Press memory button M.
Within 3 seconds, press bottom of ad-
justment button2.
The parking position is stored if the
mirror does not move.iIf the mirror does move, repeat the
above steps. After the setting is stored,
you can move the mirror again.
Page 144 of 521

143 Controls in detail
Lighting
Lighting
For information on how to switch on the
headlamps and use the turn signals, see
“Switching on headlamps” (
page 54)
and see “Turn signals” (
page 54).
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.Exterior lamp switchMOff
Daytime running lamp mode
(
page 144)
UAutomatic headlamp mode
Daytime running lamp mode
(page 144)
CParking lamps (also tail lamps,
license plate lamps, side marker
lamps, instrument panel lamps)BLow beam headlamps (or high
beam headlamps when the combi-
nation switch is pushed forward)
and parking lamps
ˆStanding lamps, right (turn left one
stop)
‚Standing lamps, left (turn left two
stops)
¥Indicator lamp for front fog lamps
¨Indicator lamp for rear fog lamp
iIf you drive in countries where vehicles
drive on the other side of the road than
the country where the vehicle is regis-
tered, you must have the headlamps
modified for symmetrical low beams.
Relevant information can be obtained
at your authorized Mercedes-Benz
Center.iVehicles equipped with active
Bi-Xenon* headlamps:
The active Bi-Xenon headlamps moni-
tor your steering angle and driving
speed, then automatically shift their
beams to either side to better follow
the curvature of the road ahead, in-
creasing usable illumination over con-
ventional headlamps.
iWith the SmartKey removed from the
starter switch or the engine turned off
with KEYLESS-GO* and the driver’s
door open, a warning sounds if the
parking lamps or low beam headlamps
are switched on.
The message
Switch off lamps
ap-
pears in the multifunction display.