2015 MERCEDES-BENZ M-Class Blind spot

rear sensors must not be covered, e.g. 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. Active Blind Spot Assist may oth-
erwise no longer work properly.
Monitoring area G
WARNING
Active Blind Spot Assist does not detect all
traffic situations and road users. There is a
risk of an accident.
Always make sure that there is sufficient dis-
tance on the side for other traffic or obstacles. Active Blind Spot Assist monitors the area up
to 10 ft (3.0 m) behind your vehicle and
directly next to your vehicle, as shown in the
diagram. For this purpose, Active Blind Spot
Assist uses radar sensors in the rear bumper.
In particular, the detection of obstacles can
be impaired if:
R there is dirt on the sensors or anything else
covering the sensors
R there is poor visibility, e.g. due to fog, heavy
rain, snow or spray
Vehicles in the monitoring range are then not indicated. Active Blind Spot Assist may not detect nar-
row vehicles, such as motorcycles or bicy-
cles, or may only detect them too late.
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 there are vehicles at the inner edge
of your lane.
Due to the nature of the system:
R warnings may be issued in error when driv-
ing close to crash barriers or similar solid
lane borders.
R warnings may be interrupted when driving
alongside particularly long vehicles, e.g.
trucks, for a prolonged time.
Indicator and warning display 0043
Yellow indicator lamp/red warning lamp
Active Blind Spot Assist is not active at
speeds below approximately 20 mph
(30 km/h). Vehicles in the monitoring range
are then not indicated.
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
Active Blind Spot Assist is operational.
If a vehicle is detected within the blind spot
monitoring range at speeds above 20 mph
(30 km/h), warning lamp 0043on the corre-
sponding side lights up red. This warning is
always emitted when a vehicle enters the
blind spot monitoring range from behind or 242
Driving systemsDriving and parking

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, Active Blind
Spot Assist is no longer active.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light.
Visual and acoustic collision warning
If you switch on the turn signals to change
lanes and a vehicle is detected in the side
monitoring range, you receive a visual and
acoustic collision warning. You then hear a
double warning tone and red warning lamp 0043
flashes. If the turn signal remains on, detec-
ted vehicles are indicated by the flashing of
red warning lamp 0043. There are no further
warning tones.
Course-correcting brake application
If Active Blind Spot Assist detects a risk of a
lateral collision in the monitoring range, a
course-correcting brake application is carried
out. This is meant to assist you in avoiding a
collision. G
WARNING
A course-correcting brake application cannot always prevent a collision. There is a risk of an
accident.
Always steer, brake or accelerate yourself,
especially if Active Blind Spot Assist warns
you or makes a course-correcting brake appli-
cation. Always maintain a safe distance at the sides. If a course-correcting brake application
occurs, red warning lamp
0043flashes in the
exterior mirror and a dual warning tone
sounds. In addition, display 0044underlining
the danger of a side collision appears in the
multifunction display.
In very rare cases, the system may make an
inappropriate brake application. A course-
correcting brake application may be interrup-
ted at any time if you steer slightly in the
opposite direction or accelerate.
The course-correcting brake application is
available in the speed range between 20 mph (30 km/h) and 120 mph (200 km/h).
Either no braking application, or a course-
correcting brake application adapted to the
driving situation occurs if:
R there are vehicles or obstacles, e.g. crash
barriers, located on both sides of your vehi-
cle.
R a vehicle approaches you too closely at the
side.
R you have adopted a sporty driving style with
high cornering speeds.
R you clearly brake or accelerate.
R a driving safety system intervenes, e.g.
ESP ®
or PRE-SAFE ®
Brake.
R ESP ®
is switched off.
R the off-road program is activated (vehicles
without the ON&OFFROAD package).
R off-road program 1 or 2 is activated (vehi-
cles with the ON&OFFROAD package). Driving systems
243Driving and parking Z

