You alone accept the responsibility if body
manufacturers or dealers make modifications that affect the final certification of the engine,
the vehicle or the equipment. This also
applies to the identification and documenta-
tion of modifications to the affected vehicle
components.
You are responsible for certification and con- firmation that:
R all the applicable standards and regulations
that are affected by the vehicle modifica-
tion are met
R the modified vehicle fulfills the vehicle
safety standards and emissions laws and
regulations
R the modifications or installation of acces-
sories does not affect the safety of the
vehicle
We are not responsible for the final certifica-
tion, product liability or warranty claims
which result from the modifications. This
applies to:
R the modified components, assemblies or
systems
R any resulting noncompliance with any of
the emissions laws and regulations or the
motor vehicle safety standards
R any consequences arising from the
changes that make the vehicle less safe or even render it defective
We do not assume responsibility as the final- stage manufacturer or for the consequential
product liability.
Notes on the radiator Even seemingly small changes to the vehicle,
such as attaching a radiator trim for winter
driving, is not permitted. Do not cover up the radiator. Do not use thermal mats, insect pro-
tection covers or anything similar.
Otherwise, the values of the diagnostic sys-
tem may be affected. Some of these values
are legally prescribed and must always be
correct. Information on the cargo compartment
floor !
The wooden or plastic cargo area floor fit-
ted at the factory is an integral component
of the vehicle structure. The vehicle body
could be damaged if you have the load area floor removed. This then affects the secur-ing of loads and the maximum loading
capacity of the lashing points is no longer
guaranteed.
Therefore, do not have the load area floor
removed. Genuine Mercedes-Benz parts
! Air bags and Emergency Tensioning Devi-
ces, as well as control units and sensors for
these restraint systems, may be installed in the following areas of your vehicle:
R doors
R door pillars
R door sills
R seats
R cockpit
R instrument cluster
R center console
Do not install accessories such as audio
systems in these areas. Do not carry out
repairs or welding. You could impair the
operating efficiency of the restraint sys-
tems.
Have aftermarket accessories installed at a
qualified specialist workshop. H
Environmental note
We supply reconditioned assemblies and
parts which are of the same quality as new
parts. The same New Vehicle Limited War-
ranty applies as for new parts.
The operating safety of the vehicle could be
jeopardized if you use parts, tires and wheels
as well as accessories relevant to safety
which have not been approved by Mercedes-
Benz. This could lead to malfunctions in Introduction
27 Z
restraint system manufacturer's installa-
tion instructions.
Objects in the vehicle interior may pre-
vent an air bag from functioning correctly.
Before starting your journey and to avoid risks
resulting from the speed of the air bag as it
deploys, make sure that:
R there are no people, animals or objects
between the vehicle occupants and an air
bag.
R there are no objects between the seat, door
and B-pillar.
R no hard objects, e.g. coat hangers, hang on
the grab handles or coat hooks.
R no accessories, such as cup holders, are
attached to the vehicle within the deploy-
ment area of an air bag, e.g. to doors or side
windows.
R no heavy, sharp-edged or fragile objects
are in the pockets of your clothing. Store
such objects in a suitable place. G
WARNING
If you modify the air bag cover or affix objects
such as stickers to it, the air bag can no longer function correctly. There is an increased risk
of injury.
Never modify an air bag cover or affix objectsto it. G
WARNING
Sensors to control the air bags are located in the doors. Modifications or work not per-
formed correctly to the doors or door panel-
ing, as well as damaged doors, can lead to the
function of the sensors being impaired. The air bags might therefore not function properly
any more. Consequently, the air bags cannot
protect vehicle occupants as they are
designed to do. There is an increased risk of
injury.
Never modify the doors or parts of the doors.
Always have work on the doors or door pan-
eling carried out at a qualified specialist work- shop. Front air bags
Driver's air bag
0043deploys in front of the
steering wheel. Front-passenger front air
bag 0044deploys in front of and above the glove
box and the center console.
