Brake force distribution, elec-
tronicsee EBD (electronic brake force
distribution)
Brake lamps
Replacing bulbs ............................... 89
Brake lamps (Chassis Cab)
Replacing bulbs ............................... 90
Brake linings
Display message ............................ 182
Indicator lamp ................................ 198
Brake pads/linings
New ............................................... 136
Brake system
Malfunction .................................... 182
Warning lamp ................................. 195
Brakes
ABS .................................................. 53
Adaptive Brake Assist .................... 143
Applying the parking brake ............ 131
BAS .................................................. 54
Brake fluid (notes) ......................... 283
Checking brake fluid level .............. 223
Display messages .......................... 182
EBD .................................................. 54
Important safety notes .................. 135
Maintenance .................................. 195
New brake pads/linings ................ 136
Parking brake (notes) ..................... 136
Riding tips ...................................... 135
Breakdown
Fire extinguisher ............................ 242
First-aid kit .................................... 241
Jump-starting ................................. 242
Reflective safety jacket .................. 241
Vehicle tool kit ............................... 240
Warning lamp ................................. 241
Warning triangle ............................ 241
see Flat tire
see Towing away
Bulb
see Changing bulbs
Bulb failure indicator .......................... 79C
California
Important notice for retail cus-
tomers and lessees .......................... 22
Car
see Vehicle
Care
Access step in the bumper ............ 237
Car wash ........................................ 233
Display ........................................... 237
Exterior lights ................................ 236
Interior ........................................... 237
Notes ............................................. 233
Paint .............................................. 235
Plastic trim .................................... 238
Power washer ................................ 234
Rear view camera .......................... 236
Roof lining ...................................... 238
Seat belt ........................................ 238
Seat cover ..................................... 238
Selector lever ................................ 238
Sensors ......................................... 236
Sliding door ................................... 237
Steering wheel ............................... 238
Step (electrical) ............................. 237
Trim pieces .................................... 238
Washing by hand ........................... 234
Washing the engine ....................... 234
Wheels ........................................... 235
Windows ........................................ 235
Wiper blades .................................. 235
Cargo compartment
Activating/deactivating ventila-
tion ................................................ 117
Cargo compartment floor ................... 28
Cargo tie-down points and tie
downs
Important safety notes .................. 214
Cargo tie-down rings
Installing ........................................ 216
Permissible tensile load ................. 285
Carrier system
Ladder rack ................................... 217
CD player/CD changer ...................... 168
Cell phone
see Mobile phone
Center console overview .................... 35
Index5
Notes on operating the vehicle ........ 25
Qualified specialist workshop .......... 26
Registering your vehicle ................... 27
Operating system
see On-board computer
Operator's Manual
General notes .................................. 22
Vehicle equipment ........................... 22
Outline lamp
Replacing bulbs ............................... 91
Outside temperature display ........... 162
Overhead control panel ...................... 36
Overrevving range .............................1 62
Overrun cutoff ................................... 133
P
Paintwork (cleaning instructions) ... 235
Paper holder ...................................... 207
Parking ............................................... 130
Important safety notes .................. 130
Parking brake ................................ 131
Wheel chock .................................. 132
see PARKTRONIC
Parking aid
see PARKTRONIC
Parking assistance
see PARKTRONIC
Parking brake
Display message ............................ 184
Notes/function .............................. 131
Parking lamps
Replacing bulbs ............................... 87
PARKTRONIC
Deactivating/activating ................. 153
Driving system ............................... 151
Function/notes .............................1 51
Important safety notes .................. 151
Problem (malfunction) ................... 154
Range of the sensors ..................... 151
Roll-back warning .......................... 153
Trailer towing ................................. 153
Warning display ............................. 152
Partition sliding door
Important safety notes .................... 70
Opening/closing .............................. 70 Passenger compartment air-condi-
tioning system
see Climate control
Passenger compartment heating
see Climate control
Perimeter lamp
Replacing bulbs ............................... 90
Pets in the vehicle ............................... 52
Plastic trim (cleaning instruc-
tions) .................................................. 238
Power assistance for the steering
Display message ............................ 192
Warning lamp ................................. 203
Power supply
Battery isolating switch ................. 118
Switching off .................................. 119
Switching on .................................. 119
Power take-off
Engine speed setting ..................... 154
Power washers .................................. 234
Power windows
see Side windows
Preparing for a journey
Checks in the vehicle ..................... 120
Visual check of the vehicle exte-
rior ................................................. 120
Protection of the envi
ronment
General notes .................................. 24
Pulling away ...................................... 121
Q
QR code
Rescue card ..................................... 29
Qualified specialist workshop ........... 26
R
Radiator cover..................................... 28
Radio
Changing stations (vehicles with
steering wheel buttons) ................. 167
see separate operating instructions
Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 26
14Index
If you approach an obstacle and the distance
warning function detects a risk of a collision, the
system will alert you both visually and acousti-
cally.
