2018 MERCEDES-BENZ E-CLASS COUPE engine overheat
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&WARNING Risk of accident due tothe
brake sy stem overheating
If yo u lea veyour foot on the brake pedal
when driving, the brake sy stem may over‐
heat.
This increases the braking dis tance and the
brake sy stem may evenfa il.
#Ne ver use the brake pedal as a foot re st.
#Do not depress the brake pedal and the
accelerator pedal at the same time
while driving.
* NO
TEWearing out the brake linings by
continuously dep ressing the brake pedal
#Do not depress the brake pedal contin‐
uously whilst driving.
#To use the braking ef fect of the engine,
shift toa lo werge ar in good time.
* NO
TEDama getothe driv etra in and the
engine when pulling away
#Do not warm upthe engine when the
ve hicle is stationar y.Pull away immedi‐
atel y.
#Avoid high engine speeds and driving at
full thro ttle until the engine has reached
operating temp erature.
#Do not allow the wheels tospin.
* NO
TEDama getothe catalytic con verter
due tonon-combu sted fuel
The engine is not running smoot hly and is
misfiring.
Non-combus ted fuel may get into the cata‐
lytic con verter.
#Only depress the accelera tor pedal
slightl y.
#Have the cause rectified immediately at
a qu alified specialist workshop.
Limited braking ef fect on salt-treate dro ads:
Rdue tosalt build-up on the brake discs and
brake lining, the braking dis tance can
increase conside rably or result in braking
only on one side.
Rmaintain a much greater dis tance totheve hi‐
cle in front.
To preve nt salt build-up:
Rbrake occasionally while paying attention to
th e tra ffic conditions.
Rcarefully depress the brake pedal at the end
of the journey and when starting the next
journe y.
ECOstart/s top function
Opera tion of the ECO start/s top function
The engine is au tomatically switched off if the
fo llowing conditions are me t:
RIfyo ubr ake theve hicle toast andstill in
transmission position hori.
RIf all vehicle conditions for an au tomatic
engine stop are met.
Driving and parking 13
3
Page 162 of 486
The moment ofwarning or inter vention can be
adjus ted as follo ws :
#Select $ F W L Y H % U D N H $ V V L V W : D U Q L Q J % U D N H
$ S S O L F D W L R Q ( D U O \: your selection isretained
when theve hicle is next star ted.
#Select $ F W L Y H % U D N H $ V V L V W : D U Q L Q J % U D N H
$ S S O L F D W L R Q 0 H G L X P :yo ur selection is
re tained when theve hicle is next star ted.
#Select $ F W L Y H % U D N H $ V V L V W : D U Q L Q J % U D N H
$ S S O L F D W L R Q / D W H: your selection isretained
when theve hicle is next star ted.
#Select $ F W L Y H % U D N H $ V V L V W : D U Q L Q J % U D N H
$ S S O L F D W L R Q 2 I I:
Ve hicles without Driving Assistance pack‐
age: The dis tance warning function and the
autonomous braking function are deactiva‐
te d. When theve hicle is next star ted, the
middle setting is auto matically selected.
Ve hicles with Driving Assistance pack‐
age: The dis tance warning function and the
autonomous braking function are deactiva‐
te d. Evasive Steering Assist is una vailable.
When the ignition is next star ted, the middle
setting is selected automatically and Evasive
St eering Assist is available.
% When Active Brake Assi stis deactivated, the
æ symbol appears inthe assis tance
graphic in the multifunction displa y.
Speed control cruise control
Function of cruise control
Cruise cont rol accelerates and brakes theve hi‐
cle automatically in order tomaintain a pr evi‐
ously stored speed.
If yo u accelerate toove rtake, forex ample, the
st ored speed is not dele ted. If youre mo veyour
fo ot from the accelerator pedal af terove rtaking,
cruise control will resume speed regulation back
to thestored speed.
Yo u can operate cruise cont rol with the cruise
control le ver.
If yo ufa ilto adapt your driving style, cruise con‐
trol can neither reduce therisk of an accident
nor override the la wsof ph ysics. It cannot take
into account road, weather or traf fic conditions.
Cruise control is only an aid. You are responsible fo
rth e dis tance totheve hicle in front, forve hi‐
cle speed, for braking in good time and forst ay ‐
ing in lane.
Sy stem limitations
Cruise control may be unable tomaintain the
st ored speed on uphill gradients. The stored
speed is resumed when the gradient evens out.
Change into a lo werge ar in good time on long
and steep downhill gradients. Take particular
no te ofthis when driving a laden vehicle. By
doing so, youwill make use of the braking ef fect
of the engine. This relie vesth e load on the brake
sy stem and pr events the brakes from overheat‐
ing and
wearin
g tooqu ickl y.
