child restraint MERCEDES-BENZ CLS-Class 2015 W218 Owner's Manual

Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 237
Display message ............................ 263
Notes/functio n.............................. 214
see Active Blind Spot Assist
Box (trunk) ......................................... 291
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 248
Notes ............................................. 390
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display message ............................ 256
Brakes
ABS .................................................. 70
Adaptive Brake Assist ...................... 75
BAS .................................................. 71
BAS PLUS with Cross-Traffic
Assist ............................................... 71
Brake fluid (notes) ......................... 390
Display message ............................ 246
High-performance brake system .... 176
HOLD function ............................... 191
Important safety notes .................. 175
Maintenance .................................. 176
Parking brake ................................ 172
Riding tips ...................................... 175
Warning lamp ................................. 275
Breakdown
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 33 C
California Important notice for retail cus-
tomers and lessees .......................... 24
Calling up a malfunction
see Display messages
Car
see Vehicle Car key
see SmartKey
Care
360° camera ................................. 322
Car wash ........................................ 317
Carpets .......................................... 324
Display ........................................... 322
Exhaust pipe .................................. 322
Exterior lights ................................ 321
Gear or selector lever .................... 323
Interior ........................................... 322
Matte finish ................................... 320
Note s............................................. 317
Paint .............................................. 319
Plastic trim .................................... 322
Power washer ................................ 319
Rear view camera .......................... 321
Roof lining ...................................... 324
Seat belt ........................................ 324
Seat cove r..................................... 323
Sensors ......................................... 321
Steering wheel ............................... 323
Trim pieces .................................... 323
Washing by hand ........................... 318
Wheels ........................................... 320
Windows ........................................ 320
Wiper blades .................................. 321
Wooden trim .................................. 323
Cargo tie down rings ......................... 290
CD player (on-board computer) ........ 233
Center console
Lower section .................................. 38
Lower section (AMG vehicles) .......... 39
Upper section .................................. 37
Central locking
Automatic locking (on-board com-puter) ............................................. 240
Locking/unlocking (SmartKey )........ 84
Child
Restraint system .............................. 65
Child seat
Forward-facing restraint system ...... 68
LATCH-type (ISOFIX) child seat
anchors ............................................ 66
On the front-passenger seat ............ 68
Rearward-facing restraint system .... 68
Top Tether ....................................... 67 6
Index

Mounting wheels
Lowering the vehicle ...................... 371
Mounting a new wheel ................... 371
Preparing the vehicle .................... .368
Raising the vehicle ......................... 368
Removing a wheel .......................... 370
Securing the vehicle against roll-
ing away ........................................ 368
MP3
Operation ....................................... 233
see separate operating instructions
Multicontour seat
Adjusting (on the seat) .................. 110
Multifunction display
Function/notes ............................ .229
Permanent display ......................... 238
Multifunction steering wheel
Operating the on-board computer .. 227
Overview .......................................... 35 N
Navigation Menu (on-board computer) ............ 231
NECK-PRO head restraints
Operation ......................................... 61
Resetting triggered .......................... 61
NECK-PRO luxury head restraints
Important safety notes .................... 61
Operation ......................................... 61
Resetting when triggered ................. 62
Notes on breaking-in a new vehi-
cle ....................................................... 148 O
Occupant Classification System
(OCS) Conditions ....................................... 53
Faults ............................................... 58
Operation ......................................... 54
System self-test ............................... 56
Occupant safety
Automatic measures after an acci-
dent ................................................. 63
Children in the vehicle ..................... 64
Important safety notes .................... 45
Introduction to the restraint sys-
tem ................................................. .44Occupant Classification System
(OCS) ............................................... 53
PASSENGER AIR BAG indicator
lamps ............................................... 45
Pets in the vehicle ........................... 70
PRE-SAFE
®
(anticipatory occu-
pant protection) ...............................62
PRE-SAFE ®
PLUS (anticipatory
