sensor MERCEDES-BENZ CLS 2016 Owner's Guide

i Canada only: This device co mplie s wit h
RSS -210 of In dustry Canada. Operation is
subject to the foll owin g two conditions:
1. This device may not cause harmful inter-
ference, and
2. This device must accept any interference
receive d, inc ludin g interference that may
cause undesired operation of the device.
Removal, tampering, or altering of the device
will void any warranties, and is not permitte d.
Do not tamper wit h, alter, or use in any non-
approved way.
Any unauthorized mod ific ation to th is device
could void the user's authority to operate the
equipm ent.
Radar sensors The Active Blin d Spo t Assist radar sensors are
integrated into the front and rear bumpers and
behind a cover in the radiator trim. Make sure
that the bumpers and the cover in the radiator
grill are free of dirt , ice or slush. The rear sensors
must not be covered, for example by cyc le racks
or overhanging cargo. Fol lowin g a severe impact
or in the event of damage to the bumpers, have
the function of the radar sensors checked at a
qualif ied spec ialist worksho p. Active Blin d Spo t
Assist may other wise no longer work properly.
Monitoring area
G WAR NING
Active Blin d Spot Assist does not detect all
traff ic situations and road users. There is a
risk of an acc iden t.
Alwa ys make sure that there is suff icie nt dis-
tance on the side for other traff ic or obstacles. The detection of obstacles can be impaired in
the case of: R
there is dirt on the sensors or anything else
covering the sensors R
poor vis ibilit y, e.g. due to rain, snow or spray
Vehicles in the monitoring range are then not
indicated or indicated wit h a delay.
Active Blin d Spot Assist may not detect narrow
vehicles, such as motorcycles or bicycles, or
may only detect them too late.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may be
indicated, especially if the vehicles are not driv-
ing in the midd le of their lane. This may be the
case if there are vehicles at the edge of their
lane.
Due to the nature of the system: R
warnings may be issued in error when driving
close to crash barriers or similar solid lane
borders. R
the warning is canceled when driving for an
extended period next to long vehicles, such as
trucks.Driving systems 191
Driving and parking Z

R
ESP ®
is switched off.R
a loss of tire pressure or a defective tire is
detected.
Switching on Active Blind Spot Assist X
Make sure that Active Blind Spot Assist
( Y
page 205) is activated in the on-board
computer. X
Turn the SmartKey to position 2 in the ignition
lock.
Warning lamps C in the exterior mirrors light
up red for approximately 1.5 seconds an d
then turn yellow.
Active Lane Keeping Assist General notes
Active Lane Keeping Assist monitors the area in
front of your vehicle by means of multifunction
camera C at the top of the windshield. Various
different areas to the front, rear and side of your
vehicle are also monitored with the aid of the
radar sensor system. Active Lane Keeping
Assist detects lane markings on the road and
can warn you before you leave your lane unin-
tentionally. If you do not react to the warning, a
lane-correcting application of the brakes can
bring the vehicle back into the original lane.
This function is available in the range between
40 mph and 120 mph (60 km/h and 200 km/h).
For Active Lane Keeping Assist to assist you
when driving, the radar sensor system must be
operational
Important safety notes
If you fail to adapt your driving style, Active Lane
Keeping Assist can neither reduce the risk of
accident nor override the laws of physics. Active
Lane Keeping Assist cannot take account of
road and weather conditions. It may not recog- nize traffic situations. Active Lane Keeping
Assist is only an aid. You are responsible for the
distance to the vehicle in front, for vehicle
speed, for braking in good time and for staying in
you r lane.
Acti
ve Lane Keeping Assist cannot continuously
keep your vehicle in its lane.
G WARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can: R
give an unnecessary warning and then
make a course-correcting brake application
to the vehicle R
not give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you. Ter-
minate the intervention in a non-critical driv-
ing situation.
The system may be impaired or may not function
if: R
there is poor visibility, e.g. due to insufficient
illumination of the road, or due to snow, rain,
fog or spray R
there is glare, e.g. from oncoming traffic, the
sun or reflections (e.g. when the road surface
is wet) R
the windshield is dirty, fogged up, damaged or
covered, for instance by a sticker, in the vicin-
ity of the camera R
the radar sensors in the front or rear bumpers
or the radiator trim are dirty, e.g. obscured by
snow R
there are no, several or unclear lane markings
for a lane, e.g. in areas with road construction
work R
the lane markings are worn away, dark or cov-
e red up, e.g. by dirt or snow R
the distance to the vehicle in front is too small
and the lane markings thus cannot be detec-
ted R
the lane markings change quickly, e.g. lanes
branch off, cross one another or mergeDriving system s 193
Dr ivi ng an d parking Z

