2017 MERCEDES-BENZ S CLASS battery

gram, the vehicle accelerates more gently. This
setting is recommended in stop-and-start traf-
fic.
Mercedes-AMG vehicles: DISTRONIC PLUS
supports a sporty driving style when you select
the S or M drive program ( Y
page 155). Accel-
eration behind the vehicle in front or to the set
speed is then noticeably more dynamic. When
you select the C drive program, the vehicle
accelerates more gently. This setting is recom-
mended in stop-and-start traffic.
Changing lanes DISTRONIC PLUS aids you when switching to
the overtaking lane, if: R
you are driving faster than 45 mph (70 km/h) R
you switch on the appropriate turn signal R
DISTRONIC PLUS does not detect a danger of
a collision
If these conditions are fulfilled, your vehicle is
accelerated. Acceleration will be interrupted if
changing lanes takes too long or if the distance
between your vehicle and the vehicle in front
becomes too small.
When you change lanes, DISTRONIC PLUS mon-
itors the left lane (on left-hand-drive vehicles) or
the right lane (on right-hand-drive vehicles).
Stopping
G WARNING
When leaving the vehicle, even if it is braked
only by DISTRONIC PLUS, it could roll away if: R
there is a malfunction in the system or in
the voltage supply. R
DISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by a vehi-
cle occupant or from outside the vehicle. R
the electrical system in the engine com-
partment, the battery or the fuses have
been tampered with. R
the battery is disconnected. R
the accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
DISTRONIC PLUS and secure the vehicle
against rolling away. For further information on deactivating
DISTRONIC PLUS ( Y
page 176).
If DISTRONIC PLUS detects that the vehicle in
front has stopped, it will cause your vehicle to
brake and come to a halt.
Once your vehicle is stationary, it remains sta-
tionary and you do not need to depress the
brake.
After a time, the electric parking brake secures
the vehicle and relieves the service brake.
Depending on the specified minimum distance,
your vehicle will come to a standstill at a suffi-
cient distance behind the vehicle in front. The
specified minimum distance is set using the
control on the cruise control lever.
When DISTRONIC PLUS is activated, the trans-
mission is shifted automatically to position P if:R
the driver's seat belt is not fastened and the
driver's door is open. R
the engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function.
The electric parking brake secures the vehicle
automatically if DISTRONIC PLUS is activated
when the vehicle is stationary and: R
a system malfunction occurs. R
the power supply is not sufficient.
If a malfunction occurs, the transmission may
also shift into position P automatically.
Setting a speed X
Push the cruise control lever upwards C for a
higher speed or down D for a lower speed.X
To adjust the set speed in1 mphincre-
ments (1 km/hincrements): briefly push
the cruise control lever up C or down D to
the pressure point.
Every time the cruise control lever is pressed
up C or down D the last speed stored is
increased or reduced. X
To adjust the set speed in5 mphincre-
ments (10 km/hincrements): briefly push
the cruise control lever up C or down D
beyond the pressure point.
Every time the cruise control lever is pressed
up C or down D , the last speed stored is
increased or reduced.
i If you accelerate to overtake, DISTRONIC
PLUS adjusts the vehicle's speed back to the174
Driving systems
Driving and parking

Important safety notes
G WARNIN G
When leaving th e vehicle, it can still rol l away
despit e bein g braked by th e HOLD function if:R
there is a malfunction in th e system or in
th e voltag e supply.R
th e HOLD function has been deactivated by
pressin g th e accelerato r pedal or th e brak e
pedal , e.g. by a vehicl e occupant .R
th e electrical system in th e engin e com-
partment, th e battery or th e fuses have
been tampered with. R
th e battery is disconnected
Ther e is a ris k of an accident.
If you wish to exit th e vehicle, always tur n off
th e HOLD function and secure th e vehicl e
against rollin g away.
Further information on deactivating th e HOLD
function ( Y
page 179).
! When DISTRONI C PLU S or th e HOLD func-
tion is activated, th e vehicl e brakes automat -
ically in certain situations.
To avoi d damag e to th e vehicle, deactivat e
DISTRONI C PLU S and th e HOLD function in
th e followin g or similar situations:R
when towin g th e vehicl eR
in th e car wash
Activation conditions You can activat e th e HOLD function if all of th e
followin g condition s are fulfilled :R
th e vehicl e is stationary.R
th e engin e is runnin g or if it has been auto -
matically switched off by th e ECO start/sto p
function .R
th e driver' s door is closed or your seat belt is
fastened. R
th e electric parking brak e is released.R
th e transmission is in position D , R or N .R
DISTRONI C PLU S is deactivated. Activating the HOLD function X
Mak e sur e that th e activation condition s are
met . X
Depress th e brak e pedal .X
Quickly depress th e brak e pedal further
until C appear s in th e multifunction display.
The HOLD function is activated. You can
release th e brak e pedal .
If depressing th e brak e pedal th e first time does
no t activat e th e HOLD function , wait briefly and
then tr y again .
Deactivating the HOLD function The HOLD function is deactivated automatically
if: R
you accelerate and th e transmission is in
position D or R . R
you shif t th e transmission to position P .R
you depress th e brak e pedal again wit h a cer-
tai n amoun t of pressur e until

