2019 MERCEDES-BENZ SL CLASS parking sensors

Brake Assist with cross-traffic
function ........................................... 61
Brake fluid (notes) ......................... 324
Display message............................ 206
EBD .................................................. 69
High-performance brake system .... 152
Important safety notes .................. 151
Maintenance .................................. 152
Parking brake ................................ 147
Riding tips ...................................... 151
Warning lamp ................................. 235
Breakdown assistance
Reflective safety jacket .................. 276
Where will I find...? ........................ 276
see Flat tire
see Towing away
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 ........................................ 271
Exhaust pipe .................................. 275
Exterior lights ................................ 275
Matte finish ................................... 273
Notes............................................. 270
Paint .............................................. 272
Power washer ................................ 272
Rear view camera .......................... 275
Sensors ......................................... 275
Washing by hand ........................... 271
Wheels ........................................... 274
Windows ........................................ 274
Wiper blades .................................. 274
CD
see also Digital Operator's Man-
ual .................................................. 243
CD player (on-board computer)........ 196
Center console
Lower section .................................. 36
Lower section (AMG vehicles) .......... 37
Upper section .................................. 35
Central locking
Automatic locking (on-board
computer) ...................................... 201
Locking/unlocking (SmartKey)........ 74
Child
Restraint system .............................. 58
Child seat
Forward-facing restraint system ...... 59
On the front-passenger seat............ 59
Rearward-facing restraint system .... 59
Children
Special seat belt retractor ............... 57
Children in the vehicle
Important safety notes .................... 57
Cigarette lighter................................ 254
Cleaning
Mirror turn signal ........................... 275
Climate control
Automatic climate control (dual-
zone) .............................................. 116
Controlling automatically ............... 119
Cooling with air dehumidification .. 118
Defrosting the windows................. 121
Defrosting the windshield .............. 120
General notes ................................ 116
Indicator lamp ................................ 119
Information about using auto-
matic climate control ..................... 117
Maximum cooling .......................... 121
Overview of systems ...................... 116
Problem with the rear window
defroster ........................................ 121
Problems with cooling with air
dehumidification ............................ 119
Refrigerant ..................................... 326
Refrigerant filling capacity ............. 326
Setting the air distribution ............. 120
Setting the air vents ...................... 122
Setting the airflow ......................... 120
Setting the climate mode (AIR
FLOW) ............................................ 119
Setting the temperature ................ 119
Switching air-recirculation mode
on/off............................................ 122
Switching on/off........................... 118
Switching residual heat on/off ...... 122
Index7

Always pay careful attention to the traffic
situation and be ready to brake.
GWARNING
Active Brake Assist with cross-traffic func-
tion 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
accident.
Always pay careful attention to the traffic
situation 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 alsoimpaired if:
Rthere is dirt on the sensors or anything elsecovering 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. amotorbike
Ra vehicle is traveling in front on a differentline
Rvehicles quickly move into the radar sensorsystem detection range
Recognition by the camera system is alsoimpaired in the event of:
Rdirt on the camera or if the camera is cov-ered
Rglare on the camera system, e.g. from thesun being low in the sky
Rdarkness
Ror if:
-pedestrians move quickly, e.g. into thepath of the vehicle
-the camera system no longer recognizes apedestrian as a person due to specialclothing or other objects
-a pedestrian is concealed by otherobjects
-the typical outline of a person is not dis-tinguishable from the background
Following damage to the front end of the vehi-cle, have the configuration and operation ofthe radar sensors checked at a qualified spe-cialist workshop. This also applies to collisionsat slow speeds where there is no visible dam-age to the front of the vehicle.
Following damage to the windshield, have theconfiguration and operation of the camera sys-tem checked at a qualified specialist work-shop.
Function
To avoid a collision, Brake Assist with cross-traffic function calculates the brake force nec-essary if:
Ryou approach an obstacle, and
RBrake Assist with cross-traffic function hasdetected a risk of collision
When driving at a speed under 20 mph(30 km/h):if you depress the brake pedal,Brake Assist with cross-traffic function is acti-vated. The increase in brake pressure will becarried out at the last possible moment.
When driving at a speed above 20 mph(30 km/h):if you depress the brake pedalsharply, Brake Assist with cross-traffic func-tion automatically increases the brake pres-sure to a degree suited to the traffic situation.
Brake Assist with cross-traffic function pro-vides braking assistance in hazardous situa-tions with vehicles in front within a speedrange between 4 mph (7 km/h) and 155 mph(250 km/h).
62Driving safety systems
Safety

