Page 85 of 309

The hazard warning lamp switches on auto-
matically if:
R an airbag is deployed.
R the vehicle is braked to a standstill from a
speed of over 70 km/h.
The hazard warning lamps still operate if the
ignition is switched off.
X To switch on: press button:.
All turn signals flash.
X Hazard warning lights on one side: push
the combination switch in the direction of
arrow ForH past the point of resistance
(Y page 80).
The indicator lamp flashes on the corre-
sponding side of the vehicle.
X To switch off: press button:.
The hazard warning lamp switches off auto-
matically after full brake application if the
vehicle then reaches a speed of over
10 km/h again.
Intelligent Light System* (bi-xenon
headlamps*) The Intelligent Light System is a system which
adjusts the headlamps automatically to suit
the prevailing driving and weather conditions.
The bi-xenon headlamps offer enhanced func-
tions to improve illumination of the road sur-
face, e.g. depending on the vehicle speed or
weather conditions. The system includes the
active light function, motorway mode and
extended range foglamps. The system is only
active when it is dark.
You can activate or deactivate the "Intelligent
Light System" using the on-board computer
(Y page 106). Active light function The active light function is a system that
moves the headlamps according to the steer-
ing movements of the front wheels. In this
way, relevant areas remain illuminated while
driving. This allows you to recognise pedes-
trians, cyclists and animals.
Motorway mode
Motorway mode increases the range of the
beam.
Active:
R
If you are driving at speeds above
110 km/ha nd do not make any large steer-
ing movements for 1000 m.
R If you are driving at speeds above
130 km/h.
Motorway mode remains active unless your
speed drops speeds below 80 km/h.
Not active: if you are driving at speeds below
80 km/h. 82
LightsControls
* optional
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Page 207 of 309

!
Do not clean the ball coupling with a high-
pressure cleaner. Do not use solvents. :
Ball neck head
; Locking balls
= Guide pin
? Guide faces
A Release lever
B Protective cap
X After cleaning, lightly oil or grease posi-
tions :toB and the ball coupling recess
of the vehicle.
X Treat the lock under protective cap Bwith
an acid and resin-free oil.
X Check that the vehicle's trailer coupling is
working properly.
! Observe the note on care provided by the
trailer manufacturer.
i Maintenance of the ball coupling and
trailer coupling can also be performed by
any Mercedes-Benz Service Centre. H
Environmental note
Dispose of oily and greasy cloths in an envi-
ronmentally-responsible manner. Interior care
Cleaning the steering wheel boss and
dashboard G
Risk of injury
When cleaning the steering wheel boss and
dashboard, do not use cockpit sprays or
cleaning agents containing solvents. Cleaning
agents containing solvents cause the surface
to become porous, and as a result plastic
parts may break away and be thrown around
the interior when an airbag is deployed which
may result in severe injuries.
X Wipe the dashboard and steering wheel
boss with a damp, lint-free cloth (e.g. a
microfibre cloth) and cleaning agent.
X Heavy soiling: use car care and cleaning
products recommended and approved by
Mercedes-Benz.
Cleaning the COMAND display X
Before cleaning the display, make sure that
it is switched off and has cooled down.
X Clean the display surface using a commer-
cially-available microfibre cloth and TFT/
LCD display cleaner.
X Dry the display surface using a dry micro-
fibre cloth.
! For cleaning, do not use any of the fol-
lowing:
R alcohol-based solvents or petrol
R abrasive cleaning agents
R commercially-available household clean-
ing agents
These may damage the display surface. Do
not exert pressure when cleaning the dis-
play surface as this may lead to irreversible
damage.
Cleaning the seat covers !
Do not use microfibre cloths to clean gen-
uine leather, artificial leather or 204
CareOperation
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Page 237 of 309

Problem
Possible causes/consequences and
X XSolutions The indicator lamp in
the
Á button on the
2-zone automatic air
conditioning
Thermatic/multi-zone
intelligent automatic
air conditioning
Thermotronic* control
panel is lit. The cooling
system cannot be
switched on. Cooling has been deactivated due to a malfunction.
X
Visit a qualified specialist workshop. The indicator lamp in
the
ª rear-window
heating button is flash-
ing. The rear-window
heating has switched
off prematurely or can-
not be switched on. The on-board voltage is too low, because too many consumers are
switched on.
X
Switch off consumers that are not required, e.g. seat heating*
or interior lighting.
Once the battery is sufficiently charged, the rear window heating
will switch back on automatically. Vehicles with auto-
matic child seat recog-
nition on the front-
passenger seat*:
The
4 PASSENGER
AIRBAG OFF warning
lamp on the centre con-
sole is lit. A special Mercedes-Benz child seat with automatic child seat rec-
ognition has been fitted to the front-passenger seat. The front-
passenger airbag has therefore been disabled as desired.
G
Risk of injury
There is no child seat fitted to the front-passenger seat. The auto-
matic child seat recognition* is malfunctioning.
X Remove electronic equipment from the front-passenger seat,
for example:
R
notebook
R mobile phone
R cards with transponders, e.g. ski passes or access passes
If the 4 PASSENGER AIRBAG OFF warning lamp is still lit:
X Visit a qualified specialist workshop. 234
TroubleshootingPractical advice
* optional
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