tube when cold with alcohol or spirit and rub it
off with a lint-free cloth.
Protect bulbs from moisture during operation.
Do not allow bulbs to come into contact with
liquids.
Xenon bulbs
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.
LED modules
You can replace neither Xenon bulbs nor LED
bulbs. Have LED modules replaced at 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.
Before changing bulbs
Have the following bulbs replaced at a qualified
specialist workshop:
RAdditional turn signals in the exterior mirrors
RHigh-mounted brake lamp
RHigh-beam/low-beam headlamps (Xenon
bulbs)
RDaytime running lamps
RParking lamps/standing lamps
RLicense plate lamp
iIndividual segments of the license plate
lamp LEDs may fail without a display message
appearing in the multifunction di splay
. Regu-
larly check the license plate lamp. If neces-
sary, visit a qualified specialist workshop.
You can replace the following bulbs:
RTurn signal lamp (front)
RBrake/tail lamp
RTurn signal lamp (rear)
RTail lamps/standing lamps
RBackup Light
RRear fog lamp
RSide marker lamps
Other bulbs
There are bulbs other than the Xenon bulbs that you cannot replace yourself. Only replace the
bulbs listed (
Ypage 93). Have the bulbs that
you cannot replace yourself replaced at a quali-
fied specialist workshop.
If you require assistance replacing bulbs, con-
sult 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 ser-
vice life of the bulbs. Always use a lint-free cloth
or only touch the base of the bulb when instal-
ling.
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 co
rrectly 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.
:Turn signal lamp: 1156 NA
;Side marker lamp: T 4 W
Rear bulbs
You can replace the following bulbs. The bulb
type can be found in the legend.
Replacing bulbs93
Lights and windshield wiper s
Z
:Tail lamp/standing lamp: W 5 W
;Brake lamp/tail lamp: P 21/5 W
=Turn signal lamp: PY 21 W
?Side marker lamp: T 4 W
ABackup lamp: P 21 W
BRear fog lamp: P 21 W
Changing the front bulbs
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 vehi-
cles)
XSwitch off the lights.
XAMG vehicles: pull protection grille :in the
direction of the arrow out of mounting ;.
XFold up protection grille:.
Example: turn signal lamp
XSwitch off the lights.
XUnscrew screws=.
XRemove lens?.
Example: turn signal lamp
XTurn bulbAcounter-clockwise, applying
slight pressure, and remove it from the bulb
holder.
XInsert the new bulb into the bulb holder and,
applying slight pressure, turn it clockwise
until it engages.
XInstall lens ?.
XReplace and tighten screws =.
XAMG vehicles:fold down protection grille :
and allow it to engage in mounting ;.
Side marker lamps
!Do not fasten the screws too tightly. You
could otherwise damage the lens.
94Replacing bulbs
Lights and windshield wipers
XSwitch off the lights.
XUnscrew screws:.
XRemove lens;.
=Turn signal
?Brake/tail lamp
ATail lamps/standing lamps
XTurn the corresponding bulb counter-clock-
wise, applying slight pressure, and remove it
from the bulb holder.
XInsert the new bulb into the bulb holder and,
applying slight pressure, turn it clockwise
until it engages.
XInstall lens;.
XReplace and tighten screws :.
XAMG vehicles:secure the protection grille
(Ypage 95).
Backup lamp/rear fog lamp
!Do not fasten the screws too tightly. You
could otherwise damage the lens.
Example: rear fog lamp
XSwitch off the lights.
XUnscrew screws ;.
XRemove lens:.
XTurn bulb=counter-clockwise, applying
slight pressure, and remove it from the bulb
holder.
XInsert the new bulb into the bulb holder and,
applying slight pressure, turn it clockwise
until it engages.
XInstall lens :.
XReplace and tighten screws ;.
Windshield wipers
Switching the windshield wipers
on/off
!
Do not operate the windshield wipers when
the windshield is dry, as this could damage
the wiper blades. Moreover, dust that has col-
lected on the windshield/rear window can
scratch the glass if wiping takes place when
the windshield/rear window is dry.
If it is necessary to switch on the windshield
wipers in dry weather conditions, always use
washer fluid when operating the windshield
wipers.
!If the windshield wipers leave smears on the
windshield/rear window after the vehicle has
been washed in an automatic car wash, this
may be due to wax or other residue. Clean the
windshield/rear window with washer fluid
after an automatic car wash.
!Intermittent wiping with rain sensor: due to
optical influences and the windshield becom-
ing dirty in dry weather conditions, the wind-
shield wipers may be activated inadvertently.
This could then damage the windshield wiper
blades or scratch the windshield.
For this reason, you should always switch off
the windshield wipers in dry weather.
96Windshield wipers
Lights and windshield wipers
Switching on while stationary
This function may be useful if you want to keep
up with the traffic flow, e.g. at the end of a tail-
back.
