Page 128 of 399

128 Controls in detailControl systemOperate the cassette player
Turn on the radio and select the ca-
sette player, see separate operating in-
structions.
Vehicles with COMAND*: Refer to sep-
arate operating instructions.
Press buttonè orÿ repeatedly
until the settings for the cassette cur-
rently being played are shown in the
display.
1Current side
Press buttonj to fast forward to
the next track.
Press buttonk to rewind the cas-
sette to the beginning of the current
track.
NAVI*
Refer to separate COMAND* operating in-
structions.
Distronic* menu
Use the Distronic menu to display the cur-
rent settings for your Distronic system.
What information is shown in the display
depends on whether the Distronic system
is active or inactive.
Please refer to the "Driving systems" sec-
tion of this manual (
page 197) for in-
structions on how to activate Distronic.
Press buttonè orÿ repeatedly
until you see one of the following two
pictures in the display.
iTo select a CD from the magazine,
press a number on the audio system or
the COMAND* system key pad located
in the center dashboard.
iTo select the reverse side of the tape,
press button below track number on
the audio system display, or enter re-
quest on the COMAND* system locat-
ed in the center dashboard.
Page 345 of 399

345 Practical hints
Batteries
Reconnecting the batteries
Turn off all electrical consumers.
Connect the positive lead and fasten its
cover.
Connect the negative lead.Batteries contain materials that can harm
the environment if disposed of improperly.
Large 12-volt storage batteries contain
lead. Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.Warning!
G
Never charge a battery while still installed in
the vehicle. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.!NEVER invert the terminal connections!
The battery, its filler caps and the vent
tube must always be securely installed
when the vehicle is in operation.
iThe following procedures must be car-
ried out following any interruption of
battery power (e.g. due to reconnec-
tion):
Set the clock (
page 136) (vehi-
cles with COMAND*: see COMAND
operator’s manual).
Resynchronize the front seat head
restraints (
page 104).
Resynchronize the ESP
(page 75).
Re-enter the radio code (see radio
operating instructions).
Resynchronize the side windows
(page 186).
Resynchronize the sliding/pop-up
roof* (
page 189).
Page 380 of 399
380Vehicle level control
The ground clearance of the vehicle is
automatically controlled according to a
selected setting and speed.The driver
can set the ground clearance manually
for example on very rough roads.VIN
(V
ehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.Voice recognition system*
Voice control system for car phones,
portable cell phones and audio sys-
tems (radio, CD, etc.).
Page 391 of 399

391 Index
Storing exterior mirror parking
position 111
MON 260
MON (Motor Octane Number) 378
Mph or km/h in speedometer 134
Multicontour seat* 104
Multifunction display 121, 378
Selecting language 135
Standard display 125
Multifunction display messages
ABS 296
BAS 297, 298
Batteries 303, 304
Brake pads 305
Coolant 311, 312
Coolant level 311
Distronic* 300
Doors 323
Easy-entry/exit feature 310
Engine oil level 300
Fuel reserve tank 313, 323
Hood 313
Key 313, 323
KEYLESS-GO* card 309
Lamps 313–??
Parking brake 310SBC brake system 305, 306
Seat belts 310
Steering gear oil level 318
Telephone* 309
Trunk lid 310
Washer fluid 311
Multifunction steering wheel 24, 122,
378
Buttons 122
N
Network provider 148
Night security illumination 114
O
Occupant safety 56
Airbags 57
Children and airbags 58
Children in the vehicle 65
Fastening the seat belt 40
Infant and child restraint systems 65
Seat belts 40, 59
Oil
Viscosity 376
One-touch gearshifting 152
Canceling gear range limit 152
Downshifting 152Upshifting 152
Opening 331
Ashtray 231
Doors from the inside 93
Glove box 226
Side windows 184
Sliding/pop-up roof* 187
Sliding/pop-up roof* with
SmartKey 188, 192
Trunk 88, 96
Trunk from the inside 94
Windows 184
Windows with SmartKey 185
Operating
Cassette player 128
CD player* 127, 128
Garage door opener 246
Integrated remote control 246
Radio 127
Safety 16
Telephone* 147
Vehicle outside the USA and
Canada 13
Operating safety 16
Operator’s Manual 10
Outside temperature indicator 120