2018 MERCEDES-BENZ CLS lights

selection remains stored even if you remove the
SmartKey from the ignition lock.
Setting raised level X
Start the engine.
If indicator lamp D is not lit:X
Press the C button.
Indicator lamp D lights up. The vehicle height
is adjusted to raised level.
The Vehicle
Rising message appears in the
display.
The "Raised level" setting is canceled if you: R
drive at a speed over approximately 75 mph
(120 km/h) R
drive for approximately three minutes at a
speed over 50 mph (80 km/h)
The "Raised level" remains active when you are
not driving within these speed ranges.
Setting the normal level X
Start the engine.
If indicator lamp D is lit:X
Press button C .
Indicator lamp D goes out. The vehicle is
adjusted to normal level.
Suspension tuning
General notes
The electronically controlled damping system
works continuously. This improves driving
safety and ride comfort. The damping is tuned individually to each wheel
and depends on: R
your driving style, e.g. sporty R
the road surface condition, e.g. bumps R
your individual selection, i.e. sports or com-
fort
Your selection remains stored even if you
remove the SmartKey from the ignition lock.
Sports tuning
The firmer suspension tuning in Sport mode
ensures even better contact with the road.
Select this mode when employing a sporty driv-
ing style, e.g. on winding country roads. X
Press button C .
Indicator lamp D lights up. Sports suspen-
sion tuning is selected.
The AIRMATIC
SPORT message appears in the
multifunction display.
Comfort tuning
In comfort mode, the driving characteristics of
your vehicle are more comfortable. Therefore,
select this mode if you favor a more comfortable
driving style. Select comfort mode also when
driving fast on straight roads, e.g. on straight
stretches of highway.160
Driving systems
Driving and parking

This indicates that you have now reached the
minimum distance.
Deactivating/activating PARKTRONIC
C
Indicator lampD
Deactivates/activates PARKTRONIC If indicator lamp D lights up, PARKTRONIC is
deactivated. Active Parking Assist is then also
deactivated.
i PARKTRONIC is automatically activated
when you turn the SmartKey to position 2 in
the ignition lock.
Problems with PARKTRONIC Problem
Possible causes/consequences and P Solutions
Only the red segments in
the PARKTRONIC warn-
ing displays are lit. You
also hear a warning tone
for approximately two
seconds.
PARKTRONIC is then
deactivated and the indi-
cator lamp on the
PARKTRONIC button
lights up. PARKTRONIC has malfunctioned and has switched off. X
If problems persist, have PARKTRONIC checked at a qualified spe-
cialist workshop.
Only the red segments in
the PARKTRONIC warn-
ing displays are lit.
PARKTRONIC is then
deactivated. The PARKTRONIC sensors are dirty or there is interference. X
Clean the PARKTRONIC sensors ( Y
page 274).X
Switch the ignition back on.
The problem may be caused by an external source of radio or ultra-
sound waves. X
See if PARKTRONIC functions in a different location.
Active Parking Assist
General notes
Active Parking Assist is an electronic parking aid
with ultrasound. It measures the road on both
sides of the vehicle. A parking symbol indicates
a suitable parking space. Active steering inter-
vention and brake application can assist you during parking. You may also use PARKTRONIC
( Y
page 163).
Important safety notes
Active Parking Assist is merely an aid. It is not a
replacement for your attention to your immedi-
ate surroundings. You are always responsibleDriving systems 165
Driving and parking Z