Active Parking Assist will only detect parking
spaces: R
parallel or at right angles to the direction of
travel R
that are parallel to the direction of travel and
at least 59 in (1.5 m) wid eR
that are parallel to the direction of travel and
at least 39.5 in (1.0 m) longer than your vehi-
cle R
that are at right angles to the direction of
travel and at least 39.5 in (1.0 m) wider than
your vehicle
i Note that Active Parking Assist cannot
measure the size of a parking space if it is at
right angles to the direction of travel. You will
need to judge whether your vehicle will fit into
the parking space.
When driving at speeds below 19 mph
(30 km/h), you will see the parking symbol as a
status indicator in the instrument cluster. When
a parking space has been detected, an arrow
towards the right or the left also appears. By
default, Active Parking Assist only displays park-
ing spaces on the front-passenger side. Parking
spaces on the driver's side are displayed as
soon as the turn signal on the driver's side is
activated. When parking on the driver's side,
this must remain switched on until you acknowl-
edge the use of Active Parking Assist by press-
ing the v button on the multifunction steer-
ing wheel. The system automatically determines
whether the parking space is parallel or at right
angles to the direction of travel.
A parking space is displayed while you are driv-
ing past it, and until you are approximately 50 ft
(15 m) away from it.
Parking
G WARNING
If you leave the vehicle when it is only being
braked by Active Parking Assist it could roll
away if: R
there is a malfunction in the system or in
the voltage supply. R
the electrical system in the engine com-
partment, the battery or the fuses have
been tampered with. R
the battery is disconnected. R
the accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
Before leaving the vehicle, always secure it
against rolling away.
i When PARKTRONIC detects obstacles,
Active Parking Assist brakes automatically
during the parking process. You are respon-
sible for braking in good time. X
Stop the vehicle when the parking space sym-
bol shows the desired parking space in the
instrument cluster. X
Shift the transmission to position R .
The Start Park Assist? Yes: OK No: 8
message appears in the multifunction display. X
To cancel the procedure: press the 8
button on the multifunction steering wheel or
pull away.
or X
To park using Active Parking Assist: press
the v button on the multifunction steering
wheel.
The Park Assist Active Accelerate
and Brake Observe Surroundings mes-
sage appears in the multifunction display. X
Let go of the multifunction steering wheel. X
Back up the vehicle, being ready to brake at all
times. When backing up, drive at a speed
below approximately 6 mph (10 km/h). Oth-
erwise Active Parking Assist will be canceled.
Active Parking Assist brakes the vehicle to a
standstill when the vehicle approaches the
rear border of the parking space.
Maneuvering may be required in tight parking
spaces.
The Park Assist Active Select D Observe
Surroundings message appears in the multi-
function display. X
Shift the transmission to position D while the
vehicle is stationary.
Active Parking Assist immediately steers in
the other direction.188
Driving systems
Driving and parking

Display messages
Possible causes/consequences and P Solutions
The yellow $ warning lamp lights up. The red I (US A only)
or $ (Canada only) indicator lamp flashes for about te n seconds
after th e electric parking brak e has been applie d or released. It then
goe s out or remain s lit .
The electric parking brak e is malfunctioning .X
Switc h off th e ignition and tur n it bac k on .X
Apply th e electric parking brake.
If it is no t possibl e to engage th e electric parking brake:X
Shift th e transmission to position P .X
Visit a qualified specialist workshop .
If it is no t possibl e to release th e electric parking brake:X
Releas e th e electric parking brak e automatically ( Y
page 164).
If th e electric parking brak e still canno t be released:X
Consult a qualified specialist workshop .
The yellow $ warning lamp lights up. If you manually apply or
release th e electric parking brake, th e red I (US A only) or $
(Canada only) indicator lamp flashes .
The electric parking brak e is malfunctioning . It is no t possibl e to apply
th e electric parking brak e manually.X
Shift th e transmission to position P .X
Visit a qualified specialist workshop .
I (USA
only)
$ ( Canada
only)
Parkin g Brake Inop‐
erativ e The yellow $ warning lamp lights up. The red I (US A only)
or $ (Canada only) indicator lamp flashes for about te n seconds
after th e electric parking brak e has been applie d or released. It then
goe s out or remain s lit .
The electric parking brak e is malfunctioning , e.g. because of over-
voltag e or undervoltage. X
Remove th e caus e for th e overvoltage or undervoltage, e.g. by
charging th e battery or restarting th e engine.X
Engage or release th e electric parking brake.
If it remain s impossible to apply or release th e electric parking brake:X
Switc h off th e ignition and tur n it bac k on .X
Engage or release th e electric parking brake.
If th e electric parking brak e still canno t be released:X
Consult a qualified specialist workshop .
If th e electric parking brak e still canno t be applied:X
Visit a qualified specialist workshop .232
Display messages
On-board computer and displays

