engine MERCEDES-BENZ EQC SUV 2021 Owner's Manual

on
the supply voltage, the cur rent intensity and
th e type of po wer supp ly.
The ratedvo ltage range foryo ur vehicle can be
fo und on the information label in the soc ket
co ver (/ page163). Tr
ailer hitch Gene
ral no tes on the trailer hit ch Modifications
tothe engine cooling sy stem may
be necessar y,depending on theve hicle model.
The retrofitting of a trailer hitch is only pe rmissi‐
ble if a towing capacity is specified in your vehi‐
cle documents.
Fu rther information can be obtained at a quali‐
fi ed specialist workshop. Mounting dimensions of
the trailer hit ch 1
Fastening points
2 Overhang dimension
3 Rear axle centre line The
overhang dimension and fastening points
are valid for a trailer hitch ins talled at thefa c‐
to ry. Model
2 2Over‐
hang dimen‐ sion
All model s1 082 mm To
wing capacity The
tongue weight is not included in theto wing
capacity. All models
Braked (at a minimum
start-
off gradeability of 8%) 18
00 kg
Braked (at a minimum start-
off gradeability of 12%) 18
00 kg
Unb rake d7 50kg Te
ch nical da ta353

Display messages
Possible causes/consequences and M
MSolutions
Á Key not detected (white dis‐
play message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot forst arting with theke y (/ page152).
Á Key not detected (red dis‐
play messa ge) *T
hekey cannot be de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit choff the drive sy stem:
R You can no lon gerst art the drive sy stem.
R You cannot centrally lock theve hicle. #
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toast ro ng radio signal source: #
Stop theve hicle immediately in accordance with the traf fic conditions. #
Place theke y in the slot forst arting the engine with theke y (/ page152).
Place the key in the
marked space See Owner's
Manual *K
eydetection is malfunctioning. #
Change the location of theke y in theve hicle. #
Place theke y in the slot forst arting the engine with theke y (/ page152). 360
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
& Pre-entry climate control
(via key) available again
after engine start *Y
ou ha veattem ptedto switch on pre-entry climate contro l morethan thre e times with the engine switched off. #
Start theve hicle forte n seconds.
Pre-entry clima tecontrol is ope rational again.
&
Pre-entry climate control
(via key) inoperative HV-
battery low *T
hecharge ofthe high-voltage battery is too lo w.Pre-ent ryclimate control cannot be switched on. #
Charge the high-voltage batter y.
When the high-voltage battery is suf ficiently charge d, pre-entry climate control will be operational again. Display messages and
warning/indicator lamps 365

Drive sy
stem Display messages
Possible causes/consequences and M
MSolutions
v Towing not permitted See
Owner's Manual *T
he drive sy stem is malfunctioning. #
Have theve hicle transpor ted only using a transpor ter or trailer (/ page 320).
ò
Acoustic presence indica-
tor inoperative *T
he sound generator (acou stic vehicle warning sy stem) is malfunctioning. Nodriving noises are being produced.
The vehicle may not be heard by otherroad users. #
Drive with particular care. #
Consult a qualified specialist workshop.
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 theve hicle is in motion. #
Toswitch off the drive sy stem while theve hicle is in motion (/ page152). 366
Displaymessa ges and warning/indicator lamps

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 messages
Possible causes/consequences and M
MSolutions
Û Malfunction *T
he drive sy stem is malfunctioning. A warning tone will also sound. #
Consult a qualified specialist workshop.
*T here is a serious malfunction if the display message and warning tone are repeated at short inter vals. You must
st op theve hicle immediately in accordance with the traf fic conditions because the drive sy stem is automatically
deactivated. #
Stop theve hicle immediately in accordance with the traf fic conditions. #
Switch off the ignition and consult a qualified specialist workshop.
Û
Malfunction Visit workshop *T
he drive sy stem is malfunctioning. #
Consult a qualified specialist workshop.
Without starting engine
again, consult workshop *I
t is not possible torestart the drive sy stem due toa malfunction. #
Do not swit choff the drive sy stem; drive on tothe nearest qualified specialist workshop.
Ý
Reserve level Charge high-
voltage battery *T
hecharge leve l of the high-voltage battery has dropped into there ser verange. #
Charge the high-voltage battery (/ page163). Displ
aymessa ges and warning/indicator lamps 371

Display messages
Possible causes/consequences and M
MSolutions
# 12 V battery See Owner's
Manual *T
he drive sy stem is off and thech arge leve l is too lo w. #
Switch off electrical consumers that are not required. #
Char gethe12 V battery when stationar y.
d
Malfunction *T
he drive sy stem is malfunctioning. The output of your vehicle is restricted. #
Consult a qualified specialist workshop.
d Stop Switch engine off *T
he drive sy stem is malfunctioning. #
Stop theve hicle immediately in accordance with the traf fic conditions and switch off the drive sy stem. Do not
continue driving. #
Do not tow theve hicle, stop towing if necessar y. #
Consult a qualified specialist workshop.
d Malfunction Visit workshop *T
he drive sy stem is malfunctioning. #
Consult a qualified specialist workshop. 372
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
High-voltage battery main-
tenance required urgently.
No start in approx. XXX km
(yellow display message) *A
fault has occur red in the high-voltage batter y.
It is no longer possible tostart the drive sy stem af terth e dis tance displ ayed has been co vered. #
Have the necessary maintenance workon the high-voltage battery car ried out at a qualified specialist work‐
shop.
High-voltage battery main-
tenance required urgently.
No start in approx. XXX
km(red display message) *A
fault has occur red in the high-voltage batter y.
It is no longer possible tostart the drive sy stem af terth e dis tance displ ayed has been co vered. #
Have the necessary maintenance workon the high-voltage battery car ried out immediately at a qualified spe‐
cialist workshop.
High-voltage battery main-
tenance required urgently.
Without engine restart, con-
sult workshop *A
fault has occur red in the high-voltage batter y.
It is no longer possible torestart the drive sy stem once it has been switched off. #
Do not switch off the drive sy stem; drive on tothe nearest qualified specialist workshop. Display messages and
warning/indicator lamps 373

Ve
hicle Display messages
Possible causes/consequences and M
MSolutions
d Vehicle is operational
Switch off ignition before
exiting *Y
ou are leaving theve hicle in a ready-to-drive state. #
When you lea vetheve hicle, switch off the ignition, secure theve hicle against rolling away and take theke y with
yo u. #
Ifyo u do not lea vetheve hicle, switch off the electrical consumers, e.g. the seat heating. Otherwise, the12 ‑V
battery may discharge and starting the engine may be possible only with the help of a second battery (jump
st art).
ï
Operation only possible in
transmission position P *
The ball neck will not swivel because transmission position h,kor neut rali is selec ted. #
Depress the brake pedal. #
Enga gepark position j.
ï
Trailer coupling in motion *T
he ball neck is retracting/extending.
Do not attem pttospeed up, slow down or initiate the swivel mo vement using your hand, foot or other aids. During
th e swivel mo vement, do not couple a trailer.
When the ball neck has reached an operational position, the display message will disappear. 374
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Consult a qualified specialist workshop. C
*A
t least one door is open. #
Close all doors.
? *T
he bonnet is open. &
WARNING Risk of accident due todriving 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. #
Stop theve hicle immediately in accordance with the traf fic conditions. #
Close the bonn et.
A *T
hetailgate is open. #
Close theta ilgate. Display messages and
warning/indicator lamps 377