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erly secured in an appropriately sized child
restraint system or booster seat recom-
mended for the size and weight of the child.
For additional information, see the "Children
in the vehicle" section.
A child's risk of serious or fatal injuries is sig-
nificantly increased if the child restraints are
not properly secured in the vehicle and/or the
child is not properly secured in the child
restraint.
! Make sure that the seat belt retracts fully.
The seat belt or belt buckle may otherwise
become trapped in the door or the seat
adjustment mechanism. This could dam-
age the door, door trim panels and the seat
belt. Damaged seat belts can no longer ful-
fill their protective function and must be
replaced at a qualified specialist workshop. X
To fasten the seat belt: adjust the seat
and move the backrest to an almost vertical
position (Y page 82).
X Pull the seat belt smoothly through belt
sash guide 0044.
X Without twisting it, guide the shoulder sec-
tion of the seat belt across the middle of
your shoulder and the lap section across
your hips.
X Engage belt tongue 0087in seat belt buckle
0083. X
The upper part of the seat belt must be
routed across the middle of your shoulder.
Adjust the seat belt to the appropriate
height as necessary.
X If necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
X To raise the seat belt: slide belt sash
guide 0044upwards.
Belt sash guide 0044engages in various posi-
tions.
X To lower the seat belt: press and hold
release button 0043.
X Adjust belt sash guide 0044to the appropri-
ate height.
X Let go of release button 0043and make sure
that belt sash guide 0044has engaged.
X To release the seat belt: press release
button 0085on seat belt buckle 0083.
X Guide seat belt to belt sash guide 0044.
All seat belts in the vehicle, except the driv-
er's seat belt, are equipped with a special seat
belt retractor. This helps to secure the child
restraint system properly in the vehicle. For
further information on "Special seat belt
retractors", see (Y page 54).
Belt warning for drivers and co-drivers Regardless of whether the driver's and co-
driver's seat belts have already been fas-
tened, the
0076seat belt warning lamp lights
up for six seconds each time the engine is
started. It then goes out if the driver and the
co-driver have fastened their seat belts. If the
driver's seat belt is not fastened when the
engine is started, an additional warning tone
will sound. This warning tone switches off
after approximately six seconds or once the
driver's seat belt is fastened. Occupant safety
49Safety Z
Page 85 of 338

Driver's and co-driver's seat
0043
Seat fore-and-aft adjustment
0044 Lumbar support adjustment
0087 Seat backrest adjustment
0085 Seat height adjustment
0083 Seat cushion angle adjustment
0084 Seat suspension adjustment
006B Seat suspension lock
i Depending on the seat model, some
adjustments may not be available.
You can find information on rotating the
front seats under "Swiveling front seats"
(Y page 84).
X To adjust the seat fore-and-aft posi-
tion: pull lever 0043up.
X Slide the seat forwards or back until you
can depress the pedals.
X Release lever 0043.
X Slide the seat forwards or back until you
hear it engage.
X To adjust the backrest: turn handwheel
0087 towards the front.
The seat backrest moves to a vertical posi-
tion.
X Turn handwheel 0087towards the rear.
The seat backrest tilts towards the rear. X
To adjust the seat height: press or pull
lever 0085repeatedly until you have reached
the desired seat height.
X To adjust the seat angle: turn handwheel
0083 towards the front.
The front of the seat cushion is lowered.
X Turn handwheel 0083towards the rear.
The front of the seat cushion is raised.
i The lumbar support allows you to use the
backrest to increase the support provided
to the lumbar spine.
When the lumbar support is correctly
adjusted, it reduces strain on your back
while driving.
X To adjust the lumbar support: turn hand-
wheel 0044upwards.
This increases the support provided to the
lumbar region.
X Turn handwheel 0044downwards.
This reduces the support provided to the
lumbar region.
The seat suspension must be adapted to your
body weight. Adjust the seat suspension only
while the seat is unoccupied.
X To adjust the seat suspension: take your
weight off the seat.
X Using handwheel 0084, set your body weight
(40 to 120 kg) for optimum seat suspen-
sion.
The seat suspension will become more rigid
the higher you set the weight. It will then
not move as far. Seats
83Seats, ste ering wheel and mirrors Z
Page 90 of 338

X
Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press the0072button
repeatedly until the desired heating level
has been set.
X To switch off: press the0072button
repeatedly until all indicator lamps go out.
If the indicator lamps of the current heating
level in the 0072button flash, the seat heat-
ing has switched off automatically. In this
case, too many electrical consumers are
switched on or the battery charge is not suf-
ficient. The seat heating will automatically
switch back to the current heating level when
enough on-board voltage is available again. Steering wheel
G
WARNING
You could lose control of your vehicle if you
do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine. G
WARNING
If the steering wheel is unlocked while the
vehicle is in motion, it could change position
unexpectedly. This could cause you to lose
control of the vehicle. There is a risk of an
accident.
Before starting off, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion. G
WARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury. When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The steering wheel can still be adjusted if the
key has been removed. 0043
Steering column fore-and-aft adjustment
0044 Steering column height
0087 Lever
X To set the steering wheel: swing lever
0087 down until it engages.
The steering wheel is unlocked.
X Move the steering wheel to the desired
position.
X Pull lever 0087up to the stop.
The steering wheel is locked again. 88
Steering wheelSeats, steering wheel and mirrors