Display messages
Possible causes/consequences and P Solutions
= See Operator' s Man ‐
ual The battery is no t bein g charged.
A warning tone also sounds.
Possibl e causes are: R
a defective alternato rR
a torn poly-V-belt R
a malfunction in th e electronics
! Do no t continu e driving. The engin e could otherwise overheat.X
Pull ove r and stop th e vehicl e safely and switch off th e engine, pay-
ing attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 162).X
Consult a qualified specialist workshop .
= Sto p Vehicl e See
Operator' s Manual The battery is no longer bein g charged and th e condition of charg e is
to o low.
A warning tone also sounds. X
Pull ove r and stop th e vehicl e safely and switch off th e engine, pay-
ing attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 162).X
Observ e th e instruction s in th e = See Operator' s Manual
display message .X
Consult a qualified specialist workshop .
= Sto p Vehicl e Leave
Engine Runnin g The battery condition of charg e is to o low.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
Leav e th e engin e running.X
Wait until th e display message disappear s before pullin g away.
= Start Engine See
Operator' s Manual The engin e is switched off and th e condition of charg e is to o low.X
Switc h off electrical consumer s that you do no t need, suc h as th e
rear window defroste r and interior lighting .X
Leav e th e engin e runnin g for a few minute s or drive a lon g distance.
The battery is bein g charged.Display messages 24 3
On-board computer and displays Z

Display messages
Possible causes/consequences and P Solutions
Servic e Required Do
Not Shift Gears
Visit Dealer You canno t chang e th e transmission position due to a malfunction .
A warning tone also sounds.
If transmission position D is selected:X
Drive to a qualified specialist workshop without shifting th e trans -
mission from position D .
If transmission position R , N or P is selected:X
Secur e th e vehicl e against rollin g away ( Y
page 162).X
Notify a qualified specialist workshop or breakdown service.
Reversing Not Possi‐
ble Servic e Required You canno t shift int o th e transmission position R due to a malfunction .
The transmission position s P , N or D continu e to be available.
A warning tone also sounds. X
Visit a qualified specialist workshop .
Transmission Mal ‐
function Sto p A malfunction has occurred in th e mechanical transmission compo -
nents.
A warning tone also sounds. The gearbox automatically shift s to posi-
tion N . 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
Shift th e transmission to position P .X
Secur e th e vehicl e against rollin g away ( Y
page 162).X
Notify a qualified specialist workshop or breakdown service.
Sto p Vehicl e Leave
Engine Runnin g Wai t
Transmission Cool‐
ing The transmission has overheated. Pullin g away can be temporarily
impaire d or no t possible.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
Wait until th e display message disappear s before pullin g away.
Auxiliary Batter y
Malfunction The auxiliary battery for th e transmission is no longer bein g charged.X
Visit a qualified specialist workshop .X
Unti l then , set th e transmission to position P before you switch off
th e engine. X
Befor e leaving th e vehicle, apply th e electric parking brake.

Vehicles with individual seats in the rear
Example: Sedan X
Press lid C of the socket compartment
briefly.
The socket compartment opens. X
Press in cigarette lighter D .
Cigarette lighter D will pop out automatically
when the heating element is red-hot.
12 V sockets
General notes X
Turn the SmartKey to position 1 in the ignition
lock ( Y
page 145).
The sockets can be used for accessories with a
maximum draw of 180 W (15 A). Accessories
include such items as chargers for mobile
phones.
If you use the sockets for long periods when the
engine is switched off, the battery may dis-
charge.
An emergency cut-out ensures that the on-
board voltage does not drop too low. If the on-
board voltage is too low, the power to the sock-
ets is automatically cut. This ensures that there
is sufficient power to start the engine. Socket in the front center console X
To open: briefly press marking

Problems with the 115 V power socket Problem
Possible causes/consequences and P Solutions
The warning lamp on the
115 V power socket is
not lit. The on-board voltage is too low because the battery is too weak. X
Start the engine.
or X
Charge the battery ( Y
page 334).
If the indicator lamp still does not light up: X
Visit a qualified specialist workshop.
The temperature of the DC/AC converter is temporarily too high. X
Remove the electronic device connector from the 115 V socket. X
Let the DC/AC converter cool down.
If the indicator lamp still does not light up after cooling down the
converter: X
Visit a qualified specialist workshop.
You have connected an electronic device that has a constant nominal
power of less than 150 watts, but has a very high switch-on current.
This device will not work. If you connect such a device, the 115 V
power socket will not supply it with power. X
Connect a suitable electronic device.
Coolbox in the rear compartment
Important safety notes
G WARNING
If you cover the ventilation grille for the cool-
box, it may overheat. There is a risk of fire.
Always make sure that the ventilation grille is
not covered.
The ventilation grille for the coolbox is in the
trunk.
The coolbox can bear a maximum load of 7.7 lb
(3.5 kg).
If you want to store a bottle in the upper com-
partment of the coolbox, the capacity of the
bottle must not exceed 17 fl. oz. (0.5 l).
Store only plastic bottles in the upper compart-
ment of the coolbox. Using the coolbox
X
Vehicles with rear seat armrest: fold down
the rear seat armrest. X
Pull handle C and fold down cover D .Features 299
Stowage and features Z