Seat belt

Display messages Possible causes/consequences and Solutions
After starting the engine, the red seat belt warning lamp lights up for

After starting the engine, the red seat belt warning lamp lights up for six seconds.

 The seat belt warning lamp reminds the driver and front passenger to fasten their seat belts.
– Fasten your seat belt.
After starting the engine, the red seat belt warning lamp lights up. In

After starting the engine, the red seat belt warning lamp lights up. In addition, a warning tone sounds for up to six seconds.

 – Fasten your seat belt. Risk of injury

The driver's seat belt is not fastened.
– Fasten your seat belt.
The warning tone ceases.
The red seat belt warning lamp lights up after the engine starts, as

The red seat belt warning lamp lights up after the engine starts, as soon as the driver's or the front-passenger door is closed.

 fastened their seat belt. Risk of injury

The driver or front passenger has not fastened their seat belt.
– Fasten your seat belt.
The warning lamp goes out.
seat. Risk of injury

There are objects on the front-passenger seat.
– Remove the objects from the front-passenger seat and stow them in a secure place.
The warning lamp goes out.
The red seat belt warning lamp flashes and an intermittent audible

The red seat belt warning lamp flashes and an intermittent audible warning sounds.

 fastened their seat belt. In addition, you are driving faster than 15 Risk of injury

The driver or front passenger has not fastened their seat belt. In addition, you are driving faster than 15 mph (25 km/h) or you have briefly driven faster than 15 mph (25 km/h).
– Fasten your seat belt.
The warning lamp goes out and the intermittent warning tone ceases.
seat. In addition, you are driving faster than 15 mph (25 km/h) or you Risk of injury

There are objects on the front-passenger seat. In addition, you are driving faster than 15 mph (25 km/h) or you have briefly driven faster than 15 mph (25 km/h).
– Remove the objects from the front-passenger seat and stow them in a secure place.
The warning lamp goes out and the intermittent warning tone ceases.
    See also:

    DISTRONIC PLUS displays in the multifunction display
    General notes You can select the distance display in the Assistance menu of the onboard computer. Display when DISTRONIC PLUS is deactivated Select the Distance Display function using the ...

    Restoring the factory settings
    •► Press the and buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...

    Important safety notes
    WARNING In order to avoid possible loss of vehicle control, all seat, head restraint, steering wheel and rear view mirror adjustments, as well as fastening of seat belts, must be done befor ...