
Adjustment in 10 km/h increments
X
Briefly press the cruise control lever
beyond the pressure point, up :for a
higher speed or down ?for a lower speed.
The last speed stored is increased or
reduced.
Deactivating cruise control There are several ways to deactivate cruise
control:
X
Briefly press the cruise control lever for-
wards B.
or
X Brake.
or
X Briefly press the cruise control lever in the
direction of arrow A.
Variable Speedtronic is selected. LIM indi-
cator lamp ;in the cruise control lever
lights up.
Cruise control is automatically deactivated if:
R you depress the parking brake.
R you drive at less than 30 km/h
R ESP ®
intervenes or you deactivate ESP ®
R you change into neutral in a vehicle with
manual transmission while driving or if the
clutch is depressed for longer than 6 sec-
onds
R on vehicles with manual transmission, you
shift to a higher gear and as a result the
engine speed is too low
R you move the selector lever to Non vehi-
cles with automatic transmission* while
driving
If cruise control is deactivated, you will hear
a warning tone. You see the Cruise con‐
trol off message in the multi-function dis-
play for approximately five seconds.
i The last speed stored is cleared when you
switch off the engine. Distronic Plus*
i Distronic Plus is not available in all coun-
tries.
Distronic Plus regulates the speed and auto-
matically maintains the distance to the vehi-
cle in front. It brakes automatically in order
to avoid exceeding the set speed. On long and
steep downhill gradients, especially if the
vehicle is laden or towing a trailer, you must
select shift range 1,2or 3in good time. By
doing so, you will make use of the braking
effect of the engine, which relieves the load
on the brake system and prevents the brakes
from overheating and wearing too quickly. G
Risk of accident
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
Risk of accident
Distronic Plus is only an aid designed to assist
driving. The driver is fully responsible for the
vehicle's distance from other vehicles, the
vehicle's speed and for braking in good time.
Distronic Plus does not react to:
R pedestrians
R stationary obstacles on the road, e.g. stop-
ped or parked vehicles
R oncoming and crossing traffic
Distronic Plus may not detect narrow vehicles
driving in front, e.g. motorcycles, or vehicles
driving on a different line. Therefore, always
pay attention to traffic conditions even when
Distronic Plus is activated. Otherwise, you
may fail to recognise dangers in time, cause
an accident and injure yourself and others.
If a slower-moving vehicle is detected in front,
Distronic Plus causes your vehicle to brake
and maintain a preset distance to the vehicle
in front. 140
Driving systemsCont
rols
* optional
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of its narrow width. The distance to the vehi-
cle in front will be too short.
Obstructions and stationary vehicles Distronic Plus does not brake for obstacles or
stationary vehicles. For example, if the detec-
ted vehicle turns a corner and reveals an
obstacle or stationary vehicle, Distronic Plus
will not brake for these.
Crossing vehicles Distronic Plus may detect vehicles that are
crossing your lane by mistake. Activating Dis-
tronic Plus at traffic lights with crossing traf-
fic, for example, could cause your vehicle to
pull away unintentionally. Speedtronic
Speedtronic brakes automatically so that you
do not exceed the set speed. On long and
steep downhill gradients, especially if the
vehicle is laden or towing a trailer, you must
shift to a lower gear in good time or select
shift range 1,2or 3on vehicles with auto- matic transmission*. By doing so, you will
make use of the braking effect of the engine,
which relieves the load on the brake system
and prevents the brakes from overheating
and wearing too quickly. If you need addi-
tional braking, depress the brake pedal
repeatedly rather than continuously. G
Risk of accident
Never depress the brake pedal continuously
while the vehicle is in motion, e.g. never cause
the brakes to rub by applying constant slight
pedal pressure. This causes the brake system
to overheat, increases the braking distance
and can lead to the brakes failing completely. G
Risk of accident
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid.
You can set a variable or permanent limit
speed:
R variable for speed limits, e.g. in built-up
areas
R permanent for long-term speed restric-
tions, e.g. for driving on winter tyres
(Y page 150) G
Risk of accident
Speedtronic is only an aid designed to assist
driving. You are responsible for the vehicle's
speed and for braking in good time.
i The speed indicated in the speedometer
may differ slightly from the limit speed
stored.