occupant protection PLUS) .............. 63
Restraint system warning lamp ........ 45
OCS
Conditions ....................................... 53
Faults ............................................... 58
Operation ......................................... 54
System self-test ...............................56
Odometer ...........................................2 29
Oil
see Engine oil
On-board computer
AMG menu ..................................... 242
Assistance menu ........................... 235
Audio menu ................................... 232
Convenience submenu .................. 240
Display messages .......................... 245
Displaying a service message ....... .316
DISTRONIC PLUS ........................... 186
Factory settings submenu ............. 241
Important safety notes .................. 226
Instrument cluster submenu .......... 238
Lighting submenu .......................... 238
Menu overview .............................. 229
Message memory .......................... 245
Navigation menu ............................ 231
Operation ....................................... 227
RACETIMER ................................... 242
Service menu ................................. 237
Settings menu ............................... 237
Standard display ............................ 229
Telephone menu ............................ 233
Trip menu ...................................... 229
Vehicle submenu ........................... 240
Video DVD operation ..................... 233
Operating safety
Declaration of conformity ................ 26
Important safety notes .................... 25
Operating system
see On-board computer 14
Index

Setting the temperature ................ 141
Rear fog lamp
Display message ............................ 256
Rear seat (folding the backrest for-
wards/back) ...................................... 290
Rear seats
Display message ............................ 271
Rear view camera
Cleaning instructions ..................... 321
Displays in the Audio display ......... 206
Displays in the COMAND display ... 206
Function/note s............................. 205
Switching on/of f........................... 205
Rear window blind ............................ 296
Rear window defroster
Problem (malfunction) ................... 144
Switching on/of f........................... 143
Rear-view mirror
Dipping (automatic) ....................... 117
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 392
Refueling
Fuel gaug e....................................... 33
Important safety notes .................. 167
Refueling process .......................... 168
see Fuel
Remote control
Garage door opener ....................... 307
Programming (garage door
opener) .......................................... 307
Replacing bulbs
General notes ................................ 128
Reporting safety defects .................... 27
Rescue card ......................................... 28
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 261
Warning lamp ................................. 280
see Fuel
Residual heat (climate control) ........ 144
Restraint system
Display message ............................ 252
Introduction ..................................... 44
Warning lamp ................................. 279
Warning lamp (function) ................... 45 Reverse gear (selector lever)
........... 157
Reversing feature
Side windows ................................... 97
Sliding sunroof ............................... 101
Trunk lid ........................................... 93
Reversing lamps (display mes-
sage) ................................................... 256
Roadside Assistance (breakdown) .... 24
Roller sunblind
Rear window .................................. 296
Roof lining and carpets (cleaning
guidelines) ......................................... 324
Roof load (maximum) ........................ 392 S
Safety Children in the vehicle ..................... 64
Safety system
see Driving safety systems
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 49
Adjusting the height ......................... 48
Cleaning ......................................... 324
Correct usage .................................. 47
Fastening ......................................... 48
Important safety guidelines ............. 46
Introduction ..................................... 46
Releasing ......................................... 49
Switching belt adjustment on/off
(on-board computer) ...................... 241
Warning lamp ................................. 274
Warning lamp (function) ................... 49
Seats
Adjusting (electrically) ................... 108
Adjusting the 4-way lumbar sup-
port ................................................ 110
Adjusting the active multicontour
seat............................................... 110
Adjusting the head restraint .......... 108
Adjusting the multicontour seat ..... 110
Cleaning the cover ......................... 323
Correct driver's seat position ........ 106
Important safety notes .................. 107
Overview ........................................ 107
Seat heating problem .................... 112
Seat ventilation problem ................ 113 16
Index

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
i Read the information on qualified special-
ist workshops (Y page 26). Panic alarm
X
To activate: press the!button :for
approximately one second.
A visual and audible alarm is triggered if the alarm system is armed.
X To deactivate: press the!button :
again.
or
X Insert the SmartKey into the ignition lock.
or, on vehicles with KEYLESS‑GO: X Press the Start/Stop button.