R
the LOW RANGE off-road gear is activated
(vehicles with the ON&OFFROAD package).
R a loss of tire pressure or a defective tire is
detected.
Switching on Active Blind Spot Assist X
Make sure that the radar sensor system
(Y page 279) and Active Blind Spot Assist
(Y page 276 )are activated in the on-board
computer.
X Turn the SmartKey to position 2in the igni-
tion lock.
Warning lamps 0043in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow.
Towing a trailer
When you attach a trailer, make sure you have correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. Active Blind Spot Assist isthen deactivated. The indicator lamp lights up
yellow in the exterior mirrors and the Active
Active
Blind Blind Spot
SpotAssist
Assist Currently
Currently Unavail‐
Unavail‐
able See Operator's Manual
able See Operator's Manual message
appears in the multifunction display. Active Lane Keeping Assist General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of camera 0043
at the top of the windshield. Active Lane
Keeping Assist detects lane markings on the
road and warns you before you leave your
lane unintentionally. If you do not react to the warning, a lane-correcting application of the
brakes can bring the vehicle back into the
original lane.
If you select km kmin the Display Unit
Display Unit
Speed-/Odometer:
Speed-/Odometer: function on the on-board
computer (Y page 277), Active Lane Keeping
Assist is activated starting at a speed of
60 km/h. If the miles milesdisplay unit is selected,
the assistance range begins at 40 mph.
Important safety notes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of accident nor override the laws of phys- ics. Lane Keeping Assist cannot take into
account the road, traffic and weather condi-
tions. Lane Keeping Assist is merely an aid.
You are responsible for the distance to the
vehicle in front, for vehicle speed, for braking in good time and for staying in your lane.
Active Lane Keeping Assist cannot continu-
ously keep your vehicle in its lane. G
WARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings. 244
Driving systemsDriving and parking

If a lane-correcting brake application occurs,
display 0043appears in the multifunction dis-
play.
If you leave your lane, under certain circum-
stances the vehicle will brake briefly on one
side. This is meant to assist you in bringing
the vehicle back to the original lane.
This function is available in the range between
40 mph and 120 mph (60 km/h and
200 km/h).
A lane-correcting brake application can only
be made after driving over a solid, recogniz-
able lane marking. Before this, a warning
must be given by means of intermittent vibra-
tion in the steering wheel. In addition, a lane
with lane markings on both sides must be
recognized. The brake application also
slightly reduces vehicle speed.
i A further lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane.
No lane-correcting brake application occurs
if:
R you clearly and actively steer, brake or
accelerate.
R you cut the corner on a sharp bend.
R you have switched on the turn signal.
R a driving safety system intervenes, e.g.
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R you have adopted a sporty driving style with
high cornering speeds or high rates of
acceleration.
R ESP ®
is switched off. R
the transmission is not in position D.
R on vehicles with a trailer tow hitch, the
electrical connection to the trailer has been
correctly established.
R the off-road program is activated (vehicles
without the ON&OFFROAD package).
R off-road program 1 or 2 is activated (vehi-
cles with the ON&OFFROAD package).
R the LOW RANGE off-road gear is activated
(vehicles with the ON&OFFROAD package).
R a loss of tire pressure or a defective tire has
been detected and displayed.
Active Lane Keeping Assist does not detect
traffic situations or road users. An inappro-
priate brake application may be interrupted at
any time if you:
R steer slightly in the opposite direction
R switch on the turn signal
R clearly brake or accelerate
A lane-correcting brake application is inter-
rupted automatically if:
R a driving safety system intervenes, e.g.
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R lane markings can no longer be recognized.
Switching on Active Lane Keeping Assist
X Switch on Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard
Standard orAdaptive Adaptive (Ypage 276).
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected, the lines in the assistance graphics display(Y page 275) are shown in green. Lane
Keeping Assist is ready for use.
When Standard Standard is selected, no warning
vibration occurs if:
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 ®
.
When Adaptive Adaptive is selected, no warning
vibration occurs if: 246
Driving systemsDriving and parking