You can only activate DISTRONIC PLUS if:
Rthe vehicle in front and
Ryour vehicle are stationary
XBriefly pull the cruise control lever towards
you?, or press it up :or down A.
DISTRONIC PLUS is selected.
iDISTRONIC PLUS can only be activated
when the vehicle is stationary and at speeds
below 20 mph (30 km/h) if a vehicle in front
has been detected. Therefore, the
DISTRONIC PLUS distance display in the
instrument cluster should be activated
(
Ypage 178).
XKeep the cruise control lever pressed up :or
down Auntil the desired speed is set.
iYou can use the cruise control lever to set
the stored speed and the control on the cruise
control lever to set the specified minimum
distance (
Ypage 152).
Activating at the current speed/last
stored speed
GWARNING
If you call up the stored speed and it differs
from the current speed, the vehicle acceler-
ates or decelerates. If you do not know the
stored speed, the vehicle could accelerate or brake unexpectedly. There is a risk of an acci-
dent.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If you
do not know the stored speed, store the
desired speed again.
XBriefly pull the cruise control lever towards
you ?.
XRemove your foot from the accelerator pedal.
DISTRONIC PLUS is activated. The first time it
is activated, the current speed is stored. Oth-
erwise, it sets the vehicle cruise speed to the
previously stored value.
Driving with DISTRONIC PLUS
Pulling away and driving
XIf the vehicle in front pulls away: remove
your foot from the brake pedal.
XBriefly pull the cruise control lever towards
you ?, or press it up :or down A.
or
XAccelerate briefly.
Your vehicle pulls away and adapts its speed
to that of the vehicle in front.
If there is no vehicle in front, DISTRONIC PLUS
operates in the same way as cruise control.
If DISTRONIC PLUS detects that the vehicle in
front has slowed down, it brakes your vehicle. In
this way, the distance you have selected is main-
tained.
If DISTRONIC PLUS detects that the vehicle in
front is driving faster, it accelerates your vehicle,
but only up to the speed you have stored.
If you depress the brake, DISTRONIC PLUS is
deactivated unless your vehicle is stationary.
Changing lanes
If you change to the passing lane, DISTRONIC
PLUS supports you when:
Ryou are driving faster than 40 mph (60 km/h)
RDISTRONIC PLUS is maintaining the distance
to a vehicle in front
Ryou switch on the appropriate turn signal
RDISTRONIC 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.
150Driving systems
Driving and parking
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 care-
fully, 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:
Rthere is dirt on the sensors or anything else
covering the sensors
Rvisibility is poor, e.g. due to fog, heavy rain or
snow
Rthere is a narrow vehicle traveling in front, e.g.
a motorcycle or bicycle
Rthe road has very wide lanes
Rthe road has narrow lanes
Ryou are not driving in the middle of the lane
Rthere are barriers or other road boundaries
iUSA 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. Removing, tampering with, or
altering the device will void any warranties,
and is not permitted by the FCC. Do not tam-
per 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 approx-
imately 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 lanes, you will also receive a visual 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 driv-
ing 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:
Rwarnings may be issued in error when driving
close to crash barriers or similar solid lane
borders.
Rthe warning is canceled when driving for an
extended period next to long vehicles, such as
trucks.
The two sensors for Blind Spot Assist are inte-
grated into the sides of the rear bumper. Make
sure that the bumper is free of dirt, ice or slush
in the vicinity of the sensors. The radar sensors
must not be covered, for example by rear bicycle
racks or overhanging loads. Following a severe
impact or in the event of damage to the bump-
ers, have the function of the radar sensors
checked at a qualified specialist workshop.
Blind Spot Assist may otherwise not work prop-
erly.
Driving systems155
Driving an d parking
Z
Indicator and warning display
GWARNING
Blind Spot Assist does no treac tto :
Rvehicles overtake nto oclosely on th eside ,
placing them in th eblin dspo tarea
Rvehicles bein govertake nat aspee ddiffer -
ence of mor ethan 7. 5mph (12 km/h)
Rvehicles whic happroac hwit h a larg espee d
differential and overtake your vehicl e
As aresult ,Blind Spot Assist may no tgiv e
warning sin suc hsituations. Ther eis aris kof
an accident.
Always observ eth etraffic condition scare-
fully, and maintai n asafelateral distance.
:Yello windicator lamp/red warning lamp
When Blind Spot Assist is activated, indicator
lamp :in th eexterio rmirror slights 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 :on the cor-
responding side lights up red. This warning
occurs when a vehicle enters the blind spot
monitoring range from behind or from the side.
When you overtake a vehicle, the warning only
occurs as long as 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 ambi- ent light.
Collision warning
:Yellow indicator lamp/red warning lamp
If a vehicle is detected in the monitoring range of
Blind Spot Assist and you switch on the corre-
sponding turn signal, a double warning tone
sounds. Red warning lamp :flashes. If the turn
signal remains on, vehicles detected are indica- ted by the flashing of red warning lamp :.