X
Press the d or c button to select the
Display Unit Speed-/Odometer function.
You will see the selected setting: km or miles .X
Press the v button to save the setting.
The selected unit of measurement for distance
applies to: R
the digital speedometer in the Trip menuR
the odometer and trip odometer R
the trip computer R
the current consumption and the range R
the navigation instructions in the Navi menuR
cruise control R
DISTRONIC PLUS R
ASSYST PLUS service interval display
Selecting permanent display The Permanent Display: function allows you
to choose whether the multifunction display
always shows the outside temperature or the
speed.
The speed display is inverse to the speedome-
ter. X
Press the Y or e button on the steering
wheel to select the Sett. menu.X
Press the d or c button to select the
Instrument Cluster submenu.X
Press v to confirm.X
Press the d or c button to select the
Permanent Display: function.
The current setting, Outside Temperature
or Speedometer [km/h] / Speedometer
[mph] , appears.X
Press the v button to save the setting.
Lights
Setting the brightness of the instrument
cluster lighting and switches
The lighting in the instrument cluster, in the dis-
plays and the controls in the vehicle interior can
be adjusted with the Brightness Display/
Switches: function.X
Press the Y or e button on the steering
wheel to select the Sett. menu.X
Press the d or c button to select the
Lights submenu.X
Press v to confirm. X
Press the d or c button to select the
Brightness Display/Switches: function.
The current setting appears. X
Press v to confirm. X
Press the d or c button to adjust the
brightness to any level from Level 1 to
Level 5 (bright). X
Press the v or 8 button to save the
setting.
If the light switch is set to the X , ` or
X position, the brightness is dependent
upon the brightness of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of the
multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated.
Switching the daytime running lamps on/
off X
Press the Y or e button on the steering
wheel to select the Sett. menu.X
Press the d or c button to select the
Lights submenu. X
Press v to confirm. X
Press the d or c button to select the
Day. Run. Lights function.
If the Day. Run. Lights function has been
switched on, the multifunction display shows
the cone of light and the

Display messages
Possible causes/consequences and P Solutions
' (USA
only)
M ( Canada
only)
Check Brake Fluid
Level There is no t enough brak e flui d in th e brak e fluid reservoir .
In addition , th e ' (US A only) or M (Canada only) warning lamp
lights up in th e instrumen t cluste r and a warning tone sounds.
G WARNIN G
The braking effec t may be impaired.
There is a ris k of an accident.X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions. Do no t continu e drivin g
under any circumstances. X
Secur e th e vehicl e against rollin g away ( Y
page 146).X
Consult a qualified specialist workshop .X
Do no t add brak e fluid . This does no t correc t th e malfunction .
& Check Brake Pad Wea r The brak e pads/linings hav e reached their wear limit.X
Visit a qualified specialist workshop .
S mbrace Inoperative On e or mor e main features of th e mbrace system are malfunctioning .X
Visit a qualified specialist workshop .
Collision Preven ‐
tio n Assist Plu s
Currently Unavaila‐
ble See Operator' s
Manual COLLISION PREVENTION ASSIST PLU S is temporarily no t operational.
Possibl e causes are: R
th e radar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti c radiation emitted by nearby TV or radi o station s or
other source s of electromagneti c radiation .R
th e system is outside th e operating temperature range.R
th e on-boar d voltag e is to o low.
Whe n th e causes state d abov e no longer apply, th e display message
disappears.
COLLISION PREVENTION ASSIST PLU S is operational again .
If th e display message does no t disappear :X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 146).X
Restart th e engine.
Collision Preven ‐
tio n Assist Plu s
Inoperative COLLISION PREVENTION ASSIST PLU S is temporarily inoperative due
to a malfunction . Adaptive Brake Assis t may also hav e failed.X
Visit a qualified specialist workshop .
PRE-SAFE
Inoperative See
Operator' s Manual Importan t function s of PRE-SAF E ®
hav e failed. Al l other occupant
safet y systems , e.g. air bags , remain available.X
Visit a qualified specialist workshop .Display messages 21 5
On-board computer and displays Z

Display messages
Possible causes/consequences and P Solutions
PRE-SAFE
Functions Currently
Limite d See Opera‐
tor's Manual PRE ‑ S AF E ®
PLU S or PRE ‑ SAFE ®
Brake is temporarily inoperative.
Possibl e causes are: R
function is impaire d due to heav y rain or snow.R
th e radar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti c radiation emitted by nearby TV or radi o station s or
other source s of electromagneti c radiation .R
Mercedes-AMG vehicles: ES P ®
is deactivatedR
th e system is outside th e operating temperature range.R
th e on-boar d voltag e is to o low.
Whe n th e causes state d abov e no longer apply, th e display message
disappears.
PRE ‑ S AF E ®
PLU S and PRE ‑ S AF E ®
Brake are operational again .
If th e display message does no t disappear :X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 146).X
Restart th e engine.X
Mercedes-AMG vehicles: switch ES P ®
on again ( Y
page 71) .
PRE-SAFE
Functions Limite d
See Operator' s Man ‐
ual PRE ‑ S AF E ®
PLU S or PRE ‑ SAFE ®
Brake is unavailable due to a mal-
function . BA S PLU S wit h Cross-Traffic Assis t may also hav e failed.X
Visit a qualified specialist workshop .216
Display messages
On-board computer and displays

