engine MERCEDES-BENZ S-Class SEDAN 2016 W222 Service Manual

Useful information
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of publica-
tion of the Operator's Manual. Country-spe-
cific differences are possible. Please note
that your vehicle may not be equipped with all
features described. This also applies to
safety-related systems and functions.
iRead the information on qualified specialist
workshops (Ypage 28).
Correct driver's seat position
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.
XObserve the safety guidelines on seat adjust-
ment (Ypage 105).
XCheck whether you have adjusted seat =
properly (Ypage 106). When adjusting the seat, make sure that:
Ryou are as far away from the driver's air bag as
possible
Ryou are sitting in a normal upright position
Ryou can fasten the seat belt properly
Ryou have moved the backrest to an almost
vertical position
Ryou have set the seat cushion angle so that
your thighs are gently supported
Ryou can depress the pedals properly
XCheck whether the head restraint is adjusted
properly.
When doing so, make sure that you have
adjusted the head restraint so that the back of
your head is supported at eye level by the
center of the head restraint.
XObserve the safety guidelines on steering
wheel adjustment (Ypage 120).
XMake sure that steering wheel
:is adjusted
properly (Ypage 120).
When adjusting the steering wheel, make sure
that:
Ryou can hold the steering wheel with your
arms slightly bent
Ryou can move your legs freely
Ryou can see all the displays in the instrument cluster clearly
XObserve the safety guidelines for seat belts
(Ypage 47).
XCheck whether you have fastened seat
belt ;properly (Ypage 49).
The seat belt should:
Rfit snugly across your body
Rbe routed across the middle of your shoulder
Rbe routed in your pelvic area across the hip
joints
XBefore starting off, adjust the rear-view mirror
and the exterior mirrors in such a way that you
have a good view of road and traffic condi-
tions (
Ypage 123).
XVehicles with a memory function: save the
seat, steering wheel and exterior mirror set-
tings with the memory function (
Ypage 126).
104Correct driver's seat position
Seats, steering wheel and mirrors

Seats
Important safety notes
GWARNING
Children could become trapped if they adjust
the seats, 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.
The seats can still be adjusted when there is no
SmartKey in the ignition lock.
GWARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
(
Ypage 50) and "Children in the Vehicle"
(Ypage 61).
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
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
GWARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection as intended. There is an increased risk
of injury in the head and neck area, e.g. in the event of an accident or when braking.
Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
GWARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
!To avoid damage to the seats and the seat
heating, observe the following information:
Rkeep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat heat-
ing should also not be used to dry the seats.
Rclean the seat covers as recommended;
see "Interior care".
Rdo not transport heavy loads on the seats.
Do not place sharp objects on the seat
cushions, e.g. knives, nails or tools. The
seats should only be occupied by passen-
gers, if possible.
Rwhen the seat heating is in operation, do
not cover the seats with insulating materi-
als, e.g. blankets, coats, bags, seat covers,
child seats or booster seats.
!Make sure that there are no objects in the
footwell under or behind the seats when mov-
Seats105
Seats, steering wheel and mirrors
Z

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
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection as intended. There is an increased risk
of injury in the head and neck area, e.g. in the event of an accident or when braking.
Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
General notes
Pay attention to the important safety notes
(Ypage 105).
Do not rotate the head restraints of the front and
rear seats. Otherwise, you cannot adjust the
height and angle of the head restraints to the
correct position.
Adjusting the front head restraints
Adjusting the head restraints manually
With this function you can adjust the distance
between the head restraint and the back of the
seat occupant's head.
XTo move forwards: pull the head restraint
forwards in the direction of the arrow until it
engages in the desired position.
XTo move backwards: press and hold release
button :.
XPush the head restraint back.
XRelease the release button once the head
restraint is in the desired position.
XEnsure that the head restraint has engaged
properly.
Adjusting the luxury head restraint
mechanically
XTo adjust the side bolsters of the head
restraint: push or pull right and/or left-hand
side bolster :into the desired position.
XTo adjust the fore-and-aft position for-
wards: pull the head restraint forwards in the
direction of arrow ;until it engages in the
desired position.
XTo adjust the fore-and-aft position back-
wards: press and hold release button =.
XFold the head restraint backwards in the
direction of arrow;.
XLet go of release button =once the head
restraint is in the desired position.
XEnsure that the head restraint has engaged
properly.
Adjusting the EASY ADJUST luxury head
restraint mechanically
Seats115
Seats, steering wheel and mirrors
Z

