ContentsSafety and Security........................... 59
Occupant safety................................... 60
Air bags .......................................... 61
Seat belts ....................................... 67
Roll bars ......................................... 71
Children in the vehicle .................... 72
Blocking of rear side
window operation ........................... 82
Panic alarm .......................................... 83
Activating ....................................... 83
Deactivating ................................... 83
Driving safety systems ......................... 84
ABS ................................................ 84
BAS ................................................ 85
ESP ................................................. 86
Anti-theft systems................................ 89
Immobilizer..................................... 89
Anti-theft alarm system .................. 89
Tow-away alarm ............................. 91
Controls in detail............................... 93
Locking and unlocking ......................... 94
SmartKey ....................................... 94
SmartKey with KEYLESS-GO* ........ 98
Opening the doors
from the inside ............................. 105
Opening the trunk ........................ 106
Closing the trunk.......................... 107
Trunk lid emergency release ........ 109
Automatic central locking ............ 110
Locking and unlocking
from the inside ............................. 110
Seats ................................................. 112
Easy-entry/exit feature ................ 112
Removing and installing
front seat head restraints............. 113
Rear seat head restraints ............. 114
Multicontour seat* ....................... 116
Seat heating* ............................... 117
Seat ventilation* .......................... 118Memory function ............................... 119
Storing positions into memory ..... 120
Recalling positions from memory . 120
Storing exterior rear view
mirror parking position ................ 121
Lighting ............................................. 122
Exterior lamp switch .................... 122
Combination switch ..................... 126
Cornering fog lamps*
(CLK 320 with
Bi-Xenon* headlamps) ................. 126
Hazard warning flasher ................ 127
Interior lighting ............................ 128
Door entry lamps ......................... 129
Trunk lamp ................................... 129
Instrument cluster ............................. 130
Instrument cluster illumination .... 130
Coolant temperature indicator ..... 131
Trip odometer .............................. 131
Tachometer .................................. 132
Outside temperature indicator ..... 132
Contents
Uniform Tire Quality Grading
Standards (U.S. vehicles) ............. 333
Tire ply material ........................... 335
Tire and loading terminology ........ 335
Rotating tires ............................... 339
Winter driving .................................... 340
Winter tires .................................. 340
Block heater* (Canada only) ........ 341
Snow chains................................. 341
Maintenance...................................... 342
Clearing the maintenance
service indicator........................... 343
Maintenance
service term exceeded ................. 343
Calling up the
maintenance service indicator ..... 343
Resetting the
maintenance service indicator ..... 344
Vehicle care ....................................... 345
Cleaning and care of vehicle ........ 345
Practical hints.................................. 353
What to do if …? ................................. 354
Lamps in instrument cluster ......... 354
Lamp in center console................. 361
Vehicle status messages
in the multifunction display........... 363
Where will I find...? ............................. 391
First aid kit.................................... 391
Vehicle tool kit .............................. 391
Minispare wheel............................ 394
Unlocking/locking in an emergency... 397
Unlocking the vehicle.................... 397
Locking the vehicle ....................... 398
Fuel filler flap ................................ 399
Manually unlocking
the gear selector lever .................. 400
Opening/closing in an emergency ..... 401
Operating roll bars manually ......... 401
Soft top emergency operation ...... 403
Replacing batteries in the SmartKey/
SmartKey with KEYLESS-GO* ............. 412
SmartKey ...................................... 412
SmartKey with KEYLESS-GO* ....... 413Replacing bulbs .................................. 414
Bulbs............................................. 414
Replacing bulbs for front lamps .... 416
Replacing bulbs for rear lamps ..... 420
Replacing wiper blades ...................... 421
Removing wiper blades ................. 421
Installing wiper blades .................. 421
Flat tire............................................... 422
Preparing the vehicle .................... 422
Mounting the Minispare wheel...... 423
Battery ............................................... 427
Disconnecting the battery ............ 428
Removing the battery ................... 428
Charging and reinstalling battery .. 428
Reconnecting the battery ............. 429
Jump starting...................................... 430
Towing the vehicle.............................. 432
Towing the vehicle ........................ 432
Installing towing eye bolt .............. 434
Fuses.................................................. 436
Aids for changing fuses ................ 436
Mainfuse box in passenger
compartment ................................ 437
Fuse box in engine compartment . 437
Fuse box in trunk .......................... 438
71 Safety and Security
Occupant safety
Roll bars
The roll bars are integrated into the rear
head restraints.
The roll bars raise automatically in an acci-
dent or in a critical driving situation.You can manually lower the roll bars again
when the soft top is open (
page 402).
