Page 108 of 442

106 Controls in detailMemory function*
You can store up to three different settings 
for each SmartKey.
The following settings are stored when 
using the buttons on the driver’s door:
Driver’s seat, backrest and head 
restraint position
Steering wheel position
Exterior rear view mirror positions
These key-dependent memory settings 
can be deactivated if desired. For informa-
tion on key-dependent memory settings, 
see “Setting key-dependency” 
(
page 147).The following settings are not 
key-dependent. They are stored when 
using the buttons on the front passenger 
door:
Front passenger seat, backrest and 
head restraint position
!Prior to operating the vehicle, the 
driver should check and adjust the seat 
height, seat position fore and aft, and 
seat backrest angle if necessary, to 
ensure adequate control, reach and 
comfort. The head restraint should also 
be adjusted for proper height. See also 
the section on air bags (
page 59) for 
proper seat positioning.
In addition, adjust the steering wheel to 
ensure adequate control, reach, opera-
tion and comfort. Both the interior and 
exterior rear view mirrors should be 
adjusted for adequate rear 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 
Standards 213 and 225 and Canadian 
Motor Vehicle Safety Standards 213 
and 210.2.
Warning!
G
Do not activate the memory function while 
driving. Activating the memory function 
while driving could cause the driver to lose 
control of the vehicle. 
     
        
        Page 109 of 442

107 Controls in detail
Memory function*
The memory button and memory position 
switch are located on the door.
1Memory button
2Memory position switch
Switch on ignition (
page 33).
or
Open the respective door.
Storing positions into memory
Adjust the seat, steering wheel and 
exterior rear view mirrors to the 
desired position (
page 35).
Turn memory position switch2 to the 
selected memory position.
Press memory button1.
Release memory button1 and press 
memory position switch2 within 
three seconds.
All settings are stored to the selected 
position.
Recalling positions from memory
Turn memory position switch2 to the 
selected memory position.
Press and hold memory position 
switch2 until the seat, steering wheel 
and exterior rear view mirrors have 
completely moved to the stored 
positions.!Do not operate the power seats using 
the memory button if the seat backrest 
is in an excessively reclined position. 
Doing so could cause damage to front 
or rear seats.iReleasing the memory position switch 
stops movement to the stored 
positions immediately. 
     
        
        Page 148 of 442
146 Controls in detailControl system
The selection marker is on the current 
setting.
Press buttonæ orç to switch 
the automatic central locking 
On or 
Off
.Convenience submenu
Access the 
Convenience
 submenu via the 
Settings
 menu. Use the 
Convenience
 
submenu to change the settings for a 
number of convenience features.
The following functions are available:Activating easy-entry/exit feature*
Use this function to activate and 
deactivate the easy-entry/exit feature 
(
page 98). 
Function
Page
Activating 
easy-entry/exit feature*
146
Setting key-dependency
147
Setting parking position* for 
exterior rear view mirror
148
Warning!
G
You must make sure no one can become 
trapped or injured by the moving steering 
wheel and driver’s seat when the 
easy-entry/exit feature is activated. 
To cancel seat/steering wheel movement, 
do one of the following:
Press seat adjustment switch* 
(page 30).
Move steering column stalk* 
(page 40).
Press memory position switch* 
(page 107).
 
     
        
        Page 149 of 442

147 Controls in detail
Control system
Move the selection marker with 
buttonæ orç to the Convenience
 submenu.
Press buttonj ork repeatedly 
until the message 
Easy-entry feature
 
appears in the multifunction display.
The selection marker is on the current 
setting.
Press buttonæ orç to change 
the easy-entry/exit setting.
The following settings are available for 
the easy-entry/exit feature:Setting key-dependency
Use this function to set whether the 
memory settings for the seats, the steering 
wheel and the mirrors should be stored 
separately for each SmartKey 
(
page 106).
Move the selection marker with 
buttonæ orç to the Convenience
 submenu.
Press buttonj ork repeatedly 
until the message 
Key dependency
 
appears in the multifunction display.
The selection marker is on the current 
setting.
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle. 
Children could open the driver’s door and 
unintentionally activate the easy-entry/exit 
feature, which could result in an accident 
and/or serious personal injury.
Off
The easy-entry/exit 
feature is 
deactivated
Steer. Column
Only the steering 
column is moved
St.col.+seat
Both the steering 
column and the seat 
are moved
 
     
        
        Page 403 of 442

401 Technical terms
Instrument cluster
The displays and indicator/warning 
lamps in the driver’s field of vision, 
including the tachometer, speedo-
meter, engine temperature display and 
fuel gauge.
Kickdown
Depressing the accelerator past the 
point of resistance shifts the transmis-
sion down to the lowest possible gear. 
This very quickly accelerates the 
vehicle and should not be used for 
normal acceleration needs.
Lock button
Button on the door which indicates 
whether the door is locked or 
unlocked. Pushing the lock button 
down on an individual door from inside 
will lock that door.Maintenance System (U.S. vehicles)
Maintenance service indicator in the 
multifunction display that informs the 
driver when the next vehicle mainte-
nance service is due. The Maintenance 
System in your vehicle tracks distance 
driven and the time elapsed since your 
last maintenance service, and calls for 
the next maintenance service accord-
ingly.
Memory function*
Used to store three individual seat, 
steering wheel and mirror positions for 
each SmartKey.
MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline 
as determined by a standardized 
method. It is an indication of a 
gasoline's ability to resist undesired 
detonation (knocking). The average of 
both the MON (Motor Octane Number) 
and ->RON (Research Octane Number) 
is posted at the pump, also known as 
ANTI-KNOCK INDEX.Multifunction display
Display field in the instrument cluster 
used to present information provided 
by the control system.
Multifunction steering wheel
Steering wheel with buttons for 
operating the control system.
Overspeed range
Engine speeds within the red marking 
of the tachometer dial. Avoid this 
engine speed range, as it may result in 
serious engine damage that is not 
covered by the Mercedes-Benz Limited 
Warranty.
Poly-V-belt drive
Drives engine-components (alternator, 
AC compressor, etc.) from the engine. 
     
