Page 185 of 434

184 Controls in detailRetractable hardtop
Retractable hardtopOpening and closing the retractable hardtop
For safety reasons, the retractable hardtop 
can only be opened and closed when the 
vehicle is standing still.Warning!
G
Before operating the switch for the retract-
able hardtop, make sure that no persons 
can be injured by the moving parts (retract-
able roof, roof frame, and trunk lid) due to in-
attention.
Hands must never be placed near the roof 
frame, upper windshield area, hardtop, shelf 
behind roll bars, or trunk lid while the re-
tractable hardtop is being raised or lowered. 
Serious personal injury may occur.
If potential danger exists, release the re-
tractable hardtop switch. This immediately 
interrupts the raising or lowering procedure. 
You then can operate the hardtop switch to 
raise or lower the hardtop away from the 
danger zone.
Warning!
G
When leaving the vehicle, always remove the 
SmartKey from starter switch, take the 
SmartKey with KEYLESS-GO* with you, and 
lock your vehicle. Do not leave children un-
attended in the vehicle, or with access to an 
unlocked vehicle. Unsupervised use of vehi-
cle equipment can cause an accident 
and/or serious personal injury.!Never sit or place heavy objects on the 
rear shelf. Doing so could cause dam-
age to the retractable hardtop and the 
rear shelf.
!When opening and closing the retract-
able roof, make sure
there is sufficient clearance for the 
hardtop to move up and the trunk 
lid to move back
the luggage cover is extended and 
closed
the trunk lid is closed
no roof luggage carrier is installed
the outside temperature is above 
+5°F (–15°C)
Otherwise the roof and trunk of the ve-
hicle could be damaged. 
     
        
        Page 186 of 434
185 Controls in detail
Retractable hardtop
Luggage cover
The luggage cover is located in the trunk.
1Handle
2Holders
Closing luggage cover
Pull out the luggage cover using 
handle1.
Hook the luggage cover into left and 
right side holders2.Opening luggage cover
Unhook luggage cover from side hold-
ers.
While holding on to handle1, guide 
luggage cover back into its storage 
compartment. Opening the retractable hardtop with 
the switch
Hardtop switchBefore pulling on the hardtop switch, you 
must make sure
the parking brake is engaged 
(page 45)
the luggage cover is closed, see Lug-
gage cover
the trunk lid is closed 
the ignition is switched on
!To prevent damage to the hardtop or 
luggage/cargo when lowering the roof:
Load trunk only to the height of the 
luggage cover.
Do not permit luggage/cargo to 
push up the closed luggage cover.
Do not load anything on top of or in 
front of the luggage cover.
Do not place anything on the shelf 
behind the roll bar. 
     
        
        Page 189 of 434

188 Controls in detailRetractable hardtop
Opening the retractable hardtop with 
the SmartKey (Summer opening 
feature)
Aim the transmitter eye at the door 
handle.
Press and hold button Œ until the 
retractable hardtop is completely 
open.
The seat ventilation for the driver’s seat 
switches on. The rear side windows 
open. In the tachometer display you 
will see the message 
Vario-Roof open
.
Release button Œ to interrupt pro-
cedure.
Warning!
G
If the retractable hardtop does not com-
pletely open or close, the roof hydraulics will 
lose pressure and the retractable hardtop is 
lowered
after approximately seven minutes 
when the ignition is switched on
after approximately 15 seconds when 
the ignition is switched off
Shortly before the hardtop is lowered, a 
warning will sound and the hardtop switch 
lamp will flash. In the speedometer display 
you will see 
K
, in the tachometer display 
you will see the message 
being lowered!
Properly lock the retractable hardtop 
(page 187) before continuing to drive.
Warning!
G
Before operating the switch for the retract-
able hardtop make sure that no persons can 
be injured by the moving parts (retractable 
roof, roof frame, and trunk lid) due to inat-
tention.
Hands must never be placed near the roof 
frame, upper windshield area, hardtop, shelf 
behind roll bars, or trunk lid while the re-
tractable hardtop is being raised or lowered. 
Serious personal injury may occur.
If potential danger exists, release the re-
spective button on the SmartKey. This im-
mediately interrupts the raising or lowering 
procedure. You then can operate 
Œ
 or 
‹
 to raise or lower the hardtop away 
from the danger zone. 
     