Display messages
Possible causes/consequences and P Solutions
Radar Sensor s Dirty
See Operator' s Man ‐
ual At least on e of th e followin g drivin g systems or drivin g safet y systems
is temporarily restricted or inoperative: R
COLLISION PREVENTION ASSIST PLU SR
PRE-SAF E ®
BrakeR
PRE-SAF E ®
PLU SR
Active Lan e Keepin g Assis tR
Active Blind Spot Assis tR
DISTRONI C PLU S wit h Steering Assis t and Stop&Go Pilo t
If th e radar sensor system in fron t is dirty, Active Blind Spot Assis t will
no t perfor m a course-correcting brak e application .
Possibl e causes are: R
th e sensor s in th e radiato r trim and/o r in th e bumpers are dirtyR
th e function of th e drivin g system or drivin g safet y system is
impaire d due to heav y rain or snow
A warning tone also sounds.
Whe n th e causes state d abov e no longer apply, th e display message
disappears. Al l drivin g systems or drivin g safet y systems are operative
again .
If th e display message does no t disappear :X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 146).X
Switc h off th e engine.X
Clean th e sensor s in th e followin g location s ( Y
page 282):R
in th e radiato r trimR
in th e fron t bumper R
in th e rear bumper, particularly in th e middle of th e rear bumperX
Restart th e engine.
The display message disappears.
u SRS Malfunction Ser ‐
vic e Required The restrain t system is faulty. The u warning lamp also lights up in
th e instrumen t cluster.
G WARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately.
Observ e th e additional information on restrain t systems ( Y
page 41).Display messages 21 7
On-board computer and displays Z

Lights Display messages
Possible causes/consequences and P Solutions
I Check Left Low Beam
(example) The corresponding bulb is faulty. X
Visit a qualified specialist workshop.
i LED light sources: the display message for the corresponding
lamp only appears when all the LEDs in the lamp have failed.
I Active Headlamps
Inoperative The active light function is faulty. X
Visit a qualified specialist workshop.
I Malfunction See
Operator's Manual The exterior lighting is defective. X
Visit a qualified specialist workshop.
I Auto Lamp Function
Inoperative The light sensor is defective. X
Visit a qualified specialist workshop.
I Switch Off Lights You leave the vehicle and the lights are switched on. A warning tone
also sounds. X
Turn the light switch to position X .
Adaptive Highbeam
Assist Currently
Unavailable See
Operator's Manual Adaptive Highbeam Assist is deactivated and temporarily inoperative.
Possible causes are: R
the windshield in the camera's field of vision is dirty. R
visibility is impaired due to heavy rain, snow or fog. X
Clean the windshield.
If the system detects that the camera is fully operational again, the
Adaptive Highbeam Assist Now Available message is displayed.
Adaptive Highbeam Assist is operational again.
Adaptive Highbeam
Assist Inoperative Adaptive Highbeam Assist is faulty. X
Visit a qualified specialist workshop. Display messages 221
On-board computer and displays Z

Display messages
Possible causes/consequences and P Solutions
Lan e Keepin g Assist
Currently Unavaila‐
ble See Operator' s
Manual or A ctive Lan e
Keepin g Assist Cur ‐
rently Unavailable
See Operator' s Man ‐
ual Lan e Keepin g Assis t or Active Lan e Keepin g Assis t is deactivated and
temporarily inoperative.
Possibl e causes are: R
th e windshield in th e camera' s field of vision is dirty.R
visibilit y is impaire d due to heav y rain , snow or fog .R
there hav e been no lan e marking s for an extended period.R
th e lan e marking s are worn, dark or covered, e.g. by dir t or snow.
Whe n th e causes state d abov e no longer apply, th e display message
disappears.
Lan e Keepin g Assis t or Active Lan e Keepin g Assis t is operational
again .
If th e display message does no t disappear :X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 146).X
Clean th e windshield.
Lan e Keepin g Assist
Inoperative or A ctive
Lan e Keepin g Assist
Inoperative Lan e Keepin g Assis t or Active Lan e Keepin g Assis t is defective.X
Visit a qualified specialist workshop .
Blind Spo t Assist
Currently Unavaila‐
ble See Operator' s
Manual or A ctive
Blind Spo t Assist
Currently Unavaila‐
ble See Operator' s
Manual Blind Spot Assis t or Active Blind Spot Assis t is temporarily inoperative.
Possibl e causes are: R
th e radar sensor system is outside th e operating temperature
range. R
th e radar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti c radiation emitted by nearby TV or radi o station s or
other source s of electromagneti c radiation .
The yellow c indicator lamp s also ligh t up in th e exterio r mirrors.
Whe n th e causes state d abov e no longer apply, th e display message
disappears.
Blind Spot Assis t or Active Blind Spot Assis t is operational again .
If th e display message does no t disappear :X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 146).X
Restart th e engine.
Blind Spo t Assist
Inoperative or A ctive
Blind Spo t Assist
Inoperative Blind Spot Assis t or Active Blind Spot Assis t is defective.
The yellow c indicator lamp s also ligh t up in th e exterio r mirrors.X
Visit a qualified specialist workshop .226
Display messages
On-board computer and displays

