Page 52 of 399

49 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Power seat (optional)
The switches are located in each door.
We recommend to adjust the power seat in the following 
order:
1Seat, up / down
Press the switch (up / down direction) until 
comfortable seating position with still sufficient 
headroom is reached.2Seat adjustment, fore / aft
Press the switch (fore / aft direction) until a 
comfortable seating position is reached that still 
allows you to reach the accelerator / brake pedal 
safely. The position should be as far rearward as 
possible, consistent with ability to properly operate 
controls.
3Seat cushion tilt
Press the switch in the direction of the arrow until 
your legs are lightly supported. 
4Backrest tilt
Press the switch in the direction of the arrow until 
your arms are slightly angled when holding the 
steering wheel.
5Head restraint
The height of the head restraint is adjusted 
automatically with the seat so that the back of the 
head is supported approximately at ear level. Adjust 
the head restraint using the switch to support the 
back of your head approximately at ear level.
For exterior rear view mirrors, see page 90;
inside rear view mirror, see page 89;
steering wheel adjustment, see page 88. 
     
        
        Page 54 of 399
51 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Manual seat (standard) We recommend to adjust the seat in the following order:
1Fore/aft adjustment
Lift handle (1), slide seat to desired position and 
allow handle to reengage. Check for proper 
engagement before driving.
2Seat cushion tilt
Turn handwheel (2) forward or backward.
3Seat height adjustment
Pull handle (3) up to raise seat cushion.
Push handle (3) down to lower seat cushion.
4Backrest tilt
Turn handwheel (4) forward or backwards until 
your arms are slightly angled when holding the 
steering wheel. 
     
        
        Page 55 of 399
52 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
5Head restraint height
Raising:
Pull up on head restraint.
Lowering:
Push button (5) and push down on head restraint.
Adjust head restraint to support the back of the head 
approximately at ear level. The head restraint 
inclination can also be adjusted manually.Head restraint inclination
Push or pull the head restraint in direction of arrow. 
     
        
        Page 56 of 399

53 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Important!
Prior to operating the vehicle, the driver should adjust 
the seat height for proper vision as well as fore/aft 
placement and backrest angle to insure adequate 
control, reach, operation, and comfort. The head 
restraint should also be adjusted for proper height. See 
also airbag section on page 72 for proper seat 
positioning.
In addition, also adjust the steering wheel to ensure 
adequate control, reach, operation, and comfort.
Both the inside and outside rear view mirrors should be 
adjusted for adequate rearward vision.
Fasten seat belts. Infants and small children should be 
seated in a properly secured restraint system that 
complies with U.S. Federal Motor Vehicle Safety 
Standard 213 and Canadian Motor Vehicle Safety 
Standard 213.
All seat, head restraint, steering wheel, and rear view 
mirror adjustments as well as fastening of seat belts 
should be done before the vehicle is put into motion.
Wa r n i n g !
Children 12 years old and under must never ride in 
the front seat, except in a Mercedes-Benz 
authorized BabySmart
TM compatible child seat, 
which operates with the BabySmart
TM system 
installed in the vehicle to deactivate the passenger 
side front airbag when it is properly installed. 
Otherwise they will be struck by the airbag when it 
inflates in a crash. If this happens, serious or fatal 
injury can result.
According to accident statistics, children are safer 
when properly restrained in the rear seating 
positions than in the front seating positions. 
Infants and small children must ride in back seats 
and be seated in an appropriate infant or child 
restraint system, which is properly secured with 
the vehicle’s seat belt, fully in accordance with the 
child seat manufacturer’s instructions.A child’s risk of serious or fatal injuries is 
significantly increased if the child restraints are 
not properly secured in the vehicle and the child is 
not properly secured in the child restraint. 
     
        
        Page 64 of 399
61 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Head restraint height
Raising:
Pull up on head restraint.
If the head restraint is fully lowered, press button (2) to 
pull up.
Lowering:
Push button (2) and push down on head restraint.Adjust head restraint to support the back of the head 
approximately at ear level. The head restraint 
inclination can also be adjusted manually.
Important!
For safety reasons, always drive with the rear head 
restraints in upright position when the rear seats are 
occupied. 
Keep the area around head restraints clear of articles 
(e.g. clothing) to not obstruct the folding operation of 
the head restraints. 
     
        
        Page 68 of 399
65 Restraint systems
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Fastening seat belts
1Latch plate
2Buckle
3Release button
Push latch plate (1) into buckle (2) until it clicks. Do not 
twist the belt. A twisted seat belt may cause injury.The lap belt should be positioned as low as possible on 
your hips and not across the abdomen.
Tighten the lap portion to a snug fit by pulling shoulder 
portion up.
The shoulder portion of the seat belt must be pulled 
snug and checked for snugness immediately after 
engaging it.
Adjust seat belt so that shoulder portion is located as 
close as possible to the middle of your shoulder (it 
should not touch the neck). For this purpose, you can 
adjust the height of the belt outlet.
Wa r n i n g !
Always fasten your seat belt before driving off. 
Always make sure your passengers are properly 
restrained – even those sitting in the rear. 
     
        
        Page 69 of 399
66 Restraint systems
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
4Button for belt outlet height adjustment
To raise, slide belt outlet upward.
To lower, press button (4) and slide belt outlet 
downward.Operation of seat belts
The inertia reel stops the belt from unwinding during 
sudden stops or when quickly pulling on the belt.
The locking function of the reel may be checked by 
quickly pulling out the belt.
Adjust seat belt so that shoulder portion is located as 
close as possible to the middle of your shoulder (it 
should not touch the neck).
Caution!
For safety reasons, avoid adjusting the seat or seat back 
into positions which could affect the correct seat belt 
positioning.
Unfastening of  seat belts
Press release button (3) in the belt buckle (2).
Allow the retractor to completely rewind the seat belt by 
guiding the latch plate (1).
P91.40-2284-26
4 
     
        
        Page 91 of 399

88 Steering wheel adjustment
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Steering wheel adjustment (electrical)
(optional)
To adjust the steering wheel position, turn the electronic 
key in starter switch to position 1 or 2. With the driver’s 
door open, the steering wheel can also be operated with 
the electronic key removed or in starter switch 
position 0.The switch is located on the driver’s door.
1Steering column, lengthen or shorten column
Move the switch to the front or rear.
2Steering column, height
Move the switch up or down.
Note:
The steering wheel adjustment can be stored together 
with the seat and exterior mirror adjustment.
See page 93 for notes on the memory function.
Wa r n i n g !
Do not adjust the steering wheel while driving. 
Adjusting the steering wheel while driving could 
cause the driver to lose the control of the vehicle.When leaving the vehicle always remove the 
electronic key from the starter switch and lock your 
vehicle.The steering wheel adjustment feature can also be 
operated with the driver’s door open. Do not leave 
children unattended in the vehicle, or with access 
to an unlocked vehicle. Unsupervised use of vehicle 
equipment may cause serious personal injury.