Mercedes-Benz S-Class 2014 Owners Manual - Manual (Page 59)

Important safety notes
The intervention of PRE-SAFE ® PLUS cannot
prevent an imminent collision.
The driver is not warned when PRE-SAFE
®
PLUS intervenes.
PRE-SAFE
® PLUS does not intervene:
R if the vehicle is backing up
R when the vehicle is towing a trailer and
there is a risk of a rear-end collision
PRE-SAFE ® PLUS does not perform braking
actions while the vehicle is in motion or when
Parking Guidance is active.
Function
PRE-SAFE ® PLUS intervenes in certain
situations if the radar sensor system detects
an imminent head-on or rear-end collision.
PRE-SAFE
® PLUS takes the following
measures depending on the hazardous
situation detected:
R If the radar sensor system detects that a
head-on collision is imminent, the seat
belts are pre-tensioned.
R If the radar sensor system detects that a
rear-end collision is imminent:
- the brake pressure is increased if the
driver applies the brakes when the
vehicle is stationary.
- the seat belts are pre-tensioned.
The PRE-SAFE ® PLUS braking application is
canceled in the following situations:
R if the accelerator pedal is depressed when
a gear is engaged
R if the risk of a collision passes or is no
longer detected
R if DISTRONIC PLUS indicates an intention
to pull away
If the hazardous situation passes without
resulting in an accident, the original settings
are restored.
Automatic measures after an
accident
Immediately after an accident, the following
measures are implemented, depending on
the type and severity of the impact:
R by activating the hazard warning lamps
R the emergency lighting is activated
R the vehicle doors are unlocked
R the front side windows are lowered
R the electrically adjustable steering wheel is
raised
R the engine is switched off
R vehicles with seat belt extenders: the
seat-belt buckles for the outer rear seats
are illuminated and extend forwards
R vehicles with mbrace: automatic
emergency call
R vehicles with the hybrid drive system:
the hybrid system is deactivated
Seat belts
Important safety notes
G WARNING
Objects next to the front seat that block the
belt buckle or the moving belt anchorage on
the front seat impair the function of the
Emergency Tensioning Devices. The
Emergency Tensioning Devices may not
function as intended and the seat belt may no
longer provide the intended protection. This
poses an increased risk of injury or even fatal
injury.
Before starting the journey, make sure that
there are no objects around the belt buckle or
between the front seat and door.
G WARNING
The seat belt does not offer the intended level
of protection if the backrest is not in the
upright position. When braking or in the event
of an accident, you could slide underneath the
seat belt and sustain abdomen or neck
Occupant safety
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