MERCEDES-BENZ C-CLASS SALOON 2022 Owners Manual

Page 511 of 585

Display messages
Possible causes/consequences and P Solutions
%

Page 512 of 585

Display messages
Possible causes/consequences and P Solutions 
If the display message does not disappear, consult a q ualiNed specialist workshop immediately. Drive care-
fully.

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Display messages
Possible causes/consequences and P Solutions
z
%

Page 514 of 585

Display messages
Possible causes/consequences and P Solutions 
Drive on carefully.
As soon as t
he ambient conditions are within the system limits, the system will become available again.
or 
If the display message does not disappear, stop the vehicle in accordance with the tr
aPc conditions and restart
the vehicle.
Active Brake Assist Func-
tions limited See Owner's
Manual * For vehicles with the Driving Assistance Package, the following functions may be temporarily unavailable or only parti-
all
y available:
= Active Brake Assist with cross-traPc function
= Evasive Steering Assist
= PRE!

Page 515 of 585

Mercedes-Benz emergency call system
Display messages
Possible causes/consequences and P Solutions
S
Inoperative * The Mercedes-Benz emergency call system is malfunctioning. The Mercedes me connect system is also malfunction-
ing. 
Consult a qualiNed specialist workshop.Battery
Display messages
Possible causes/consequences and P Solutions
=
12 V on-board electrical
system Visit workshop * The 12 V on-board electrical system is malfunctioning. 
Consult a q
ualiNed specialist workshop immediately.
=
Stop vehicle See Owner's
Manual * The 12 V battery is no longer being charged and the state of charge is too low.
* NOTE P
ossible engine damage if you continue driving 
Do not continue driving under any circumstances. 512
Display messages and warning/indicator lamps

Page 516 of 585

Display messages
Possible causes/consequences and P Solutions 
Consult a qualiNed specialist workshop. 
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.
=
Start the vehicle to charge
the 12 V battery * The vehicle is
oM and t
he state of charge of the 12 V battery is too low. 
Switch oM electr
ical consumers that are not required. 
Drive for 30!

Page 517 of 585

Display messages
Possible causes/consequences and P Solutions
Û
Stop vehicle See Owner's
Manual * The 48 V on-board electrical system is malfunctioning. 
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.
Û
Battery overheated Stop,
everybody out! Outdoors if
possible * The 48 V battery is overheating. 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.
Û
48 V battery See Owner's
Manual * The 48 V on-board electrical system has function restrictions.
Comf
ort functions may be restricted. 
Consult a q
ualiNed specialist workshop immediately.514
Display messages and warning/indicator lamps

Page 518 of 585

Display messages
Possible causes/consequences and P Solutions

Page 519 of 585

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. Tyre pressure monitor inop-
erative No tyre pressure
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.

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Display messages
Possible causes/consequences and P Solutions

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