2022 MERCEDES-BENZ C-CLASS ESTATE Owners Manual

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!

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. Display messages and warning/indicator lamps
527

Display messages
Possible causes/consequences and P Solutions

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.

Display messages
Possible causes/consequences and P Solutions

Display messages
Possible causes/consequences and P Solutions

Display messages
Possible causes/consequences and P Solutions 
Reduce speed so that the tyres cool down.

Display messages
Possible causes/consequences and P Solutions 
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 423) and the tyres. 
When the tyre pressure is correct, restart the tyre pressure loss warning system (  pag
e 426).
Check tyre pressure, 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 426).
Run Flat Indicator inopera-
tive * The tyre pressure loss warning system is malfunctioning. 
Consult a q
ualiNed specialist workshop. Exhaust gas
aser
treatment Display messages
Possible causes/consequences and P Solutions