Up to a speed of approximately 44 mph(70 km/h), Brake Assist with cross-trafficfunction may react to:
Rstationary objects in the path of your vehi-cle, e.g. stopped or parked vehicles
Rpedestrians in the path of your vehicle
Robstacles crossing your path which move inthe detection range of the sensors and aredetected
iIf Brake Assist with cross-traffic functionrequires a particularly high braking force,preventative passenger protection measures
(PRE-SAFE®) are activated at the same time(Ypage 55).
XKeep the brake pedal depressed until theemergency braking situation is over.ABS prevents the wheels from locking.
Brake Assist with cross-traffic function isdeactivated and the brakes function as usualagain if:
Ryou release the brake pedal
Rthere is no longer a risk of collision
Rno obstacle is detected in front of your vehi-cle
Ryou depress the accelerator pedal
Ryou activate kickdown
Active Brake Assist
General information
iObserve the "Important safety notes" sec-tion (Ypage 60).
Active Brake Assist consists of a distancewarning function with an autonomous brakingfunction and Adaptive Brake Assist.
Active Brake Assist can help you to minimizethe risk of a collision with the vehicle in frontor reduce the effects of such a collision.
If Active Brake Assist detects that there is arisk of collision, you will be warned visuallyand acoustically. If you do not react to the vis-ual collision warning or the warning tone,autonomous braking can be initiated in criticalsituations. If you apply the brake yourself in acritical situation, Adaptive Brake Assist of theActive Brake Assist system supports you.
Important safety notes
In particular, the detection of obstacles can beimpaired if:
Rthere is dirt on the sensors or anything elsecovering the sensors
Rthere is snow or heavy rain
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. amotorbike
Ra vehicle is traveling in front on a differentline
Ryou are driving a new vehicle or servicing onthe Active Brake Assist system has justbeen carried out
Observe the important safety notes in the"Breaking-in notes" section (Ypage 125).
Following damage to the front end of the vehi-cle, have the configuration and operation ofthe radar sensor checked at a qualified spe-cialist workshop. This also applies to collisionsat slow speeds where there is no visible dam-age to the front of the vehicle.
Activating/deactivating
Active Brake Assist is automatically activeafter switching on the ignition.
You can activate or deactivate Active BrakeAssist using the on-board computer(Ypage 198). When deactivated, the distancewarning function and the autonomous brakingfunction are also deactivated.
If Active Brake Assist is deactivated, the

intervene in these cases. There is a risk of
an accident.
Always pay particular attention to the traffic
situation and be prepared to brake, espe-
cially if Active Brake Assist with cross-traffic
function alerts you.
In order to maintain the appropriate distanceto the vehicle in front and thus prevent a colli-sion, you must apply the brakes yourself.
GWARNING
Active Brake Assist with cross-traffic func-
tion 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
accident.
Always pay careful attention to the traffic
situation 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 alsoimpaired if:
Rthere is dirt on the sensors or anything elsecovering 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. amotorbike
Ra vehicle is traveling in front on a differentline
Recognition by the camera system is alsoimpaired in the event of:
Rdirt on the camera or if the camera is cov-ered
Rglare on the camera system, e.g. from thesun being low in the sky
Rdarkness
Ror if:
-pedestrians move quickly, e.g. into thepath of the vehicle
-the camera system no longer recognizes apedestrian as a person due to specialclothing or other objects
-a pedestrian is concealed by otherobjects
-the typical outline of a pedestrian is notdistinguishable from the background
Following damage to the front end of the vehi-cle, have the configuration and operation ofthe radar sensors checked at a qualified spe-cialist workshop. This also applies to collisionsat slow speeds where there is no visible dam-age to the front of the vehicle.
Following damage to the windshield, have theconfiguration and operation of the camera sys-tem checked at a qualified specialist work-shop.
Function
XTo activate or deactivate:activate ordeactivate Active Brake Assist with cross-traffic function using the on-board computer(Ypage 198).When Active Brake Assist with cross-trafficfunction is deactivated, the