Do not use cruise control in thefo llowing situa‐
tions:
RIn traf fic situations whi chrequ ire frequent
ch anges of speed, e.g. in heavy traf fic, on
winding roads
ROn slippery roads. Accelerating can cause
th e drive wheels tolose traction and the
ve hicle could then skid
RWhen visibility is poor
16 0
Driving and pa rking
Page 163 of 486
Operating cruise control
&WARNING Risk of accident due to
unkno wnstored speed
If yo u call up thestored speed and this is
lo we rth an your cur rent speed, theve hicle
decelerates.
If yo udo not kn owthestored speed, the
ve hicle could decelerate unexpectedl y.
#Take into account the tra ffic situation
before calling up thestored speed.
#If th estored speed is not known, store
th e desired speed again.
Change into a lo werge ar in good time on long
and steep downhill gradients. Take particular
no te ofthis when driving a laden vehicle. By
doing so, youwill make use of the braking ef fect
of the engine. This relie vesth e load on the brake
sy stem and pr events the brakes from overheat‐
ing and wearing tooqu ickl y.
Re quirements
RCruise control is selected.
RESP®must be switched on, but not inter ven‐
ing.
RThe driving speed must be at least15mp h
(20 km/h).
#St ore cur rent speed 2(once af terst arting
th eve hicle).
or
#Call up stored speed 2.
#Deactivate cruise contro l1.
#Press the le ver brief ly:th estored speed is
increased 3orreduced
4 by1mp h (1 km/h).
or
#Press the le ver be yond the pressure point:
th estored speed is increased 3orreduced
4 by5mp h (10 km/h).
Driving and parking 16
1
Page 382 of 486
#Thoroughly clean off any antifreeze
from component parts beforestarting
th eve hicle.
* NO
TEDama gecaused byincor rect cool‐
ant
#Only add coolant that has been pre‐
mixed with therequ ired antifreeze pro‐
te ction.
Fu rther information on coolant:
RIn the Mercedes-Benz Specifications for
Operating Fluids 310.1, e.g. online at
http://be vo.mercedes-benz.com.
RAt aqu alified specialist workshop.
* NO
TEOverheating at high outside tem‐
peratures
If an inappro priate coolant is used, the
engine cooling sy stem is not suf ficiently pro‐
te cted against overheating and cor rosion at
high outside temp eratures.
#Alw ays use coolant appr ovedby
Mercedes-Benz.
#Obser vethe instructions in the
Mercedes-Benz Specifications for Oper‐
ating Fluids 310.1.
Ha ve the coolant regularly changed at a qualified
specialist workshop.
The proportion of cor rosion inhibitor/antifreeze
concentrate in the engine cooling sy stem should
be:
RA minimum of 50% (antifreeze pr otection
down toappr oximately -35 °F (-37 °C)).
RA maximum of 55% (antifreeze pr otection
down to-49 °F (-45 °C)).
Coolant filling capacity
Capacity
Model Capacity
All models 12.7 US qt (12.0 l)
Note s on windshield washer fluid
Obser vethe no tes on operating fluids
(→page 376).
&
WARNING ‑ Risk of fire and injury from
windshield washer concentrate
Wi ndshield washer concentrate is highly
fl ammable. It could ignite if it comes into
con tact wi thhot engine component parts or
th eex haust sy stem.
#Make sure that no windshield washer
concentrate spills out next tothefiller
opening.
* NO
TEDama getotheex terior lighting
due tounsuitable windshield washer fluid
Uns uitable windshield washer fluid may dam‐
age the plastic sur face of theex terior light‐
ing.
#Only use windshield washer fluid which
is also suit ablefor use on plast ic surfa‐
ces, e.g. MB SummerFit or MB Winter‐
Fit.
380 Tech nical da ta
Page 413 of 486
Displaymessages
Possible causes/consequences and MSolutions
?
& R R O D Q W 7 R R + R W 6 W R S 9 H K L
F O H 7 X U Q ( Q J L Q H 2 I I*T
he coolant is too hot.
#Pull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions.
&
WARNING Danger of burn s when opening the hood
If yo u open the hood when the engine has overheated or during a fire inthe engine compartment, you could
come into contact with hot gases or other escaping operating fluids.
#Before opening the hood, allow the engine tocool down.
#Intheeve nt of a fire inthe engine compartment, keep the hood closed and call thefire service.
#Wa it until the engine has cooled down.
#Make sure that the air supply tothera diator is not obstructed.
#Av oiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 248 °F (120 °C).
Display message s andwarning/indicator lamps 41
1
Page 424 of 486
Displaymessages
Possible causes/consequences and MSolutions
7 U D Q V P L V V L R Q 0 D O I X Q F W L R Q
6 W R S *
The transmission is malfunctioning. The transmission shifts toposition iautomaticall y.
#Pullover and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
#Switch the transmission toposition j.
#Consult a qualified specialist workshop.
