signal or turn the steering wheel to the
straight-ahead position
The cornering light function may remain lit for
a short time, but is automatically switched off
after no more than three minutes. Headlamps and indicator lamps
fogged up on the inside
The headlamps and the indicator lamps in the
exterior mirrors may fog up on the inside if
there is high atmospheric humidity.
X Drive with the headlamps switched on.
The level of moisture diminishes,
depending on the length of the journey and
the weather conditions (humidity and
temperature).
If the level of moisture does not diminish:
X Have the headlamps checked at a qualified
specialist workshop. Interior lighting
Overview of interior lighting
Front overhead control panel
0043
003D Switches the left-hand front reading
lamp on/off
0044 004A Switches the front interior lighting
on
0087 0041 Switches the cargo compartment
lamp/rear interior lighting on/off
0085 0033 Switches the front interior lighting/
automatic interior lighting control off 0083
003D Switches the right-hand reading
lamp on/off
0084 Switches the automatic interior lighting
control on Rear-compartment overhead control panel
0043
003D Switches the right-hand reading
lamp on/off
0044 003D Switches the left-hand reading lamp
on/off Interior lighting control
General notes The interior lighting functions are
automatically deactivated after some time
except for when the SmartKey is in position
2
in the ignition lock. This prevents your
vehicle's battery from discharging.
The brightness of the ambient lighting may be
set using the control on the instrument
cluster (Y page 205). Interior lighting
105Lights and windshield wipers Z
that these function correctly at all times.
Have the headlamp setting checked regularly.
Before changing bulbs
Have the following bulbs changed at a
qualified specialist workshop:
R Additional turn signals in the exterior
mirrors
R High-mounted brake lamp
R High-beam/low-beam headlamps (Xenon
bulbs)
R Daytime running lamps
R Parking lamps/standing lamps
R License plate lamp
i Individual segments of the license plate
lamp LEDs may fail without a display
message appearing in the multifunction
display. Regularly check the license plate
lamp. If necessary, visit a qualified
specialist workshop.
You can replace the following bulbs:
R Fog lamp/cornering light with fog lamp
function
R Turn signal lamp (front)
R Brake/tail lamp
R Turn signal lamp (rear)
R Tail lamps/standing lamps
R Backup lamp
R Rear fog lamp
R Side marker lamps G
WARNING
Bulbs and lamps can become very hot. For
this reason, allow them to cool down before
changing them. Otherwise, you could burn
yourself when you touch them.
Keep bulbs out of the reach of children.
Otherwise, they could, for example, damage
the bulbs and injure themselves.
Never use a bulb which has been dropped.
Such a bulb may explode and injure you.
Halogen bulbs are pressurized and could
explode when you change them, especially if
they are very hot. You should therefore wear eye protection and gloves when you are
changing them.
Other bulbs
There are bulbs other than the Xenon bulbs
that you cannot replace. Replace only the
bulbs listed (Y page 109). Have the bulbs that
you cannot replace yourself changed at a
qualified specialist workshop.
If you require assistance changing bulbs,
consult a qualified specialist workshop.
Do not touch the glass tube of new bulbs with
your bare hands. Even minor contamination
can burn into the glass surface and reduce
the service life of the bulbs. Always use a lint-
free cloth or only touch the base of the bulb
when installing.
Only use bulbs of the correct type.
If the new bulb still does not light up, consult
a qualified specialist workshop.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly. Overview: changing bulbs/bulb types
Front bulbs You can replace the following bulbs. The bulb
type can be found in the legend.
0043
Turn signal lamp: 1156 NA
0044 Side marker lamp: T 4 W
0087 Cornering light function with fog lamp
function: H11 55 W (except AMG vehicles) Replacing bulbs
109Lights andwindshield wipers Z
Rear bulbs
You can replace the following bulbs. The bulb
type can be found in the legend. 0043
Tail lamp/standing lamp: W 5 W
0044 Brake lamp/tail lamp: P 21/5 W
0087 Turn signal lamp: PY 21 W
0085 Side marker lamp: T 4 W
0083 Backup lamp: P 21 W
0084 Rear fog lamp: P 21 W Changing the front bulbs
Front fog lamps/cornering lamps with
fog lamp function X
Switch off the lights.
X Unscrew screws 0043.
