Page 110 of 434
109 Controls in detailSeats
Multicontour backrest* (standard on SL 600 and SL 55 AMG)
The multicontour backrest has inflatable
air cushions built into the seat backrest to
provide additional lumbar and side sup-
port.
The seat backrest cushion height and cur-
vature can be continuously varied with
switches on the lower side of the seat
when the ignition is switched on.1Shoulder region support
2Side bolsters adjustment
3Massage function (PULSE)
4Lumbar region support
Make sure the ignition is switched on.
All the lamps in the instrument cluster
come on.
Shoulder region support
Press æ or ç on switch1.
The air cushion inflates or deflates.Lumbar region support
Press k or j on rocker
switch4.
This selects the air cushion you wish to
adjust.
Press æ or ç on rocker
switch4.
The air cushion inflates or deflates.
Side bolsters adjustment
Press switch2 to the right or left.
The lateral support increases or de-
creases.
Page 111 of 434

110 Controls in detailSeatsMassage function (PULSE)
You can reduce muscle tension during long
trips by periodically using the massage
function.
Press button3.
The indicator lamp on button3 comes
on. The air cushions in the lumbar re-
gion inflate and deflate rhythmically.
Seat heating
Vehicles without seat ventilation*
The switch is located on the door.
1Normal heating
2Rapid heating
Make sure the ignition is switched on.
All the lamps in the instrument cluster
come on.Switching on seat heating
Press lower switch position1.
A red indicator lamp on the switch
comes on.
Switching off seat heating
Press lower switch position1 again.
Switching on rapid seat heating
Press upper switch position2.
Both red indicator lamps on the switch
come on.
iThe massage function switches off au-
tomatically after approximately eight
minutes. The indicator lamp goes out.
iThe seat heating will be automatically
switched off after approximately
30 minutes. iThe system switches to normal heating
mode after approximately five minutes.
Only the right-hand indicator lamp re-
mains lit.
Page 417 of 434

416 IndexParktronic* 26, 210, 400
Activating 212
Cleaning system sensors 277
Deactivating 212
Malfunctioning 213
Minimum distance 211
Range 211
Rear sensors 211
System sensors 277
Warning indicators 21, 211
Passenger side
Front airbag 64
Head-thorax airbag 65
Parcel net in footwell 217
Pedals 239
Phone book* 153
Loading 154
Quick search 154
Phone number*
Dialing 153
Redialing 154Plastic and rubber parts
Cleaning 280
Poly-V-belt drive 400
Layout 375
Power assistance 240
Power seat
Adjusting backrest tilt 36
Adjusting head restraint height 36
Adjusting head restraint tilt 36
Adjusting seat cushion depth 36
Adjusting seat cushion tilt 36
Adjusting seat height 36
Power train 400
Power window
Closing with KEYLESS-GO* 183
Power windows 181
Side windows 181
Synchronizing 183
Problems while driving 49
Program mode selector switch 400
Automatic transmission 26, 161
PULSE function (Massage function) 110Q
Quick search
Phone book* 154
R
Radio
Satellite* 133
Select station 133
Station search 133
Station selection setting 146
Radio transmitters
Control and operation 247
Range (distance to empty)
Calling up 152
Reading lamp 27
Rear lamps see Tail lamps
Rear luggage compartment 218
Rear view mirrors see Mirrors
Rear window defroster 169, 177
Redial memory 154
Refuelling 250