5 H Y H U V L Q J 1 R W 3 R V V L E O H
6 H U Y L F H 5 H T X L U H G *T
he transmission is malfunctioning. Reversege ar can no longe r be engaged.
#Visit a qualified specialist workshop.
6 W R S 9 H K L F O H / H D Y H ( Q J L Q H
5 X Q Q L Q J : D L W 7 U D Q V P L V V L R Q
& R R O L Q J *T
he transmission has overheated. Pulling away can be temp orarily impaired or not possible.
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances.
#St art the engine.
#Wa it until the display message disappears before pulling away.
$ X [ L O L D U \ % D W W H U \ 0 D O I X Q F
W L R Q *T
he auxiliary batteryforth e transmission is no longer being charge d.
#Visit a qualified specialist workshop.
#Un tilthen, manually set the transmission toposition jbefore you switch offthe engine.
#Before leaving theve hicle, apply the electric parking brake.
$ L U & R Q G L W L R Q L Q J 0 D O I X Q F
W L R Q 6 H H 2 S H U D W R U
V 0 D Q X D O *O
peration of the climate control sy stem is temp orarily restricted. Air flow and fresh air supply are set toautomatic
mode.
#Ha ve the climate control sy stem checked at a qualified specialist workshop.
422
Display messages and warning/indicator lamps
Page 446 of 486
Warning/indicator lamp
Possible causes/consequences and MSolutions
?
Coolantwarning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes are:RThe temp erature sensor is malfunctioning
RThe coolant le vel is too low
RThe air supply tothera diator is obstructed
RThe radiator fan is de fective
If th ere is an additional warning tone, the coolant temp erature has exceeded 248 °F (120 °C).
&
WARNING Danger of burn s when opening the hood
If yo u open the hood when the engine has overheated or during a fire inthe engine compartment, you could come
into contact with hot gases or other escaping operating fluids.
#Before opening the hood, allow the engine tocool down.
#Intheeve nt of a fire inthe engine compartment, keep the hood closed and call thefire service.
#Pull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances.
#Obser vethe messages in the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale:
#Consult a qualified specialist workshop.
444
Displaymessage s andwarning/indicator lamps
Page 460 of 486
ÐSteering Malfunction Inc reased
Ph ysical Ef fort See Opera tor's Man‐
ual .......................................................4 24
ÐSt eering Malfunction Stop
Immediately See Operator's Manual ....424
èSt eering Pilot Cur rently Unavail‐
able See Operator's Manual ................ 409
èSt eering Pilot Inoperative ............ 409
St op Vehicle Lea veEngine Running
Wa itTransmission Cooling .................. 422
#St opVehicle Lea veEngine Run‐
ning ...................................................... 413
#St opVehicle See Operator's
Manual .................................................4 12
ÉSt opVehicle Vehicle Too Low ...... 402
bSwitch Off Lights .........................428
bSwitch On Headlamp s................. 428
Ti re Press. Monitor Cur rently
Un available .......................................... 416
Ti re Press. Monitor Inoperative ............417 Ti
re Pressure Monitor Inoperative No
Wheel Sensors .....................................4 17
Ti re s Overheated ..................................4 17
Ti re s Overheated Decrease Speed .......418
To Deselect P or N,Dep ress Brake
and Start Engine .................................. 420
To Engage Transmiss. Position R Fir st
Dep ress the Brake .............................. .4
23
Tr af fic Si
gn Assist CameraView
Re stricted See Ope rator's Manual .......408
Tr af fic Sign Assist Currently Unavail‐
able See Operator's Manual ................ 407
Tr af fic Sign Assist Inoperative............. 408
Tr ansmission Malfunction Stop ........... 422
FTu rnOn the Ignition to Release
th ePa rking Brake ................................ 390
dVe hicle Operational Switch the
Ignition Off Before Exiting .................... 421
ÉVe hicle Rising Please Wait.......... .402
ÉVe hicle Rising .............................. 401 hWa
rning Tire Malfunction .............416
hWheel Sensor(s) Missing ..............417
Distance cont rol
see Dis tance Pilot DISTRONIC
Di stance Pilot DISTRONIC ...................... .162
Ac tivating ............................................ 165
Ac tivation conditions ........................... 165
Ac tive Emergency Stop Assist .............. 171
Ac tive Lane Change Assi st................... 170
Callin g up a speed .............................. .165
Deactivating ........................................ 165
Fu nction .............................................. 162
Le ver ................................................... 165
Setting a speed ................................... 165
St oring a speed ................................... 165
Sy stem limits ....................................... 162
Distance recorder .................. ...
...............
210
DISTRONIC see Di stance Pilot DI STRONIC
Door Locking (emergency key) ...................... .63
Opening (from inside) ............................5 9
Un locking (emer gency key) .................. .63
458
Index