As a result, Active Distance Assist
DISTRONIC may neither give warnings nor
intervene in such situations. There is a risk
of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
GWARNING
Distance keeping assistant cannot always
clearly identify other road users and com-
plex traffic situations.
In such cases, distance keeping assistant
can:
Raccelerate or brake the vehicle unexpect-
edly
Rintervene unexpectedly
There is a risk of an accident.
Continue to drive carefully and be ready to
brake, especially if distance keeping assis-
tant warns you.
GWARNING
Active Distance Assist DISTRONIC brakes
your vehicle with up to 50% of the maximum
possible deceleration. If this deceleration is
not sufficient, Active Distance Assist
DISTRONIC alerts you with a visual and
acoustic warning. There is a risk of an acci-
dent.
Adjust your speed in these cases and main-
tain sufficient distance.
Apply the brakes yourself and/or take eva-
sive action.
!When Active Distance Assist DISTRONICor the HOLD function is activated, the vehi-cle brakes automatically in certain situa-tions.
To avoid damage to the vehicle, deactivateActive Distance Assist DISTRONIC and theHOLD function in the following or similar sit-uations:
Rwhen towing the vehicle
Rin the car wash
Active Distance Assist DISTRONIC can neitherreduce the risk of an accident if you fail to
adapt your driving style, nor override the lawsof physics. Active Distance Assist DISTRONICcannot take into account road, weather or traf-fic conditions. Active Distance AssistDISTRONIC is only an aid. You are responsiblefor the distance to the vehicle in front, forvehicle speed, for braking in good time and forstaying in your lane.
Do not use Active Distance Assist DISTRONIC:
RIn road and traffic conditions which do notallow you to maintain a constant speed, e.g.in heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel-erating could cause the drive wheels to losetraction and the vehicle could then skid
RIn poor visibility, e.g. due to fog, heavy rainor snow
Active Distance Assist DISTRONIC may notdetect narrow vehicles driving in front, e.g.motorcycles, or vehicles driving in a staggeredformation.
In particular, the detection of obstacles can beimpaired if:
RThere is dirt on the sensors or anything elsecovering the sensors
RThere is snow or heavy rain
RThere is interference by other radar sources
RThere are strong radar reflections, for exam-ple in parking garages
If Active Distance Assist DISTRONIC no longerdetects a vehicle in front, Distance PilotDISTRONIC may unexpectedly accelerate tothe speed stored.
This speed may:
RBe too high if you are driving in a turninglane or an exit lane
RBe so high when driving in the right-handlane that you overtake vehicles in the left-hand lane
RBe so high in the left lane that you passvehicles driving on the right
If there is a change of drivers, advise the newdriver of the speed stored.
Driving systems157
Driving an d parking
Z

Each time you start the engine with the Smart-Key or the Start/Stop button, the comfortablesetting is activated. For further informationabout starting the engine, see (Ypage 127).
Selecting sports tuning
The firmer setting of the suspension tuning insports mode ensures even better contact withthe road. Select this mode if you favor a firmersuspension setting.
XMake sure that the engine is running or thatit has been switched off by the ECO start/stop function.
XIf indicator lampDDis not lit:press but-tonC.Indicator lampDlights up. Sports suspen-sion tuning is selected.
TheAMG Suspension System SPORTAMG Suspension System SPORTmes-sage appears in the multifunction display.
Selecting comfort tuning
In comfort mode, the driving characteristics ofyour vehicle are more comfortable. Select thismode if you favor a more comfortable drivingstyle.
XMake sure that the engine is running or thatit has been switched off by the ECO start/stop function.
XIf indicator lampDDis lit:press buttonC.Indicator lampDgoes out. Comfortablesuspension tuning is selected.
TheAMG Suspension System COMFORTAMG Suspension System COMFORTmessage appears in the multifunction dis-play.
Activating the driving dynamics dis-
play in the COMAND display
Using the driving dynamics display in the mul-timedia system display, you can see the driveprogram you selected as well as additionalinformation on the vehicle's operating status.
XSwitch on COMAND. Further informationcan be found in the Digital Operator's Man-ual.
The following information on the vehicle'soperating status is displayed in the drivingdynamics display:
RDrive program selected (Ypage 133)
RAccelerator pedal position shown in %
RBrake pedal position shown in %
RSteering angle
RVehicle level display (Ypage 170)
RActivity of the ABC spring struts
RLevel settings animation
RG-FORCE cross to display longitudinal andlateral acceleration (only available inSport,Sport PlusandRACEdrive programs)
ROverrun mode animation
Parking Assist PARKTRONIC
Important safety notes
Parking Assist PARKTRONIC is an electronicparking aid with ultrasound. It monitors thearea around your vehicle using six sensors inthe front bumper and six sensors in the rearbumper. Parking Assist PARKTRONIC visuallyand audibly indicates the distance betweenyour vehicle and an object.
Parking Assist PARKTRONIC is only an aid. It isnot a replacement for your attention to yourimmediate surroundings. You are alwaysresponsible for safe maneuvering, parking and
172Driving systems
Driving an d parking

