ECU MERCEDES-BENZ S CLASS 2016 Owner's Guide

To avoid hazardous situations, observe the
following: R
Only connect the charging cable to mains
sockets that: -
are installed correctly and -
have been approved by an electrical spe-
cialist. R
For safety reasons, only use the charging
cables supplied with the vehicle, or charg-
ing cables which have been approved for
use with this vehicle. R
Never use a damaged charging cable. R
Do not use:-
Extension cables -
Cable drums -
Multiple sockets R
Do not use a socket adapter to connect the
charging cable to the mains socket. The
only exception is if the adapter has been
tested and approved by the manufacturer
for charging the high-voltage battery in an
electric vehicle. R
Always observe the safety notes in the
socket adapter's operating instructions.
G DANGER
Connecting the charging cable to the vehicle
via an incorrectly installed wallbox or by
means of adapters, extension cables or simi-
lar could cause a fire or an electric shock.
There is a risk of fatal injury.
To avoid hazardous situations, observe the
following: R
Only connect the charging cable to a wall-
box if: -
the wallbox is installed correctly -
the wallbox has been inspected by a
qualified electrician and -
the charging cable is undamaged R
Do not extend the charging cable R
Do not use an adapter R
Always observe the safety notes in the wall-
box's operating instructions The vehicle's high voltage electrical system is
under high voltage. R
Do not tamper with the high-voltage compo-
nents or the orange cables of the high-voltage
electrical system. R
Do not touch high-voltage components or the
orange cables of the high-voltage electrical
system when a vehicle has been involved in a
crash. R
Never touch damaged components or the
damaged orange cables of the high-voltage
electrical system. R
Do not remove the covers of the high-voltage
electrical system components that are
marked with a warning sticker.
General notes
Method of operation The vehicle is equipped with a high-voltage bat-
tery for driving. The high-voltage battery stores
the energy needed to operate the electric motor
and releases it again.
The electric motor uses energy that has been
stored in the high-voltage battery when pulling
away, accelerating and during the journey.
In overrun mode, kinetic energy is converted by
means of energy recuperation into electrical
energy and stored in the high-voltage battery.
Information on overrun mode ( Y
page 253).
The high-voltage battery can be charged as fol-
lows: R
through energy recuperation while the vehicle
is in motion R
through the combustion engine while driving
in CHARGE operating mode ( Y
page 243)R
with the relevant charging cable at an electri-
cal outlet while the vehicle is stationary R
at a wallbox while the vehicle is stationary R
at a charging station while the vehicle is sta-
tionary
The high-voltage battery can be charged in a
nominal voltage range from 100 V to 240 V.
You can view the condition of charge of the high-
voltage battery in the multifunction display. You
can find information in "PLUG-IN HYBRID oper-
ation", section "Menus and submenus" under
"Energy flow display" ( Y
page 245).Charging the high-voltage battery (PLUG-IN HYBRID vehicles) 181
Driving and parking Z

High and low outside temperatures Low outside temperatures
At very low outside temperatures the maximum
power output of the high-voltage battery may be
reduced. The high-voltage battery is then no
longer able to provide the normal electrical
power output.
High outside temperatures
To prevent damage to the high-voltage battery
due to very high outside temperatures, the max-
imum power output of the high-voltage battery
is reduced by the vehicle.
Energy consumption and electrical
range The maximum electrical range is generally
reduced by: R
high and low outside temperatures R
operating the climate control system R
switching on consumers
The battery's physical characteristics are such
that leaving the vehicle parked for long periods
at low outdoor temperatures without charging it
can lead to: R
a reduction in battery performance R
longer charge times
Notes on battery care Avoid storing or transporting the vehicle at
excessively high or low temperatures over a long
period.
If you park the vehicle and leave it stationary for
long periods: R
check the condition of charge of the high-
voltage battery more often R
connect the vehicle to a power supply
This prevents self-discharge and damage to the
high-voltage battery.
Terms of use
Please note the information on exceptions and
limitations in warranty documentation and in
the Maintenance Booklet. Handling the charging cable and charg-
ing cable controls Do not leave the charging cable controls
( Y
page 183) hanging loose from an electrical
outlet. Otherwise, this could result in a poor
contact with the electrical outlet and malfunc-
tions when charging the vehicle.
To ensure that the brackets within the charging
cable controls are not subjected to incorrect
loads, observe the following: R
Never lift or carry the controls by the charging
cable connector or the mains plug. R
To transport the charging cable, the charging
cable can be: -
wrapped around the controls or -
secured to the housing of the controls
Heat generated by the charging cable
and charging cable connector Pay attention to the "Important safety notes"
( Y
page 180).
During the charging process, the charging cable
and charging cable connector may heat up.
The charging cable and the charging cable con-
nector will only heat up within the permissible
limiting values, provided that: R
the power supply and the charging cable are
not damaged R
the instructions for handling the charging
cable and controls on the charging cable are
observed
If the charging cable or charging cable connec-
tor become too hot, have the mains power sup-
ply checked.
Protection device against overvoltage
! Overvoltage in the mains supply may dam-
age the vehicle. For this reason, the vehicle is
equipped with a protection device against
overvoltage in the mains supply. This device
may be triggered during severe thunder-
storms, for example, and may lead to the buil-
ding's fuse being tripped and an interruption
in the power supply. These functions protect
the vehicle. After the building fuse is switched
on again, the charging process resumes auto-
matically. Following an interruption in the
power supply or tripping of the building's fuse,
it may take up to 10 minutes for charging to
resume automatically.182
Charging the high-voltage battery (PLUG-IN HYBRID vehicles)
Driving and parking

