2018 MERCEDES-BENZ SL ROADSTER brakes

Engaging neutral ............................ 132
Engaging park position automati-
cally ............................................... 132
Engaging reverse gear ................... 132
Engaging the park position ............ 131
Gearshift recommendation ............ 138
Kickdown ....................................... 134
Manual shifting .............................. 136
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 197
Overview ........................................ 130
Problem (malfunction) ................... 139
Pulling away ................................... 124
Selector lever ................................ 130
Starting the engine ........................ 124
Steering wheel paddle shifters ...... 136
Transmission position display ........ 131
Transmission positions .................. 133
Automatic transmission emer-
gency mode ....................................... 139
B
Back button ....................................... 237
BAS (Brake Assist System) ................. 60
Battery (SmartKey)
Checking .......................................... 76
Important safety notes .................... 75
Replacing ......................................... 76
Battery (vehicle)
Charging ........................................ 277
Display message ............................ 214
Important safety notes .................. 275
Jump starting ................................. 278
Overview ........................................ 275
Belt
see Seat belts
Belt warning ......................................... 44
Blind Spot Assist
see Active Blind Spot Assist
Bluetooth
®
Searching for a mobile phone ........ 240
see also Digital Operator's Man-
ual .................................................. 236
Telephony ...................................... 239
Brake Assist System
see BAS (Brake Assist System) Brake Assist with cross-traffic
function
Function/notes ................................ 61
Important safety notes .................... 61
Brake fluid
Display message ............................ 206
Notes ............................................. 315
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Adaptive ........................................... 65
Display message ............................ 212
Brakes
ABS .................................................. 60
Adaptive Brake Assist ...................... 64
BAS .................................................. 60
Brake Assist with cross-traffic
function ........................................... 61
Brake fluid (notes) ......................... 315
Display message ............................ 201
EBD .................................................. 69
High-performance brake system .... 148
Important safety notes .................. 146
Maintenance .................................. 147
Parking brake ................................ 142
Riding tips ...................................... 146
Warning lamp ................................. 228
Breakdown
see Flat tire
see Towing away
Breakdown assistance
Reflective safety jacket .................. 269
Where will I find...? ........................ 269
Brightness control (instrument
cluster lighting) ................................... 33
C
California
Important notice for retail cus-
tomers and lessees .......................... 25
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
Car wash ........................................ 263
6Index

Overview .......................................... 78
Power closing ..................................80
Drinking and drivin g........................ .145
Drive program
Automatic transmission ................. 134
Display ...........................................1 31
SETUP (on-board computer,
Mercedes-AMG vehicles) ...............1 98
Driver's door
see Doors
Driving abroad
Mercedes-Benz Service ................. 263
Driving on flooded roads .................. 148
Driving safety system
Active Brake Assist .......................... 62
Driving safety systems
ABS (Anti-lock Braking System) ....... 60
Active Brake Assist with cross-
traffic function ................................. 69
ADAPTIVE BRAKE .............................6 9
Adaptive Brake Assist ...................... 64
Adaptive brake lights ....................... 65
BAS (Brake Assist System) .............. 60
Brake Assist with cross-traffic
function ........................................... 61
Distance warning function ............... 63
EBD (electronic brake force distri-
bution) ............................................. 69
ESP
®(Electronic Stability Pro-
gram) ............................................... 65
Important safety information ........... 60
Overview .......................................... 59
STEER CONTROL ............................. 71
Driving system
Active Body Control (ABC) (except
Mercedes-AMG vehicles) ............... 163
Active Body Control (ABC)
(Mercedes-AMG vehicles) .............. 165
Distance Pilot DISTRONIC with
Steering Pilot and Stop&Go Pilot ... 158
Parking Pilot .................................. 170
RACE START (Mercedes-AMG
vehicles) ........................................ 161
Driving systems
Active Blind Spot Assist ................. 179
Active Driving Assistance pack-
age ................................................. 179
Active Lane Keeping Assist ............ 181 Adaptive Damping System ............. 162
ATTENTION ASSIST ........................ 177
Cruise control ................................ 149
Disp
lay me
ssage ............................ 215
DISTRONIC PLUS ........................... 151
HOLD function ............................... 159
PARKTRONIC ................................. 167
Rear view camera .......................... 174
Driving tips
AMG ceramic brakes ..................... 148
Automatic transmission ................. 133
Brakes ........................................... 146
Break-in period .............................. 121
Distance Pilot DISTRONIC ............. 157
Downhill gradient ........................... 146
Drinking and driving ....................... 145
Driving in winter ............................. 148
Driving on flooded roads ................ 148
Driving on wet roads ...................... 148
Exhaust check ............................... 145
Fuel ................................................ 144
General .......................................... 144
Hydroplaning ................................. 148
Icy road surfaces ........................... 148
Limited braking efficiency on sal-
ted roads ....................................... 147
Snow chains .................................. 287
Subjecting brakes to a load ........... 147
Wet road surface ........................... 147
DVD video
Operating (on-board computer) ..... 191
see also Digital Operator's Man-
ual .................................................. 236
DYNAMIC SELECT button (all vehi-
cles except Mercedes-AMG vehi-
cles) .................................................... 128
DYNAMIC SELECT controller
(Mercedes-AMG vehicles) ................. 129
E
EASY-ENTRY feature
Activating/deactivating ................. 196
Function/notes ............................. 101
EASY-EXIT feature
Crash-responsive ........................... 102
Function/notes ............................. 101
Switching on/off ........................... 196
Index9

