2023 MERCEDES-BENZ CLA Owners Manual

Display messagesPossible causes/consequences and P Solutions*If the message appears while the vehicle is switched on, this indicates an on-board electrical system malfunction.Consult a qualiNed specialist workshop.
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See Operator's Manual
*The 12 V battery is not being charged.*NOTE Possible engine damage if you continue drivingDo not continue driving under any circumstances.Consult a qualiNed specialist workshop.Stop immediately in accordance with the traPc conditions and switch oM the vehicle.Consult a qualiNed specialist workshop.
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Stop Vehicle See Opera-
tor's Manual
*The 12 V battery is no longer being charged and the condition of charge is too low.*NOTE Possible engine damage if you continue drivingDo not continue driving under any circumstances.Consult a qualiNed specialist workshop.Stop the vehicle immediately in accordance with the traPc conditions. Do not continue driving under any circum-
stances.Switch oM the vehicle.Consult a qualiNed specialist workshop.Display messages and warning/indicator lamps383

Display messagesPossible causes/consequences and P Solutions
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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 traPc conditions. Do not continue driving under any circum-
stances.Leave the engine running.If the display message disappears: drive on.If the display message does not disappear: consult a qualiNed specialist workshop.Tire pressure monitorDisplay messagesPossible causes/consequences and P SolutionsTire Press. Monitor Cur-
rently Unavailable*There is interference from a powerful radio signal source As a result, no signals from the tire pressure sensor are
being received. The tire pressure monitoring system is temporarily unavailable.
The tire pressure monitoring system will restart automatically as soon as the cause has been rectiNed.Drive onTire Press. Monitor Inopera-
tive*The tire pressure monitoring system is malfunctioning.&WARNING There is a risk of an accident if the tire pressure monitoring system is malfunctioning
The tire pressure monitoring system cannot issue a warning if there is pressure loss in one or more of the tires.
Tires with insuPcient tire pressure may impair the driving characteristics as well as steering and braking.
384Display messages and warning/indicator lamps

Display messagesPossible causes/consequences and P SolutionsHave the tire pressure monitoring system checked at a qualiNed specialist workshop.Tire Pressure Monitor Inop-
erative No Wheel Sensors*The wheels installed do not have suitable tire pressure sensors. The tire pressure monitoring system is deactivated.Install wheels with suitable tire pressure sensors.

Display messagesPossible causes/consequences and P SolutionsStop the vehicle in accordance with the traPc conditions.Check the tire pressure (  page 300) and the tires.

Display messagesPossible causes/consequences and P SolutionsStop the vehicle in accordance with the traPc conditions.Check the tires.

Display messagesPossible causes/consequences and P SolutionsThe tire pressure loss warning system has detected a signiNcant loss of pressure.&WARNING Risk of an accident due to insuPcient tire pressure
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The tires can burst.
= The tires 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 tire pressures.Adjust the tire pressure if necessary.Stop the vehicle in accordance with the traPc conditions.Check the tire pressure (  page 300) and the tires.When the tire pressure is correct, restart the tire pressure loss warning system (  page 306).Check Tire Pressure Then
Restart Run Flat Indicator*Canada only:
The tire pressure loss warning system generated a display message and has not been restarted since.When the tire pressure is correct, restart the tire pressure loss warning system (  page 306).Run Flat Indicator Inopera-
tive*Canada only:
The tire pressure loss warning system is malfunctioning.Consult a qualiNed specialist workshop.388Display messages and warning/indicator lamps

Engine oilDisplay messagesPossible causes/consequences and P Solutions

Display messagesPossible causes/consequences and P SolutionsStop the vehicle immediately in accordance with the traPc conditions. Do not continue driving under any circum-
stances.Switch oM the vehicle.Add 1.1 US qt (1 l) of engine oil (  page 267).Check the engine oil level.
Notes on engine oil (  page 337).