Page 33 of 376

33 Getting started
Adjusting
The seat adjustment switch is located in 
the door.
1Seat fore and aft adjustment
2Seat height
3Seat cushion tilt
4Backrest tilt
5Seat cushion depth
6Head restraint height
Switch on the ignition by turning the 
key in the starter switch to position2 
or pressing the KEYLESS GO* 
start/stop button twice.Seat fore and aft adjustment 
Press the switch forward or backward 
in the direction of arrow1. 
Seat height 
Press the switch up or down in the di-
rection of arrow2. 
Seat cushion tilt
Press the switch up or down in the di-
rection of arrow3 until your upper legs 
are lightly supported.
Backrest tilt
Press the switch forward or back in the 
direction of arrow4.Seat cushion depth
Press the switch forward or back in the 
direction of arrow5.
Head restraint height
Press the switch up or down in the di-
rection of arrow6.
!When moving the seat, be sure that 
nothing is in the auxiliary cup holder 
and that there are no items in the foot-
well or behind the seats. Otherwise the 
seats could be damaged. 
Warning!
G
For your protection, drive only with properly 
positioned head restraints.
Adjust head restraint to support the back of 
the head approximately at ear level.
Do not drive the vehicle without the seat 
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent. 
     
        
        Page 191 of 376
191 Controls in detail
Useful features
Auxiliary cup holder
You can fasten the auxiliary cup holder 
onto the left front side of the passenger 
seat.
Inserting the auxiliary cup holder
1Cover
Pull up the cover and place it in a 
storage compartment.2Auxiliary cup holder
3Insert
Press the auxiliary cup holder2 in the 
direction of the arrow until it snaps in 
place.
You can now place a larger container in 
the holder. For even larger containers 
you can take out the insert3. Make 
sure that the container does not press 
against the glove box.
Warning!
G
When not in use, keep the cup holder 
closed. Place only containers that fit into the 
cup holder to prevent spills. Use lids on 
open containers and do not fill containers to 
a height where the contents, especially hot 
liquids, could spill during vehicle maneu-
vers. 
     
        
        Page 192 of 376

192 Controls in detailUseful features
Removing the auxiliary cup holder
Pull the auxiliary cup holder2 
(page 191) up and out of the recep-
tacle and place it in a storage compart-
ment.
Replace the cover1 (
page 191) on 
the opening and press it down until it 
snaps in place.
Door storage compartments
1Release button
2Lid
Opening
Press the release button.
The lid opens upwards.
Warning!
G
When not in use, remove the auxiliary cup 
holder. Place only containers that fit into the 
auxiliary cup holder to prevent spills. Use 
lids on open containers and do not fill con-
tainers to a height where the contents, es-
pecially hot liquids, could spill during vehicle 
maneuvers.iWhen you move the seat forward, the 
auxiliary cup holder turns to the side.
When you move the seat back, turn the 
auxiliary cup holder back until it stops 
in its original position.
Warning!
G
Keep the door storage compartments 
closed while vehicle is in motion. Failure to 
d o  s o  m a y  c a u s e  t h e  s e a t  b e l t  t o  c a t c h  a t  t h e  
rear and prevent proper positioning of the 
seat belt. 
     
        
        Page 199 of 376

199 Controls in detail
Useful features
Lowering the hardtop
The hardtop can only be lowered when the 
luggage cover is closed and the trunk lid is 
completely opened.
Close the luggage cover.
Press button3.
The hardtop lowers. Button3 is dimly 
lit.
Electrical outlet
An electrical outlet is located on the right 
side of the trunk.
Turn the key in the starter switch to 
position1 or2.
Flip up cover and insert electrical plug 
(cigar lighter type).
Telephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only 
be used inside the vehicle if they are con-
nected to an antenna that is installed on 
the outside of the vehicle.
The external antenna must be approved by 
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved 
external antenna. Refer to the radio trans-
mitter operation instructions regarding use 
of an external antenna.
!Only close the trunk if the roof is com-
pletely lowered. Otherwise you could 
damage the hardtop.
If you begin to close the trunk lid before 
the hardtop is completely lowered, the 
button3 will blink and a warning will 
sound.
iThe electrical outlet can be used to ac-
commodate electrical consumers (e.g. 
air pump, auxiliary lamps) up to a max-
imum of 180 W.
Warning!
G
Never operate radio transmitters equipped 
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna) 
from inside the vehicle while the engine is 
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or serious 
personal injury. 
     
        
        Page 358 of 376

358 IndexAnti-theft alarm system 75
Arming 76
Canceling the alarm 76
Disarming 76
Anti-theft systems
Anti-theft alarm system 75
Tow-away alarm 77
Aquaplaning see Hydroplanning 219
Armrest
Storage space 193
Ashtray 23, 196
ATF (automatic transmission fluid) 230
Automatic climate control 23, 147
Center air vents 23
Deactivating 154
Residual heat utilization 154
Side air vents 23
Temperature sensor 25
Automatic transmission 137
Emergency operation (Limp Home 
Mode) 144
Gear ranges 139
Gear shifting malfunctions 144
Kickdown 142
Manual shift program mode 
(SL 55 AMG Kompressor) 142Manual shifting 138
One-touch gearshifting 138
Program mode selector switch 24, 
141
Selector lever 24
Selector lever position 137
Transmission fluid 230
Winter program mode 141
Auxiliary cup holder 191
Inserting 191
Removing 192
B
BabySmart
TM airbag deactivation 
system 64, 351
BabySmartTM compatible child 
seats 351
Backrest supports
Lumbar region 94
Shoulder region 94
Backrest tilt 33
Backup lamp bulbs 296
Backup lamps 299
BAS 68, 69, 351
Messages in display 260Batteries, electronic key
Changing 293
Check lamp 81
Checking 82
Batteries, KEYLESS-GO* card
Changing 294
Check lamp 87
Checking 87
Batteries, vehicle 232
Charging 321
Disconnecting 320
For electrical consumers 232, 289, 
319
For starter 232, 319
Messages in display 263, 264
Reconnecting 321
Removing 321
Service 319
Bi-Xenon headlamps 351
Block heater 240
Brake fluid 226, 342, 343
Brake lamp bulb, high mounted 296
Brake lamp bulbs, left and right 296
Brake pads
Message in display 265