Problems with the seat ventilation
ProblemPossible causes/consequences andMSolutions
The seat ventilation has
switched off prematurely
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 seat ventilation can be
switched back on.
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
:To adjust the steering wheel position (fore-
and-aft adjustment)
;To adjust the steering wheel height
iFurther related subjects:
REASY-ENTRY/EXIT feature (Ypage 122)
RStoring settings (Ypage 126)
ROperating the on-board computer
(Ypage 257).
Steering wheel heating
Switching on/off
120Steering wheel
Seats, steering wheel and mirrors

Position of the steering wheel and the
driver's seat for driving
The steering wheel and the driver's seat are
moved to the previously set position if:
Rthe driver's door is closed and you insert the
SmartKey into the ignition lock
Ryou close the driver's door when the ignition
is switched on
Ryou press the Start/Stop button once on vehi-
cles with KEYLESS-GO
iThe steering wheel and the driver's seat only
return to the last set position when the driving
position is stored after seat or steering wheel
adjustment.
The last position of the steering wheel or seat is
stored if:
Rthe ignition is switched off
Rthe setting is stored with the memory function
(Ypage 126).
Crash-responsive EASY-EXIT feature
If the crash-responsive EASY-EXIT feature is trig-
gered in an accident, the steering column will
move upwards when the driver's door is opened
or the SmartKey is removed from the ignition
lock. This makes it easier to exit the vehicle and
rescue the occupants.
The crash-responsive EASY-EXIT feature is only
operational if the EASY-EXIT/ENTRY feature is
activated in the multimedia system (see the sep-
arate operating instructions).
Mirrors
Rear-view mirror
XAnti-glare mode: flick anti-glare lever :for-
wards or back.
Exterior mirrors
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
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an acci-
dent.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder.
Adjusting the exterior mirrors
Mirrors123
Seats, steering wheel and mirrors
Z

XTurn the SmartKey to position1or 2in the
ignition lock (Ypage 162).
XPress button ;for the right-hand exterior
mirror or button =for the left-hand exterior
mirror.
The indicator lamp lights up in the button that
has been pressed.
The indicator lamp goes out again after some
time. You can adjust the selected mirror using
adjustment button :as long as the indicator
lamp is lit.
XPress adjustment button :up, down, or to
the left or right until you have adjusted the
exterior mirror to the correct position. You
should have a good overview of traffic condi-
tions.
The convex exterior mirrors provide a larger field
of vision.
After the engine has been started, the exterior
mirrors are automatically heated if the rear win-
dow defroster is switched on and the outside
temperature is low.
Folding the exterior mirrors in or out
electrically
XTurn the SmartKey to position 1or 2in the
ignition lock (Ypage 162).
XBriefly press button :.
Both exterior mirrors fold in or out.
iMake sure that the exterior mirrors are
always folded out fully while driving. They
could otherwise vibrate.
iIf you are driving faster than 30 mph
(47 km/h), you can no longer fold in the exte-
rior mirrors.
Setting the exterior mirrors
If the battery has been disconnected or com-
pletely discharged, the exterior mirrors must be
reset. The exterior mirrors will otherwise not
fold in when you select the "Fold in mirrors when
locking" function in the on-board computer.
XTurn the SmartKey to position 1or 2in the
ignition lock (Ypage 162).
XPress button :.
Folding the exterior mirrors in or out
automatically
When theAutomatic Mirror Foldingfunc-
tion is activated in the multimedia system (see
the separate operating instructions):
Rthe exterior mirrors fold in automatically as
soon as you lock the vehicle from the outside.
Rthe exterior mirrors fold out automatically
again as soon as you unlock the vehicle.
iIf the exterior mirrors have been folded in
manually, they do not fold out.
Exterior mirror pushed out of position
If an exterior mirror has been pushed out of
position, proceed as follows:
XPress and hold button :until you hear a click
and the mirror engages audibly into position
(
Ypage 124).
The mirror housing is engaged again and you
can adjust the exterior mirrors as usual
(
Ypage 123).
Automatic anti-glare mirrors
GWARNING
Electrolyte may escape if the glass in an auto-
matic anti-glare mirror breaks. The electrolyte
is harmful and causes irritation. It must not
come into contact with your skin, eyes, res-
piratory organs or clothing or be swallowed.
There is a risk of injury.
124Mirrors
Seats, steering wheel and mirrors