exiting a parking space. Make sure that thereare no persons, animals or objects in themaneuvering area when you are maneuveringor parking.
!When parking, pay particular attention toobjects above or below the sensors, such asflower pots or trailer drawbars.PARKTRONIC does not detect such objectswhen they are in the immediate vicinity ofthe vehicle. You could damage the vehicleor the objects.
The sensors may not detect snow and otherobjects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic carwash, the compressed-air brakes on a truckor a pneumatic drill could causePARKTRONIC to malfunction.
PARKTRONIC may not function correctly onuneven terrain.
Parking Assist PARKTRONIC is activated auto-matically when you:
Rswitch on the ignition
Rshift the transmission to position[,^or\\
Rrelease the electric parking brake
Parking Assist PARKTRONIC is deactivated atspeeds above 11 mph (18 km/h). It is reacti-vated at lower speeds.
Range of the sensors
General notes
Parking Assist PARKTRONIC does not take intoaccount obstacles located:
Rbelow the detection range, such as persons,animals or objects
Rabove the detection range, e.g. overhangingloads, tail sections or loading ramps oftrucks
CSensors in the front bumper, left-hand side(example)
The sensors must be free from dirt, ice orslush. They can otherwise not function cor-rectly. Clean the sensors regularly, taking carenot to scratch or damage them (Ypage 275).
Range
Front sensors
CenterApprox. 40 in (approx.100 cm)
CornersApprox. 24 in (approx.60 cm)
Driving systems173
Driving and parking
Z

Problems with Parking Assist PARKTRONIC
ProblemPossible causes/consequences andPPSolutions
Only the red segmentsin the Parking AssistPARKTRONIC warningdisplays are lit. You alsohear a warning tone forapproximately two sec-onds.
Parking AssistPARKTRONIC is deacti-vated after approx-imately five secondsand the indicator lampin the Parking AssistPARKTRONIC buttonlights up.
Parking Assist PARKTRONIC has malfunctioned and has been deac-tivated.
XIf problems persist, have Parking Assist PARKTRONIC checked ata qualified specialist workshop.
Only the red segmentsin the Parking AssistPARKTRONIC warningdisplays are lit. ParkingAssist PARKTRONIC isdeactivated afterapproximately five sec-onds.
The Parking Assist PARKTRONIC sensors are dirty or there is inter-ference.
XClean the Parking Assist PARKTRONIC sensors (Ypage 275).
XSwitch the ignition back on.
The problem may be caused by an external source of radio or ultra-sound waves.
XCheck to see if Parking Assist PARKTRONIC works at a differentlocation.
Active Parking Assist
General notes
Active Parking Assist is an electronic parkingaid with ultrasound. It measures the road onboth sides of the vehicle. A parking symbolindicates a suitable parking space. Activesteering intervention can assist you duringparking and when exiting a parking space. Youcan also still use Parking Assist PARKTRONIC(Ypage 172).
Important safety notes
Active Parking Assist is merely an aid. It is nota replacement for your attention to your imme-diate surroundings. You are always responsi-ble for safe maneuvering, parking and exiting aparking space. Make sure that no persons, ani-mals or objects are in the path of your vehicle.
When Parking Assist PARKTRONIC is deactiva-ted, Active Parking Assist is also unavailable.
GWARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
cause you to collide with other road users or
objects. There is a risk of an accident.
Pay attention to other road users or objects.
Stop the vehicle if necessary or cancel the
Active Parking Assist parking procedure.
GWARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
cause you to collide with other road users or
objects. There is a risk of an accident.
Pay attention to other road users or objects.
Stop the vehicle if necessary or cancel the
Driving systems175
Driving and parking
Z