2017 MERCEDES-BENZ E-CLASS SALOON engine overheat

&
WARNING Risk of an accident due to
va pour poc kets form ing in the brake sys‐
tem
The brake fluid constantly absorbs moisture
from the air. This lo wersthe boiling point of
th e brake fluid. If the boiling point is too lo w,
va pour poc kets may form inthe brake sys‐
te m when the brakes are applied hard.
This impairs the braking ef fect. #
Have the brake fluid rene we d at the
specified inter vals. Ha
ve the brake fluid regularly changed at a quali‐
fi ed specialist workshop.
Only use brake fluid appr ovedby Mercedes-Benz
according toMB-F reigabe or MB-Appr oval 33 1.0.
Fu rther information on brake fluid:
R inthe Mercedes-Benz Specifications for
Operating Fluids at http://be vo.mercedes-
benz.com
R at a qualified specialist workshop Coolant
Note
s on coolant
Obser vethe no tes on service products
(→ page 368). &
WARNING Risk offire ‑ and inju ryfrom
antifreeze
If antifreeze comes into contact with hot
component parts in the engine compart‐
ment, it may ignite. #
Allow the engine tocool down before
yo uto p up the antif reeze. #
Make sure that no antifreeze spills out
next tothefiller opening. #
Thoroughly clean the antif reeze from
component parts before starting the
ve 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:
R Inthe Mercedes-Benz Specifications for
Operating Fluids 310.1, e.g. online at
http://be vo.mercedes-benz.com.
R Ataqu alified specialist workshop. *
NO
TEOverheating at high outside tem‐
peratures If an inapp
ropriate 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. Te
ch nical da ta375

Engine
Display messages
Possible causes/consequences and M
MSolutions
Top up coolant See Own-
er’s Manual *T
he coolant le vel is too lo w.
* NO
TEEngine dama gedue toinsuf ficient coolant #
Avoid long journe yswith insuf ficient coolant. #
Add coolant .
?
Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Wait until the engine has cooled down. #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding 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 120 °C. Displ
aymessa ges and warning/indicator lamps 407

Display messages
Possible causes/consequences and M
MSolutions
Tyre(s) overheated Reduce
speed *A
t least one tyre is overheating. &
WARNING Risk of an accident from driving wi thove rheated tyres
Overheated tyres may bur st, particularly at high speeds. #
Reduce speed so that the tyres cool down. #
Reduce speed so that the tyres cool down. Key
Display messages
Possible causes/consequences and M MSolutions
 Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop.
, Replace key See Owner's
Manual *
Ve hicles with a digital vehicle key:only a few or no authorisations remain forst arting the engine. #
Make sure that the internet connection is not limited bycer tain mobile phone settings. #
Open the Mercedes me connect web app http://www.mercedes.me. and call up the digital vehicle key service. #
Deactivate the service firs t and then activate it again. #
Ifth e display message still appears, con tact the Mercedes-Benz Cus tomer Assis tance Center (C AC). Display messages and
warning/indicator lamps 421

Display messages
Possible causes/consequences and M
MSolutions
Transmission Malfunction
Stop *
The transmission is malfunctioning. The transmission shifts toposition iautomaticall y. #
Pull over 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.
Reversing not poss. Con-
sult workshop *T
he transmission is malfunctioning. Reversege ar can no lon ger be engaged. #
Consult a qualified specialist workshop.
Stop vehicle Leave engine
running Wait Transmission
cooling *T
he transmission is overheating. Pulling away may 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. #
Lea vethe engine running. #
Wait until the display message disappears before pulling away.
Auxiliary battery malfunc-
tion *T
he auxiliary batteryforth e transmission is no longer being charge d. #
Consult a qualified specialist workshop. #
Untilthen, alw ays manually set the transmission toposition jbefore you swit choff the engine. #
Before leaving theve hicle, apply the electric parking brake. Display messages and
warning/indicator lamps 427

Display messages
Possible causes/consequences and M
MSolutions
Depress clutch fully to
start engine *Y
ou ha veattem ptedto start the engine without depressing the clutch pedal. #
Depress the clutch pedal and then start the engine.
The engine has stalled while theve hicle was pulling away, e.g. because the clutch pedal wasre leased tooqu ickl y. #
Dep ress the clutch pedal again.
The engine starts automaticall y. #
Slowly release the clutch pedal topull away.
Clutch overheated Avoid
pulling away for XX:XX mins *T
he clutch is under considerable load and is overheating.
Av oid frequent pulling away and driving at walking pace over longer dis tances. #
Stop theve hicle, paying attention toroad and traf fic conditions, and le avethe engine running.
The clutch is cooled more quickly when the engine is running.
or #
If possible, continue driving at a steady speed and remo veyour foot from the clutch pedal. Do not ride the
clutch.
The clutch is cooled while theve hicle is in motion.
When the clutch has cooled down, the display message will disappear.
Air conditioning Malfunc-
tion See Owner's Manual *O
peration of the climate control sy stem is temp orarily restricted. Air flow and fresh air supply are set toautomatic
mode. #
Have the climate control sy stem checked at a qualified specialist workshop. 428
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
? Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R Coolant le velto o low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. Do not con‐
tinue 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. 452
Display messages and warning/indicator lamps

Ad
aptive Highbeam Assist cur rently
una vailable See Owner's Manual .........438
Ad aptive Highbeam Assist inopera‐
tive ...................................................... 437
Ad aptive Highbeam Assist Plus Cam‐
era view restricted See Owner's
Manual ................................................ 437
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .437
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .436
4 Add 1 litre engine oil when
next refuelling ...................................... 413
Air conditioning Malfunction See
Owner's Manual .................................. 428
App lybrake todeselect Park (P)
position ...............................................4 25
Apply brake toselect R ....................... 429 À
ATTENTION ASSIST
inoperative .......................................... 399
À ATTENTION ASSIS T:Take a
break! .................................................. 399
b AUTO lights inope rative .............. 436
Au xilia rybattery malfunction ...............427
_ Before starting the engine, turn
th esteering wheel. .............................. 429
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 402
Blind Spot Assist inope rative ............... 403
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 03
Brake immediate ly............................... 391
 Change key bat teries ................. 422
Ø Check AdBlue See Owne r’s
Manual .................................................4 16
J Check brake fluid le vel.............. .391
4 Check eng. oil le v.when next
re fuelling .............................................. 411j
Check trailer hit chlock .............. 424
h Check tyre(s) .............................. 41 8
! Clean the fuel filter .................... .414
Clutch overheated Avoid pulling away
fo r XX:XX mins ................................... .428
? Coolant Stop vehicle Switch
engine off ............................................ 407
Cruise contro l and Limiter inope ra‐
tive ...................................................... 406
Cruise control inope rative ................... 405
Cruise control off ................................ 405
! currently una vailable See Own‐
er's Manual ........................................ .383
÷ currently una vailable See Own‐
er's Manual ........................................ .384
Dep ress clutch fully tostart engine .....4 28
È .................................................... 406
Ø Eng.start not possible in XXX
km ...................................................... .416
Ø Eng.start not possible ................416 Index
465