        
        Page 413 of 442

411 Index
Consumer information 397
Control and operation 
of radio transmitters 272
Control system 121, 400
AUDIO menu 127
Convenience submenu 146
Display digital speedometer 127
Display outside temperature 127
Functions 122, 125
Instrument cluster 
submenu 135, 137
Lighting submenu 141
Menus 124, 125
Multifunction display 121
Multifunction steering wheel 122
NAV* menu 130
Selecting radio system 128
Selecting satellite radio* system 128
Settings menu 132
Standard display menu 126
Submenu Time/Date 137Submenus 123, 125
TEL* menu 150
Trip computer menu 148
Vehicle status 
message memory menu 130
Vehicle submenu 145
Controller Area Network see CAN system
Convenience submenu 146
Activating easy-entry/exit 
feature* 146
Setting key dependency 147
Setting parking position* for 
exterior rear view mirror 148
Coolant 283
Adding 283
Anticorrosion/antifreeze 
quantity 394
Capacities 387, 388
Checking level 283
Messages in display 316–318
Temperature 274
Temperature gauge 118Coolant level
Checking 277, 283
Coolant temperature gauge 25
Coolants 394
Cruise control 231, 400
Canceling 232
Driving downhill 232
Driving uphill 232
Fine adjustment 233
Message in display 319
Setting current speed 232
Setting speeds 233
Cruise control lever 231
Cruising range, fuel 393
Cup holder
In rear seat armrest 244
Cup holders
Cleaning 299
In front of seat armrest 243
Customer Assistance Center see CAC 
     
        
        Page 420 of 442

418 IndexIgnition 33
Switching on, 
automatic transmission* 47
Switching on, 
manual transmission 46
Immobilizer 83
Activating 83
Deactivating 83
Indicator lamps see 
Lamps, indicator and warning
Infant and child restraint systems 67
Installing 72
LATCH-type child seat anchors 73
Information
About service and warranty 10
Inside door handle 92
Installing
Infant and child restraint systems 72
Ski sack* (Canada only) 237
Towing eye bolt 368
Wiper blades 352Instrument cluster 24, 117, 401
Cleaning 298
Coolant temperature gauge 118
Illumination 117
Lamps in 302–307
Multifunction display 121
Outside temperature indicator 119
Selecting language 136
Instrument lighting 117
Instruments and controls see Cockpit
Interior lighting 115
Activating automatic control 115
Deactivating automatic control 115
Delayed shut-off 145
Manual operation 115
Interior rear view mirror
Adjusting 41
Antiglare 168Interior storage spaces 241
Armrest 242
Cup holder in rear seat armrest 244
Cup holders in front of 
seat armrest 243
Glove box 241
Parcel net in 
front passenger footwell 245
Intermittent wiping 52
J
Jack 329
Jump starting 363
K
Key 191
Key dependency memory
Settings 147
Key positions in starter switch 33
Key, mechanical 337 
     
        
        Page 423 of 442

421 Index
Manual headlamp mode 110
Manual operation
Interior lighting control 115
Manual operations
Fuel filler flap 339
Locking the vehicle 338
Tilt/sliding sunroof* 341
Unlocking the driver’s door 337
Unlocking the trunk 338
Unlocking transmission 
gear selector lever 340
Manual seat
Adjusting 36
Adjusting backrest tilt 36
Adjusting head restraint height 37
Adjusting head restraint tilt 37
Adjusting seat cushion tilt 36
Adjusting seat height 36
Front seat head restraints 100
Seat fore and aft adjustment 36Manual shift program (C 55 AMG only)
Activating 166
Automatic transmission* 165
Deactivating 167
Manual transmission 154
Gearshift lever 46, 155
Shifting into reverse 155
Starting with 46
MB Tex upholstery
Cleaning 300
Mechanical key 337
Memory
TV station 200
Memory function* 106, 401
Recalling positions from 
memory 107
Storing exterior rear view mirror 
parking position 108
Storing key dependent settings 107Menus 122
AUDIO 127
In control system 124, 125
NAV* 130
Settings menu 132
Standard display 126
Submenus 123
TEL* 150
Trip computer 148
Vehicle status message memory 130
Microphone
Hands-free microphone 29
Miles/kilometers in speedometer
Setting 135
Minispare wheel 383
Minispare wheel (except C 55 AMG) 333
Mirrors
Activating exterior rear view 
mirror parking position* 170
Adjusting 41
Automatic antiglare* 
for interior mirror 169