engine MERCEDES-BENZ S-CLASS COUPE 2018 Service Manual

HOLD function
HOLD function
The HOLD function holdstheve hicle at a stand‐
st ill without requ iring youto depress the brake
pedal, e.g. when pulling away uphill.
Sy stem limitations
The HOLD function is only intended toprov ide
assis tance when driving and is not a suff icient
means of safeguarding theve hicle against rolling
aw ay when stationar y.
RThe incline must not be greater than 30%.
Ac tivating/deactivating the HOLD function
&
WARNING Risk of an accident due tothe
HOLD function being activated when you
lea vetheve hicle
If yo u lea vetheve hicle while only the HOLD
function is braking theve hicle, theve hicle
can rollaw ay inthefo llowing situations:
RIf th ere is a malfunction in the sy stem or
in the po wer supply.
RIfth e HOLD function is deactivated by
depressing the accelerator pedal or the
brake pedal, e.g. byave hicle occupant.
RIfth e electrics in the engine compart‐
ment, the battery or the fuses are tam‐
pered with or if the battery is disconnec‐
te d.
#Alw ays deactivate the HOLD function
and secure theve hicle against rolling
aw ay before leaving theve hicle.
* NO
TEDama gefrom au tomatic braking
When Active Brake Assi st,Ac tive Dis tance
Assist DISTRONIC or the HOLD function are
activated, theve hicle brakes autonomously
in cer tain situations.
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations:
#During towing
#In a car wash
Requirements:RThe vehicle is stationar y.
RThe driver's door is closed or the seat belt on
th e driver's side is fastened.
RThe engine is running or has been au tomati‐
cally switched off bythe ECO start/ stop
function.
RThe electric parking brake is released.
RAc tive Dis tance Assist DISTRONIC is deacti‐
va ted.
RThe transmission is in position h,kori.
Ac tivating the HOLD function
#Dep ress the brake pedal and af ter a short
time quickly depress fur ther until theë
display appears in the multifunction displa y.
#Release the brake pedal.
Deactivating the HOLD function
#Depress the accelerator pedal topull away.
or
#Depress the brake pedal until theë dis‐
play disappears from the multifunction dis‐
pla y.
174
Driving and pa rking

The HOLD function is deactivated inthefo llow‐
ing situations:
RAc tive Dis tance Assist DISTRONIC is acti va‐
te d.
RThe transmission is switched toposition j.
RThevehicle is secured with the electric park‐
ing brake.
In thefo llowing situations, theve hicle is held by
th e transmission position jorby the electric
parking brake:
RThe seat belt is unfas tened and the driver's
door is opened.
RThe engine is switched off.
RThere is a malfunction in the sy stem or the
po we r supply is insuf ficient.
AIR BODY CONT ROL
AIR BODY CONT ROL function
AIR BODY CONTROL is an air suspension sy stem
with variable damping for impr oved driving com‐
fo rt. The all-round le vel control sy stem ensures
th e best possible suspension and const ant
ground clearance, even wi tha laden vehicle.
When driving at speed, theve hicle is lo wered
automatically toimpr ovedriving saf etyand to re
duce fuel consum ption. The option of manually
adjusting theve hicle le vel is also available.
AIR BODY CONTROL comprises:
RAir suspension with automatic all-round le vel
control
RSpeed-dependent lo wering toreduce fuel
consum ption
RManually selecta ble high-level setting for
greater ground clearance
RADS PLUS (Adaptive Damping Sy stem with
const ant damping forc e adjustment)
RDY NA MIC SELECT switch and le vel button
Driving and parking 17
5

Vehicles with 360° Camera
1Parking Assist PARKTRONI Cis on ly oper a‐
tional in the front and rear
2Pa rking Assist PARKTRONI Cis operational
and can also warnthe driver about obs tacles
at the side of theve hicle
3Obs tacle de tected at the front right (orange)
and rear (red)
Sa ved obs tacles are del eted in thefo llowing sit‐
uations, forex ample:
RYo uswit choff theve hicle
RYo u open the doors Af
terth e engine is restar ted, obs tacles must be
de tected again, before a new warning can be
issued.
Sy stem limitations
The sy stem limitations forPa rking Assist
PA RKTRONI Cappl yfo r passive side impact pro‐
te ction.
The following objects are not de tected, forex am‐
ple:
RPe destrians who approach theve hicle from
th e side
RObjects placed next totheve hicle
Deactivating/activating Parking Assist
PA RKTRONIC
* NO
TERisk of an accident from objects
at close range
Pa rking Assist PARKTRONI Cma yno tde tect
cer tain objects at close range.
#When pa rking or maneuvering theve hi‐
cle, pay particular attention toany
objects which are abo veor below the
sensors, e.g. flowe r pots or dr awbars.
The vehicle or other objects could oth‐
erwise be damaged.
If indicator lamp 2is not lit, Parking Assist
PA RKTRONI Cis active. If the indicator lamp is lit
and theé symbol appears in the multifunc‐
tion displa y,Pa rking Assist PARKTRONI Cis no t
active.
#Press but ton 1.
18 0
Driving and pa rking