In particular, the detection of obstacles can be
impaired in the case of:
Rdirt on the sensors or anything else covering
the sensors
Rsnow or heavy rain
Rinterference from other radar sources
Rthere are strong radar reflections, for exam-
ple in parking garages
Ra narrow vehicle traveling in front, e.g. a
motorbike
Ra vehicle traveling in front on a different line
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensor checked at a qualified specialist
workshop. This also applies to collisions at slow
speeds where there is no visible damage to the
front of the vehicle.
Activating/deactivating the distance
warning function
When you switch on the engine, the distance
warning function switches on after a few sec-
onds.
XTo deactivate: press theæbutton
(Ypage 35).
Vehicles without steering wheel buttons:
the Ä warning lamp in the instrument clus-
ter lights up and the OFF
message flashes. The
message then disappears and the Äindi-
cator lamp remains lit.
Vehicles with steering wheel buttons: the
Ä warning lamp in the instrument cluster
flashes and the Distance
warningsystemdeactivatedmessage appears .The mes-
sage then disappears and the Äwarning
lamp remains lit.
XTo activate: press theæbutton again
(Ypage 35).
Vehicles without steering wheel buttons:
the Ä warning lamp in the instrument clus-
ter lights up and the on
message flashes. The
message then disappears and the Äindi-
cator lamp goes out.
Vehicles with steering wheel buttons: the
Ä warning lamp in the instrument cluster
flashes and the Distance
warningsystemactivatedmessage appears in the multi- function display. The message then disap-
pears and the indicator lamp
Ägoes out.
Adaptive Brake Assist
iObserve the "Important safety notes" sec-
tion for driving safety systems (Ypage 52).
GWARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist can:
Rintervene unnecessarily
Rnot intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Terminate the
intervention in a non-critical driving situation.
GWARNING
Adaptive Brake Assist does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rto stationary obstacles
Rwhen cornering
As a result, the Adaptive Brake Assist may not
intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake.
Adaptive Brake Assist aids you when braking
during hazardous situations at speeds above
20 mph (30 km/h). With the help of Adaptive
Brake Assist, the distance warning signal can
detect obstacles that are in the path of your
vehicle for an extended period of time.
When you approach an obstacle and adaptive
Brake Assist detects that there is a risk of a col- lision, adaptive Brake Assist calculates the brak-
ing force necessary to avoid a collision. Should
you apply the brakes forcefully, adaptive Brake
Assist will automatically increase the braking
force to the calculated level.
Driving systems143
Driving and parking
Z
XKeep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes function as usual again if:
Ryou release the brake pedal
Rthere is no longer any danger of a collision
Rno obstacle is detected in front of your vehicle
Adaptive Brake Assist is then deactivated.
Up to the maximum vehicle speed, adaptive
Brake Assist can react to moving obstacles that
have already been recognized as such at least
once over the period of observation. Adaptive
Brake Assist does not react to stationary obsta-
cles.
In particular, the detection of obstacles can be
impaired if:
Rdirt on the sensors or anything else covering
the sensors
Rsnow or heavy rain
Rinterference from other radar sources
Rthere are strong radar reflections, for exam-
ple in parking garages
Ra narrow vehicle traveling in front, e.g. a
motorbike
Ra vehicle traveling in front on a different line
If adaptive Brake Assist is not available due to a
malfunction in the radar sensor system, the full
brake boosting effect with the help of BAS
remains available.
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensor checked at a qualified specialist
workshop. This also applies to collisions at slow
speeds where there is no visible damage to the
front of the vehicle.
Lane Tracking package
Blind Spot Assist
General notes
Blind Spot Assist uses a radar sensor system to
monitor the areas on both sides of your vehicle.
It supports you from speeds 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 and
behind the protective strips of the B-pillars.
Important safety notes
GWARNING
Blind Spot Assist does not react to:
Rvehicles overtaken too closely on the side,
placing them in the blind spot area
Rvehicles which approach with a large speed
differential and overtake your vehicle
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.
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. 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.
Monitoring range of the sensors
In particular, the detection of obstacles can be
impaired in the case of:
Rdirt on the sensors or anything else covering
the sensors
Rpoor visibility, e.g. due to fog, heavy rain or
snow
Rnarrow and short vehicles, e.g. motorcycles
or bicycles
Rvery wide lanes
Rnarrow lanes
Rvehicles not driving in the middle of their lane
Rbarriers or other road boundaries
Vehicles in the monitoring range are then not
indicated.
144Driving systems
Driving and parking
Blind Spot Assist monitors the area approx-
imately 10 ft (3.0m) behind your vehicle and
approximately 1.6 ft (0.5 m)to 11.5 ft (3.5 m)
ea ch side of it. For this purpose, Blind Spot
Assist uses radar sensors in the rear bumper
and behind the protective strips of the B-pillars.
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:
Ra clear warning situation may not occur. The
yellow indicator lamp on the relevant side of
the vehicle will then light up.
Rwarnings may be issued in error when driving
close to crash barriers or similar solid lane
borders.
Rwarnings may be interrupted when driving
alongside particularly long vehicles, for exam-
ple trucks, for a prolonged time.