When towing a trailer, your vehicle's handling
characteristics will be different in comparison with when driving without a trailer.
The vehicle/trailer combination:
R is heavier
R is restricted in its acceleration and gradi-
ent-climbing capability
R has an increased braking distance
R is affected more by strong crosswinds
R demands more sensitive steering
R has a larger turning radius
This could impair the handling characteris-
tics.
When towing a trailer, always adjust your
speed to the current road and weather con-
ditions. Do not exceed the maximum permis- sible speed for your vehicle/trailer combina-
tion. Notes on towing a trailer
General notes R
Do not exceed the legally prescribed max-
imum speed for vehicle/trailer combina-
tions in the relevant country.
This lowers the risk of an accident.
R Only install an approved trailer coupling on
your vehicle.
Further information on availability and on
installation is available from any authorized
Mercedes-Benz Center.
R The bumpers of your vehicle are not suita-
ble for installing detachable trailer cou-
plings.
R Do not install hired trailer couplings or
other detachable trailer couplings on the
bumpers of your vehicle.
R If you no longer need the ball coupling,
remove it from the ball coupling recess.
This will reduce the risk of damage to the
ball coupling.
i When towing a trailer, set the tire pres-
sure on the rear axle of the towing vehicle for a maximum load; see the tire pressure
table in the fuel filler flap (Y
page 421).
Please note that when towing a trailer, PARK-
TRONIC (Y page 217) and Blind Spot Assist
(Y page 237) are only available with limita-
tions, or not at all.
i On vehicles without level control, the
height of the ball coupling will alter accord-
ing to the load placed on the vehicle. If nec- essary, use a trailer with a height-adjusta-
ble drawbar.
You will find installing dimensions and loads
under "Technical data" (Y page 459).
Driving tips i
Observe the information on ESP ®
trailer
stabilization (Y page 74) and on pulling
away with a trailer (Y page 161).
The maximum permissible speed for vehicle/ trailer combinations depends on the type of
trailer. Before beginning the journey, check
the trailer's documents to see what the max-imum permissible speed is. Observe the
legally prescribed maximum speed in the rel-
evant country.
For certain Mercedes-Benz vehicles, the max- imum permissible rear axle load is increased
when towing a trailer. See "Technical data" to
find out whether this applies to your vehicle
(Y page 460). If you utilize any of the added
maximum rear axle load when towing a trailer, the vehicle/trailer combination may not
exceed a maximum speed of 60 mph
(100 km/h) for reasons concerning the oper-ating permit. This also applies in countries in
which the permissible maximum speed for
vehicle/trailer combinations is above 60 mph
(100 km/h).
When towing a trailer, your vehicle's handling
characteristics will be different in comparison with when driving without a trailer.
Use the left-hand paddle shifter to shift into a
lower gear in good time on long and steep
downhill gradients. Towing a trailer
257Driving and parking Z

Assistance menu
Introduction In the
DriveAssist
DriveAssist menu, you have the fol-
lowing options:
R Displaying the assistance graphic
(Y page 275)
R Activating/deactivating the distance warn-
ing function (Y page 275)
R Activating/deactivating PRE-SAFE ®
Brake
(Y page 276)
R Activating/deactivating ATTENTION
ASSIST (Y page 276)
R Activating/deactivating Blind Spot Assist
or Active Blind Spot Assist (Y page 276)
R Activating/deactivating Lane Keeping
Assist or Active Lane Keeping Assist
(Y page 276)
Displaying the assistance graphic X
Press the 0059or0065 button on the steer-
ing wheel to select the DriveAssist DriveAssistmenu.
X Press 0063or0064 to select Assistance Assistance
Graphic
Graphic.
X Press the 0076button.
The multifunction display shows the DIS-
TRONIC PLUS distance display in the assis- tance graphic.
The assistance graphic displays the status of and information from the following driving
systems or driving safety systems:
R ATTENTION ASSIST (Y page 233)
R DISTRONIC PLUS (Y page 205)
R Lane Keeping Assist (Y page 239) or Active
Lane Keeping Assist (Y page 244)
R Distance warning function (Y page 70)
R PRE-SAFE ®
Brake (Y page 75)
R DSR (Y page 250)
R Off-road program (vehicles with the
ON&OFFROAD package) (Y page 251)
Activating/deactivating the distance
warning function X
Press the 0059or0065 button on the steer-
ing wheel to select the DriveAssist DriveAssistmenu.
X Press 0063or0064 to select Distance
Distance
Warning
Warning.
X Press the 0076button.
The current selection is displayed.
X To activate/deactivate: press the0076
button again.
When the distance warning function is
deactivated, the assistance graphic shows
the 00D4 symbol in the multifunction dis-
play.
Further information on the distance warning
function (Y page 70). Menus and sub
menus
275On-board computer and displays Z

