MERCEDES-BENZ B-CLASS HATCHBACK 2022 Owners Manual

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
439

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 280). 
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 280). 
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
441

Display messages
Possible causes/consequences and P Solutions
Head-up display inoperative * The head-up display has an internal error. 
Consult a qualiNed specialist workshop.
Ù
Steering malfunction
Increased physical effort
See Owner's Manual * The power steering assistance is malfunctioning. &
WARNING Risk of an accident due t
o altered steering characteristics
If the power assistance of the steering fails partially or completely, you will need to use more force to steer. 
If safe steering is possible, drive on carefully. 
Visit or consult a q
ualiNed specialist workshop immediately. Ù
Steering malfunction Stop
immediately See Owner's
Manual * The steering is malfunctioning. Steering capability is
signiNcantl
y impaired. &
WARNING Risk of accident if s
teering capability is impaired
If the steering does not function as intended, the vehicle's operating safety is jeopardised. 
Pull over and stop the vehicle safely as soon as possible, paying attention to road and tr
aPc conditions. Do
not continue driving under any circumstances. 
Consult a q
ualiNed specialist workshop.442
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions
Ù
Steering malfunction See
Owner's Manual * The electric steering lock is malfunctioning. The steering may be locked by the electric steering lock. &
WARNING Risk of accident if s teering capability is impaired
If the steering does not function as intended, the vehicle's operating safety is jeopardised. 
Pull over and stop the vehicle safely as soon as possible, paying attention to road and tr
aPc conditions. Do
not continue driving under any circumstances. 
Consult a q
ualiNed specialist workshop. 
Stop the vehicle immediately in accordance with the tr
aPc conditions. Do not continue driving. 
Consult a q
ualiNed specialist workshop.

Display messages
Possible causes/consequences and P Solutions
Q * At least one door is open. 
Close all doors.
f * The bonnet is open. &
WARNING Risk of accident due t o driving with the bonnet unlocked
The bonnet may open and block your view. 
Never release the bonnet when driving. 
Before every trip, ensure that the engine bonnet is locked. 
Stop the vehicle immediately in accordance with the tr
aPc conditions. 
Close the bonnet.
e * The tailgate is open. &
DANGER Risk of poisoning fr
om exhaust gases
Combustion engines emit poisonous exhaust gases, such as carbon monoxide. Exhaust gases can enter the vehi-
cle int
erior if the tailgate is open when the engine is running, especially if the vehicle is in motion. 
Always switch oM t
he engine before opening the tailgate. 
Never drive with the tailgate open. 444
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions 
Close the tailgate.
Anti-theft alarm system
Malfunction * The anti-thes alarm system is malfunctioning. 
Consult a q
ualiNed specialist workshop.
o
2nd seat row, left Not
locked * The les-hand
seat or t
he seat backrest in the second row of seats is not engaged. 
Fold the corresponding seat backrest back until it engages and push the row of seats back . 
Make sure that the seat is engaged .
o 2nd seat row, right Not
locked * The right-hand seat or the seat backrest in the second row of seats is not engaged. 
Fold the corresponding seat backrest back until it engages and push the row of seats back . 
Make sure that the seat is engaged .
o 3rd seat row, left Not
locked * The les-hand
seat or t
he seat backrest in the third row of seats is not engaged. 
Fold the corresponding seat backrest back until it engages. 
Make sure that the seat is engaged. Display messages and warning/indicator lamps
445

Display messages
Possible causes/consequences and P Solutions
o
3rd seat row, right Not
locked * The right-hand seat or the seat backrest in the third row of seats is not engaged. 
Fold the corresponding seat backrest back until it engages and push the row of seats back . 
Make sure that the seat is engaged.

Engine
Display messages
Possible causes/consequences and P Solutions
To switch off the engine,
press the Start/Stop but-
ton for at least 3 seconds
or 3 times. * You have pressed the start/stop button while the vehicle is in motion. 
Information about switching oM t he vehicle while driving ( page 173).
Cannot start engine See
Owner's Manual * The vehicle cannot be started. 
Switch the vehicle oM and switc
h it back on 
If the display message still appears, consult a q
ualiNed specialist workshop.