You can choose between two settings.
RStandard: normal sy stem sensitivity.
RSensitive: higher system sensitivity. The
driver is warned earlier and the attention
le ve l de tected byATTENTION ASSIST is adap‐
te d according ly.
If dr owsiness or increasing lapses in concentra‐
tion are de tected, theATTENTION ASSIST: Take
a Break! warning appears in the Instrument Dis‐
pla y.Yo u can ackn owledge the message and
tak e a break where necessar y.Ifyo udo not take
a break and ATTENTION ASSIST continues to
de tect increasing lapses in concentration, you
will be warned again af ter a minimum of
15 minutes.
You can ha vethefo llowing status information for
AT TENTION ASSIST displa yed in the assis tance
menu of the on-board computer:
RThe length of the journey since the last
break.
RThe attention le vel de term ined byATTENTION
ASSIS T.
If AT TENTION ASSIST is unable tocalculate the
attention le vel and cannot issue a warning, the
System Suspended messageappears.
If a warning is given in the Instrument Displa y,
th e multimedia sy stem of fers to sear chfor a rest
area. You can select a rest area and start naviga‐ tion
tothis rest area. This function can be activa‐
te d and deactivated in the multimedia sy stem.
If AT TENTION ASSIST is deactivated, theé
symbol appears in the assis tance graphic in the
Instrument Display when the engine is running.
AT TENTION ASSIST is activated automatically
when the engine is re-sta rted. The last selected
sensitivity le velre mains stored.
Sy stem limitations
AT TENTION ASSIST is active in the37 mph
(60 km/h) to124mp h (200 km/h) speed range.
The functionality of ATTENTION ASSIST is
re stricted, and warnings may be dela yed or not
occur at all in thefo llowing situations:RIf yo u ha vebeen driving for less than 30
minutes.
RIf th ero ad condition is poor (une venro ad
sur face or po tholes).
RIfth ere is a strong side wind.
RIfyo u adopt a sporty driving style (high cor‐
nering speeds or high rates of acceleration).
RIfth eSt eering Assist function of Active Dis‐
ta nce Assist DISTRONIC is acti ve.
19 2
Driving and pa rking

RIfth e time has been set incor rectly.
RIn acti vedriving situations, if youch ange
lanes and vary your speed frequentl y.
The ATTENTION ASSIST tiredness or alertness
assessment is dele ted and restar ted when con‐
tinuing the journey in thefo llowing situations:
RIf yo uswit choff the engine.
RIfyo u unfas tenyo ur seat beltand open the
driver's door (e.g. changing drivers or taking
a break).
Setting ATTENTION ASSIST
Multimedia sy stem:
,Vehicle.k Assistance.ATTEN-
TION ASSIST
Setting options
#Select Standard, SensitiveorOff.
Suggesting a rest area
#Select Suggest Rest Area .
#Activate Oor deacti vate the function ª.
If AT TENTION ASSIST de tects fatigue or
increasing la ckof attention, it suggests a
re st area in the vicinity.
#Select a sugges tedre st area.
Yo u are guided tothe selected rest area.
Traf fic Sign Assist
Fu nction of Traf fic Sign Assist
Tr af fic Sign Assist is only an aid. It cannot alw ays
re liably de tect the maximum permissible speed
and the applicable traf fic signs. The driver is
re sponsible for complying with the applicable
tra ffic regulations.
Driving and parking 19
3

Instrument Displayoverview
&
WARNING Risk of accident due toan
instrument display malfunction
If th e Instrument Display has failed or mal‐
functioned, you may not recognize function
re strictions applying tosaf etyre leva nt sys‐
te ms.
The operating saf etyof your vehicle may be
impaired.
#Drive on carefull y.
#Have theve hicle checked immediately
at a qualified specialist workshop.
Mercedes‑AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognize dangers.
If th e operating saf etyof your vehicle is
impaired, park theve hicle safely as soon as pos‐
sible. Contact a qualified specialist workshop. Instrument display
1Speedome
ter
2Multifunction display
3Ta ch ome ter
4Coolant temp erature gage
5Fu el le vel and fuel filler flap location indica‐
to r
% This display is an example. Inst ead oftach ‐
ome ter3 other displa ysare also possible.
The segments in speedome ter1 indica tethe
sy stem status forth efo llowing:
RCruise control (→page 160)
RAc tive Dis tance Assist DISTRONIC
(→pa ge 162)
Ve hicles with Traf fic Sign Assis t:De tected
instructions and traf fic signs appear in the
speedome ter (
→page 193).
* NO
TEEngine damage duetoexc essively
high engine speeds
The engine will be damaged if you drive with
th e engine in theov errevving range.
#Do not drive wi th the engine in theove r‐
re vving range.
In tach ome ter3 theove rrev ving range is
shown in red. When theove rrev ving range is
re ached, the fuel supply is inter rupted toprotect
th e engine.
During normal operating conditions, coolant
te mp erature display 4may rise to248 °F
(120 °C).
204 Instrument Display and on-board computer

