
PRE-SAFE®(anticipatory occupant
protection)
Display message ............................2 37
Operation ......................................... 58
PRE-SAFE
®PLUS (anticipatory
occupant protection PLUS)
Operation ......................................... 59
Program
see Drive programs
Protection against theft
ATA (Anti-Theft Alarm system) ......... 76
Immobilizer ...................................... 76
Protection of the environment
General notes .................................. 28
Pulling away
Automatic transmission ................. 139
General notes ................................ 139
Hill start assist ............................... 140
Q
QR codeMercedes-Benz Guide App ................. 1
Rescue card ..................................... 33
Qualified specialist workshop ........... 32
Quick access for audio and tele-
phone
Changing the station/music
track .............................................. 273
R
RACE START (Mercedes-AMG vehi-
cles) .................................................... 180
RACE TIMER (on-board computer,
Mercedes-AMG vehicles) .................. 228
Radar sensor system
Display message ............................ 238
Radiator cover ................................... 304
Radiator shutter
see AIRPANEL
Radio
Selecting a station ......................... 218
Radio mode
see also Digital Operator's Man-
ual .................................................. 270 Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 31
Rain closing feature (panorama
roof with power tilt/sliding panel) .... 96
Reading lamp ..................................... 116
Rear compartment
Setting the air vents ...................... 133
Setting the airflow ......................... 128
Setting the temperature ................ 128
Rear fog lamp
Display message ............................ 242
Switching on/off ........................... 114
Rear seat (folding the backrest for-
wards/back) ...................................... 284
Rear seat backrest
Display message ............................ 256
Rear seats
Display message ............................ 256
Rear view camera
"Reverse parking" function ............ 193
Cleaning instructions ..................... 313
Display in the multimedia system .. 192
General notes ................................ 191
Object detection (function/
notes) ............................................ 194
Switching on/off ........................... 191
Wide-angle function ....................... 194
Rear window blind ............................ 291
Rear window defroster
Problem (malfunction) ................... 130
Switching on/off ........................... 130
Rear-view mirror
Anti-glare (manual) ........................ 108
Dipping (automatic) ....................... 109
Recuperation display ........................ 215
Reducing agent
see DEF
Refilling
DEF ................................................ 158
Reflective safety jacket .................... 316
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 367
Refueling
Fuel g
auge ....................................... 37
Important safety notes .................. 155
18Index

GWARNING
Active Brake Assist with cross-traffic function cannot always clearly identify people, partic-
ularly if they are moving. Active Brake Assist
with cross-traffic function cannot intervene in
these cases. There is a risk of an accident.
Always pay particular attention to the traffic
situation and be prepared to brake, especially
if Active Brake Assist with cross-traffic func-
tion alerts you.
In order to maintain the appropriate distance to
the vehicle in front and thus prevent a collision,
you must apply the brakes yourself.
GWARNING
Active Brake Assist with cross-traffic function does not react:
Rto small people, e.g. children
Rto animals
Rto oncoming vehicles
Rwhen cornering
As a result, Active Brake Assist with cross-
traffic function may not warn you or engage in
all critical situations. There is a risk of an acci-
dent.
Always pay careful attention to the traffic sit- uation and be ready to brake.
In the event of snowfall or heavy rain, the rec-
ognition can be impaired.
Recognition by the radar sensor system is also
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is interference by other radar sources
Rthere are strong radar reflections, for exam-
ple in parking garages
Ra narrow vehicle is traveling in front, e.g. a
motorbike
Ra vehicle is traveling in front on a different line
Rvehicles moving quickly into the radar sensor
system detection range Recognition by the camera system is also
impaired in the event of:
Rdirt on the camera or if the camera is covered
Rglare on the camera system, e.g. from the sun
being low in the sky
Rdarkness
Ror if:
-pedestrians move quickly, e.g. into the path
of the vehicle
-the camera system no longer recognizes a
pedestrian as a person due to special cloth- ing or other objects
-a pedestrian is concealed by other objects
-the typical outline of a pedestrian is not
distinguishable from the background
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensors 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.
Following damage to the windshield, have the
configuration and operation of the camera sys-
tem checked at a qualifi ed specia
list workshop.
Function
XTo activate or deactivate:
activate or deac-
tivate Active Brake Assist with cross-traffic
function using the on-board computer
(
Ypage 223).
If Active Brake Assist with cross-traffic func-
tion is deactivated, the æsymbol appears
on the multifunction display.
Starting at a speed of around 4 mph (7 km/h),
this function warns you if you are rapidly
approaching a vehicle in front. An intermittent
warning tone will then sound and the ·dis-
tance warning lamp will light up in the instru-
ment cluster.
XBrake immediately to defuse the situation.
or
XTake evasive action provided it is safe to do
so.
Active Brake Assist with cross-traffic function
can also brake the vehicle automatically under
the following conditions:
Rthe driver and front passenger have their seat
belts fastened
Rthe vehicle speed is between approximately
4 mph (7 km/h) and 124 mph (200 km/h)
74Driving safety systems
Safety

