Seat belt

Problem Possible causes/consequences and •► Solutions

engine, the red seat 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

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

Risk of injury
 The driver's seat belt is not fastened.

•► Fasten your seat belt.

The warning tone ceases.

warning lamp lights up 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.

Risk of injury
 The driver or front passenger has not fastened their seat belt.

•► Fasten your seat belt.

The warning lamp goes out.

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.

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

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.

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:

    Important safety notes
    You will find an illustration of the instrument cluster in the "At a glance" section. WARNING   A driver's attention to the road and traffic conditions must always be his/her p ...

    LATCH-type (ISOFIX) child seat anchors in the rear
    WARNING Children that are too large for a child restraint must travel in seats using normal seat belts. Position shoulder belt across the chest and shoulder, not face or neck. In order to atta ...

    Notes on technical data
    The data stated here specifically refers to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...