Useful information
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of publica-
tion of the Operator's Manual. Country-spe-
cific differences are possible. Please note
that your vehicle may not be equipped with all
features described. This also applies to
safety-related systems and functions.
iRead the information on qualified specialist
workshops (Ypage 28).
Exterior lighting
General notes
For reasons of safety, Mercedes-Benz recom-
mends that you drive with the lights switched on
even during the daytime. In some countries,
operation of the headlamps varies due to legal
requirements and self-imposed obligations.
Setting the exterior lighting
Setting options
Exterior lighting can be set using:
Rthe light switch
Rthe combination switch (Ypage 131)
Rthe on-board computer (Ypage 274)
Light switch
Operation
1 WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, license plate and
instrument cluster lighting
4ÃAutomatic headlamp mode, controlled
by the light sensor
5 LLow-beam/high-beam headlamps
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
XTurn the light switch to the Ãposition.
The exterior lighting (except the parking/stand-
ing lamps) switches off automatically if you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with the SmartKey in
position 0in the ignition lock
Automatic headlamp mode
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.
The automatic headlamp feature is only an aid.
The driver is responsible for the vehicle's light-
ing at all times.
Canada only:
The daytime running lamps improve the visibility
of your vehicle during the day. The daytime run-
ning lamps function is required by law in Can-
ada. It cannot therefore be deactivated.
When the engine is running and the vehicle is
stationary: if you move the selector lever from a
drive position to P, the daytime running lamps/
low-beam headlamps go out after three
minutes.
When the engine is running, the vehicle is sta-
tionary and in bright ambient light: if you turn the
light switch to the Tposition, the daytime
running lamps and parking lamps switch on.
If the engine is running and you turn the light
switch to the Lposition, the manual settings
take precedence over the daytime running
lamps.
USA only:
The daytime running lamps improve the visibility
of your vehicle during the day. Here, the Day‐
130Exterior lighting
Lights and windshield wipers

time Running Lightsfunction must be
switched on via the on-board computer
(
Ypage 274).
If the engine is running and you turn the light
switch to the TorL position, the manual
settings take precedence over the daytime run-
ning lamps.
à is the favored light switch setting. The light
setting is automatically selected according to
the brightness of the ambient light (exception:
poor visibility due to weather conditions such as
fog, snow or spray):
RSmartKey in position 1in the ignition lock: the
parking lamps are switched on or off auto-
matically depending on the brightness of the
ambient light.
RWith the engine running: if you have switched
on the DaytimeRunningLightsfunction in
the on-board computer, the daytime running
lamps or the parking lamps and low-beam
headlamps are switched on or off automati-
cally depending on the brightness of the ambi- ent light.
XTo switch on the automatic headlamps:
turn the light switch to the Ãposition.
Low-beam headlamps
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 the Lposition.
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 the
T position.
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 to the W(left-hand
side of the vehicle) or X((right-hand side
of the vehicle) position.
Combination switch
Turn signal
: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?.
Exterior lighting131
Lights and windshield wipers
Z