X Remove cover 0044. X
Unscrew screws 0087.
i Only remove screws 0087. Do not turn
adjustment screw 0085. If adjustment
screw 0085has been turned, the front fog
lamp adjustment must be checked at a
qualified workshop.
X Remove lamp 0083. X
Hold lamp 0083.
X Lightly press bulb holder 0084, turn it
counter-clockwise to the stop and pull it
out. 110
Replacing bulbsLights and windshield wipers
X
Take bulb 006Bout of bulb holder 0084.
X Insert the new bulb into bulb holder 0084.
X Insert bulb holder 0084into lamp 0083and turn
it clockwise to the stop.
X Insert lamp 0083.
X Replace and tighten screws 0087.
X Position cover 0044.
X Replace and tighten screws 0043.
Turn signal !
Make sure that the protective grille does
not hit any painted surfaces.
You could otherwise damage the
paintwork.
! Do not fasten the screws too tightly. You
could otherwise damage the lens. Turn signal lamp with protection grille (AMG
vehicles)
X
Switch off the lights.
X AMG vehicles: pull protection grille 0043in
the direction of the arrow out of
mounting 0044.
X Fold up protection grille 0043. Example: turn signal lamp
X
Switch off the lights.
X Unscrew screws 0087.
X Remove lens 0085. Example: turn signal lamp Replacing bulbs
111Lights and windshield wipers Z
X
Unscrew screws 0044.
X Swing protection grille 0043to the right.
X After changing the bulbs, swing protection
grille 0043to the left.
X Tighten screws 0044.
Tail lamp !
When installing the lens, make sure that
the seal is positioned correctly.
! Do not fasten the screws too tightly. You
could otherwise damage the lens. X
Switch off the lights.
X Unscrew screws 0043.
X Remove lens 0044. 0087
Turn signal
0085 Brake/tail lamp
0083 Tail lamp/standing lamp X
Turn the corresponding bulb counter-
clockwise, applying slight pressure, and
remove it from the bulb holder.
X Insert the new bulb into the bulb holder and
turn it clockwise until it engages.
X Install lens 0044.
X Replace and tighten screws 0043.
X AMG vehicles: secure the protection grille
(Y page 112).
Backup lamp/rear fog lamp !
Do not fasten the screws too tightly. You
could otherwise damage the lens. Example: rear fog lamp
X
Switch off the lights.
X Unscrew screws 0044.
X Remove lens 0043. X
Turn bulb 0087anti-clockwise, applying slight
pressure, and remove it from the bulb
holder.
X Insert the new bulb into the bulb holder and
turn it clockwise until it engages. Replacing bulbs
113Lights and windshield wipers Z
Changing lanes
If you change to the passing lane, DISTRONIC
PLUS supports you when:
R you are driving faster than 40 mph
(60 km/h).
R DISTRONIC PLUS is maintaining the
distance to a vehicle in front.
R you switch on the appropriate turn signal.
R DISTRONIC PLUS does not detect a danger
of collision.
If these conditions are fulfilled, your vehicle
is accelerated. Acceleration will be
interrupted if changing lanes takes too long
or if the distance between your vehicle and
the vehicle in front becomes too small.
i When changing lanes, DISTRONIC PLUS
monitors the left lane on left-hand drive
vehicles and the right lane on right-hand
drive vehicles.
Stopping G
WARNING
When leaving the vehicle, even if it is braked
only by DISTRONIC PLUS, it could roll away if:
R there is a malfunction in the system or in
the voltage supply.
R DISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by a
vehicle occupant or from outside the
vehicle.
R the electrical system in the engine
compartment, the battery or the fuses have
been tampered with.
R the battery is disconnected.
R the accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
DISTRONIC PLUS and secure the vehicle
against rolling away.
If DISTRONIC PLUS detects that the vehicle
in front is stopping, it brakes your vehicle until
it is stationary. Once your vehicle is stationary, it remains
stationary and you do not need to depress the
brake.
i
Depending on the specified minimum
distance, your vehicle will come to a
standstill at a sufficient distance behind the
vehicle in front. The specified minimum
distance is set using the control on the
cruise control lever.
On steep uphill or downhill inclines or if there
is a malfunction, the transmission may also
automatically be shifted into position P.