When deployed, the front air bags offer addi- tional head and thorax protection for the
occupants in the front seats.
Thorax bags G
WARNING
Unsuitable seat covers may obstruct or even
prevent deployment of the air bags integrated into the seats. The air bags may then fail to
protect the vehicle occupants as intended.
There is an increased risk of injury, possibly
even fatal.
Only use seat cushions that are approved for
your vehicle by the distributor named on the
inside cover page. Thorax bags
0043deploy next to the outer seat
cushions. 48
Occupant safetySafety
Tow-away alarm
Operation A visual and audible alarm is triggered if the
inclination of the vehicle changes when the
tow-away alarm is armed. This can be the
case if the vehicle is raised on one side, for
example.
Arming/disarming The tow-away alarm is automatically armed
approximately 20 second
s after you lock the
vehicle.
The tow-away alarm is automatically deacti-
vated when you unlock the vehicle.
Disarming X
Remove the key from the ignition lock.
X Press button 0043.
When the button is released, indicator
lamp 0044in the button lights up for about
5 second s.
X Lock the vehicle.
The tow-away alarm is disarmed.
The tow-away alarm remains disarmed until
you lock the vehicle again.
Disarm the tow-away alarm when locking
your vehicle and: R loading and/or transporting the vehicle, on
a ferry or car transporter, for example
R parking on a moving surface, as split-level
garage
This will prevent false alarms. Interior motion sensor
Operation If the armed interior motion sensor detects
motion in the vehicle interior, a visual and
acoustic alarm is triggered. This can happen if
someone reaches into the vehicle interior, for example.
Switching on X
Close the side windows.
X Make sure that nothing (such as mascots or
coat hangers) are hanging on the rear-view
mirror or on the grab handles on the head- liner.
This will prevent false alarms.
X Lock the vehicle.
The interior motion sensor is armed after
approximately 40 seconds.
Switching off X
Unlock vehicle.
The interior motion sensor automatically
switches off.
Deactivating X
Remove the key from the ignition lock.
X Press button 0043.
When the button is released, indicator
lamp 0044of the button lights up for about
5 seconds.
X Lock the vehicle.
The interior motion sensor is deactivated. 62
Theft deterrent locking systemSafety
The interior motion sensor remains deactiva-
ted until you lock the vehicle again.
Deactivate the interior motion sensor when
locking your vehicle:
R with people or animals remaining inside
R with the side windows remaining open
R when transporting it on a ferry or car trans-
porter, for example
This will prevent false alarms. Theft deterrent locking system
63Safety Z
This is not possible in countries where day-
time running lamps are a legal requirement.
The daytime running lamps function must be
activated using the on-board computer:
R vehicles with steering wheel buttons
(Y page 192)
R vehicles without steering wheel buttons
(Y page 183)
X To switch on: turn the light switch to the
003F position.
The low-beam headlamps, parking lamps
and license plate lamp are switched on
when the engine is running. The 0058indi-
cator lamp in the instrument cluster lights
up.
i USA only:
If you turn the light switch to the 0060or
0058 position, the parking lamps or low-
beam headlamps switch on. If you turn the light switch to the 0058position, the day-
time running lamps remain switched on.
i Canada only:
If you turn the light switch to the 0058
position, the low-beam headlamps are
switched on. If you turn the light switch to
the 0060 or0058 position, the daytime
running lamps remain switched on.
Automatic headlamp mode G
WARNING
When the light switch is set to 0058, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
0058.
Automatic headlamp mode is only a driving
aid. You are responsible for the vehicle light-
ing at all times.
Depending on ambient light, the rain and light sensor automatically switches on the parking lamps, low-beam headlamps and the license
plate lamp. This excludes weather-related
impairments to visibility, such as snow, fog or
spray.
If there is fog, snow or spray, turn the light
switch quickly from 0058to0058. You could
otherwise briefly interrupt operation of the
headlamps.
X To switch on automatic headlamp
mode: turn the light switch to 0058.