Turn signalsDisplay message ............................ 212
Switching on/off ........................... 107
Two-way radio
Frequencies ................................... 310
Installation ..................................... 310
Transmission output (maximum) .... 310
Type identification plate
see Vehicle identification plate
U
Umbrella holder ................................. 243
Unlocking
Emergency unlocking ....................... 80
From inside the vehicle (central
unlocking button) ............................. 79
Upshift indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 197
USB devices
Connecting to the Media Inter-
face ...............................................2 41
V
Vehicle
Correct use ...................................... 28
Data acquisition ............................... 29
Display message ............................ 222
Electronics ..................................... 310
Equipment ....................................... 25
Individual settings .......................... 194
Limited Warranty .............................2 9
Loading .......................................... 295
Locking (in an emergency) ............... 80
Locking (SmartKey) .......................... 73
Lowering ........................................ 308
Maintenance .................................... 26
Parking for a long period ................ 144
Pulling away ................................... 124
Raising ........................................... 305
Reporting problems ......................... 28
Securing from rolling away ............ 305
Tow-starting ................................... 280
Towing away .................................. 280
Transporting .................................. 282
Unlocking (in an emergency) ........... 80
Unlocking (SmartKey) ...................... 73
Vehicle data ................................... 317 Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 317
Vehicle dimensions ........................... 317
Vehicle emergency locking ................ 80
Vehicle identification number
see VIN
Vehicle identification plate .............. 311
Vehicle level
Active Body Control (ABC) (except
Mercedes-AMG vehicles) ............... 163
Active Body Control (ABC)
(Mercedes-AMG vehicles) .............. 165
Display message ............................ 215
Vehicle tool kit .................................. 270
Video
Operating the DVD ......................... 191
see also Digital Operator's Man-
ual .................................................. 236
VIN
Seat ............................................... 312
Type plate ...................................... 311W
Warning and indicator lampsABS ................................................ 229
Active Brake Assist ........................ 234
Brake Assist ................................... 234
Brakes ........................................... 228
Check Engine ................................. 232
Coolant .......................................... 232
Distance Pilot DISTRONIC ............. 234
Distance warning ........................... 234
ESP
®.............................................. 229
ESP®OFF ....................................... 230
Fuel tank ........................................ 232
General notes ................................ 227
Parking brake ................................ 231
PASSENGER AIR BAG ...................... 41
Reserve fuel ................................... 232
Restraint system ............................ 231
Seat belt ........................................ 227
SPORT handling mode ................... 231
Tire pressure monitor .................... 235
Warning triangle ................................ 269
Warranty .............................................. 25
Index21