&WARNING Danger of burn s when open‐
ing the hood
If yo u open the hood when the engine has
ove rheated or during a fire inthe engine
compartment, you could come into contact
wit h hot gases or other escaping operating
fl uids.
#Before opening the hood, allow the
engine tocool down.
#Intheeve nt of a fire inthe engine com‐
partment, keep the hood closed and
call thefire service.
Overview of the butto ns onthest eering
wheel
1¤ Back button, on-board computer
2Touch Control, on-board co mputer
3Control panel for cruise control or Active
Dis tance Assist DISTRONIC
4Control panel for multimedia sy stem:
£ LINGU ATRO NIC or voice control sys‐
te m
ß Displaysfa vo rite s
VO L: control knob, adjusts thevo lume or
switches the sound off 8
6 Makes/accepts a call ~
Rejects/ends a call
5ò Calls up the home screen
6To uch Control
7% Back butto n
Operating the on-boa rdcompu ter
&
WARNING Risk of dist raction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tion equipment integ rated in theve hicle
when driving, youwill be distracted from the
traf fic situation. This could also cause youto
lose control of theve hicle.
#Only operate this equipment when the
traf fic situation permits.
#If yo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and traf fic conditions and ope rate the
equipment with theve hicle stationar y.
Instrument Display and on-board computer 205

RGray radar waves next tovehicle: Blind Spot
Assist activated
RGreen radar waves next tovehicle: Blind Spot
Assist active
RAc tive Dis tance Assist DISTRONIC displa ys
(→page 162).
Calling up displays in theTr ip menu
On-board computer:
,Trip
% When you ha vethest yle set toProgressive,
yo u can view information on the journey in
th e left-hand area of the Instrument Displa y.
#Toselect a displa y:swipe upwards or down‐
wa rds on the left-hand Touch Control.
Dis playsintheTrip menu:
Rstandard display
Rra nge and cur rent fuel consump tion
A recuperation displ ayis also available for
cer tain engines. If there is only a small
amount of fuel left in the fuel tank, the dis‐ play sho
wsave hicle being refueled ins tead
of thera nge.
RECO displ ay(→page 135)
Rtrip computer From StartandFrom Reset
Rdigital speedome ter
% The digital speedome ter only appears in the
Classic andSport styles.
Example: standard display
1Trip dis tance
2To tal dis tance recorder
Example: trip compute r
1
To tal dis tance recorder
2Driving time
3Av erage speed
4Average fuel consum ption
Instrument Display and on-board computer 209

Voice command Function
Energy flow To
display energy flow settings
Ionization menu To
display ionization settings
Climate control menu To
display climate control settings
Automatic climate control driver on To
switch on the automatic climate control settings on the driver's side
Light menu To
display light settings
Massage menu To
display massage settings
Massage driver's seat on To
switch on the massage function forth e driver's seat
Massage driver's seat off To
switch off the massage function forth e driver's seat
Outside temperature To
display the outside temp erature
Engine data To
display engine data
Seats menu To
display seat adjustment settings
Seat heating front passenger level 2 To
set the seat heating forth e front passenger seat toleve l 2
Consumption menu To
display consum ption
Vehicle data To
display vehicle data
228
Voice Cont rol Sy stem

ASSYST PLUS serv ice interval display
Fu nction of the ASS YST PLUS serv ice interval
displ ay
The ASS YST PLUS service inter val display in the
instrument display pr ovides information on the
re maining time or dis tance be fore the next
service due date.
Yo u can hidethis service message using the
back button on the left-hand side of thesteering
wheel.
Yo u can obtain fur ther information concerning
th e servicing of your vehicle from a qualified
specialist workshop, e.g. an authorized
Mercedes-Benz Center.
Displaying the service due da te
On-board computer:
,Service.ASSYST PLUS
The next service due date is displa yed.
#To exitth e displa y:press the back button
on the left-hand side of thesteering wheel. Make sure
toobser vethefo llowing fur ther rela‐
te d subjec t:
ROperating the on-board computer
(→page 205).
Car rying out maintenance workatregular
inter vals
* NO
TEPremature wearthro ugh failure to
obser veservice due dates
Service workwhich is not car ried out at the
ri ght time or incomple tely can lead to
inc reased wear and damage totheve hicle.
#Alw ays obser vethe prescribed service
inter vals.
#Alw ays ha vethe prescribed service
wo rkcar ried out at a qualified specialist
wo rkshop.
Special service requ irements
The prescribed service inter val is based on nor‐
mal operation of theve hicle. Maintenance work will need
tobe per form ed more of ten if theve hi‐
cle is operated under arduous conditions or
increased loads.
Examples of arduous operating conditions:
Rre gular city driving with frequent intermedi‐
ate stops
Rmainly short-dis tance driving
Rfrequent operation in mountainous terrain or
on poor road sur faces
Rwhen the engine is of ten le ftidling for long
periods
Roperation in particula rly dusty condition s
and/o rif air-recirculation mod eis frequentl y
used
In these or similar operating conditions, ha vethe
interior air filter, engine air cleaner, engine oil
and oil filter etc. changed more frequently. The
tires must be checked more frequently if the
ve hicle is operated under increased loads. Fur‐
th er information can be obtained at a qualified
specialist workshop.
Maintenance and care 323