i Prevent unauthorized persons from
accessing this data.
Every person who has access to the informa-
tion stated can use the functions on the "My
Mercedes Electric - Vehicle Homepage".
i Information when selling a vehicle or
buying a used vehicle: R
If you sell your vehicle, you are obliged to
delete the vehicle from your personal area
on the "My Mercedes Electric - Vehicle
Homepage". R
If you have bought a used vehicle, it is pos-
sible that the previous owner still has
access to the "My Mercedes Electric - Vehi-
cle Homepage".
Calling up functions The "My Mercedes Electric - Vehicle Homepage"
allows you access to information about your
vehicle and its functions using remote query and
remote configuration.
The following functions can be accessed: R
request the current condition of charge of the
high-voltage battery R
program the departure time ( Y
page 272)R
set or activate the "Pre-entry climate control
at departure time" function (see the separate
COMAND operating instructions)
Information on additional functions and operat-
ing instructions can be found on the "My
Mercedes Electric - Vehicle Homepage".
Connecting the vehicle to the Internet
i This function is not available in all countries
and requires activated access to the mbrace
emergency call system.
The "My Mercedes Electric - Vehicle Homepage"
can be used if the vehicle has a connection to
the Internet via a mobile phone network. The
necessary data is transmitted by radio. The vehi-
cle automatically recognizes whether a connec-
tion to the Internet is possible or not. No presets
are necessary.
i Restrictions in reception are possible if the
vehicle is in an underground car park, for
example. Restrictions may also occur in areas
with poor mobile network coverage. Parking
Important safety notes
G WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system or exhaust
gas flow. There is a risk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the vehi-
cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields.
G WARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example: R
release the parking brake. R
shift the automatic transmission out of the
parking position P . R
start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. 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 unsupervised in the vehicle.
! Always secure the vehicle correctly against
rolling away. Otherwise, the vehicle or its driv-
etrain could be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally: R
the electric parking brake must be applied. R
the transmission must be in position P and the
SmartKey must be removed from the ignition
lock. R
the front wheels must be turned towards the
curb on steep uphill or downhill gradients. R
the empty vehicle must be secured at the
front axle with a wheel chock or similar, for
example, on uphill or downhill gradients. R
a laden vehicle must also be secured at the
rear axle with a wheel chock or similar, for
example, on uphill or downhill gradients. Parking 189
Driving and parking Z