Variable Speedtronic With the cruise control lever, you can operate
cruise control, Distronic Plus* and variable
Speedtronic.148
Driving systemsControls
* optional
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R
the boot lid/tail gate is open
R in heavy rain, snow or fog
R at night or in very dark places
R if the camera is exposed to very bright light
R if the area is lit by fluorescent light (the dis-
play may flicker)
R if there is a sudden change in temperature,
e.g. when driving into a heated garage in
winter
R if the camera lens is dirty or obstructed
R if the rear of your vehicle is damaged. In this
event have the camera position and setting
checked at a qualified specialist workshop.
Mercedes-Benz recommends that you use
a Mercedes-Benz Service Centre for this
purpose.
Do not use the reversing camera in these
types of situation. You could, otherwise,
injure others or damage objects and your
vehicle while you are parking.
Activating the reversing camera X
Make sure that the key is in position 2in
the ignition lock.
X Make sure that the "Reversing camera"
function is selected in COMAND APS (see
the separate operating instructions for
COMAND APS).
X Engage reverse gear.
The area behind the vehicle is shown in the
COMAND APS display.
You can select not to show the area behind
the vehicle in the COMAND APS display (see
the separate operating instructions for
COMAND APS). ATTENTION ASSIST
ATTENTION ASSIST helps you on long, monot-
onous journeys such as on motorways and
trunk roads. It is active at speeds between 80
and 180 km/h. If ATTENTION ASSIST detects tiredness or increasing lapses in concentra-
tion on the part of the driver, it suggests a
break. G
Risk of accident
ATTENTION ASSIST is only an aid and may
detect your tiredness or lapses in concentra-
tion too late or not at all. It is not a substitute
for a well rested and attentive driver.
Fatigue may cause you to recognise hazard-
ous situations too late, misjudge a situation
or react slower. For this reason, make sure
you feel rested before you begin driving and
during your journey. Always take breaks in
good time and regularly, especially during
long journeys. Otherwise, you may fail to rec-
ognise dangers in time, cause an accident and
injure yourself and others.
ATTENTION ASSIST assesses your level of
fatigue or increasing inattentiveness taking
into consideration the following criteria:
R personal driving style, e.g. steering charac-
teristics
R driving conditions, e. g. time, driving time
ATTENTION ASSIST's functionality is restric-
ted and warnings are delayed or do not
appear at all:
R if the road condition is poor, e.g. large
bumps or potholes
R there is a strong side wind
R you have adopted a very sporty driving style
with high cornering speeds or driving with
a high rate of acceleration
R if you are predominantly driving slower
than 80 km/h or faster than 180 km/h
R if you are currently operating or making a
call using COMAND APS*
R in active driving situations, for example, if
you are changing lanes or changing the
vehicle speed Driving systems
163Controls
* optional
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Warning and display messages in the
multi-function display Example: vehicles with automatic transmission
with a selector lever*
X Activate ATTENTION ASSIST with the on-
board computer (Y page 130).
Symbol :appears in the multi-function
display.
If ATTENTION ASSIST is active, it will not warn
you until at least 20 minutes after your jour-
ney has begun. You then hear an intermittent
warning tone and the Attention Assist:
Time for a break? message appears in the
multi-function display.
X If necessary, take a break.
X Press ato confirm the message.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take a break and ATTENTION ASSIST
still detects fatigue or increasing inattentive-
ness, you will see a warning again after
15 minutes at the earliest.
ATTENTION ASSIST is reset when you con-
tinue your journey and starts judging your
tiredness anew if:
R you switch off the engine.
R you take off your seat belt and open the
driver's door, e.g. for a change of drivers or
to take a break. Speed Limit Assist*
i Speed Limit Assist is not operational in all
countries.
Speed Limit Assist, in conjunction with your
navigation system*, shows you speed limits it has detected in the multi-function display.
The display appears when traffic signs stating
the speed limit have been detected.
Example
:
Traffic signs showing the speed limit
; End of speed limit zone
i Sign ;indicating the end of a speed limit
zone is detected, but is not shown in the
multi-function display.
Speed Limit Assist detects these signs with a
camera at the top of the windscreen. :
Speed Limit Assist camera G
Risk of accident
Speed Limit Assist is only an aid and may
detect speed limit signs incorrectly or not at
all.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to snow,
rain, fog or spray.
R there is glare, e.g. from the sun or from
oncoming traffic. 164
Driving systemsControls
* optional
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R
the windscreen is dirty, misted up or cov-
ered, for instance by a sticker, in the vicinity
of the camera.
R the traffic signs are covered, for instance
by dirt, snow or trees.
R the traffic signs are poorly illuminated.
R there are ambiguous traffic signs, for
instance near roadworks or on multi-lane
roads.
