2018 MERCEDES-BENZ CLS COUPE coolant

If
th e engine oils lis ted in theta ble are not avail‐
able, you may add a maximum of 1.0 litr e ofthe
fo llowing engine oils once only:
R petrol engines: MB-Freigabe or MB-Appr oval
229. 31orAC EA C3
R diesel engines:
- CLS 300 d: ACEA C3
- allother models: MB-F reigabe or MB-
Appr oval 229. 51orAC EA C3
The following values referto an oil change,
including the oil filter.
Re placement amount Mode
lR eplacement
amount
CLS 300 d6 .8 litres
CLS 350 d9 .0 litres
CLS 350 6.6 litres
CLS 350 4MATIC 6.0 litres Mode
lR eplacement
amount
CLS 450 4MATIC 8.5 litres
All other models 8.0 litres Note
s on brake fluid Obser
vethe no tes on operating fluids
(→ page 452). &
WARNING Risk of an accident due to
va pour poc kets form ing in the brake sys‐
tem
The brake fluid cons tantly absorbs moi sture
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 replaced at a
qu alified specialist workshop.
Only use brake fluid appr ovedby Mercedes-Benz
according toMB-F reigabe or MB-Appr oval 33 1.0.
Yo u can obtain fur ther information on brake fluid
in thefo llowing places:
R inthe Mercedes-Benz Specifications for
Operating Fluids
- at http://be vo.mercedes-benz.com
- inthe Mercedes-Benz BeVo app
R at a qualified specialist workshop Coolant
Note
s on coolant
Obser vethe no tes on operating fluids
(→ page 452). &
WARNING Risk offire ‑ and inju ryfrom
antifreeze
If antifreeze comes into contact with hot
component parts in the engine compart‐
ment, it may ignite. Te
ch nical da ta459

#
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.
Information on coolant is available at thefo l‐
lowing locations:
R inthe Mercedes-Benz Specification for
Operating Fluids 310.1
- at http://be vo.mercedes-benz.com
- inthe Mercedes-Benz BeVo app
R at a qualified 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. Ha
ve the coolant regularly replaced at a qualified
specialist workshop.
The proportion of cor rosion inhibitor/antifreeze
concentrate in the engine cooling sy stem should
be:
R a minimum of 50% (antifreeze pr otection
down toappr oximately -37 °C)
R a maximum of 55% (antifreeze pr otection
down to-45 °C) Note
s on windscreen washer fluid Obser
vethe no tes on operating fluids
(→ page 452). &
WARNING ‑ Risk of fire and injury due to
windscreen washer concentrate
Wi ndsc reen 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 windsc reen washer
concentrate spills out next tothefiller
opening. *
NO
TEDama getotheex terior lighting
due tounsuitable windsc reen washer
fl uid Uns
uitable windsc reen washer fluids may
damage the plastic sur face of theex terior
lighting. #
Only use windscreen washer fluids
which are also suitable for use on plas‐ 460
Tech nical da ta

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 (→ page 393).
?
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 significant loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure
th at the coolant temp erature display remains below 120 °C. Displ
aymessa ges and warning/indicator lamps 493

Display messages
Possible causes/consequences and M
MSolutions
? *T
hefan mo tor is defective. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C.
#
See Owner's Manual *T
he battery is not being charge d.
* NO
TEPossible engine damage if you continue driving #
Do not continue driving under any circum stances. #
Consult a qualified specialist workshop. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. #
Consult a qualified specialist workshop. 494
Display messages and warning/indicator lamps

8
Fu
elreser vewith fuel filler flap loca‐
tion indicator (→ page 536)
? Coolant
too hot/cold (→ page 536)h
Ty
re pressure monitoring sy stem
(→ page 539) ï
Tr
ailer hit chis not operational or is
swivelling (→ page 534) Saf
ety sy stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
J Brake sy stem warning lamp
(yellow) The
yellow brake sy stem warning lamp is lit while the engine is running. &
WARNING Risk of an accident due toa brake sy stem malfunction
If th e brake sy stem is malfunctioning, braking characteristics may be impaired. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Adjust your speed and continue todrive carefull y,leaving a suitable dis tance totheve hicle in front. #
Ifth e multifunction display sho wsa display message, please obse rveth is. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 525

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 The coolant le vel is too 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. #
Obser vethe messages on 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 Display messages and
warning/indicator lamps 537

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
or #
exitth eve hicle and keep a safe dis tance from it until the engine has cooled down #
Check the coolant le vel (→ page 393). #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120 °C. 538
Displaymessa ges and warning/indicator lamps

THERMOTRONIC contro
l panel ............137
Ve ntilating theve hicle (con venience
opening) ................................................ 84
Wi ndsc reen heating ............................. 14 2
Climate style
Fu nction .............................................. 13 9
Setting ................................................. 13 9
Cockpit ........................................................ .6
Overview .................................................6
Cof fee cup symbol
see ATTENTION ASSIST
COMAND Online see Multimedia sy stem
COMAND Touch
Managing devices ................................ 294
Combination switch ................................124
Compass .................................................. 327
Compu ter
see On-board computer
Connection status
Displ aying ............................................ 355
Overview ............................................ .355 Connectivity
Switching transmission of theve hicle
position on/off .................................... 291
Contacts ................................................... 335
Calling up ............................................ 336
Deleting ............................................... 337
Downloading (from mobile phone) ...... 335
Importing ............................................ 336
Importing (o verview) .......................... .336
Information .......................................... 335
Making a call ....................................... 337
Na me form at ...................................... .336
Options ................................................ 337
St oring .................................................3 37
Controller Operating ............................................ 282
Con venience closing ................................. 84
Con venience opening ................................ 84
Coolant (engine) Check le vel .......................................... 393
No tes .................................................. 459
Cooling see Climate control Co
pyright .................................................... 31
Cornering light ........................................ .126
Cross Traf fic Alert .................................. .234
Crosswind Assist Function/no tes ................................... 186
Cruise control .......................................... 19 2
Ac tivating ............................................ .194
Buttons ................................................ 194
Calling up a speed .............................. .194
Deactivating ........................................ 194
Fu nction .............................................. 19 2
Re quirements ...................................... 194
Selecting .............................................. 194
Setting a speed .................................... 194
St oring a speed .................................... 194
Sy stem limitations ...............................1 92
Cup holder Rear .................................................... .115
Cup holder in the centre console
ins talling/ removing (auto matic
transmission) ....................................... 11 5 Index
549