Belt warning for the driver and front passenger
Regardless of whether the driver and front passenger have fastened their seat belts already, the seat belt warning lamp lights up for 6 seconds after every engine start. It then goes out if the driver and the front passenger have fastened their seat belts.
If the driver's seat belt is not fastened after the engine is started, an additional warning tone will sound. The warning tone goes out after approximately six seconds or once the driver's seat belt is fastened.
If the driver or front passenger have not fastened their seat belt after 6 seconds and the doors are closed, the seat belt warning lamp lights up.
• until the driver or the front passenger have
fastened their seat belts
• if a vehicle speed of 15 mph(25 km/h) is
exceeded once, a warning tone with
increasing intensity sounds additionally for
a maximum of 60 seconds or until the driver
or front passenger have fastened their seat
belts.
If the driver or front passenger undo their seat belts during the journey, the seat belt warning lamp lights up and the warning tone sounds again.
The warning tone ceases even if the driver or front passenger have still not fastened their seat belt after 60 seconds. The seat belt warning lamp stops flashing but continues to be lit.
Once the vehicle is stationary, the warning tone is reactivated and the seat belt warning lamp starts to flash again if the vehicle speed exceeds 15 mph(25 km/h) once.
The seat belt warning lamp only
goes out if:
Rboth the driver and the front passenger have fastened their seat belts.
or
Rthe vehicle is stationary and a door is open.
For more information on the seat belt warning lamp, see "Warning and indicator lamps in the instrument cluster, seat belt".
See also:
Exterior
On all C-Class models, wedge-shaped styling features a steep rake to the
windshield and back window. A familiar Mercedes grille with a three-pointed star
insignia atop the sculpted hood sits up fr ...
Emergency Tensioning Devices, belt force limiters
The front seat belts and the outer seat belts
in the rear are equipped with ETDs and seat
belt force limiters.
The ETDs tighten the seat belts in an accident,
pulling them close against the bod ...
General notes
USA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. this device must ...