The SmartKey must be in the vehicle. Occupant safety
Restraint system: introduction
The restraint system can reduce the risk of
vehicle occupants coming into contact with
parts of the vehicle's interior in the event of
an accident. The restraint system can also
reduce the forces to which vehicle occupants
are subjected during an accident.
The restraint system comprises:
R Seat belt system
R Air bags
R Child restraint system
R Child seat securing systems
The components of the restraint system work
in conjunction with each other. They can only
deploy their protective function if, at all times,
all vehicle occupants:
R have fastened their seat belts correctly
(Y page 47)
R have adjusted their seat and head restraint
properly (Y page 107).
As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the cor-
rect driver's seat position (Y page 106).
You also have to make sure that an air bag can inflate properly if deployed (Y page 50).
An air bag supplements a correctly worn seat
belt. As an additional safety device, the air
bag increases the level of protection for vehi-
cle occupants in the event of an accident. For example, if, in the event of an accident, the
protection offered by the seat belt is suffi-
cient, the air bags are not deployed. When an
accident occurs, only the air bags that
increase protection in that particular accident
situation are deployed. However, seat belts
and air bags generally do not protect against objects penetrating the vehicle from the out-
side.
Information on restraint system operation
can be found under "Triggering of the Emer-
gency Tensioning Devices and air bags"
(Y page 59). 44
Occupant safetySafety

For more information about children traveling
with you in the vehicle and on child restraint
systems, see "Children in the vehicle"
(Y page 64). Important safety notes
G
WARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify an air bag system to
accommodate a person with disabilities, con- tact an authorized Mercedes-Benz Center for
details. USA only: for further information con- tact our Customer Assistance Center at
1-800-FOR-MERCede s (1‑800‑367 ‑6372). Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and
at regular intervals while the engine is run-
ning. Therefore, malfunctions can be detec-
ted in good time.
The 6 restraint system warning lamp in
the instrument cluster lights up when the igni- tion is switched on. It goes out no later than afew seconds after the vehicle is started. The
components of the restraint system are in
operational readiness.
A malfunction has occurred if the 6
restraint system warning lamp:
R does not light up after the ignition is
switched on
R does not go out after a few seconds with
the engine running
R lights up again while the engine is running G
WARNING
If restraint system is malfunctioning, restraint system components may be triggered unin-
tentionally or might not be triggered at all in
the event of an accident with a high rate of
vehicle deceleration. This can affect the Emer- gency Tensioning Device or air bag, for exam-
ple. This poses an increased risk of injury or
even fatal injury.
Have the restraint system checked and
repaired in a qualified specialist workshop as
soon as possible. PASSENGER AIR BAG OFF indicator
lamp
PASSENGER AIR BAG OFF indicator lamp
:
is part of the Occupant Classification System (OCS).
The PASSENGER AIR BAG OFF indicator lamp
informs you about the status of the front-
passenger front air bag.
If the PASSENGER AIR BAG OFF indicator
lamp:
R is lit: the front-passenger front air bag is
deactivated. It will then not be deployed in
the event of an accident.
R does not light up: the front-passenger
front air bag is enabled. If, in the event of an
accident, all deployment criteria are met,
the front-passenger front air bag is
deployed. Occupant safety
45Safety Z

Depending on the person in the front-
passenger seat, the front-passenger front air
bag must either be deactivated or enabled;
see the following points. You must make sure of this both before and during a journey.
R Children in a child restraint system:
whether the front-passenger front air bag is
enabled or deactivated depends on the
installed child restraint system, and the age and size of the child. Therefore, be sure to
observe the notes on the "Occupant Clas-
sification System (OCS)" (Y page 53) and
on "Children in the vehicle" (Y page 64).
There you will also find instructions on rear-
ward and forward-facing child restraint sys- tems on the front-passenger seat.