Key in position 1in the ignition lock: the
parking lamps switch on or off automati-
cally depending on the ambient light.
When the engine is running: if you activate
the "daytime running lamps" function using the on-board computer, the daytime run-
ning lamps are switched on. The parking
lamps and low-beam headlamps also
switch on or off automatically, depending
on the ambient light.
When the low-beam headlamps are
switched on, the 0058indicator lamp in the
instrument cluster lights up.
Fog lamps/rear fog lamp G
WARNING
If you suspect that driving conditions will be
foggy, turn the light switch to 0058before you
start your journey. Your vehicle may other-
wise not be visible and you could endanger
yourself and others. G
WARNING
In low ambient lighting or foggy conditions,
only switch from position 0058to0058 with
the vehicle at a standstill in a safe location.
Switching from 0058to0058 will briefly
switch off the headlamps. Doing so while driv-
ing in low ambient lighting conditions may
result in an accident.
X Turn the ignition key to position 2in the
ignition lock or start the engine.
X Turn the light switch to 0058or0060. Exterior lighting
93Lights and windshield wipers Z
Highbeam Assist
General notes You can use this function to set the head-
lamps to change between low beam and high beam automatically. The system recognizes
vehicles with their lights on, either approach-
ing from the opposite direction or traveling in front of your vehicle, and consequently
switches the headlamps from high beam to
low beam.
Once the system no longer detects any other
vehicles, it reactivates the high-beam head-
lamps.
The system's optical sensor is located behind the windshield near the overhead control
panel.
Important safety notes G
WARNING
Highbeam Assist does not recognize road
users:
R who have no lights, e.g. pedestrians
R who have poor lighting, e.g. cyclists
R whose lighting is blocked, e.g. by a barrier
In very rare cases, Highbeam Assist may fail to
recognize other road users who have lights, or
may recognize them too late. In this or similar situations, the automatic high-beam head-
lamps will not be deactivated or will be acti-
vated regardless. There is a risk of an acci-
dent.
Always carefully observe the traffic conditions and switch off the high-beam headlamps in
good time.
Highbeam Assist cannot take into account
road, weather or traffic conditions. Highbeam Assist is only an aid. You are responsible for
adjusting the vehicle's lighting to the prevail-
ing light, visibility and traffic conditions. In particular, the detection of obstacles can
be restricted if there is:
R poor visibility, e.g. due to fog, heavy rain or
snow
R dirt on the sensors or anything else cover-
ing the sensors
Activating/deactivating Highbeam
Assist X
To activate: switch on the Highbeam
Assist function using the on-board com-
puter (Y page 192).
X Turn the light switch to the 0058position.
X Press the combination switch beyond the
pressure point in the direction of arrow 0043
(Y page 94).
Highbeam Assist is active.
The 00CE or indicator lamp in the
multifunction display lights up when it is
dark and the light sensor activates the low-
beam headlamps.
If you are driving at speeds above approx-
imately 22 mph (35 km/h) and no other
road users have been detected:
The high-beam headlamps are switched on
automatically. The 0057indicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below approx-
imately 19 mph (30 km/h), other road
users are recognized or the roads are ade-
quately lit:
The high-beam headlamps are switched off automatically. The 0057indicator lamp in
the instrument cluster goes out. The 00CE
or indicator lamp in the multifunc-
tion display remains lit.
X To deactivate: move the combination
switch back to its normal position or move the light switch to another position.
The 00CE or indicator lamp in the
multifunction display goes out. 96
Exterior lightingLights and windshield wipers
Windshield wipers
Switching the windshield wiper
on/off
! Do not operate the windshield wipers
when the windshield is dry, as this could
damage the wiper blades. Moreover, dust
that has collected on the windshield can
scratch the glass if wiping takes place when the windshield is dry.
If it is necessary to switch on the windshield wipers in dry weather conditions, always
use washer fluid when operating the wind-
shield wipers.