        
        Page 222 of 434

221 Controls in detail
Useful features
Load assist in the trunk
To facilitate trunk loading after opening the 
lid, use the load assist feature to raise the 
retracted hardtop from its storage position 
in the trunk.
1Retracted hardtop
2Luggage cover
3Load assist buttonRaising the hardtop
The hardtop can only be raised when the 
luggage cover is closed and the trunk lid is 
completely opened.
Press button3.
The hardtop rises a short distance. 
Button3 comes on brightly. You can 
now open the luggage cover.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.
Warning!
G
To prevent injuries, make sure that there is 
no possibility of body parts getting caught in 
moving parts. If potential danger exists, 
press the switch again. This will immediately 
stop the movement of the hardtop.
!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, 
button3 will flash and a warning will 
sound. 
     
        
        Page 416 of 434

415 Index
N
Navigation system
Operating 134
Night security illumination 143
O
Octane number 401
Odometer, main 23
Oil
Adding 257
Consumption 255
Filler neck 257
Oil level
Checking 252
One-touch gearshifting 156
Canceling gear range limit 156
Downshifting 156
Upshifting 156Opening
Doors from the inside 99
Fuel filler flap 250
Hood 253
Luggage cover 185
Retractable hardtop (SmartKey) 188
Retractable hardtop (switch) 185
Side windows 182
Storage compartment in the 
armrest 216
Storage compartment in the center 
console 216
Sunshade 192
Trunk from inside vehicle 100
Trunk lid 99
Windows 181
Operating
CD player 134
Navigation system 134
Radio 133
Telephone* 152
Overhead control panel 27
Overspeed range 125, 400P
Panic alarm 74
Panic button on SmartKey 74
Panorama roof*
Sunshade 191
Sunshade closing 192
Sunshade opening 192
Parcel net in passenger footwell 217
Parcel net in trunk 217
Parctronic* deactivation switch 26
Parking 242
Parking assistance (Parktronic*) 210
Parking brake
Engaging 52
Releasing 45
Parking brake pedal 21
Parking lamps 332
Replacing the bulbs 335
Switching on 117
Parking position
Exterior rear view mirrors 115, 149, 
167 
     
        
        Page 418 of 434

417 Index
Regular checks 252
Regular driving style 208
Remote Vehicle Diagnostics 400
Replacing
Backup lamp bulbs 335
Brake lamp bulbs 332
Bulbs 331
Front lamp bulbs 334
Front turn signal bulbs 334
Fuses 369
High beam bulbs 334
License plate lamp bulbs 336
Low beam bulbs 334
Rear fog lamp bulb 335
Rear lamp bulbs 332, 335
Rear turn signal bulbs 335
Wiper blades 337
Reset button 23
Resetting
All functions (control system) 137Fuel consumption statistics 151
Service indicator (FSS) 272
Trip odometer 125
Residual heat utilization 178
Restraint systems 58
Airbags 58
Child seat recognition 58
Child seats 58
Emergency Tensioning Device 
(ETD) 58, 68
Seat belts 58, 65
Resume function
Cruise control 195
Distronic* 202
Retractable hardtop 401
Closing (SmartKey) 189
Closing (switch) 186
Convenience feature 189
Locking after raising/lowering 187
Message in display 309
Opening (SmartKey) 188Opening (switch) 185
Problems when operating 189
Summer opening feature 188
Roll bar 69, 401
Lowering 70
Messages in display 316
Raising 69
Warning lamp 23
Roll bar buttons 26
RON 251, 401
Roof see Retractable hardtop
Rubber parts
Cleaning 280
S
Satellite-radio* 133
SBC brake system 75, 81, 401
Activation 82
Deactivation 83
Driving hints 83
Messages in display 299, 300