2021 MERCEDES-BENZ EQC SUV engine overheat

th
er information can be obtained at a qualified
specialist workshop.
The ASS YST PLUS service inter val display is only
an aid. The driver of theve hicle bears responsi‐
bility as rega rdsto whe ther maintenance work
needs tobe per form ed more of tenth an speci‐
fi ed based on the actual operating conditions
and/or loads. Batte
rydisconnection periods The ASS
YST PLUS service inter val display can
calculate the service due date only when the
battery is connec ted. #
Notedown the service due date displa yed on
th e instrument display before disconnecting
th e battery (/ page 299). Engine compartment
Opening and closing
the bonnet &
WARNING Risk of accident due todriv‐
ing with the bonn etunlo cked
The bonn etmay open and block your vie w. #
Neverre lease the bonn etwhen driving. #
Before every trip, ensure that the
engine bonn etis loc ked. &
WARNING Risk of accident and inju ry
when opening and closing the bonn et
The bonnet may suddenly drop into the end
position.
There is a risk of injury for an yone in the
engine bonn et's range of mo vement. #
Do not open or close the bonn etifth ere
is a person in the bonn et's range of
mo vement. &
WARNING Risk of inju rydue todrive
sy stem overheating
If yo u open the bonn etintheeve nt of an
ove rheated drive sy stem or fire inthe engine
compartment, thefo llowing situations may
occur:
R You may come into contact with hot
ga ses.
R You may come into contact with other
escaping hot operating fluids. #
Intheeve nt of overheating or a fire in
th e engine compartment, keep the bon‐
net closed and call thefire service. #
Allow theove rheated drive sy stem to
cool down if the engine must be
opened. &
WARNING Risk of inju rydue tomoving
parts
Components in the engine compartment can
continue torun or start unexpectedly even
when the drive sy stem is switched off. 300
Maintenance and care

R
at a qualified specialist workshop Note
s on brake fluid Obser
vethe no tes on operating fluids
(/ page 348). &
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 a brake fluid appr ovedby Mercedes-
Benz according toMB-F reigabe or MB-Appr oval
33 1.0. Coolant
Note
s on coolant
Obser vethe no tes on operating fluids
(/ page 348). &
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 drive sy stem tocool down
before youto 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 use 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 https://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. Te
ch nical da ta349

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
TEDama getothe drive sy stem due toinsuf ficient coolant #
Avoid long journe yswith insuf ficient coolant. #
Have the cooling sy stem of the drive sy stem checked at a qualified specialist workshop.
ÿ
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 drive sy stem. &
WARNING Risk of inju rydue todrive sy stem overheating
If yo u open the bonn etintheeve nt of an overheated drive sy stem or fire inthe engine compartment, thefo llow‐
ing situations may occur:
R You may come into contact with hot gases.
R You may come into contact with other escaping hot operating fluids. #
Intheeve nt of overheating or a fire inthe engine compartment, keep the bonn etclosed and call thefire
service. #
Allow theove rheated drive sy stem tocool down if the engine must be opened. #
Wait until the drive sy stem has cooled down. #
Make sure that the air supply totheve hicle radiator is not obstructed. Display messages and
warning/indicator lamps 367

Display (on-boa
rdcompu ter)
Displ ays on the multifunction displa y.... 251
Displ aymessage
Calling up (on-board compu ter)............ .355
No tes....................................................3 55
Display messages ¯ - - - km/h ..................................... 386
ç - - - km/h ..................................... 387
È - - - km/h ..................................... 387
# 12V battery See Owner's Man‐
ual......................................................... 372
ò Acoustic presence indicator
inoperative............................................ 366
: Active Light Sy stem inoperative... 362
é ATTENTION ASSIST inoperative ....385
é ATTENTION ASSIS T:Take a
break!....................................................3 86
: Automatic driving lights inoper‐
ative....................................................... 361
Û Battery overheated Stop,
eve rybody out! Outdoors if possible ......370 Á
Changekey bat teries ...................3 59
è Charger cable connected............. 368
J Check brake fluid le vel................. 384
ï Check trailer hitch lo ck................ 375
h Check tyre(s) ................................ 401
ÿ Coolant Stop vehicle Switch
engine off..............................................3 67
! currently una vailable See Own‐
er's Manual .......................................... .395
÷ currently una vailable See Own‐
er's Manual .......................................... .396
ä Fault Drive at max. 80 km/h........ 394
6 Front left malfunction Consult
wo rkshop (e xample).............................. 356
& inoperative Charge HV battery..... 364
& inoperative High-vol tage bat‐
te ry charging incomple te....................... 364
! inoperati veSee Owner's Man‐
ual......................................................... 396 ÷
inoperati veSee Owner's Man‐
ual......................................................... 397
T inoperati veSee Owner's Man‐
ual......................................................... 398
G Inoperati ve................................... 400
: Intelligent Light Sy stem inoper‐
ative...................................................... 362
Á Key not de tected (red displ ay
messa ge)............................................... 360
Á Key not de tected (white displ ay
messa ge)............................................... 360
: Left dipped beam (e xamp le)........ .361
6 Left windowbag malfunction
Consult workshop (e xample)................ .357
: Malfunction See Owner's Man‐
ual......................................................... 361
d Malfunction Visit workshop.......... 372
Û Malfunction Visit workshop.......... 371
d Malfunction.................................. 372
Û Malfunction.................................. 371424
Index