R All other persons: depending on the clas-
sification of the person in the front-
passenger seat, the front-passenger front
air bag is enabled or deactivated
(Y page 53). Be sure to observe the notes
on "Seat belts“ (Y page 46) and "Air bags"
(Y page 50). There you can also find infor-
mation on the correct seat position. Seat belts
Introduction Seat belts are the most effective means of
restricting the movement of vehicle occu-
pants in the event of an accident or the vehi-
cle rolling over. This reduces the risk of vehi- cle occupants coming into contact with parts
of the vehicle interior or being ejected from
the vehicle. Furthermore, the seat belt helps
to keep the vehicle occupant in the best posi- tion in relation to the air bag.
The seat belt system comprises:
R Seat belts
R Emergency Tensioning Devices for the
front seat belts and the outer seat belts in
the rear
R Seat belt force limiters for the front seat
belts and the outer seat belts in the rear If the seat belt is pulled out of the belt outlet
quickly or with a jerky movement, the belt
retractor locks. The belt strap cannot be
extracted any further.
The Emergency Tensioning Device tightens
the seat belt in an accident, pulling the belt
close against the body. However it does not
pull the vehicle occupant back in the directionof the backrest.
The Emergency Tensioning Device does not
correct an incorrect seat position or the rout-
ing of an incorrectly fastened seat belt.
When triggered, a seat belt force limiter helps
to reduce the force exerted by the seat belt on the vehicle occupant.
The seat belt force limiters for the front seats
are synchronized with the front air bags,
which absorb part of the deceleration force.
This can reduce the force exerted on the vehi-
cle occupants during an accident.
! If the front-passenger seat is unoccupied,
do not insert the belt tongue into the buckle of the front-passenger seat. This may oth-
erwise lead to the triggering of the Emer-
gency Tensioning Device in the event of anaccident, which will then need to be
replaced.
Important safety notes The use of seat belts and child restraint sys-
tems is required by law in:
R all 50 states
R the U.S. territories
R the District of Columbia
R all Canadian provinces
Even where this is not required by law, all
vehicle occupants should correctly fasten
their seat belts before starting the journey. G
WARNING
If the seat belt is incorrectly fastened, it can-
not protect as intended. Furthermore, an
incorrectly fastened seat belt can cause addi- tional injury, for example, in an accident, dur-
ing braking or when abruptly changing direc- 46
Occupant safetySafety

tion. This poses an increased risk of injury or
even fatal injury.
Make sure that all vehicle occupants are
seated properly with a correctly fastened seat belt. G
WARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder. G
WARNING
Persons under 5 ft (1.50 m) in heightcannot
fasten the seat belt correctly without an addi- tional suitable restraint system. If the seat
belt is incorrectly fastened, it cannot protect
as intended. Furthermore, an incorrectly fas-
tened seat belt can cause additional injury, for
example, in an accident, during braking or an
abrupt change of direction. This poses an
increased risk of injury or even fatal injury.
For this reason, always secure persons under
5 ft (1.50 m) in height in suitable restraint
systems.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height istraveling in the
vehicle:
R always secure the child in a child restraint
system suitable for this Mercedes-Benz
vehicle. The child restraint system must be appropriate to the age, weight and size of
the child
R always observe the instructions and safety
notes in the "Children in the vehicle" sec-
tion of this Operator's Manual (Y
page 64) in addition to the child
restraint system manufacturer's installa-
tion instructions
R be sure to observe the instructions and
safety notes on the "Occupant classifica-
tion system (OCS)" (Y page 53) G
WARNING
The seat belts may not perform their intended protective function if:
R they are damaged, modified, extremely
dirty, bleach or dyed
R the seat belt buckle is damaged or
extremely dirty
R the Emergency Tensioning Devices, belt
anchorages or inertia reels have been modi-
fied
Seat belts may sustain non-visible damage in an accident, e.g. due to glass splinters. Modi-
fied or damaged seat belts may tear or fail,
e.g. in an accident. Modified Emergency Ten-
sioning Devices could accidentally trigger or
fail to deploy when necessary. This poses an
increased risk of injury or even fatal injury.
