2016 MERCEDES-BENZ CLS-Class Battery

ProblemPossible causes/consequences andMSolutions
The engine cannot be
started using the Smart-
Key.The on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary (Ypage 293).
or
XJump-start the vehicle (Ypage 294).
or
XConsult a qualified specialist workshop.
The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
There is interference from a powerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
Doors
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
Unlocking and opening doors from
the inside
You can open a door from inside the vehicle
even if it has been locked.
If the vehicle has previously been locked from
the outside, opening a door from the inside will
trigger the anti-theft alarm system. Switch off
the alarm (
Ypage 75).
You can only open the rear doors from inside the
vehicle if they are not secured by the child-proof
locks (
Ypage 63).
Doors81
Opening and closing
Z

Opening and closing
XTo open:pull remote operating switch for
trunk lid :until the trunk lid opens.
XTo close: press remote operating switch for
trunk lid :until the trunk lid is completely
closed.
You can open and close the trunk lid from the
driver's seat when the vehicle is stationary and
unlocked.
Unlocking the trunk
!
The trunk lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearance above the trunk lid.
If the trunk cannot be unlocked with the Smart-
Key or KEYLESS-GO, use the mechanical key.
If you use the mechanical key to unlock and
open the trunk lid, the anti-theft alarm system
will be triggered. Switch off the alarm
(
Ypage 75).
XTake the mechanical key out of the SmartKey
(Ypage 78).
XInsert the mechanical key into the trunk lid
lock as far as it will go.
XTurn the mechanical key from position 1
counter-clockwise as far as it will go to posi-
tion 2. Simultaneously pull the trunk lid han-
dle.
The trunk is unlocked.
XTurn the mechanical key back to position 1
and remove it.
XInsert the mechanical key into the SmartKey
(Ypage 78).
Trunk emergency release
You can open the trunk lid from inside the vehi-
cle with the emergency release button.
XPress emergency release button :briefly.
The trunk lid unlocks and opens.
The trunk lid can be unlocked and opened with
the trunk lid emergency release when the vehi-
cle is stationary or while driving.
The trunk lid emergency release does not open
the trunk lid if the battery is disconnected or
discharged.
Trunk lid emergency release light:
REmergency release button :flashes for
30 minutes after the trunk lid is opened.
REmergency release button :flashes for
60 minutes after the trunk lid is closed.
Side windows
Important safety notes
GWARNING
While opening the side windows, body parts
could become trapped between the side win-
dow and the door frame as the side window
moves. There is a risk of injury.
86Side windows
Opening and closing

XTurn the SmartKey to position1or 2in the
ignition lock (Ypage 127).
XTo switch on: press button:repeatedly
until the desired ventilation level is set.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iIf the battery voltage is too low, the seat
ventilation may switch off.
iYou can open the side windows and the slid-
ing sunroof using the "Convenience opening"
feature (
Ypage 88). The seat ventilation of
the driver's seat automatically switches to the
highest level.
Seats99
Seats, steering wheel and mirrors
Z

Problems with the seat heating or seat ventilation
ProblemPossible causes/consequences andMSolutions
The seat heating or seat
ventilation has switched
off prematurely or can-
not be switched on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating or seat
ventilation can be switched back on manually.
Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no SmartKey in
the ignition lock.
Adjusting the steering wheel electri-
cally
:To adjust the steering wheel height
;To adjust the steering wheel position (fore-
and-aft adjustment)
iFurther related subjects:
REASY-ENTRY/EXIT feature (Ypage 102)
RStoring settings (Ypage 105)
Steering wheel heating
Switching on/off
100Steering wheel
Seats, steering wheel and mirrors

