MERCEDES-BENZ B-CLASS HATCHBACK 2022 Owners Manual

Display messages
Possible causes/consequences and P Solutions
=
Stop vehicle Leave engine
running * The 12 V battery charge level is too low. 
Stop the vehicle immediately in accordance with the tr aPc conditions. Do not continue driving. 
Leave the engine running. 
If the display message disappears: drive on. 
If the display message does not disappear: consult a q
ualiNed specialist workshop. Tyre pressure monitor
Display messages
Possible causes/consequences and P Solutions
Tyre press. monitor cur-
rently unavailable * There is interference from a powerful radio signal source As a result, no signals from the tyre pressure sensors are
being r
eceived. The tyre pressure monitoring system is temporarily unavailable.
The tyre pressure monitoring system will restart automatically as soon as the cause has been rectiNed.
Drive on
Tyre press. monitor inoper-
ative * The tyre pressure monitoring system is malfunctioning. &
WARNING Ther
e is a risk of an accident if the tyre pressure monitoring system is malfunctioning
The tyre pressure monitoring system cannot issue a warning if there is pressure loss in one or more of the tyres.
T
yres with insuPcient tyre pressure may impair the driving characteristics as well as steering and braking. 
Have the tyre pressure monitoring system checked at a q
ualiNed specialist workshop. 478
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions
Tyre press. monitor inoper-
ative No wheel sensors * The wheels
Ntt ed do not have suitable tyre pressure sensors. The tyre pressure monitoring system is deactivated. 
Fit wheels with suitable tyre pressure sensors.

Display messages
Possible causes/consequences and P Solutions

Display messages
Possible causes/consequences and P Solutions

Display messages
Possible causes/consequences and P Solutions &
WARNING Risk of an accident due t o insuPcient tyre pressure
= The tyr
es can burst.
= The tyres can wear excessively and/or unevenly.
= The driving characteristics as well as the steering and braking may be greatly impaired.
You could then lose control of the vehicle. 
Observe the recommended tyre pressures. 
Adjust the tyre pressure if necessary. 
Stop the vehicle in accordance with the tr
aPc conditions. 
Check the tyre pressure ( pag
e 383) and the tyres. 
When the tyre pressure is correct, restart the tyre pressure loss warning system (  pag
e 386).
Check tyre pressures then
restart Run Flat Indicator * The tyre pressure loss warning system generated a display message and has not been restarted since. 
When the tyre pressure is correct, restart the tyre pressure loss warning system (  pag
e 386).
Run Flat Indicator inopera-
tive * The tyre pressure loss warning system is malfunctioning. 
Consult a q
ualiNed specialist workshop.482
Display messages and warning/indicator lamps

Exhaust gas
aser treatment Display messages
Possible causes/consequences and P Solutions
Ú
Refill AdBlue See Owner

Display messages
Possible causes/consequences and P Solutions
Ú
XX,X l Top up AdBlue
Switch on ignition, wait 0
sec. or eng. start not poss. *
The AdBlue n
t
ank is empty. You can no longer start the vehicle. 
Add at least the amount of AdBlue n
displa
yed ( page 201). 
Switch on the vehicle and wait for approximately 60 seconds. 
Start the vehicle.

Display messages
Possible causes/consequences and P Solutions

Engine oil
Display messages
Possible causes/consequences and P Solutions
5
Add 1 litre engine oil when
next refuelling * The engine oil level has dropped to the minimum level.
* NOTE Engine damag e caused by driving with insuPcient engine oil 
Avoid long journeys with insuPcient engine oil. 
When next refuelling, add 1 litre of engine oil ( pag
e 349).
Notes on engine oil ( pag
e 410).
5
Engine oil level Reduce oil
level * The engine oil level is too high.
* NOTE Engine damag
e caused by driving with excess engine oil 
Avoid long journeys with excess engine oil. 
Consult a q
ualiNed specialist workshop immediately and have the engine oil level reduced.
5 Engine oil level Stop vehi-
cle Switch engine off * The engine oil level is too low.
* NOTE Engine damag
e caused by driving with insuPcient engine oil 
Avoid long journeys with insuPcient engine oil. 
Stop the vehicle immediately in accordance with the tr
aPc conditions. Do not continue driving. 486
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions 
Switch oM the vehicle. 
Add 1 l of engine oil (  pag
e 349). 
Check the engine oil level.
Notes on engine oil ( pag
e 410).
5
Engine oil pressure Stop
Switch off engine * The oil pressure is too low.
* NOTE Engine damag
e caused by driving with insuPcient oil pressure 
Avoid driving with insuPcient oil pr
essure. 
Stop the vehicle immediately in accordance with the tr
aPc conditions. Do not continue driving. 
Switch oM t
he vehicle. 
Consult a q
ualiNed specialist workshop.
5
Engine oil level cannot be
measured * The electrical connection to the oil level sensor has been interrupted or the oil level sensor is faulty. 
Consult a q
ualiNed specialist workshop. Display messages and warning/indicator lamps
487