There are no further warning tones.
Switching on Blind Spot Assist
:Yellow indicator lamp/red warning lamp
XMake sure that Blind Spot Assist is activated
in the on-board computer (Ypage 178).
XTurn the SmartKey to position 2in the ignition
lock (Ypage 112).
Warning lamps :in the exterior mirrors light
up red for approximately 1.5 seconds and
then turn yellow.
156Driving systems
Driving and parking
Deactivating delayed switch-off of the exterior
lighting temporarily:
XBefore leaving the vehicle, turn the SmartKey
to position0(Ypage 112 )in the ignition lock.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 112).
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the engine.
If you have activated the Surround Lighting
function and the light switch is set to Ã, the
following functions are activated when it is dark:
Rsurround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the SmartKey. If you start the engine, the
surround lighting is switched off and auto-
matic headlamp mode is activated
(
Ypage 85).
Rexterior lighting delayed switch-off: the
exterior lighting remains lit for 60 seconds
after the engine is switched off. If you close all
the doors and the trunk lid, the exterior light- ing goes off after 15 seconds.
iDepending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the follow-
ing light up:
RParking lamps
RLow-beam headlamps
RDaytime running lamps
RSide marker lamps
RSurround lighting in the exterior mirrors
Activating/deactivating the interior light-
ing delayed switch-off
If you activate the Interior Lighting Delayfunction, the interior lighting remains on for
20 seconds after you remove the SmartKey from
the ignition lock.
XPress the=or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Lightssubmenu.
XPress ato confirm.
XPress :or9 to select the InteriorLighting Delayfunction.
When the Interior Lighting Delayfunc-
tion is activated, the vehicle interior is dis-
played in red in the multifunction display.
XPress the abutton to save the setting.
Vehicle
Activating/deactivating the automatic
door locking mechanism
If you activate the AutomaticDoorLockfunc-
tion, the vehicle is centrally locked above a
speed of approximately 9 mph (15 km/h).
XPress the =or; button on the steering
wheel to select the Sett.menu.
XPress the:or9 button to select the
Vehiclesubmenu.
XPress ato confirm.
XPress the :or9 button to select the
Automatic Door Lockfunction.
When the Automatic Door Lockfunction is
activated, the vehicle doors are displayed in
red in the multifunction display.
XPress the abutton to save the setting.
For further information on the automatic locking
feature, see (
Ypage 66).
Activating/deactivating the acoustic
locking verification signal
If you switch on the AcousticLockfunction, an
acoustic signal sounds when you lock the vehi-
cle.
XPress the =or; button on the steering
wheel to select the Sett.menu.
XPress:or9 to select the Vehiclesubmenu.
XPressato confirm.
XPress the :or9 button to select the
Acoustic Lockfunction.
If the Acoustic Lockfunction is activated,
the & symbol in the multifunction display
lights up red.
XPress the abutton to save the setting.
180Menus and submenus
On-board computer and displays
Display messagesPossible causes/consequences andMSolutions
FrontPassengerAir‐bag Disabled SeeOperator' sManual
ABabySmart ™compatible child restrain tsystem is installed on th e
front-passenger seat .
The 45indicator lamp also lights up.
The front-passenger air bag is therefore disabled.
Further information on BabySmart™ (
Ypage 50).
FrontPassengerAir‐bag Enabled SeeOperator's Manual
The 45indicator lamp does not remain lit if a special Baby-
Smart™-compatible child restraint system has been installed on the
front-passenger seat.
The BabySmart™ system is malfunctioning.
GWARNING
The front-passenger front air bag can be triggered unintentionally in
the event of an accident.
There is a risk of an accident.
XMake sure there is nothing between the seat cushion and the child
seat.
XCheck for correct installation of the child restraint system.
XIf the 45indicator lamps do not light up, have the Baby-
Smart™ system checked as soon as possible at a qualified special-
ist workshop.
Do not transport a child on the front-passenger seat until the air bag
deactivation system has been repaired.
Lights
i
Display messages about LEDs:
This display message will only appear if all LEDs have failed.
Display messagesPossible causes/consequences and MSolutions
b
CheckLeftLowBeamorCheck Right LowBeam
The left or right-hand low-beam headlamp is defective.
XVisit a qualified specialist workshop.
b
Check Trailer LeftTail LamporCheckTrailer Right TailLamp
The left or right-hand trailer tail lamp is faulty.
XCheck whether you are permitted to replace the bulb yourself.
or
XVisit a qualified specialist workshop.
b
Check Trailer LeftTurn Signalor CheckTrailer Right TurnSignal
The left or right-hand trailer turn signal lamp is defective.
XCheck whether you are permitted to replace the bulb yourself.
or
XVisit a qualified specialist workshop.
Display messages189
On-board computer and displays
Z