Traffic signs always have priority over the
Speed Limit Assist display. Speed Limit Assist
cannot detect road and traffic conditions. It is
not a substitute for attentive driving.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others.
Multi-function display Example: vehicles with automatic transmission
with a selector lever*
:
Traffic sign symbol showing the speed
limit
; Speed Limit Assist is available and the
warning function is switched on in the on-
board computer
= Units used in the traffic sign displayed
X Activate the Speed Limit Assist warning
function using the on-board computer
(Y page 129).
Symbol ;appears. When a speed limit
sign is detected, the speed limit appears in
the multi-function display :for approx- imately five seconds. Other items in the
multi-function display are suppressed dur-
ing this time.
or
X Display Speed Limit Assist using the on-
board computer (Y page 129).
When a speed limit sign is detected, the
speed limit appears in the multi-function
display :.
Speed limit :is generally displayed until:
R the traffic sign indicating the end of the
speed limit zone is detected.
R you make a turn.
R you leave or enter a city or town.
R the road type changes (e.g. motorway,
secondary road).
R you have travelled a certain minimum
distance without the road sign being
repeated or detected again. Night View Assist Plus*
In addition to the illumination provided by the
normal headlamps, Night View Assist Plus
uses infrared light to illuminate the road. A
camera at the top of the windscreen picks up
the infrared light and displays a black and
white image in the COMAND APS display. The
image displayed in COMAND APS corre-
sponds to a road lit up by main-beam head-
lamps. This enables you to see the road's
course and any obstacles in good time. If
pedestrian recognition is activated, pedes-
trians recognised by the system are highligh-
ted in the Night View Assist Plus display. G
Risk of accident
Night View Assist Plus is only an aid designed
to assist driving and does not relieve you of
the responsibility to pay attention. Continue
to look through the windscreen instead of
relying on the Night View Assist Plus display.
You are responsible for safety and must drive
in accordance with traffic conditions. You Driving systems
165Controls
* optional
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i
The infrared headlamps only switch on
when the vehicle is driving at speeds of at
least 10 km/h. This means that you do not
have the full visual range while stationary
and cannot check whether Night View
Assist Plus is working.
Pedestrian recognition The Night View Assist Plus recognises pedes-
trians using typical characteristics, i. e. a sil-
houette in the shape of a person.
Pedestrian recognition is activated, if:
R Night View Assist Plus is activated
R you are driving faster than about 10 km/h
R the surroundings are dark, e. g. when driv-
ing outside built-up areas without street
lighting
If pedestrian recognition is active, sym-
bol ?appears. If a pedestrian is now recog-
nised, they are framed =and thereby high-
lighted. If the pedestrian recognition system
has brought a pedestrian to your attention,
look through the windscreen to evaluate the
situation. The actual distance to objects and
pedestrians cannot be gauged accurately by
looking at a screen.
It may be the case that objects are highlighted
as well as pedestrians. G
Risk of accident
Pedestrian recognition may be impaired or
inoperative, if:
R pedestrians are partially or completely
obscured by objects, e. g. by parked vehi-
cles
R the silhouette in the Night View Assist Plus
display is incomplete or interrupted, e. g. by
powerful light reflections
R pedestrians do not contrast with the sur-
roundings
R pedestrians are not in an upright position,
e. g. sitting, squatting or lying i
Animals are not recognised by pedestrian
recognition.
Misted up or dirty windscreen If the windscreen in front of the camera is
misted up or dirty on the inside or outside, the
Night View Assist Plus display is affected.
X To demist: check the automatic air-condi-
tioning settings (Y page 179) and fold
down the camera cover (Y page 245).
X To demist the inside of the wind-
screen: fold down the camera cover and
clean the windscreen (Y page 242). Lane package*
The lane package consists of Blind Spot
Assist and Lane Keeping Assist.
Blind Spot Assist Blind Spot Assist uses a radar sensor system
to monitor the area on both sides of your
vehicle. It supports you when you change
lanes at speeds above 30 km/h. In each case,
a warning lamp appears in the exterior mirror
as soon as a vehicle is detected in the area
monitored. When you switch on the corre-
sponding turn signal prior to changing lanes,
you receive an optical and acoustic collision
warning. For this purpose, Blind Spot Assist
uses sensors in the rear bumper.
G
Risk of accident
Blind Spot Assist is only an aid and may not
detect all vehicles. Blind Spot Assist does not
relieve you of the responsibility of paying
attention.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others.