R
you switch on th e tur n signals. In this event ,
th e warnings are suppressed for a certain
period of time. R
a drivin g safet y system intervenes, suc h as
ABS, BA S or ES P ®
.
Adaptive Whe n Adaptive is selected, no warnin g vibra-
tion occur s if:R
you switch on th e tur n signals. In this event ,
th e warnings are suppressed for a certain
period of time. R
a drivin g safet y system intervenes, e.g. ABS,
BA S or ES P ®
.R
you accelerate hard, e.g. kickdown .R
you brak e hard.R
you steer actively, e.g. swerve to avoid an
obstacle or chang e lanes quickly.R
you cut th e corner on a shar p bend.
In order that you are warned only when neces-
sar y and in goo d time if you cross th e lan e mark-
ing, th e system recognizes certain condition s
and warn s you accordingly.
The warnin g vibration occur s earlier if:R
you approac h th e outer lan e marking on a
bend. R
th e roa d has ver y wide lanes, e.g. a highway.R
th e system recognizes soli d lan e markings.
The warnin g vibration occur s later if:R
th e roa d has narrow lanes.R
you cut th e corner on a bend.
Active Driving Assistance package
Gene ra l notesThe Active Drivin g Assistance packag e consist s
of DISTRONI C PLU S ( Y
page 149), Active Blind
Spot Assis t ( Y
page 182) and Active Lan e Keep-
in g Assis t ( Y
page 184).
Active Blind Sp ot Assist
Genera l notes
Active Blind Spot Assis t uses a rada r sensor
system, pointe d toward th e rear of th e vehicle,
to monitor th e area to th e side s of th e vehicl e
whic h th e driver is unable to see . A warnin g lamp
lights up in th e exterio r mirror s and draw s your
attention to vehicles detecte d in th e monitore d area . If you then switch on th e correspondin g
tur n signal to chang e lane, you will also receiv e
an optica l and audibl e warning. If a ris k of lateral
collision is detected, corrective brakin g may
help you avoid a collision . Befor e a course-cor-
recting brak e application , Active Blind Spot
Assis t evaluates th e spac e in th e direction of
travel and at th e side s of th e vehicle. Fo r this,
Active Blind Spot Assis t uses th e forward-facing
rada r sensors.
Active Blind Spot Assis t support s you from a
speed of approximately 20 mph (30 km/h).
Important safety notes Active Blind Spot Assis t is only an aid and is no t
a substitut e for attentive driving.
G WARNIN G
Active Blind Spot Assis t does no t reac t to :R
vehicles overtake n to o closely on th e side ,
placin g them in th e blin d spo t areaR
vehicles whic h approac h wit h a larg e speed
differential and overtake your vehicl e
As a result , Active Blind Spot Assis t may nei-
ther giv e warnings no r interven e in suc h sit -
uations. There is a ris k of an accident.
Always observ e th e traffic condition s care-
fully, and maintai n a saf e lateral distance.
i US A only:
This device has been approve d by th e FCC as
a "Vehicular Radar System". The rada r sensor
is intended for use in an automotive rada r
system only. Removing, tamperin g with, or
altering th e device will voi d any warranties,
and is no t permitte d by th e FCC. Do no t tam -
per with, alter, or use in any non-approve d
way.
An y unauthorize d modification to this device
could voi d th e user’s authorit y to operate th e
equipment.
i Canada only: This device complies wit h
RSS-210 of Industry Canada. Operation is
subjec t to th e followin g tw o conditions:
1. This device may no t caus e harmful inter-
ference , and
2. This device mus t accept any interferenc e
received, includin g interferenc e that may
caus e und esire d operation of th e d
evice .
Removal, tampering, or altering of th e device
will voi d any warranties, and is no t permitted.182
Driving systems
Driving and parking

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

Deactivating delayed switch-off of the exterior
lighting temporarily: X
Before leaving the vehicle, turn the SmartKey
to position 0 in the ignition lock.X
Turn the SmartKey to position 2 in the ignition
lock.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the engine.
If you have activated the Surround Lighting
function and the light switch is set to the X
position, the following functions are activated
when it is dark: R
surround lighting: the exterior lighting
remains lit for 40 seconds af ter unlocking
with the SmartKey. If you start the engine, the
surround lighting is switched off and auto-
matic headlamp mode is activated
( Y
page 105). R
exterior lighting delayed switch-off: the
exterior lighting remains lit for 60 seconds
after the engine is switched off. If you close all
the doors and the trunk lid/tailgate, the exte-
rior lighting goes off after 15 second s.
i Depending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the follow-
ing light up: R
Parking lamps R
Side marker lamps R
Surround lighting in the exterior mirrors
Activating/deactivating the interior light-
ing delayed switch-off
If you activate the Light. Delay function, the
interior lighting remains on for 20 second sa fter
you remove the SmartKey from the ignition lock. 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
Light. Delay function.
When the Light. Delay function is activa-
ted, the vehicle interior is displayed in orange
in the multifunction display. X
Press the v button to save the setting. Vehicle Activating/deactivating the automatic
door locking mechanism 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
Vehicle submenu. X
Press v to confirm. X
Press the d or c button to select the
Auto. Door Locks function.
If the Auto. Door Locks function is switched
on, the multifunction display shows the vehi-
cle's doors in orange. X
Press the v button to save the setting.
If you activate the Auto.
Door Locks function,
the vehicle is centrally locked above a speed of
around 9 mph (15 km/h).
For further information on the automatic locking
feature, see ( Y
page 82).
Activating/deactivating the acoustic
locking verification signal If you switch on the Acoustic Lock function, an
acoustic signal sounds when you lock the vehi-
cle. 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
Vehicle submenu. X
Press v to confirm. X
Press the d or c button to select the
Acoustic Lock function.
If the Acoustic Lock function is activated,
the 7 symbol in the multifunction display
lights up orange. X
Press the v button to save the setting.
Comfort
Activating/deactivating the EASY-
ENTRY/EXIT feature
G WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants – particularly children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one hasMenus and submenus 199
On-board computer and displays Z