with the curb or other road boundaries. Be par-
ticularly aware of other road users, e.g. cyclists,
that are directly next to your vehicle.
Obstacles such as traffic markers on a con-
struction site that are on the lane or projecting
out into the lane are not detected.
An inappropriate steering intervention, e.g. afterintentionally driving over a lane marking, can be
corrected at any time if you steer slightly in theopposite direction.
DISTRONIC PLUS with Steering Pilot cannot
continuously keep your vehicle in lane. In some
cases, steering intervention is not sufficient to
bring the vehicle back to the lane. In such cases,
you must steer the vehicle yourself to ensure
that it does not leave the lane.
The system may be impaired or may not function
if:
Rthere is poor visibility, e.g. due to insufficient
illumination of the road, or due to snow, rain,
fog or spray
Rthere is glare, e.g. from oncoming traffic, the
sun or reflection from other vehicles (e.g. if
the road surface is wet)
Rthe windshield is dirty, fogged up, damaged or
covered, for instance by a sticker, in the vicin-
ity of the camera
Rthere are no or several unclear lane markings
for one lane, e.g. roadworks
Rthe lane markings are worn away, dark or cov-
ered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too short
and thus the lane markings cannot be detec-
ted
Rthe lane markings change quickly, e.g. lanes
branch off, cross one another or merge
Rthe road is narrow and winding
Rthere are highly variable shade conditions on the roadway
The system is switched to passive and no longer
assists you by performing steering interventions
if:
Ryou actively change lane
Ryou switch on the turn signal
Ryou take your hands off the steering wheel or
do not steer for a prolonged period of time
After you have finished changing lanes, Steering
Pilot is automatically active once more. Steering Pilot cannot provide assistance:
Ron very sharp corners
Rwhen a loss of tire pressure or a defective tire
has been detected and displayed
Pay attention also to the important safety notes
on Distance Pilot DISTRONIC (
Ypage 172).
The steering interventions are carried out with a
limited steering moment. The system requires
the driver to keep his hands on the steering
wheel and to steer himself.
If you do not steer yourself or if you take your
hands off the steering wheel for a prolonged
period of time, the system will first alert you with
a visual warning. A steering wheel symbol
appears in the multifunction display. If you have still not started to steer and have not taken hold
of the steering wheel, a warning tone also
sounds to remind you to take control of the
vehicle after five seconds at the latest. Steering
Pilot is then switched to passive. Distan ce Pilot
D
ISTRONIC remains active.
Activating Steering Pilot
XPress button ;.
Indicator lamp :lights up. The Steering
PilotOnmessage appears on the multifunc-
tion display. Steering Pilot is activated.
178Driving systems
Driving and parking

"Reverse parking" function
Backing up straight into a parking space
without steering input
:White guide line without steering input –
vehicle width including the exterior mirrors
(static)
;Yellow guide lines for vehicle width including
the exterior mirrors – dynamic for current
steering input
=Yellow guide line at a distance of approx-
imately 3 ft (1.0 m) from the rear of the vehi-
cle
?Red guide line at a distance of approximately
12 in (0.30m)from the rear of the vehicle
XMake sure that the rear view camera is
switched on (Ypage 191).
The lane and the guide lines appear.
XWith the help of white guide line :, check
whether the vehicle will fit into the parking
space.
XUsing white guide line :as a guide, carefully
back up until you reach the end position.
Red guide line ?is then at the end of the
parking space. The vehicle is almost parallel
in the parking space.
Reverse perpendicular parking with steer-
ing input
XAfter driving past the parking space, stop the
vehicle safely.
XMake sure that the rear view camera is
switched on (Ypage 191).
The lane and the guide lines appear in the
camera image.
XWhile the vehicle is stationary, turn the steer-
ing wheel in the direction of the parking space
until yellow guide lines ;reach parking
space marking :.
Yellow guide lines ;dynamically adapt to the
current steering input.
XMaintain the steering input and reverse care-
fully.
XStop the vehicle when it is almost exactly in
front of the parking space.
Driving systems193
Driving and parking
Z

:Parking space markings
=White guide lines – for current steering input
White guide lines =should be as close to par-
allel with parking space markings :as possi-
ble.
XTurn the steering wheel to the center position while the vehicle is stationary.
?Red guide line at a distance of approximately
12 in (0.30 m) from the rear of the vehicle
AWhite guide lines – no steering input
BEnd of parking space
XBack up carefully until you have reached the
final position.
The red guide line ?is then at the end of the
parking space B. The vehicle is almost par-
allel in the parking space.
"Wide-angle" function
:Symbol for the wide-angle view function
;Your vehicle
=Warning displays for Parking Assist
PARKTRONIC
You can also use the rear view camera to select
a wide-angle view.
When Parking Assist PARKTRONIC is opera-
tional (
Ypage 189), a symbol for your own vehi-
cle appears in the multimedia system display. If
the Parking Assist PARKTRONIC warning dis-
plays are active, warning displays =light up on
the multimedia system display in yellow or red
accordingly.
Object detection
The rear view camera helps detect moving and
stationary objects. If an object (person, vehicle
or other obstacle) is detected, this object is
marked with a bar. Objects located some dis-
tance from the vehicle away are marked with a
yellow bar. If the distance to the object is very
small, the bar is displayed in red.
Object detection only works in wide-angle view.
To ensure that you can use the function, it must
be switched on in the multimedia system (see
the Digital Operator's Manual).
360° camera
General notes
The 360° camera is a system consisting of four
cameras.
194Driving systems
Driving and parking