Never modify the seat belts, Emergency Ten-
sioning Devices, belt anchorages or inertia
reels. Make sure that the seat belts are
undamaged, not worn out and clean. Follow-
ing an accident, have the seat belts checked
immediately at a qualified specialist work-
shop.
Only use seat belts that have been approved
for your vehicle by Mercedes-Benz. Any such
modifications could invalidate the vehicle's
general operating permit.
Proper use of the seat belts Observe the safety notes on the seat belt
(Y
page 46).
All vehicle occupants must be wearing the
seat belt correctly before beginning the jour-
ney. Also make sure that all vehicle occu-
pants are always wearing the seat belt cor-
rectly while the vehicle is in motion. Occupant safety
47Safety Z

The shoulder section of the seat belt must
always be routed across the center of the
shoulder. Adjust the belt outlet if necessary.
X To raise: slide the belt outlet upwards.
The belt outlet will engage in various posi-
tions.
X To lower: hold belt outlet release ?and
slide belt outlet downwards.
X Let go of belt outlet release ?in the
desired position and make sure that the
belt outlet engages.
All seat belts except the driver's seat belt are equipped with a special seat belt retractor tosecurely fasten child restraint systems in the
vehicle. Further information can be found
under "Special seat belt retractor"
(Y page 64).
Releasing seat belts !
Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt. Dam- aged seat belts can no longer fulfill their
protective function and must be replaced.
Visit a qualified specialist workshop. X
Press release button :, hold belt
tongue ;firmly and guide it back towards
belt outlet =.
Seat belt adjustment The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. This
function adjusts the driver's and front-
passenger seat belt to the upper body of the
occupants.
The belt strap is tightened slightly when:
R the belt tongue is engaged in the buckle
and
R the ignition is switched on
The seat-belt adjustment will apply a certain
retraction force if any slack is detected
between the vehicle occupant and the seat
belt. Do not hold on to the seat belt tightly
while it is adjusting.
You can switch the seat-belt adjustment on
and off in the on-board computer
(Y page 241).
Belt warning for the driver and front
passenger The
7 seat belt warning lamp in the instru-
ment cluster is a reminder that all vehicle
occupants must wear their seat belts. It may
light up continuously or flash. In addition,
there may be a warning tone.
Regardless of whether the driver's seat belt
has already been fastened, the 7seat belt
warning lamp lights up for six seconds each
time the engine is started. If, after
six seconds, the driver or front-passenger
seat belt has not been fastened and the doors
are closed, the 7seat belt warning lamp
lights up. As soon as the driver's and front-
passenger seat belts are fastened or a front
door is opened again, the 7seat belt
warning lamp goes out.
If the driver's seat belt is not fastened after
the engine is started, an additional warning
tone will sound. This warning tone stops after Occupant safety
49Safety Z

six seconds or when the driver's seat belt is
fastened.
If the vehicle's speed exceeds 15 mph
(25 km/h) once and the driver's and front-
passenger seat belts are not fastened, a
warning tone sounds. A warning tone also
sounds with increasing intensity for
60 seconds or until the driver or front
passenger have fastened their seat belts.
If the driver or front passenger unfasten their seat belts during the journey, the seat belt
warning is activated again.
i For more information on the
7seat
belt warning lamp, see "Warning and indi-
cator lamps in the instrument cluster, seat
belts" (Y page 274). Air bags
Introduction The installation point of an air bag can be rec-
ognized by the AIR BAG symbol.
An air bag complements the correctly fas-
tened seat belt. It is no substitute for the seat
belt. The air bag provides additional protec-
tion in applicable accident situations.
Not all air bags are deployed in an accident.
The different air bag systems function inde-
pendently from one another (Y page 59).
However, no system available today can com- pletely eliminate injuries and fatalities.
It is also not possible to rule out a risk of injury
caused by an air bag due to the high speed at which the air bag must be deployed.