any body parts in the sweep of the steering
wheel.
If somebody becomes trapped: R
press one of the memory function position
buttons, or R
move the switch for steering wheel adjust-
ment in the opposite direction to that in
which the steering wheel is moving.
The adjustment process is stopped. 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
Convenience submenu.X
Press v to confirm.X
Using d or c , select the Easy Entry/
Exit function.
If the Easy Entry/Exit function is activated,
the vehicle steering wheel is displayed in
orange in the multifunction display. X
Press the v button to save the setting.
Further information on the EASY-ENTRY/EXIT
feature ( Y
page 100).
Switching the seat belt adjustment 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
Convenience submenu.X
Press v to confirm.X
Press the d or c button to select the
Belt Adjustment function.
When the Belt Adjustment function is acti-
vated, the seat belt is displayed in orange in
the multifunction display. X
Press the v button to save the setting.
For further information on belt adjustment, see
( Y
page 45).
Switching the fold-in mirrors when lock-
ing feature on/off
This function is only available when the vehicle is
equipped with the electrical fold-in function.
When you switch on the Auto. Mirror Fold‐
ing function, the exterior mirrors are folded in
when the vehicle is locked. If you unlock the
vehicle and then open the driver's or front-
passenger door, the exterior mirrors fold out
again. X
Press the Y or e button on the steering
wheel to select the Settings menu.X
Press the d or c button to select the
Convenience submenu. X
Press v to confirm. X
Press the d or c button to select the
Auto. Mirror Folding function.
If the Auto. Mirror Folding function is
switched on, the multifunction display shows
the vehicle's exterior mirror in orange. X
Press the v button to save the setting.
If you have switched on the Auto. Mirror
Folding function and you fold in the exterior
mirrors by pressing button C , the exterior mir-
rors will not fold out automatically ( Y
page 101).
You can then only fold out the exterior mirrors
using button C .
Restoring the factory settings 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
Factory Setting submenu.X
Press v to confirm.
The Reset All Settings? function
appears. X
Press the d or c button to select No or
Yes . X
Press v to confirm the selection.
If you have selected Yes and confirmed, the
multifunction display shows a confirmation
message.
For safety reasons, the Day Lights function in
the Lights submenu is only reset if the vehicle
is stationary.200
Menus and submenus
On-board computer and displays

Display messages
Possible causes/consequences and P Solutions
' (US A only)
M (Canada only)
Check Brake Fluid
Level There is no t enough brak e fluid 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 141).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 radiationR
th e system is outside th e operating temperature rangeR
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 141).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 .206
Display messages
On-board computer and displays

Display messages
Possible causes/consequences and P Solutions
Radar Sensor s Dirty
See Operator' s Man ‐
ual The radar sensor system is malfunctioning .
Possibl e causes are: R
Dirt on sensor sR
Heavy rain or snow R
Whe n drivin g on inter-urban roads without traffic or infrastructure,
e.g. in desert-like area s
At least on e drivin g system or drivin g safet y system is malfunctioning
or is temporarily unavailable :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 .
A warning tone also sounds.
Once th e caus e of th e problem is no longer present, th e drivin g and
drive safet y systems will be available again . The display message dis-
appears.
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 141).X
Switc h off th e engine.X
Clean all sensor s ( Y
page 274).X
Restart th e engine.
The display message disappears.
u SRS Malfunction Ser ‐
vic e Required The restrain t system is malfunctioning . 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).208
Display messages
On-board computer and displays