Mercedes-Benz C-Class Manuals

Mercedes-Benz C-Class (W205) 2015 - 2021 Owners Manual: PRE-SAFE system

PRE-SAFE (anticipatory occupant protection)

PRE-SAFE is able to detect certain critical driving situations and implement pre-emptive measures to protect the vehicle occupants.

PRE-SAFE can implement the following measures independently of each other:

  • Tightening the seat belts on the driver's seat and front passenger seat.
  • Closing the side windows.
  • Vehicles with sliding sunroof: Closing the sliding sunroof.
  • Vehicles with memory function: Moving the front passenger seat to a more favorable seat position.
  • Vehicles with multicontour seat: Increasing the air pressure in the seat side bolsters of the seat backrest.
  • PRE-SAFE Sound: provided that the multimedia system is switched on, generates a brief noise signal to stimulate the innate protective mechanism of a person's hearing.
NOTE Damage caused by objects in the footwell or behind the seat
The automatic adjustment of the seat position may result in damage to the seat and/or the object.
  • Stow objects in a suitable place.

Reversing the PRE-SAFE system measures

If an accident did not occur, the pre-emptive measures that were taken are reversed.

You will need to perform certain settings yourself.

  • If the seat belt pre-tensioning is not reduced, move the seat backrest back slightly.

    The locking mechanism releases.

Function of PRE-SAFE PLUS (anticipatory occupant protection plus)

PRE-SAFE PLUS can detect certain impacts, particularly an imminent rear impact, and take pre-emptive measures to protect the vehicle occupants. These measures cannot necessarily prevent an imminent impact.

PRE-SAFE PLUS can implement the following measures independently of each other:

  • Tightening the seat belts on the driver's seat and front passenger seat.
  • Increasing brake pressure when the vehicle is stationary. This brake application is canceled automatically when the vehicle pulls away.

If an accident did not occur, the pre-emptive measures that were taken are reversed.

System limitations

The system will not initiate any action in the following situations:

  • when backing up

The system will not initiate any braking application in the following situations:

  • whilst driving
    or
  • when entering or exiting a parking space while using Active Parking Assist
    Status of the front passenger front airbag

    Safely transporting children in the vehicle

    See More:

    Mercedes-Benz C-Class (W205) 2015 - 2021 Owners Manual > Stowage areas: Hooking in the parcel net
    WARNING Risk of injury due to objects being stowed incorrectly If you do not adequately stow objects in the vehicle interior, they could slip or be tossed around and thereby strike vehicle occupants. In addition, cup holders, open stowage spaces and mobile phone brackets cannot always restrain the ...

    Mercedes-Benz C-Class (W205) 2015 - 2021 Owners Manual

    Mercedes Benz C-Class (W204) 2007 - 2014 Training Manual

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