! If the windshield wipers leave smears on
the windshield after the vehicle has been
washed in an automatic car wash, wax or
other residues may be the reason for this.
Clean the windshield using washer fluid
after washing the vehicle in an automatic
car wash.
! Vehicles with rain/light sensor:
Switch the wipers off in dry weather. Oth-
erwise, dirt or optical effects may cause
undesired windshield wiper sweeps. This
could then damage the windshield wiper
blades or scratch the windshield.
The windshield will no longer be wiped prop-
erly if the wiper blades are worn. Replace the wiper blades twice a year (Y page 108), ide-
ally in spring and fall. Combination switch X
Turn the key to position 1or 2in the ignition
lock.
X Turn the combination switch in the direc-
tion of arrow 0044to the appropriate setting
depending on the intensity of the rain.
X Single wipe: push the combination switch
briefly to the pressure point in the direction
of arrow 0043.
X To wipe with washer fluid: press the com-
bination switch beyond the pressure point
in the direction of arrow 0043.
The detent positions of the combination
switch correspond to the following wiper
speeds:
0W indshield wipers off
II ntermittent wipe
II Normal wipe
III Rapid wipe
i Canada only:
If the windshield wipers are switched on
and you stop the vehicle, the windshield
wiper speed is reduced. For example, if you have selected level IIand stop the vehicle,
wiping continues with intermittent wipe
while the vehicle is stationary. If intermit-
tent wipe is selected, the intervals become
longer.
Vehicles with a rain and light sensor:
you can use level Ias the universal setting.
The rain and light sensor sets the appropri-
ate wiping frequency automatically,
according to the intensity of the rain. When
you stop the vehicle, levels IIIand IIare
switched down to level Iautomatically.
The windshield wiper will return to the orig- inal level when you drive faster than 5 mph
(8 km/h).
You can adjust the sensitivity of the rain and
light sensor using the on-board computer
(Y page 193).
Information on checking the washer fluid
level can be found in the "Maintenance and
care" section (Y page 255). Windshield wipers
107Lights andwindshield wipers Z
Problems with cruise control
Problem
Possible causes/consequences and
0050
0050Solutions On vehicles with steer-
ing wheel buttons, the
speed cannot be set
when cruise control is
activated. The display shows a high-priority message. Thus a change in speed
is not possible.
X Proceed as instructed by the message in the display.
X Deactivate cruise control COLLISION PREVENTION ASSIST
General notes COLLISION PREVENTION ASSIST comprises
the distance warning function and adaptive
Brake Assist.
Distance warning function Important safety notes
i Note the section on 'Important safety
notes' (Y page 57). G
WARNING
The distance warning function does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
Thus, the distance warning function cannot
provide a warning in all critical situations.
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake. G
WARNING
The distance warning function cannot always
clearly identify objects and complex traffic
situations.
In such cases, the distance warning function
may:
R give an unnecessary warning
R not give a warning
There is a risk of an accident. Always pay careful attention to the traffic sit-
uation and do not rely solely on the distance
warning function.
Operation
The distance warning function can help you to
minimize the risk of a front-end collision with
a vehicle ahead or reduce the effects of such a collision. If the distance warning function
detects that there is a risk of a collision, you
will be warned visually and acoustically. With-out your intervention, the distance warning
function cannot prevent a collision.
The distance warning function will issue a
warning at speeds of around 20 mph
(30 km/h) or more if:
R you approach a vehicle ahead of you very
quickly. You will then hear an intermittent
warning tone and the 00C7warning lamp in
the instrument cluster flashes.
X Brake immediately in order to increase the
distance from the vehicle in front.
or
X Take evasive action provided it is safe to do
so.
If you want the distance warning function to
assist you, the function must be activated and operational.
Due to the nature of the system, particularly
complicated driving conditions may cause thesystem to display an unnecessary warning.
With the help of the radar sensor system, the
distance warning function can detect obsta-
cles that are in the path of your vehicle for an
extended period of time. Driving systems
161Driving and parking Z