The four sensors of Blind Spot Assist are inte-
grated into the rear bumper and behind the pro-
tective strips of the B-pillars. Make sure that the
bumper and protective stripping are free of dirt,
ice or slush in the vicinity of the sensors. The
radar sensors must not be covered, for example
by cycle racks or overhanging loads. Have the function of the radar sensors checked
at a qualified specialist workshop:
Rafter a severe impact
Rafter damage to the bumper
Rafter damage to the protective strips of the B-
pillars
Blind Spot Assist may otherwise not work prop-
erly.
Indicator and warning display
Blind Spot Assist is not active at speeds below
approximately 20 mph (30 km/h). Vehicles in
the monitoring range are then not indicated.
:Yellow indicator lamp/red warning lamp
If yellow indicator lamp :lights up:
Ryou are driving at less than 20 mph (30 km/h)
RBlind Spot Assist is deactivated
RBlind Spot Assist is malfunctioning
Rthere is no clear warning, depending on the
situation
Blind Spot Assist is active from a speed of
20 mph (30 km/h). If a vehicle is detected in the
blind spot monitoring range, red warning
lamp :on the corresponding side lights up.
This warning occurs when a vehicle enters the
blind spot monitoring range from behind or from
the side. When you overtake a vehicle, the warn-
ing only occurs if the difference in speed is less
than 14 mph (22 km/h).
Yellow indicator lamp :goes out if reverse gear
is engaged. Blind Spot Assist is then deactiva-
ted.
The brightness of the indicator/warning lamps
is adjusted automatically according to the ambi- ent light.
Driving systems145
Driving and parking
Z
Clean the sensors regularly, taking care not to
scratch or damage them (Ypage 236).
Front sensors
CenterApprox. 39 in
(100 cm)
CornersApprox. 26 in(65 cm)
Rear sensors
CenterApprox. 71 in
(180 cm)
CornersApprox. 39 in
(100 cm)
Mini mum distance
CenterApprox. 12 in(30 cm)
Front corner sensorsApprox. 10 in(25 cm)
Rear corner sensorsApprox. 12 in(30 cm)
Ifan obstacle iswithin th isrange, all segments
of the warning displays light up and you hear a
warning tone. Ifthe distance between the veh i-
cle and the obstacle falls below the minimum
range, it ispossible that thedistance may no
longer be displ ayed.
Warning displays
Warning display, fron tarea
Warning display for th eleft-hand rear area in th e
left-hand exterio rmirror
:
Warning segments for the left front area
;Warning segments for the right front area
=Operational readiness symbol for the front
area
?Warning display segments
AOperational readiness symbol for the rear
area
The warning displays show the distance
between the sensor and the obstacle.
The warning display is divided into five yellow
and two red segments for each side of the vehi- cle. PARKTRONIC is operational if yellow indi-
cator segments =and Aare lit.
There is a malfunction ifonly the red segments
of the warning display light up .
The position of the gear lever determines
whether the front and/or rear area is monitored.
152Driving systems
Driving and parking
Problems with PARKTRONIC
ProblemPossible causes/consequences andMSolutions
Only the red segments in
the PARKTRONIC warn-
ing displays are lit.
A warning tone also
sounds for approx-
imately 2 seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds.
The indicator lamp of the
f button lights up
and the red segments in
the PARKTRONIC warn-
ing display go out.PARKTRONIC has malfunctioned and has switched itself off.
XIf problems persist, have PARKTRONIC checked at a qualified spe- cialist workshop.
The PARKTRONIC warn-
ing displays implausible
distances.
For example, all the seg-
ments may be lit even
though there is no obsta-
cle present.The PARKTRONIC sensors are dirty or iced up.
XClean the PARKTRONIC sensors (Ypage 236).
XTurn the key to position 2again in the ignition lock.
The license plate or other parts attached near the sensors may not be
secured correctly.
XCheck the license plate and attachment parts near the sensors for
correct seating.
An external radio or ultrasonic source may be causing interference.
XCheck PARKTRONIC functions in a different location.
Rear view camera
Important safety notes
The rear view camera is only an aid. It cannot
replace your own awareness of the immediate
surroundings. You are responsible for safe
maneuvering, parking and pulling away. When
maneuvering, parking and pulling away, make
sure that there are no persons, animals or
objects in the maneuvering area.
The rear view camera is a visual parking aid.
Information on operation can be found in the
separate Audio 15 supplement.
The camera is in the middle of the roof above the
high-mounted brake lamp (
Ypage 236).
You can find information on cleaning the camera
in the "Maintenance and care" section
(
Ypage 236).
Working mode
ADR (working speed governor)
General notes
When activated, ADR automatically increases
the engine speed to a preset speed or a speed
you have set.
iAfter a cold start, the idling speed of the
engine is increased automatically. If the pre-
set working speed is lower than the increased idling speed, the working speed is only
reached once the engine has completed the
warm-up phase.
It is only possible to activate ADR with the
vehicle stationary and the parking brake
applied.
The selector lever of the automatic transmis-
sion must be in position P.
154Working mode
Driving and parking