Important safety notes G
WARNING
If you do not sit in the correct seat position,
the air bag cannot protect as intended and
could even cause additional injury when
deployed. This poses an increased risk of
injury or even fatal injury. To avoid hazardous situations, always make
sure that all of the vehicle's occupants:
R have fastened their seat belts correctly,
including pregnant women
R are sitting correctly and maintain the great-
est possible distance to the air bags
R follow the following instructions
Always make sure that there are no objects
between the air bag and the vehicle's occu-
pants.
R Adjust the seats properly before beginning
your journey. Always make sure that the
seat is in an almost upright position. The
center of the head restraint must support
the head at about eye level.
R Move the driver's and front-passenger
seats as far back as possible. The driver's
seat position must allow the vehicle to be
driven safely.
R Only hold the steering wheel on the out-
side. This allows the air bag to be fully
deployed.
R Always lean against the backrest while driv-
ing. Do not lean forwards or lean against
the door or side window. You may other-
wise be in the deployment area of the air
bags.
R Always keep your feet in the footwell in
front of the seat. Do not put your feet on the
dashboard, for example. Your feet may oth- erwise be in the deployment area of the air
bag.
R For this reason, always secure persons less
than 5 ft (1.50 m) tall in suitable restraint
systems. Up to this height, the seat belt
cannot be worn correctly.
If a child is traveling in your vehicle, also
observe the following notes:
R Always secure children under twelve years
of age and less than 5 ft (1.50 m)tall in
suitable child restraint systems.
R Child restraint systems should be installed
on the rear seats. 50
Occupant safetySafety

R
Only secure a child in a rearward-facing
child restraint system on the front-
passenger seat when the front-passenger
front air bag is deactivated. If the
PASSENGER AIR BAG OFF indicator lamp is permanently lit, the front-passenger front
air bag is deactivated (Y page 45).
R Always observe the instructions and safety
notes on the "Occupant Classification Sys- tem (OCS)" (Y page 53) and on "Children
in the vehicle" (Y page 64) in addition to
the child restraint system manufacturer's
installation instructions.
Objects in the vehicle interior may pre-
vent an air bag from functioning correctly.
Before starting your journey and to avoid risks
resulting from the speed of the air bag as it
deploys, make sure that:
R there are no people, animals or objects
between the vehicle occupants and an air
bag.
R there are no objects between the seat, door
and B-pillar.
R no hard objects, e.g. coat hangers, hang on
the grab handles or coat hooks.
R no accessories, such as cup holders, are
attached to the vehicle within the deploy-
ment area of an air bag, e.g. to doors, side
windows, rear side trim or side walls.
R no heavy, sharp-edged or fragile objects
are in the pockets of your clothing. Store
such objects in a suitable place. G
WARNING
If you modify the air bag cover or affix objects
such as stickers to it, the air bag can no longer function correctly. There is an increased risk
of injury.
Never modify an air bag cover or affix objectsto it. G
WARNING
Sensors to control the air bags are located in the doors. Modifications or work not per-
formed correctly to the doors or door panel-
ing, as well as damaged doors, can lead to the function of the sensors being impaired. The air
bags might therefore not function properly
any more. Consequently, the air bags cannot
protect vehicle occupants as they are
designed to do. There is an increased risk of
injury.
Never modify the doors or parts of the doors.
Always have work on the doors or door pan-
eling carried out at a qualified specialist work- shop.
Front air bags Driver's air bag
:deploys in front of the
steering wheel. Front-passenger front air
bag ;deploys in front of and above the glove
box.
When deployed, the front air bags offer addi- tional head and thorax protection for the
occupants in the front seats.
The PASSENGER AIR BAG OFF indicator lamp
informs you about the status of the front-
passenger front air bag (Y page 45).
The front-passenger front air bag will only
deploy if:
R the system, based on the OCS weight sen-
sor readings, detects that the front-
passenger seat is occupied (Y page 53)
R the PASSENGER AIR BAG OFF indicator
lamp is not lit (Y page 54)
R the restraint system control unit predicts a
high accident severity Occupant safety
51Safety Z