engine coolant MERCEDES-BENZ GLC COUPE 2019 Owners Manual

1
Speedom eter →
270
2 L Distance warning →
600
3 Ð Electric po werst eering malfunction →
605
4 #! Turn signal lights →
13 9
5 Multifunction display →
274
6 Rev counter →
270
7 ; Engine diagnostics →
601
8 % Diesel engine: preglow
9 ! Electric pa rking brake applied (red) →
593
A J Brakes (red) →
593
B ? Coolant too hot/cold →
601
C Coolant temp erature display →
270
D J Brakes (yell ow) →
593
E ! Electric parking brake (yell ow)→
593 F
! ABS malfunction →
593
G 6 Restra int sy stem →
593
H ü Seat belt not fastened →
599
I K High beam →
13 9
J L Low beam →
137
K 8 Fuelreser vewith fuel filler cap location
indicator →
601
L Fuel le vel indicator
M T Standing lights →
137
N R Rear fog light →
13 8
O h Tyre pressure monitor →
603
P å ESP®
OFF →
593
Q ÷ ESP®
→
593 At
aglance – Indicator and warning lamps (s tanda rd) 9

1
Speedom eter →
270
2 #! Turn signal lights →
13 9
3 Multifunction display →
274
4 R Rear fog light →
13 8
5 K High beam →
13 9
L Low beam →
137
T Standing lights →
137
6 Rev counter →
270
7 ? Coolant too hot/cold →
601
8 Coolant temp erature display →
270
9 L Distance warning →
600
A ü Seat belt not fastened →
599
B h Tyre pressure monitor →
603
C Ù Electric po werst eering malfunction →
605
D ! Electric pa rking brake (yellow) →
593 E
! Electric parking brake applied (red) →
593
F 6 Restra int sy stem →
593
G ï Trailer hit chnot operational →
605
H J Brakes (red) →
593
I 8 Fuelreser vewith fuel filler cap location
indicator →
601
J Fuel le vel indicator
K ä Suspension malfunction →
600
L J Brakes (yellow) →
593
M # Electrical fault →
601
N ; Engine diagnostics →
601
O % Diesel engine: preglow
P ! ABS malfunction →
593
Q å ESP®
OFF →
593
÷ ESP®
→
593 At
aglance – Indicator and warning lamps (widesc reen cockpit) 11

R
Limiter (/ page213)
R Active Dis tance Assi stDISTRONIC
(/ page 216)
* NO
TEEngine dama gedue toexc 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. The fuel supply will be inter
rupted toprotect the
engine when there d mark on there v counter
(o ve rrev ving range) is reached.
During no rmal operating conditions, the coolant
te mp erature display 4may rise to120 °C. &
WARNING Danger of bu rns when open‐
ing 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 with hot gases or other escaping
operating fluids. #
Before opening the bonn et, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the engine bonn et
closed and call thefire service. Ve
hicles with a 48 V on-board electrical sys‐
te m (EQ Boo sttech nology) R
POWER 1shows th e electrical drive sup‐
port as a percentage.
R CHARGE 2showsthe electric mo tor's recu‐
peration po wer per form ance as a percent‐
age. õ
showsthe drive sy stem's operational read‐
iness. Overview of
the but tons on thest eering
wheel 1
¤ Back/Home button (press and hold),
on-board computer
2 Touch Control, on-board co mputer
3 Control panel for cruise control/limiter or
Ac tive Dis tance Assi stDISTRONIC
4 Control panel for MBUX multimedia sy stem:
£ LINGU ATRO NIC
ß Displa ysfavo urites In
stru ment Display and on-board computer 271

Fu
rther displa yson the multifunction display:
Z Gearshift
recommendation (/ page 183)
ë Active Parking Assist activated
(/ page 249)
é Parking Assist PARKTRONIC deacti vated
( / page 237, 236, 237)
¯ Cruise control (/
page212)
È Limi
ter (/ page213)
ç Active Dis tance Assi stDISTRONIC
(/ page 216)
æ Ac
tive Brake Assi st (/ page 211)
è Active Steering Assist (/ page 222)
à Ac
tive Lane Keeping Assist (/ page 260)
± Active Lane Change Assi st (/ page 224)
è ECO
start/ stop function (/ page172)
ë HOLD fu
nction (/ page 228)
_ Ad
aptive Highbeam Assist (/ page142)
Ad aptive Highbeam Assist Plus
(/ page 143)
ð Maximum pe rmissible speed exceeded
(for cer tain countries only) Ve
hicles with Traf fic Sign Assis t:de tected
instructions and traf fic signs (/ page 255). Ad
justing the in stru ment lighting #
Turn brightness control 1up or down.
The lighting of the instrument display and in
th e control elements of theve hicle interior is
adjus ted. Menus and submenus
Fu
nctions on the service menu of the on-
board compu ter On-board computer:
4 Service #
Toselect the function: swipe upwards or
down wards on the left-hand Touch Control. #
Press the left-hand Touch Control.
Fu nctions on theServicemenu:
R Message memory (/ page 538)
R AdBlue: Adblue ®
ra nge and fill le vel
R Tyres:
- Check the tyre pressure with the tyre
pressure monitor (/ page 505)
- Restart the tyre pressure monitor
(/ page 506)
R ASSYST PLUS: call up the service due date
(/ page 460)
R Vehicles with a widescreen cock pit:Cool-
ant: coolant temp erature display
R Engine oil level: engine oil le vel Instrument Display and on-board computer
275