Problems with the steering wheel heating
ProblemPossible causes/consequences andMSolutions
The steering wheel heat-
ing has switched off pre-
maturely or cannot be
switched on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the steering wheel heating
will switch back on automatically.
EASY-ENTRY/EXIT feature
Important safety notes
GWARNING
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 has
any body parts in the sweep of the steering
wheel.
Move the steering wheel adjustment lever if
there is a risk of entrapment by the steering
wheel. The adjustment process is stopped.
Vehicles with a memory function: if there is a
risk of becoming trapped by the steering wheel,
you can also one of the memory function posi-
tion buttons. The adjustment process is stop-
ped.
GWARNING
If children activate the EASY-ENTRY/EXIT fea-
ture, they can become trapped, particularly
when unattended. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off.
The EASY-ENTRY/EXIT feature makes getting in
and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board computer
(
Ypage 208).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active
The steering wheel swings upwards when you:
Rremove the SmartKey from the ignition lock
Rwith KEYLESS-GO: open the driver's door;
KEYLESS-GO must be in position 1
Rwith the SmartKey:open the driver's door;
the SmartKey is in position 0or 1must be in
the ignition lock (
Ypage 127).
iThe steering wheel only moves upwards if it
has not already reached the upper stop.
Position of the steering wheel for driv-
ing
The steering wheel is moved to the last selected position when:
Rthe driver's door is closed
Rwith KEYLESS-GO: you press the Start/Stop
button once
or
Rwith the SmartKey: you insert the SmartKey
into the ignition lock
When you close the driver's door with the igni-
tion switched on, the steering wheel is also
automatically moved to the previously set posi-
tion.
102Steering wheel
Seats, steering wheel and mirrors

Folding the exterior mirrors in or out
electrically
This function is only available in Canada.
XTurn theSmartKey to position 1or 2in th e
ignition loc k (Ypage 127).
XBriefly press butto n:.
Both exterio rmirror sfol din or out .
iMakesure that th eexterio rmirror sare
always folded out fully while driving .They
could otherwise vibrate .
iIf you are driving fasterthan 30 mph
(47 km/h), you can no longer fol din th eexte -
rio rmirrors.
Setting the exterior mirrors
If th ebattery has been disconnected or com-
pletely discharged, th eexterio rmirror smust be
reset .The exterio rmirror swill otherwise no t
fol din when you select th e"Fold in mirror swhen
locking" function in th eon-board computer
(
Ypage 208).
XTurn th eSmartKey to position 1in th eignition
loc k (Ypage 127).
XBriefly press butto n:.
Folding the exterior mirrors in or out
automatically
This function is only available in Canada.
If th e"Fold in mirror swhen locking" function is
activated in th eon-board computer
(
Ypage 208):
Rth eexterio rmirror sfol din automatically as
soo nas you loc kth evehicl efrom th eoutside .
Rtheexterio rmirror sfol dout again automati-
call yas soo nas you unlock th evehicl eand
then open th edriver' sor front-passenger
door .
iIf theexterio rmirror shave been folded in
manually, they do no tfol dout .
Exterior mirror pushed out of position
If an exterio rmirror has been pushed out of
position ,procee das follows :
XVehicles without electricall yfolding exte-
rior mirrors :mov eth eexterio rmirror int o
th ecorrect position manually.
XVehicles with electricall yfolding exterior
mirrors :press and hold mirror-foldin gbutto n
until you hear aclick and then th emirror s
engage in position (
Ypage 104).
The mirror housing is engage dagain and you
can adjust th eexterio rmirror sas usual
(
Ypage 103).
Automatic anti-glare mirrors
GWARNIN G
Electrolyte may escape if th eglass in an auto -
matic anti-glare mirror breaks .The electrolyt e
is harmful and causes irritation .It must no t
come int ocontact wit hyour skin, eyes, res -
piratory organs or clothing or be swallowed.
Ther eis aris kof injury.
If you come int ocontact wit hth eelectrolyte,
observ eth efollowing:
RRins eoff th eelectrolyt efrom your skin
immediately wit hwater.
RImmediately rinse th eelectrolyt eout of
your eyes thoroughly wit hclean water.
RIf th eelectrolyt eis swallowed, immediately
rinse your mout hout thoroughly. Do no t
induce vomiting .
RIf electrolytecomes int ocontact wit hyour
skin or hair or is swallowed, seek medical
attention immediately.
RImmediately chang eout of clothing whic h
has come int ocontact wit helectrolyte.
RIf an allergic reaction occurs, seek medical
attention immediately.
104Mirrors
Seats, steering wheel and mirrors

