Page 20 of 290

17 Instruments and controls
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index 1Side defroster outlet, adjustable
2Cruise control switch, see page 166
3Side air outlet, adjustable
4Combination switch, see page 83
5Exterior lamp switch, see page 81
6Hood lock release, see page 194
7Instrument cluster, see page 70
8Horn (with key in steering lock position 1 or 2)
9Airbag
10Steering wheel adjustment handle, see page 65
11Steering lock with ignition / starter switch, 
seepage142
12Voice recognition system switch, see separate 
operating instructions
13Cup holder, see page 114
14Center air outlets, adjustable15Air volume control for center air outlets
16Climate control, see page 86
Rear window defroster, see page 90
17Glove box (illuminated with key in steering lock 
position 1 or 2), see page 114
18Audio system, see page 93
19Hazard warning flasher switch, see page 85
20Central locking switch, see page 30
21Left seat heater switch, see page 42
22Headlamp washer switch, see page 82
23ESP control switch, see page 175
24Tow- away alarm  s witch, s ee page 3 7
25Right seat heater switch, see page 42
26Ashtray, coin holder, see page 116
27Storage compartment 
     
        
        Page 42 of 290
39 Seats
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index The switches are located on each seat.We recommend to adjust the seats 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.
P91.29-2105-26
2
2
3
1
4 
     
        
        Page 44 of 290

41 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 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 213.1.
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.  
     
        
        Page 62 of 290

59 Restraint systems
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Your vehicle was originally equipped with airbags 
which are designed to activate in certain impacts 
exceeding a preset threshold to reduce the potential 
and severity of injury. It is important to your safety 
and that of your passenger that you replace deployed 
airbags and repair any malfunctioning airbags to 
ensure the vehicle will continue to provide crash 
protection for occupants.
Wa r n i n g !
To reduce the risk of injury when the front airbags 
inflate, it is very important for the driver and 
passenger to always be in a properly seated 
position and to wear their seat belts.For maximum protection in the event of a collision 
always be in normal seated position with your back 
against the backrest. Fasten your seat belt and 
ensure that it is properly positioned on the body.Since the airbag inflates with considerable speed 
and force, a proper seating and hands on steering 
wheel position will help to keep you at a safe 
distance from the airbag. Occupants who are 
unbelted, out of position or too close to the airbag 
can be seriously injured by an airbag as it inflates 
with great force in the blink of an eye:
• Sit properly belted in an upright position with 
your back against the backrest.• Adjust the driver’s seat as far as possible 
rearward, still permitting proper operation of 
vehicle controls. The distance from the center 
of the driver’s breastbone to the center of the 
airbag cover on the steering wheel must be at 
least ten inches (25 cm) or more. You should be 
able to accomplish this by a combination of 
adjustments to the seat and steering wheel. If 
you have any problems, please see your 
authorized Mercedes-Benz Center.• Do not lean with your head or chest close to the 
steering wheel or dashboard.• Keep hands on the outside of steering wheel 
rim. Placing hands and arms inside the rim 
can increase the risk and potential severity of 
hand / arm injury when the driver front airbag 
inflates.• Adjust the passenger seat as far as possible 
rearward from the dashboard when the seat is 
occupied. 
     
        
        Page 68 of 290

65 Adjusting telescoping steering column
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Adjusting telescoping steering column
Unlocking:
Pull handle (1) out to its stop. The indicator lamp, 
located in the instrument cluster, comes on.
Adjusting:
To lengthen or shorten the steering column, pull out or 
push in steering wheel.
Locking:
Push handle (1) in until it engages. The indicator lamp, 
located in the instrument cluster, goes out.Important!
With the key in steering lock position 2, the indicator 
lamp in the instrument cluster comes on. It should go 
out when the engine is running.
If the indicator lamp does not go out after starting the 
engine, the adjustable steering column is not locked 
properly.
Do not drive the vehicle until you have properly locked 
the steering column.
AU
DIO
TEL
   AUDIO
TEL
   
1
AUDIO
TEL
   AUDIO
TEL
   P46.15-2031-26
Wa r n i n g !
Do not adjust the steering wheel while driving. The 
telescoping adjustment must be locked while 
driving. Adjusting the steering wheel while 
driving, or driving without the telescoping 
adjustment locked could cause the driver to lose 
control of the vehicle.