Displays in the instrument cluster Displays in the speedometer
Example: DISTRONIC PLUS displays in the
speedometer
When DISTRONIC PLUS is activated, one or
two segments
0044in the set speed range light
up.
If DISTRONIC PLUS detects a vehicle in front,
segments 0044between speed of the vehicle in
front 0043and stored speed 0087light up.
i For design reasons, the speed displayed
in the speedometer may differ slightly from
the speed set for DISTRONIC PLUS. Driving systems
181Driving and parking Z
Always observe the traffic conditions
carefully, and maintain a safe lateral distance.
Blind Spot Assist is only an aid. It may fail to
detect some vehicles and is no substitute for
attentive driving.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else
covering the sensors.
R visibility is poor, e.g. due to fog, heavy rain
or snow.
R there is a narrow vehicle traveling in front,
e.g. a motorcycle or bicycle.
R the road has very wide lanes.
R the road has narrow lanes.
R you are not driving in the middle of the lane.
R there are barriers or other road boundaries.
i USA only:
This device has been approved by the FCC
as a “Vehicular Radar System”. The radar
sensor is intended for use in an automotive
radar system only. Removal, tampering, or
altering of the device will void any
warranties, and is not permitted by the
FCC. Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
General notes Blind Spot Assist uses a radar sensor system
to monitor both the left and right sides of your
vehicle. It supports you from a speed of
approximately 20 mph (30 km/h). A warning
display in the exterior mirrors draws your
attention to vehicles detected in the
monitored area. If you then switch on the
corresponding turn signal to change lane, you
will also receive an optical and audible
collision warning. For this purpose, Blind Spot
Assist uses sensors in the rear bumper. Monitoring range of the sensors
Blind Spot Assist monitors the area up to
10 ft (3 m) behind your vehicle and directly
next to your vehicle, as shown in the diagram.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may
be indicated, especially if the vehicles are not
driving in the middle of their lane. This may
be the case if the vehicles are driving on the
inner side of their lane.
Due to the nature of the system:
R
warnings may be issued in error when
driving close to crash barriers or similar
solid lane borders.
R the warning is canceled when driving for an
extended period next to long vehicles, such
as trucks.
The two sensors for Blind Spot Assist are
integrated into the sides of the rear bumper.
Make sure that the bumper is free from dirt,
ice or slush around the sensors. The rear
sensors must not be covered, for example by
bicycle racks or overhanging loads. Following
a severe impact or in the event of damage to
the bumpers, have the function of the radar
sensors checked at a qualified specialist
workshop. Blind Spot Assist may otherwise
not work properly. 186
Driving systemsDriving and parking
Indicator and warning display
G
WARNING
Blind Spot Assist does not react to:
R vehicles overtaken too closely on the side,
placing them in the blind spot area
R vehicles approaching and driving by with a
speed difference of more than 6.8 mph
(11 km/h)
As a result, Blind Spot Assist may not give
warnings in such situations. There is a risk of
an accident.
Always observe the traffic conditions
carefully, and maintain a safe lateral distance. 0043
Yellow indicator lamp/red warning lamp
When Active Blind Spot Assist is activated,
indicator lamp 0043in the exterior mirrors lights
up yellow at speeds of up to
20 mph(30 km/h). At speeds above 20 mph
(30 km/h) the indicator lamp goes out and
Blind Spot Assist is operational.
If a vehicle is detected within the monitoring
range of Blind Spot Assist at speeds above
20 mph (30 km/h), warning lamp 0043on the
corresponding side lights up red. This warning
is always emitted when a vehicle enters the
blind spot monitoring range from behind or
from the side. When you overtake a vehicle,
the warning only occurs if the difference in
speed is less than 7 mph (12 km/h).
The yellow indicator lamp goes out if reverse
gear is engaged. In this event, Blind Spot
Assist is no longer active. The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light.
Collision warning 0043
Yellow indicator lamp/red warning lamp
If a vehicle is detected in the monitoring range
of Blind Spot Assist and you switch on the
corresponding turn signal, a double warning
tone sounds. Red warning lamp 0043flashes. If
the turn signal remains on, vehicles detected
are indicated by the flashing of red warning
lamp 0043. There are no further warning tones.
Switching on Blind Spot Assist 0043
Yellow indicator lamp/red warning lamp Driving systems
187Driving and parking Z