The following text is published as required of
manufacturers under Title 49, Code of U.S. Fed-
eral Regulations, Part 575 pursuant to the
"National Traffic and Motor Vehicle Safety Act of
1966".
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA) in addition to notifying Mercedes-Benz USA, LLC.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a safety
defect exists in a group of vehicles, it may order
a recall and remedy campaign. However, NHTSA
cannot become involved in individual problems
between you, your dealer, or Mercedes-Benz
USA, LLC.
To contact NHTSA, you may call the Vehicle
Safety Hotline toll-free at
1-888-327-4236(TTY: 1-800-424-9153); go to
http://www.safercar.gov ; or write to: Admin-
istrator, NHTSA, 400 Seventh Street, SW.,
Washington, DC 20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited Warranty
!
Observe the notes in this Operator's Manual
regarding the correct operation of your vehi-
cle and possible damage to the vehicle. Dam-
age to the vehicle which is caused by violation
of these notes is not covered by the
Mercedes-Benz implied warranty or the new
or used-vehicle warranty.
QR codes for the rescue card
The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident, rescue services can use
the QR code to quickly find the appropriate res- cue card for your vehicle. The current rescue
card contains the most important information
about your vehicle in a compact form, e.g. the
routing of the electric cables.
You can find more information under http://
portal.aftersales.i.daimler.com/public/ content/asportal/en/communication/
informationen_fuer/QRCode.html.
Data stored in the vehicle
Data storage
A wide range of electronic components in your
vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about:
Rvehicle's operating state
Rincidents
Rmalfunctions
In general, this technical information docu-
ments the state of a component, a module, a
system or the surroundings.
These include, for example:
Roperating conditions of system components,
e.g. fluid levels
Rthe vehicle's status messages and those of its
individual components, e.g. number of wheel
revolutions/speed, deceleration in move-
ment, lateral acceleration, accelerator pedal
position
Rmalfunctions and defects in important system
components, e.g. lights, brakes
Rvehicle reactions and operating conditions in
special driving situations, e.g. air bag deploy-
ment, intervention of stability control sys-
tems
Rambient conditions, e.g. outside temperature
This data is of an exclusively technical nature
and can be used to:
Rassist in recognizing and rectifying malfunc-
tions and defects
Ranalyze vehicle functions, e.g. after an acci-
dent
Roptimize vehicle function
The data cannot be used to trace the vehicle's
movements.
When your vehicle is serviced, technical infor-
mation can be read from the event data memory
and malfunction data memory.
Services include, for example:
Rrepair services
Rservice processes
Rwarranties
Rquality assurance
Data stored in the vehicle29
Introduction
Z

Rsetting a more favorable seat position for the
front-passenger seat.
Rvehicles with a multicontour seat: increasing
the air pressure in the side bolsters of the seat
backrest.
!Make sure that there are no objects in the
footwell or behind the seats. There is a danger that the seats and/or objects could be dam-
aged when PRE-SAFE
®is activated.
Should an accident not occur, the preventative
measures taken are reversed. Certain settings
must be made yourself.
XIf the seat belt pre-tensioning is not reduced,
move the seat backrest back slightly.
Seat belt pre-tensioning is released.
PRE-SAFE®PLUS (anticipatory occu-
pant protection system PLUS)
Introduction
PRE-SAFE®PLUS is only available in vehicles
with the Driving Assistance package.
Using the radar sensor system, PRE-SAFE
®
PLUS is able to detect that a head-on or rear-end
collision is imminent. In certain hazardous sit-
uations, PRE-SAFE
®PLUS takes pre-emptive
measures to protect the vehicle occupants.
Important safety notes
The intervention of PRE-SAFE®PLUS cannot
prevent an imminent collision.
The driver is not warned about the intervention
of PRE-SAFE
®PLUS.
PRE-SAFE®PLUS does not intervene if the vehi-
cle is backing up.
When driving, or when parking or exiting a park-
ing space with assistance from Parking Pilot,
PRE-SAFE
®PLUS will not apply the brakes.
Function
PRE-SAFE®PLUS intervenes in certain situa-
tions if the radar sensor system detects an
imminent head-on or rear-end collision. PRE-SAFE
®PLUS takes the following measures
depending on the hazardous situation detected:
Rif the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned.
Rif the radar sensor system detects that a rear-
end collision is imminent:
-the brake pressure is increased if the driver
applies the brakes when the vehicle is sta-
tionary.
-the seat belts are pre-tensioned.
The PRE-SAFE®PLUS braking application is can-
celed:
Rif the accelerator pedal is depressed when a
gear is engaged
Rif the risk of a collision passes or is no longer
detected
Rif Distance Pilot DISTRONIC indicates an
intention to pull away
If the hazardous situation passes without result-
ing in an accident, the original settings are
restored.
Automatic measures after an acci-
dent
Immediately after an accident, the following
measures are implemented, depending on the
type and severity of the impact:
Rthe hazard warning lamps are switched on
Rthe emergency lighting is activated
Rthe vehicle doors are unlocked
Rthe front side windows are lowered
Rthe electrically adjustable steering wheel is
raised when the driver's door is opened
Rthe engine is switched off and the fuel supply
is switched off
Rvehicles with mbrace: automatic emergency
call
Children in the vehicle
Important safety notes
If a child younger than twelve years old and
under 5 ft (1.50 m)in height is traveling in the
vehicle:
Ralways secure the child in a child restraint
system suitable for Mercedes-Benz vehicles.
56Children in the vehicle
Safety

