MERCEDES-BENZ C CLASS 2023 Owners Manual

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 306).Check the engine oil level.
Notes on engine oil (  page 377).

Display messagesPossible causes/consequences and P Solutions

Brakes

Occupant safetyWarning/indicator lampPossible causes/consequences and P Solutions
u
Restraint system warning
lamp
*The restraint system red warning lamp is lit while the vehicle is on.The restraint system is malfunctioning (  page 34).&WARNING Risk of injury due to malfunctions in the restraint system
Components in the restraint system may be activated unintentionally or not deploy as planned in an accident.
Have the restraint system checked and repaired immediately at a qualiNed specialist workshop.Drive on carefully.Note the messages on the driver\bs display.Visit a qualiNed specialist workshop immediately.

Warning/indicator lampPossible causes/consequences and P Solutions

Warning/indicator lampPossible causes/consequences and P SolutionsPull over and stop the vehicle safely as soon as possible, paying attention to road and traPc conditions. Do not
continue driving under any circumstances.Consult a qualiNed specialist workshop.Note the messages on the driver\bs display.
Ù
Rear axle steering warning
lamp (yellow)
*The yellow rear axle steering warning lamp is lit while the vehicle is running.The rear axle steering is malfunctioning.
Note the messages on the driver\bs display.EngineWarning/indicator lampPossible causes/consequences and P Solutions

Warning/indicator lampPossible causes/consequences and P Solutions=
The radiator fan is faulty
= The engine coolant pump is faulty
If there is an additional warning tone, the coolant temperature has exceeded the maximum permissible temperature.&WARNING Risk of burns when opening the hood
If you open the hood in the event of an overheated engine or Nre in the engine compartment, the following situations
may occur:
= You may come into contact with hot gases.
= You may come into contact with other escaping hot operating Ouids.
Before opening the hood, allow the engine to cool down.In the event of a Nre in the engine compartment, keep the hood closed and call the Nre service.Stop immediately in accordance with the traPc conditions and switch oM the vehicle. Do not continue driving.Note the messages on the driver\bs display.
If the coolant temperature display is at the lower end of the temperature scale:
Consult a qualiNed specialist workshop.
If the coolant temperature display is at the upper end of the temperature scale:
Exit the vehicle and keep a safe distance from it until the engine has cooled down.Display messages and warning/indicator lamps445

Warning/indicator lampPossible causes/consequences and P SolutionsCheck the coolant level (  page 307).Make sure that the air supply to the radiator is not obstructed.Avoiding high loads on the engine, drive to the nearest qualiNed specialist workshop. In doing so, ensure that the
coolant temperature display remains below the red area.

Warning/indicator lampPossible causes/consequences and P Solutions
=
Electrical malfunction warn-
ing lamp
*The red electrical malfunction warning lamp is lit.There is a malfunction in the electrics.
Note the messages on the driver\bs display.

BrakesWarning/indicator lampPossible causes/consequences and P Solutions
M
Electric parking brake indi-
cator lamp (red) (USA only)