MERCEDES-BENZ A-CLASS SALOON 2022 Owners Manual

Display messages
Possible causes/consequences and P Solutions
;
inoperative Refuel vehicle * There is too little fuel in the fuel tank. The stationary heater cannot be switched on. 
Refuel the vehicle.
;
inoperative High-voltage
battery charging incom-
plete * The high-voltage battery is charging. Pre-entry climate control cannot be switched on. 
Wait until the charging process has achieved a minimum charge.
;
inoperative Charge HV bat-
tery * The charge of the high-voltage battery is too low. Pre-entry climate control cannot be switched on. 
Charge the high-voltage battery ( pag e 190).418
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions
;
Pre-entry climate control
(via key) available again
after engine start * You have attempted to switch on pre-entry climate control more than twice with the vehicle switched
oM.
Start the vehicle for ten seconds.
Pr e-entry climate control is operational again.
; Pre-entry climate control
(via key) inoperative HV-
battery low * The charge of the high-voltage battery is too low. Pre-entry climate control cannot be switched on. 
Charge the high-voltage battery ( pag
e 190).
When the high-voltage battery is suPciently charged, pre-entry climate control will be operational again. Display messages and warning/indicator lamps
419

Hybrid system
Display messages
Possible causes/consequences and P Solutions
Z
Towing not permitted See
Owner's Manual * The drive system is malfunctioning. 
Have the vehicle transported only using a transporter or trailer ( pag e 360).

Display messages
Possible causes/consequences and P Solutions 
Request service personnel from the operator of the charging station via the emergency call button or the emer-
g ency numbers attached to the charging station.
Vehicle not currently being
charged Charging station
fault * A malfunction has occurred in the charging station or the RFID card is not recognised. 
Start the charging process at a diMer
ent charging station.
or 
Have the RFID card checked to ensure it is functioning.
Charging method currently
unavailable Please try
again or change charging
method * A temporary malfunction has occurred in the charging station. 
Wait until the malfunction has passed.
or 
Start the charging process at a diMer
ent charging station.
Charging fault Please
change charging method
See Owner's Manual * A temporary malfunction has occurred in the charging station. 
Wait until the malfunction has passed.
or 
Start the charging process at a diMer
ent charging station.
Only electric drive availa-
ble Power limited * The fuel tank is empty and the combustion engine is switched
oM. The output of y
our vehicle is limited because you
are driving in electric mode. Display messages and warning/indicator lamps
421

Display messages
Possible causes/consequences and P Solutions 
Refuel immediately.
Subseq
uently, there may be temporary restrictions in the availability of electric mode over a driving distance of
50 km.
If there is fuel in the vehicle, there is a fault with the combustion engine. 
Consult a q
ualiNed specialist workshop.
"Electric" drive program
currently unavailable * The charge level of the high-voltage battery is not
suPcient f
or the Electric drive program.
Charge the high-voltage battery ( page 190).
Reduced drive system per-
formance See Owner's
Manual * The drive system switches to emergency operation mode due to a malfunction. 
Drive on carefully. 
Consult a q
ualiNed specialist workshop.
Û
Battery overheated Stop,
everybody out! Outdoors if
possible * The high-voltage battery has overheated. There is a risk of
Nr
e.
Stop the vehicle immediately in accordance with the tr
aPc conditions. 
If possible, stop the vehicle in the open air and ensure that all vehicle occupants get out.
% Supporting vehicle functions may activate automatically, e.g. the air-recirculation mode as part of climate control. 
Do not continue driving. 
If smoke is present, leave the danger zone and call the Nr
e service immediately.
Consult a q
ualiNed specialist workshop even if there are no external signs of a Nre.422
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions
Û
Malfunction * The drive system is malfunctioning. A warning tone will also sound. 
Consult a qualiNed specialist workshop.
* There is a serious malfunction if the display message and warning tone are repeated at short intervals. You must stop t
he vehicle immediately in accordance with the traPc conditions because the drive system is automatically deactiva-
ted. 
Stop the vehicle immediately in accordance with the tr
aPc conditions. 
Switch oM t
he vehicle and consult a qualiNed specialist workshop.
Û
Malfunction Visit workshop * The drive system is malfunctioning. 
Consult a q
ualiNed specialist workshop.
Without changing gear,
consult workshop * The drive system cannot be restarted due to a malfunction.
If t
he transmission position is changed using the DIRECT SELECT lever, the drive system will be switched oM in park
position j or neutral i. 
Consult a q
ualiNed specialist workshop and do not change the transmission position.
Without starting engine
again, consult workshop * It is not possible to restart the drive system due to a malfunction. 
Do not switch oM t
he drive system; drive on to the nearest qualiNed specialist workshop. Display messages and warning/indicator lamps
423

Display messages
Possible causes/consequences and P Solutions

Display messages
Possible causes/consequences and P Solutions
6
Please wait Depressurising
tank *
Vehicles with petrol engines: t he pressure in the fuel tank is reduced before the fuel Nller Oap is opened. The pressure
reduction can take up to 15 minutes.
6 Tank is depressurised
Ready for refuelling *
Vehicles with petrol engines: t
he pressure in the fuel tank is released and the fuel Nller Oap opens.
6
Tank ventilation Malfunc-
tion Consult workshop *
Vehicles with petrol engines: Ther
e is a malfunction in the fuel system. 
Consult a q
ualiNed specialist workshop. Display messages and warning/indicator lamps
425

Vehicle
Display messages
Possible causes/consequences and P Solutions
r
Vehicle is operational
Switch off ignition before
exiting * You are leaving the vehicle in a ready-to-drive state. 
Get out of the vehicle, secure it against rolling away and take the key with you. 
If you do not leave the vehicle, switch oM t he electrical consumers, e.g. the seat heating. Otherwise, the 12!

Display messages
Possible causes/consequences and P Solutions 
Do not couple up the trailer. Drive on without the trailer. Note the reduced ground clearance due to the unlocked
ball nec k. 
Consult a q
ualiNed specialist workshop.
* When the vehicle is stationary with a coupled trailer, the trailer hitch is not operational. 
Uncouple the coupled trailer and secure it against rolling away. 
If the ball neck has been folded in: unloc
k the ball neck ( page 268). 
Swivel the ball neck into the end position manually and let it engage. 
If the ball neck has been folded out: unloc
k the ball neck ( page 268). 
Swivel the ball neck beneath the bumper manually and let it engage.
If the display message does not disappear, the trailer hitch is malfunctioning and the ball neck is not locked. 
Do not couple up the trailer. Drive on without the trailer. Note the reduced ground clearance due to the unlocked
ball nec
k. 
Consult a q
ualiNed specialist workshop.
Head-up display currently
unavailable See Owner's
Manual * The head-up display is temporarily unavailable. Possible causes:
= malfunctions in t

he power supply
= signal interference 
Stop in accordance with the tr
aPc conditions and switch the vehicle oM and on again. 
If the display message still appears, consult a q
ualiNed specialist workshop. Display messages and warning/indicator lamps
427