RActive Brake Assist with cross-traffic function(Ypage 69)
RSTEER CONTROL (Ypage 71)
Important safety notes
If you fail to adapt your driving style or if you are
inattentive, the driving safety systems can nei-
ther reduce the risk of an accident nor overridethe laws of physics. Driving safety systems are
merely aids designed to assist driving.
You are responsible for maintaining the distance
to the vehicle in front, for vehicle speed, for
braking in good time, and for staying in lane.
Always adapt your driving style to suit the pre-
vailing road and weather conditions and main-
tain a safe distance from the vehicle in front.
Drive carefully.
The driving safety systems described only work
as effectively as possible when there is ade-
quate contact between the tires and the road
surface. Pay particular attention to the informa-
tion regarding tires, recommended minimum
tire tread depths etc. in the "Wheels and tires"
section (
Ypage 285).
In wintry driving conditions, always use winter
tires (M+S tires) and if necessary, snow chains.
Only in this way will the driving safety systems
described in this section work as effectively as
possible.
ABS (Anti-lock Braking System)
General information
ABS regulates brake pressure in such a way that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when
braking.
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from a speed of about 5 mph
(8 km/h), regardless of road-surface conditions.
ABS works on slippery surfaces, even when you
only brake gently.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 60).
GWARNING
If ABS is malfunctioning, the wheels could
lock when braking. The steerability and brak-
ing characteristics would be severely affec-
ted. There is an increased danger of skidding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (
Ypage 229 )and dis-
play messages which may be shown in the
instrument cluster (
Ypage 201).
Brakes
XIf ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit-
uation is over.
XTo make a full brake application: depress
the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication
of hazardous road conditions, and functions as a
reminder to take extra care while driving.
BAS (Brake Assist System)
General information
BAS operates in emergency braking situations.
If you depress the brake pedal quickly, BAS
automatically boosts the braking force, thus
shortening the stopping distance.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 60).
GWARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
60Driving safety systems
Safety

Braking
XKeep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
Brake Assist with cross-traffic func-
tion
General information
Brake Assist with cross-traffic function can help
you to minimize the risk of a collision with a
vehicle or a pedestrian and reduce the effects of
such a collision. If Brake Assist with cross-traffic
function detects a danger of collision, you are
assisted when braking.
iObserve the "Important safety notes" sec-
tion (Ypage 60).
Brake Assist with cross-traffic function is only
available in vehicles with the Driving Assistance
package.
For Brake Assist with cross-traffic function to
assist you when driving, the radar sensor system
and the camera system must be operational.
The sensor system and camera system help
Brake Assist with cross-traffic function detect
obstacles:
Rthat are in the path of your vehicle for an
extended period of time
Rthat cross the path of your vehicle
In addition, pedestrians in the path of your vehi-
cle can be detected.
Brake Assist with cross-traffic function detects
pedestrians using typical characteristics such
as body contours and the posture of a person
standing upright.
If the radar sensor system or the camera system
is malfunctioning, Brake Assist with cross-traffic function is restricted or no longer available. The
brake system is still available with comple te
b

rake boosting effect and BAS.
iObserve the restrictions described in the
"Important safety notes" section
(
Ypage 61).
Important safety notes
GWARNING
Active Brake Assist with cross-traffic function cannot always clearly identify objects and
complex traffic situations.
In such cases, Active Brake Assist with cross-
traffic function might:
Rissue an unnecessary warning or brake
Rissue no warning or not brake
Always pay careful attention to the traffic sit-
uation; do not rely on the Active Brake Assist
with cross-traffic function alone.
Always be ready to brake and possibly take
evasive action.
GWARNING
Brake Assist with cross-traffic function can-
not always clearly identify people, particularly if they are moving. Brake Assist with cross-
traffic function cannot intervene in these
cases. There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
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.
Driving safety systems61
Safety
Z