When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The function of the electric parking brake is
dependent on the on-board voltage. If the on-
board voltage is low or there is a malfunction in
the system, it may not be possible to apply the
released parking brake. X
If this is the case, only park the vehicle on
level ground and secure it to prevent it rolling
away. X
Shift the automatic transmission to position
P .
It may not be possible to release an applied
parking brake if the on-board voltage is low or
there is a malfunction in the system. Contact a
qualified specialist workshop.
The electric parking brake performs a function
test at regular intervals while the engine is
switched off. The sounds that can be heard while
this is occurring are normal.
Applying or releasing manually
X
To engage: push handle C .
When the electric parking brake is applied,
the red I (USA only) or $ (Canada
only) indicator lamp lights up in the instru-
ment cluster.
The electric parking brake can also be applied
when the SmartKey is removed. X
To release: pull handle C .
The red I (USA only) or $ (Canada
only) indicator lamp in the instrument cluster
goes out.
The electric parking brake can only be released: R
when the SmartKey is in position 1 or 2 in the
ignition lock ( Y
page 162) or R
if the ignition was switched on using the
Start/Stop button
Applying automatically The electric parking brake is automatically
applied when the transmission is in position P
and: R
the engine is switched off or R
the driver is not wearing a seat belt and the
driver's door is opened
To prevent the electric parking brake from being
automatically applied, pull handle C .
The electric parking brake is also engaged auto-
matically if: R
DISTRONIC PLUS brings the vehicle to a
standstill or R
the HOLD function is keeping the vehicle sta-
tionary R
Active Parking Assist is keeping the vehicle
stationary
In addition, at least one of the following condi-
tions must be fulfilled: R
the engine is switched off R
the driver is not wearing a seat belt and the
driver's door is opened R
there is a system malfunction R
the power supply is insufficient R
the vehicle is stationary for a lengthy period
The red I (USA only) or $ (Canada only)
indicator lamp in the instrument cluster lights
up.
The electric parking brake is not automatically
engaged if the engine is switched off by the ECO
start/stop function.
Releasing automatically
The electric parking brake is released automat-
ically when all of the following conditions are
fulfilled: R
the engine is running. R
the transmission is in position D or R .Parking 191
Driving and parking Z

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.
i When you change lanes, DISTRONIC PLUS
monitors the left lane on left-hand-drive vehi-
cles or the right lane on right-hand-drive vehi-
cles.
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 205).
If DISTRONIC PLUS detects that the vehicle in
front is stopping, it brakes your vehicle until it is
stationary.
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 in the electric parking brake
occurs, then the transmission may also be shif-
ted into position P automatically.
Setting a speed
X
Press the cruise control lever up C for a
higher speed or down D for a lower speed.X
To adjust the set speed in 1 mph incre-
ments (1 km/h increments): briefly press
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 in 5 mph incre-
ments (1 0 km/h increments): briefly press
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.
i If you accelerate to overtake, DISTRONIC
PLUS adjusts the vehicle's speed to the last
speed stored after you have finished overtak-
ing.Driving systems 203
Driving and parking Z

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 209).
! If DISTRONI C PLU S or th e HOLD function is
activated, th e vehicl e brakes automatically in
certain situations.
To preven t damag e to th e vehicle, deactivat e
DISTRONI C PLU S and th e HOLD function in
th e followin g or other 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 .
i 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

The electric parking brake secures the vehicle
automatically if the HOLD function is activated
when the vehicle is stationary and: R
a system malfunction occurs. R
the power supply is not sufficient.
If a malfunction in the electric parking brake
occurs, then the transmission may also be shif-
ted into position P automatically.
MAGIC BODY CONTROL
General notes MAGIC BODY CONTROL consists of Active Body
Control (ABC), ROAD SURFACE SCAN as well as
automatic vehicle stabilization in the event of a
crosswind.
Your vehicle automatically adjusts its ride height
to improve driving safety and reduce fuel con-
sumption. The suspension mode is adjusted
according to your selection (sports or comfort),
the road surface conditions and the vehicle load.
A multifunction camera detects bumps in the
road surface before the vehicle drives over
them. This reduces chassis movements.
Important safety notes
G WARNING
When the vehicle is being lowered, people
could become trapped if their limbs are
between the vehicle body and the wheels or
underneath the vehicle. There is a risk of
injury.
Make sure no one is underneath the vehicle or
in the immediate vicinity of the wheel arches
when the vehicle is being lowered.
! The vehicle is lowered when the engine is
switched off. When parking, position your
vehicle so that it does not make contact with
the curb as the vehicle is lowered. Your vehi-
cle could otherwise be damaged.
Crosswind Assist
The crosswind stabilization operates by chang-
ing wheel loads through adjusting the ABC
spring struts. It reduces impairments in handling
when driving in a straight line and assists during
countersteering. Crosswind Assist is active in the speed range
between 50 mph (80 km/ h) and
130 mph (210 km/h) when driving straight
ahead or cornering gently.
Active Body Control ABC Vehicle level All vehicles except AMG vehicles: depending
on the vehicle level that has been set, the vehi-
cle automatically adjusts its height dependent
on the current speed. The vehicle is lowered by
up to 0.6 in (15 mm ) as the speed increases. As
the speed is reduced, the vehicle is raised up to
the set vehicle height.
AMG vehicles: depending on the vehicle level
that has been selected, the vehicle automati-
cally adjusts its height dependent on the current
speed. The vehicle is lowered by up to 0.4 in
(10 mm) below the normal level as the speed
increases. As the speed is reduced, the vehicle
is raised up to the set vehicle height.
Select the "Normal" setting for normal road con-
ditions and "Raised" for driving with snow chains
or in particularly poor road conditions.
Setting the vehicle level X
To raise the vehicle: press button C .
Indicator lamp D lights up.X
To lower the vehicle: press button C again.
Indicator lamp D goes out.
Your selection remains stored even if you
remove the SmartKey from the ignition lock.
Suspension tuning
The electronically controlled ABC suspension
system detects the vehicle level and the vehicle
load and adjusts the setting accordingly. You
can also choose between a particularly sporty or
a comfortable tuning.210
Driving systems
Driving and parking

