Mercedes-Benz A-Class Operator's Manual page 84

82
Seats and stowing
Adjusting the 4-way lumbar support
1 Raise
2 Soften
3 Lower
4 Harden
Using buttons 1 to 4, adjust the contour
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of the backrest individually to suit your spine.
Head restraints
Adjusting the front seat head restraints
mechanically
& WARNING Risk of injury from adjusting
the vehicle settings while the vehicle is in
motion
You could lose control of the vehicle in the
following situations:
if you adjust the driver's seat, the head
R
restraint, the steering wheel or the mirror
while the vehicle is in motion
if you fasten your seat belt while the vehi‐
R
cle is in motion
Before starting the engine: adjust the
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driver's seat, the head restraint, the
steering wheel or the mirror and fasten
your seat belt.
& WARNING Risk of injury due to head
restraints which are not installed or are
adjusted incorrectly
If head restraints are not installed or are
adjusted incorrectly, the head restraints can‐
not provide protection as intended.
There is an increased risk of injury in the
head and neck area, e.g. in the event of an
accident or when braking.
Always drive with the head restraints
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installed.
Before driving off, make sure for every
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vehicle occupant that the center of the
head restraint supports the back of the
head at about eye level.
Do not swap the head restraints of the front and
rear seats. Otherwise, you cannot adjust the
height and angle of the head restraints correctly.
Adjust the head restraint fore-and-aft position so
that it is as close as possible to the back of your
head.