Recognition by theradar sensor system is also
impaire dif:
Rthere is dirt on th esensor sor anythin gelse
covering th esensor s
Rthere is interferenc eby other radar source s
Rthere are strongradar reflections, for exam-
ple in parking garages
Ra narrow vehicl eis traveling in front, e.g. a
motorbike
Ra vehicl eis traveling in fron ton adifferen tlin e
Rvehicles quickly mov eint oth eradar sensor
system detection range
Recognition by th ecamera system is also
impaire din th eevent of:
Rdirt on th ecamera or if th ecamera is covered
Rglar eon th ecamera system, e.g. from th esun
bein glow in th esk y
Rdarkness
Ror if:
-pedestrian smov equickly, e.g. int oth epat h
of th evehicl e
-thecamera system no longer recognizes a
pedestrian as aperson due to special cloth -
ing or other objects
-a pedestrian is concealed by other objects
-th etypical outlin eof aperson is no tdistin-
guishable from th ebackgroun d
Followin gdamag eto th efron ten dof th evehicle,
hav eth econfiguration and operation of th e
radar sensor schecke dat aqualified specialist
workshop. This also applie sto collision sat slow
speeds wher ethere is no visible damag eto th e
fron tof th e
ve
hicle.
Followin gdamag eto th ewindshield, hav eth e
configuration and operation of th ecamera sys-
te m checke dat aqualified specialist workshop.
Function
To avoi d acollision ,Brake Assist wit hcross -
traffic function calculates th ebrak eforce nec-
essary if:
Ryou approac han obstacle, and
RBrake Assist wit hcross-traffic function has
detecte d ariskof collision
When drivin gat aspeed under 20 mp h
(30 km/h) :if you depress th ebrak epedal ,
Brake Assist wit hcross-traffic function is acti-
vated. The increas ein brak epressur ewill be
carrie dout at th elast possibl emoment. When drivin
gat aspeed above 20 mp h
(30 km/h) :if you depress th ebrak epedal
sharply, Brake Assist wit hcross-traffic function
automatically increases th ebrak epressur eto a
degree suited to th etraffic situation .
Brake Assis twit hcross-traffic function provide s
braking assistanc ein hazardous situation swit h
vehicles in fron twithin aspee drange between
4 mph (7 km/h) and 15 5mph (25 0km/h).
Up to aspee dof approximately 44 mph
(70 km/h), Brake Assist wit hcross-traffic func-
tion may reac tto :
Rstationary objects in th epat hof your vehicle,
e.g. stoppe dor parked vehicles
Rpedestrian sin th epat hof your vehicl e
Robstacles crossing your path, whic hmov ein
th edetection range of th esensor sand are
recognized by th em
iIf Brake Assist wit
hcross-traffic function
require s aparticularly high braking force ,pre -
ventative passenger protection measures
(PRE-SAF E
®)are activated at th esam etime
(Ypage 55) .
XKeepth ebrak epedal depressed until th e
emergenc ybraking situation is over.
AB Sprevents th ewheels from locking.
Brake Assist wit hcross-traffic function is deac -
tivated and th ebrakes function as usual again if:
Ryou release th ebrak epedal
Rthere is no longer aris kof collision
Rno obstacle is detecte din fron tof your vehicl e
Ryou depress th eaccelerato rpedal
Ryou activat ekickdown
Active Brake Assist
General information
iObserv eth e"Importan tsafet ynotes" sec -
tion (Ypage 60) .
Active Brake Assis tconsist sof adistanc ewarn -
ing function wit han autonomous braking func-
tion and Adaptive Brake Assist .
Active Brake Assis tcan help you to minimiz eth e
ris kof acollision wit hth evehicl ein fron tor
reduce th eeffects of suc h acollision .
If Active Brake Assist detects that there is aris k
of collision ,you will be warned visually and
acoustically. If you do no treac tto th evisual and
62Driving safety systems
Safety