MERCEDES-BENZ CLS COUPE 2022 Owners Manual

Display messages
Possible causes/consequences and P Solutions
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!

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Possible causes/consequences and P Solutions
Device detected at diagnos-
tics connection See Own-
er's Manual * The vehicle functions for fault detection are restricted.
At least one of the main functions of the Mercedes me connect system is malfunctioning. 
Observe the notes on the diagnostics connection (  pag
e 32).
Consult a q
ualiNed specialist workshop. Battery
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Possible causes/consequences and P Solutions
=
12 V battery See Owner's
Manual * 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!

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Possible causes/consequences and P Solutions
* NOTE Possible engine damage if you continue driving 
Do not continue driving under any circumstances. 
Consult a q
ualiNed specialist workshop. 
Stop immediately in accordance with the tr
aPc conditions and switch oM the vehicle. 
Consult a q
ualiNed specialist workshop.
=
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. 
Consult a q
ualiNed 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.420
Display messages and warning/indicator lamps

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Possible causes/consequences and P Solutions
=
Stop vehicle Leave engine
running * The state of charge of the 12 V battery 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.

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Tyre pressure monitor
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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 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.

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Reduce speed so that the tyres cool down.

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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 341) and the tyres. 
When the tyre pressure is correct, restart the tyre pressure loss warning system (  pag
e 344).
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 344).
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
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