Checking
the coolant le vel &
WARNING Risk of bu rns from hot com‐
ponent parts in the engine compartment
Cer tain components in the engine compart‐
ment can be very hot, e.g. the engine, the
ra diator and parts of theex haust sy stem. #
Allow the engine tocool down and only
to uch co mponent parts described in
th efo llowing. &
WARNING Danger of bu rns when open‐
ing 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 with hot gases or other escaping
operating fluids. #
Before opening the bonn et, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the engine bonn et
closed and call thefire service. &
WARNING Risk of scalding from hot
coolant
The engine cooling sy stem is pressurised,
particularly when the engine is warm. If you
open the cap, you could be scalded byhot
coolant spr aying out. #
Let the engine cool down before open‐
ing the cap. #
When opening the cap, wear pr otective
gl ove s and saf etygl asses. #
Open the cap slowly torelease pres‐
sure. #
Park theve hicle on a le vel sur face. #
Check the coolant temp erature display in the
instrument clus ter.
The coolant temp erature must be below
70 °C. #
Slowly turn cap 1anti-clockwise torelie ve
ov erpressure. Maintenance and care
467

#
Continue turning cap 1anti-clockwise and
re mo veit.
The coolant le vel is cor rect in thefo llowing
cases:
R ifth e engine is cold, up tomar ker bar 2
R ifth e engine is warm, up to1.5 cm over
mar ker bar 2 #
If necessar y,top up with coolant that has
been appr ovedfo r Mercedes-Benz.
R Further information on coolant
(/ page 533). To
pping up the windsc reen washer sy stem &
WARNING Risk of bu rns from hot com‐
ponent parts in the engine compartment
Cer tain components in the engine compart‐
ment can be very hot, e.g. the engine, the
ra diator and parts of theex haust sy stem. #
Allow the engine tocool down and only
to uch co mponent parts described in
th efo llowing. &
WARNING Danger of bu rns when open‐
ing 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 with hot gases or other escaping
operating fluids. #
Before opening the bonn et, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the engine bonn et
closed and call thefire service. &
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. #
Remo vecap 1bytheta b. #
Top up thewa sher fluid. Ke
eping the air-water duct free #
Keep the area between the bonn etand the
windscreen free of deposits, e.g. ice, sn ow
and lea ves. 468
Maintenance and care

The
following values referto an oil change,
including the oil filter.
Re placement amount Mode
lR eplacement
amount
GLC 300 d 4MATIC 6.8 litres
GLC 400 d 4MATIC 8.0 litres
All other models 6.0 litresNote
s on brake fluid Obser
vethe no tes on operating fluids
(/ page 526). &
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 526). &
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. Te
ch nical da ta533

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 526). &
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‐
tic sur faces, e.g. MB SummerFit or MB
Wi nterFit. *
NO
TEBlocked spr aynozzles caused by
mixing windscreen washer fluids #
Do not mix MB SummerFit and MB Win‐
te rFit with other windscreen washer flu‐
ids. Do not use distilled or de-ionised
water asthefill
le ve l sensor may be triggered er roneously.
Re commended windscreen washer fluid:
R Abo vefreezing point: e.g. MB SummerFit
R Below freezing point: e.g. MB WinterFit 534
Tech nical da ta

Engine
Display messages
Possible causes/consequences and M
MSolutions
? Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. #
Stop theve hicle immediately in accordance with the 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 impaired. #
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.
+
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 467). Display messages and
warning/indicator lamps 563

Display messages
Possible causes/consequences and M
MSolutions #
Have the cooling sy stem checked at a qualified specialist workshop.
? *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.
To switch off the engine,
press Start/Stop button
for at least 3 seconds or 3
times. *Y
ou ha vepressed thest art/ stop button while driving. #
Toswitch off the engine while driving, see (/ page166).
# 12 V bat tery See Owner's
Manual * #
Switch off electrical consumers that are not required.
To charge the battery: #
Lea vethe engine running for a few minutes, or drive an extended di stance.
*I fth e message appears while the engine is running, this indicates an on-board elect rical sy stem malfunction. #
Consult a qualified specialist workshop.
# 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. 564
Display messages and warning/indicator lamps