High-beam headlamps
XTo activate manually:turn the SmartKey in
the ignition lock to position 2or start the
engine.
XVehicles without Adaptive Highbeam Assist
Plus: turn the light switch to position Lor
Ã.
XVehicles with Adaptive Highbeam Assist Plus:
turn the light switch to the Lposition.
XPress the combination switch beyond the
pressure point in the direction of arrow :.
In the Ãposition, the high-beam head-
lamps are only switched on when it is dark and
the engine is running.
The blue Kindicator lamp in the instru-
ment cluster lights up when the high-beam
headlamps are switched on.
XTo switch off: move the combination switch
back to its normal position.
The blue Kindicator lamp in the instru-
ment cluster goes out.
Vehicles with Adaptive Highbeam Assist
Plus: if Adaptive Highbeam Assist Plus is acti-
vated, it automatically controls activation and
deactivation of the high-beam headlamps
(
Ypage 133).
High-beam flasher
XTo switch on: turn the SmartKey in the igni-
tion lock to position 1or 2, or start the engine.
XPull the combination switch in the direction of
arrow =.
Hazard warning lamps
XTo switch on the hazard warning lamps:
press button :.
All turn signals flash. If you now switch on a
turn signal using the combination switch, only
the turn signal lamp on the corresponding
side of the vehicle will flash.
XTo switch off the hazard warning lamps:
press button :.
The hazard warning lamps automatically switch
on if:
Ran air bag is deployed or
Rthe vehicle decelerates rapidly from a speed
of above 45 mph (70 km/h) and comes to a
standstill
The hazard warning lamps switch off automati-
cally if the vehicle reaches a speed of above
6 mph (10 km/h) again after a full brake appli-
cation.
The hazard warning lamps still operate if the
ignition is switched off.
Cornering light function
The cornering light function improves the illu-
mination of the road over a wide angle in the
direction you are turning, enabling better visi-
bility in tight bends, for example. It can only be
activated when the low-beam headlamps are
switched on.
Active:
Rif you are driving at speeds below 25 mph
(40 km/h) and switch on the turn signal or
turn the steering wheel
Rif you are driving at speeds between 25 mph
(40 km/h) and 45 mph (70 km/h) and turn
the steering wheel
The cornering lamp may remain lit for a short
time, but is automatically switched off after no
more than three minutes.
132Exterior lighting
Lights and windshield wipers

On vehicles with KEYLESS-GO:
XSwitch off the engine.
XRemove your foot from the brake pedal.
XSet the windshield wipers to position°.
XPress the Start/Stop button repeatedly until
the windshield wiper starts.
XWhen the wiper arms have reached the verti-
cal position, press the Start/Stop button
repeatedly until the windshield wipers stop.
XFold the wiper arms away from the windshield
until you feel them snap into place.
Removing the wiper blades
XPress both release clips ;.
XFold wiper blade:in the direction of
arrow =away from wiper arm ?.
XRemove wiper blade:in the direction of
arrow A.
Installing the wiper blades
XPosition the new wiper blade :with
recess Bon lug A.
XFold wiper blade :in the direction of
arrow =onto the wiper arm, until retaining
clips ;engage in bracket ?.
XMake sure that wiper blade :is seated cor-
rectly.
XFold the wiper arm back onto the windshield.
Replacing the wiper blades (MAGIC
VISION CONTROL)
Moving the wiper arms to a vertical posi-
tion
On vehicles without KEYLESS-GO:
XTurn the SmartKey to position 0in the ignition
lock (Ypage 162).
XSet the windshield wiper to position °on
the combination switch.
XTurn the SmartKey to position 1in the ignition
lock (Ypage 162).
XAs soon as the wiper arms are vertical to the
hood, turn the SmartKey to position 0in the
ignition lock (
Ypage 162).
XRemove the SmartKey.
XFold the wiper arms away from the windshield
until you feel them snap into place.
On vehicles with KEYLESS-GO:
XSwitch off the engine.
XRemove your foot from the brake pedal.
XSet the windshield wiper to the °position.
XPress the Start/Stop button repeatedly until
the windshield wiper starts.
XWhen the wiper arms have reached the verti-
cal position, press the Start/Stop button
repeatedly until the windshield wiper stops.
XFold the wiper arms away from the windshield
until you feel them snap into place.
Removing a wiper blade
XTo bring the wiper blade into position to
be removed: hold the wiper arm firmly with
Windshield wipers137
Lights and windshield wipers
Z