Activating/deactivating PRE-SAFE
®
Brake PRE
‑SAFE ®
Brake is only available in vehicles
with DISTRONIC PLUS.
X Press 0059or0065 on the steering wheel
to select the DriveAssist
DriveAssist menu.
X Press the 0063or0064 button to select
PRE-SAFE Brake
PRE-SAFE Brake.
X Press the 0076button.
The current selection is displayed.
X To activate/deactivate: press the0076
button again.
When PRE-SAFE ®
Brake is deactivated, the
assistance graphic shows the 00D4symbol
in the multifunction display.
For more information on PRE‑SAFE ®
Brake,
see (Y page 75).
Activating/deactivating ATTENTION
ASSIST X
Press the 0059or0065 button on the steer-
ing wheel to select the DriveAssist DriveAssistmenu.
X Press the 0063or0064 button to select
ATTENTION ASSIST
ATTENTION ASSIST .
X Press the 0076button.
The current selection is displayed.
X To activate/deactivate: press the0076
button again.
When ATTENTION ASSIST is deactivated,
the 00D7 symbol appears in the multifunc-
tion display in the assistance graphics dis-
play.
For further information about ATTENTION
ASSIST, see (Y page 233).
Activating/deactivating Blind Spot
Assist X
Press 0059or0065 on the steering wheel
to select the DriveAssist
DriveAssist menu.
X Press the 0063or0064 button to select
Blind Spot Assist
Blind Spot Assist . X
Press the 0076button.
The current selection is displayed.
X To activate/deactivate: press the0076
button again.
For further information about Active Blind
Spot Assist, see (Y page 241).
Activating/deactivating Lane Keeping
Assist X
Press 0059or0065 on the steering wheel
to select the DriveAssist DriveAssist menu.
X Press 0063or0064 to select Lane Keep‐
Lane Keep‐
ing Assist
ing Assist .
X Press the 0076button.
The current selection is displayed.
X Press 0076to confirm.
X Press the 0064or0063 button to set Off
Off,
Standard
Standard orAdaptive
Adaptive.
When Lane Keeping Assist or Active Lane
Keeping Assist is activated, the multifunc-
tion display shows the lane markings as
bright lines in the assistance graphic.
X Press the 0076button to save the setting.
For further information about Lane Keeping
Assist, see (Y page 239).
For further information about Active Lane
Keeping Assist, see (Y page 244). Maintenance menu
In the
Serv Servmenu, you have the following
options:
R Calling up display messages in message
memory (Y page 284)
R Restarting the tire pressure loss warning
system (Y page 408) 276
Menus and sub
menusOn-board computer and displays

R
Parking lamps
R Daytime running lamps
R Side marker lamps
R Surround lighting in the exterior mirrors
Activating/deactivating the interior light-
ing delayed switch-off
If you activate the Interior Lighting
Interior Lighting
Delay Delay function, the interior lighting remains
on for 20 seconds after you remove the
SmartKey from the ignition lock.
X Press the 0059or0065 button on the steer-
ing wheel to select the Sett
Sett menu.
X Press the 0064or0063 button to select the
Light Light submenu.
X Press 0076to confirm.
X Press the 0064or0063 button to select the
Interior Lighting Delay
Interior Lighting Delay function.
If the Interior
Interior Lighting
LightingDelay
Delayfunction
has been switched on, the vehicle interior is
displayed in orange in the multifunction
display.
X Press the 0076button to save the setting.
Vehicle submenu Activating/deactivating the automatic
door locking mechanism
If you activate the Automatic Door Lock Automatic Door Lock
function, the vehicle is centrally locked above
a speed of approximately 9 mph (15 km/h).
X Press the 0059or0065 button on the steer-
ing wheel to select the Sett
Settmenu.
X Press the 0064or0063 button to select the
Vehicle
Vehicle submenu.
X Press 0076to confirm.
X Press the 0064or0063 button to select the
Automatic Door Lock
Automatic Door Lock function.
When the Automatic
Automatic Door
DoorLock
Lockfunction
is activated, the vehicle doors are displayed
in orange in the multifunction display.
X Press the 0076button to save the setting.
For further information on the automatic lock- ing feature, see (Y page 88). Activating/deactivating the acoustic
locking verification signal
If you switch on the
Acoustic AcousticLock
Lockfunction,
an acoustic signal sounds when you lock the
vehicle.
X Press the 0059or0065 button on the steer-
ing wheel to select the Sett.
Sett. menu.
X Press 0064or0063 to select the Vehicle Vehicle
submenu.
X Press 0076to confirm.
X Press the 0064or0063 button to select the
Acoustic Lock
Acoustic Lock function.
If the Acoustic
Acoustic Lock
Lockfunction is activated,
the 0037 symbol in the multifunction dis-
play lights up orange.
X Press the 0076button to save the setting.
Activating/deactivating the radar sensor
system
X Press the 0059or0065 button on the steer-
ing wheel to select the Sett.
Sett. menu.
X Press 0064or0063 to select the Vehicle Vehicle
submenu.
X Press 0076to confirm.
X Press the 0063or0064 button to select
Radar Sensor (See Oper. Manual):
Radar Sensor (See Oper. Manual):.
You will see the selected setting: Enabled
Enabled
or Disabled Disabled.
X Press the 0076button to save the setting.
The following systems are switched off when the radar sensor system is deactivated:
R DISTRONIC PLUS (Y page 198)
R BAS PLUS (Y page 69)
R PRE-SAFE ®
Brake (Y page 75)
R Blind Spot Assist (Y page 237)
R Active Blind Spot Assist (Y page 241)
Convenience submenu Activating/deactivating the EASY-
ENTRY/EXIT feature
G
WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle Menus and submenus
279On-board computer and displays
Z