light switch toT, the daytime running lamps
and parking lamps switch on.
If the engine is running and you turn the light
switch to L, the manual settings take prec-
edence over the daytime running lamps.
USA only:
The daytime running lamps improve the visibility of your vehicle during the day. To do this, the
daytime running lamps function must be
switched on using the on-board computer
(
Ypage 206).
If the engine is running and you turn the light
switch to TorL, the manual settings
take precedence over the daytime running
lamps.
Low-beam headlamps
GWARNING
When the light switch is set to Ã, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
Even if the light sensor does not detect that it is
dark, the parking lamps and low-beam head-
lamps switch on when the ignition is switched on and the light switch is set to the Lposition.
This is a particularly useful function in the event
of rain and fog.
XTo switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to posi- tion 2or start the engine.
XTurn the light switch to L.
The green Lindicator lamp in the instru-
ment cluster lights up.
Parking lamps
!If the battery charge is very low, the parking
lamps or standing lamps are automatically
switched off to enable the next engine start.
Always park your vehicle safely and suffi-
ciently lit according to legal standards. Avoid
using the parking lamps Tover a period of
several hours. If possible, switch on the right-
hand X or left-hand Wstanding lamp.
XTo switch on: turn the light switch to T.
The green Tindicator lamp in the instru-
ment cluster lights up.
Standing lamps
Switching on the standing lamps ensures the
corresponding side of the vehicle is illuminated.
XTo switch on the standing lamps: the
SmartKey should not be in the ignition lock or
it should be in position 0.
XTurn the light switch toW(left-hand side of
the vehicle) or X(right-hand side of the
vehicle).
Combination switch
:High-beam headlamps
;Turn signal, right
=High-beam flasher
?Turn signal, left
XTo indicate briefly: press the combination
switch briefly to the pressure point in the
direction of arrow ;or?.
The corresponding turn signal flashes three
times.
XTo indicate: press the combination switch
beyond the pressure point in the direction of
arrow ;or?.
XTo switch on the high-beam headlamps
manually: turn the SmartKey to position 2in
the ignition lock or start the engine.
XVehicles without Adaptive Highbeam Assist:
turn the light switch to LorÃ.
XVehicles with Adaptive Highbeam Assist: turn
the light switch to L.
108Exterior lighting
Lights and windshield wipers

?cSwitches the front interior lighting on/
off
Ap Switches the left-hand front reading
lamp on/off
Rear-compartment overhead control panel
:
p Switches the right-hand reading lamp
on/off
;p Switches the left-hand reading lamp
on/off
Interior lighting control
General notes
In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
except when the SmartKey is in position 2in the
ignition lock.
The color and brightness of the ambient lighting
may be set using the on-board computer
(
Ypage 206).
Automatic interior lighting control
XTo switch on/off: press the|button.
When the automatic interior lighting control is
activated, the button is flush with the over-
head control panel.
The interior lighting automatically switches on if
you:
Runlock the vehicle
Ropen a door
Rremove the SmartKey from the ignition lock
The interior light is activated for a short while
when the SmartKey is removed from the ignition
lock. You can activate this delayed switch-off
using the on-board computer (
Ypage 207).
Replacing bulbs
The front and rear light clusters of your vehicle
are equipped with LED light bulbs. Do not
replace the bulbs yourself. Contact a qualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out the
work required.
Lamps are an important aspect of vehicle safety.
You must therefore make sure that these func-
tion correctly at all times. Have the headlamp
setting checked regularly.
Windshield wipers
Switching the windshield wipers
on/off
!
Do not operate the windshield wipers when
the windshield is dry, as this could damage
the wiper blades. Moreover, dust that has col-
lected on the windshield can scratch the glass
if wiping takes place when the windshield is
dry.
If it is necessary to switch on the windshield
wipers in dry weather conditions, always use
washer fluid when operating the windshield
wipers.
!If the windshield wipers leave smears on the
windshield after the vehicle has been washed
in an automatic car wash, wax or other resi-
dues may be the reason for this. Clean the
windshield using washer fluid after washing
the vehicle in an automatic car wash.
!Intermittent wiping with rain sensor: due to
optical influences and the windshield becom-
ing dirty in dry weather conditions, the wind-
shield wipers may be activated inadvertently.
This could then damage the windshield wiper
blades or scratch the windshield.
For this reason, you should always switch off
the windshield wipers in dry weather.
Windshield wipers111
Lights and windshield wipers
Z