Display messages
Possible causes/consequences and P Solutions
DISTRONIC PLU S Cur ‐
rently Unavailable
See Operator' s Man ‐
ual DISTRONI C PLU S is temporarily inoperative.
Steering Assis t and Stop&Go Pilo t are temporarily inoperative.
Possibl e causes are: R
th e radar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti c radiation emitted by nearby TV or radi o station s or
other source s of electromagneti c radiation .R
th e system is outside th e operating temperature range.R
th e on-boar d voltag e is to o low.
A warning tone also sounds.
Whe n th e causes state d abov e no longer apply, th e display message
disappears.
DISTRONI C PLU S is operational again .
If th e display message does no t disappear :X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 146).X
Restart th e engine.
DISTRONIC PLU S Inop‐
erativ e DISTRONI C PLU S is defective.
The followin g may hav e also failed:R
BA S PLU S wit h Cross-Traffic Assis tR
PRE-SAF E ®
BrakeR
Steering Assis t and Stop&Go Pilo t
A warning tone also sounds. X
Visit a qualified specialist workshop .
DISTRONIC PLU S Sus ‐
pended You hav e depressed th e accelerato r pedal . DISTRONI C PLU S is no
longer controllin g th e speed of th e vehicle.X
Remove your foo t from th e accelerato r pedal .
DISTRONIC PLU S
- - - mph An activation condition for DISTRONI C PLU S is no t fulfilled .X
Chec k th e activation condition s for DISTRONI C PLU S ( Y
page 155).228
Display messages
On-board computer and displays

Display messages
Possible causes/consequences and P Solutions
Check
Tires The tire pressur e in on e or mor e tires has dropped significantly. The
whee l position is shown in th e multifunction display.
A warning tone also sounds.
G WARNIN G
Tir e pressures that are to o low pos e th e followin g hazards :R
they may burst, especially as th e load and vehicl e speed increase.R
they may wear excessivel y and/o r unevenly, whic h may greatl y
impair tire traction .R
th e drivin g characteristics , as well as steering and braking , may be
greatl y impaired.
There is a ris k of an accident.X
Stop th e vehicl e without making any sudden steering or braking
maneuvers . Pay attention to th e traffic condition s as you do so.X
Secur e th e vehicl e against rollin g away ( Y
page 146).X
Chec k th e tires and , if necessary, follow th e instruction s for a flat
tire ( Y
page 287). X
Chec k th e tire pressur e ( Y
page 308).X
If necessary, correc t th e tire pressure.
Warnin g
Tir e Malfunction The tire pressur e in on e or mor e tires has dropped suddenly. The whee l
position is shown in th e multifunction display.
G WARNIN G
Drivin g wit h a flat tire poses a ris k of th e followin g hazards :R
a flat tire affects th e abilit y to steer or brak e th e vehicle.R
you could lose control of th e vehicle.R
continued drivin g wit h a flat tire will caus e excessive heat build-up
and possibl y a fire.
There is a ris k of an accident.X
Stop th e vehicl e without making any sudden steering or braking
maneuvers . Pay attention to th e traffic condition s as you do so.X
Secur e th e vehicl e against rollin g away ( Y
page 146).X
Chec k th e tires and , if necessary, follow th e instruction s for a flat
tire ( Y
page 287).
Tir e Press. Monito r
Currently Unavaila‐
ble Becaus e there is interferenc e from a stron g source of radi o waves, no
signals from th e tire pressur e sensor s are detected. The tire pressur e
monitor is temporarily malfunctioning .X
Drive on .
The tire pressur e monitor restarts automatically as soo n as th e
problem has been resolved.
TirePress . Sen ‐
sor(s) Missin g There is no signal from th e tire pressur e sensor of on e or several
wheels. The pressur e of th e affecte d tire does no t appear in th e mul-
tifunction display. X
Hav e th e fault y tire pressur e sensor replace d at a qualified special -
ist workshop . Display messages 23 1
On-board computer and displays Z