The radar sensor system is automatically
deactivated near radio telescope facilities
(Y page 362). Driving systems
167Controls
* optional
212_AKB; 2; 4, en-GB
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Lane Keeping Assist monitors the area in
front of your vehicle by means of a camera at
the top of the windscreen. :
Lane Keeping Assist camera
In order that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system recognises certain con-
ditions and warns you accordingly.
The warning occurs earlier if:
R you cut a corner on the outside.
R the road has very wide lanes, e.g. a motor-
way.
R the system recognises solid lane markings,
as crossing these often results in a critical
situation, e.g. in the case of hard shoulders
or crash barriers.
The warning occurs later if:
R the road has narrow lanes.
R you cut a corner on the inside.
No warning occurs if:
R you actively steer, brake or depress the
accelerator pedal, e.g. when changing lane,
overtaking, accelerating or leaving the
motorway.
R you cut the corner on a sharp bend.
R you drive around a very sharp bend.
R you switch on the turn signals. In this event
the warnings are suppressed for a certain
period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
. G
Risk of accident
Lane Keeping Assist does not keep your vehi-
cle in its lane. It is only an aid and may detect
the lane markings on the road incorrectly or
not at all.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to snow,
rain, fog or spray.
R there is glare, e.g. from the sun or from
oncoming traffic.
R the windscreen is dirty, misted up or cov-
ered, for instance by a sticker, in the vicinity
of the camera.
R there are no lane markings.
R the lane markings are worn away, dark or
covered up, e.g. by dirt or snow.
R the distance to the vehicle in front is too
short.
R there are ambiguous lane markings on the
road, e.g. near roadworks.
R there are short-term changes to the mark-
ings, e.g. filter lanes or motorway exits.
R the road is narrow and winding.
Lane Keeping Assist cannot detect road and
traffic conditions. It is not a substitute for
attentive driving.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others.
Activating Lane Keeping Assist Example: vehicles with automatic transmission
with a selector lever* 170
Driving systemsControls
* optional
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X
Convenience opening: press and hold the
g button for a second until the side win-
dows and the sliding/tilting sunroof*/pan-
orama sliding sunroof* have reached their
original position.
The indicator lamp above the gbutton
goes out. Air-recirculation mode is deacti-
vated.
i If you open the side windows or the slid-
ing/tilting sunroof* or panorama sliding
sunroof* manually after closing with the
convenience closing feature, they will
remain in this position when opened using
the convenience opening feature. Switching the residual heat on/off
The "residual heat" function is only available
with Thermotronic luxury 3-zone automatic
climate control*.
It is possible to make use of the residual heat
of the engine to continue heating the station-
ary vehicle for up to 30 minutes after the
engine has been switched off. The heating
time depends on the temperature that has
been set.
i The blower will run at a low speed regard-
less of the airflow setting.
i If you activate the "residual heat" function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
i It is possible that the "residual heat" func-
tion may be activated automatically an hour
after the key is removed. The vehicle is then
ventilated for 30 minutes to dry the air con-
ditioning system.
X Turn the key to position 0in the ignition
lock or remove it.
X To switch on: press theÌbutton.
The indicator lamp above the Ìbutton
lights up. X
To deactivate: press theÌbutton.
The indicator lamp above the Ìbutton
goes out.
i The residual heat automatically switches
off after around 30 minutes or if:
R the ignition is switched on
R the battery voltage drops Switching the auxiliary heating/ven-
tilation* on/off
Notes on the auxiliary heating/ventila-
tion system G
Risk of poisoning
Exhaust fumes are produced when the auxili-
ary heating is in operation. Inhaling these
exhaust fumes can be poisonous. You should
therefore switch off the auxiliary heating in
confined spaces without an extraction sys-
tem, e.g. a garage. G
Risk of fire
When operating the auxiliary heating, parts of
the vehicle may become very hot, and highly
inflammable material such as fuels could be
ignited. Operating the auxiliary heating is thus
prohibited at filling stations or when your vehi-
cle is being refuelled. You must therefore
switch off the auxiliary heating at filling sta-
tions.
i Switch the auxiliary heating on regularly
once a month for about ten minutes.
The auxiliary heating heats the air in the vehi-
cle interior to the set temperature without
using the heat of the running engine. The aux-
iliary heating is operated using the vehicle's
fuel. For this reason, the tank content must
be at least at reserve fuel level to ensure that
the auxiliary heating functions.
The auxiliary heating/ventilation automati-
cally adjusts to changes in temperature and
weather conditions. For this reason, the aux-
iliary heating could switch from ventilation Air conditioning
181Controls
* optional
212_AKB; 2; 4, en-GB
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