R
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.
The Park Assist Active Accelerate
and Brake Observe Surroundings mes-
sage appears in the multifunction display.
i You will achieve the best results by waiting
for the steering procedure to complete before
pulling away. X
Drive forwards and be ready to brake at all
times.
Active Parking Assist brakes the vehicle to a
standstill.
The Park Assist Active Select R Observe
Surroundings message appears in the multi-
function display.218
Driving systems
Driving and parking

PLUG ‑ IN HYBRID operation
Points to remember
General notes Hybrid technology combines a fuel efficient
internal combustion engine with a powerful
electric motor. In HYBRID mode, the hybrid
drive system automatically selects the most effi-
cient operating mode for every driving situation.
Drive the vehicle in the usual manner.
To save fuel in HYBRID mode, the hybrid drive
system switches off the combustion engine as
often as possible during the journey when power
output requirements are low. When power out-
put requirements are low, the electric motor
powers the vehicle. The combustion engine is
automatically activated when power output
requirements are high. The engine is usually
switched off when the vehicle is stationary. Con-
sequently, there is usually no engine idling as
with combustion engine vehicles.
For pulling away and accelerating, the electric
motor supports the internal combustion engine
using the power stored in the high-voltage bat-
tery. In addition, the power is used for partially
electric driving, operation of the electric coolant
compressor and to support the 12 V on-board
electrical system. In this way the hybrid drive
system helps to reduce your vehicle's fuel con-
sumption.
Observe the driving tips on PLUG-IN HYBRID
operation ( Y
page 251).
Recuperative Brake System If you release the accelerator pedal when the
vehicle is in motion, overrun recuperation is ini-
tiated. The electric motor is operated as a gen-
erator when in overrun mode and when you
brake. Hybrid technology converts the kinetic
energy of the vehicle into electricity and stores
it in the high-voltage battery.
Observe the important safety notes for the
Recuperative Brake System ( Y
page 44). Important safety notes If the engine is switched off by the ECO start/
stop function and you open the driver's door: R
a message appears in the multifunction dis-
play and R
a warning tone sounds
Further information ( Y
page 297).
All of the vehicle's systems remain active, if: R
the vehicle is stationary R
the combustion engine is switched off and R
the READY indicator in the instrument cluster
lights up
If you remove your foot from the brake pedal
while in transmission position D or R, the vehicle
may pull away automatically.
Observe the notes on the READY display of the
ECO start/stop function ( Y
page 252).
Vehicles with an electric motor generate much
less driving noise than vehicles with internal
combustion engines. As a result, your vehicle
may not be heard by other road users in certain
situations.
Depending on the vehicle's equipment and
country-specific regulations, the vehicle can be
equipped with Acoustic Vehicle Indication.
Acoustic Vehicle Indication generates a certain
sound at a speed between 0 and 19 mph
(30 km/h). This helps other road users, partic-
ularly pedestrians and cyclists, to hear your
vehicle better. The sound can also be heard
inside the vehicle.
The volume depends on the engine speed. The
faster you accelerate, the louder the sound is. At
a speed of over 19 mph (30 km/h) the sound is
switched off. Above this speed, the natural
sounds from the vehicle are sufficient that it can
be heard in good time by other road users.240
PLUG ‑ IN HYBRID operation
Driving and parking

Instrument cluster
C
Recuperative Brake Syste m warning lamp ( Y
page 315)D
Electric motor performance display ( Y
page 242)