With the soft top closed, contact an autho-
rized Mercedes-Benz Center to have the
roll bars lowered. Do not attempt to lower
the roll bars manually with the soft top
closed. Lowering the roll bars manually
with the soft top closed may impair the
function of the roll bars.
Warning!
G
Make sure nothing is blocking the roll bars’
path of motion. Otherwise someone could
be injured when the roll bars are raised. The
head restraints should therefore always be
in the raised position when the rear seat is
occupied (
page 115).
iWhen the roll bars are raised automati-
cally, you will hear a ratcheting sound
and the rear head restraints will also
rise.
iYou cannot lower the rear head
restraints with the rear head restraint
lowering switch (
page 115) when the
roll bars are in the raised position.
Also, you cannot operate the soft top
using the soft top switch when the roll
bars are in the raised position.
If the soft top is open, you can man-
ually lower the roll bars
(page 402).
If the soft top is closed, contact an
authorized Mercedes-Benz Center
to have the roll bars lowered.
Warning!
G
If the yellow roll bar warning lamp in
the clock does not go out after starting the
engine, or if it comes on while driving, then
the roll bar system is not operating properly
and may not activate in an accident. In this
case, raise the roll bars manually before
continuing to drive (
page 401).
For safety reasons, drive only with the roll
bars raised until the malfunction is repaired.
Have your vehicle checked at an authorized
Mercedes-Benz Center.
115 Controls in detailSeats
Raising rear head restraints
1Rear seat head restraint
Pull head restraint1 to its highest
position.Lowering rear head restraints
1Rear head restraint lowering switch
Switch on the ignition (
page 34).
Push the rear head restraints lowering
switch1.
The rear head restraints are lowered.
iThe rear head restraints cannot be low-
ered using the switch1 when the roll
bars have been released. The roll bars
need to be lowered before the rear
head restraints can be operated again
using switch1.
If the roll bars have released and
the soft top is closed, contact an
authorized Mercedes-Benz Center
to have the roll bars lowered. Do
not attempt to lower the roll bars
manually with the soft top closed.
Lowering the roll bars manually
with the soft top closed may impair
the function of the roll bars.
If the roll bars have released and
the soft top is open, you can lower
the roll bars manually (
page 402)
or contact an authorized
Mercedes-Benz Center to have the
roll bars lowered.
244 Controls in detailSoft topOpening and closing the soft top
For safety reasons, the soft top can only be
opened and closed when the vehicle is
standing still.Warning!
G
Before operating the switch for the soft top,
make sure no persons can be injured by the
moving parts (roll bars, soft top frame, and
soft top compartment cover).
Hands must never be placed near the roll
bar, soft top frame, upper windshield area,
shelf behind roll bar, or soft top storage
compartment while the soft top is being
raised or lowered. Serious personal injury
may occur.
If potential danger exists, release the soft
top switch. This immediately interrupts the
raising or lowering procedure. You then can
operate the soft top switch to raise or lower
the soft top away from the danger zone.
Warning!
G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO
*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended 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 soft top and the rear shelf.
!When opening and closing the soft top,
make sure:
there is sufficient clearance for the
soft top to move up
the ski sack roller blind is closed
the luggage cover is engaged in
place
the trunk is only loaded to the
height of the luggage cover
the luggage/cargo does not push
the closed luggage cover up
the trunk lid is closed
nothing is placed on the soft top
compartment cover
the outside temperature is above
+5°F (-15°C)
Otherwise the soft top and other parts
of the vehicle could be damaged.
245 Controls in detail
Soft top
Luggage cover
The luggage cover is located in the trunk.
1Luggage cover
Open the trunk
Latch luggage cover
Pull luggage cover1 out in direction
of arrow until it engages in place.Folding back luggage cover
Press luggage cover1 in direction of
rear seat.!To prevent damage to the soft top 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 place anything on the shelf
behind the roll bars
do not place anything on the soft
top compartment cover
!Never place anything behind the side
nets when the luggage cover has been
folded back or the ski sack roller blind
is open. You could forget about objects
placed there, which could result in
damage when operating the soft top.
247 Controls in detail
Soft top
Opening the soft top
1Soft top opening
Before pulling on the soft top switch, you
must make sure:
the parking brake is engaged
(page 49)
the luggage cover is latched, see
“Latch luggage cover” (
page 245)
the ski sack roller blind is closed, see
“Closing ski sack roller blind”
(page 246)
the trunk lid is closed
the ignition is switched on (
page 36)
Pull up on the soft top switch as indi-
cated by the arrow1 until the soft top
is completely lowered into its trunk
storage compartment.
During the opening procedure the mul-
tifunction display shows the message Top in operation
.
If the opening procedure is finished,
the multifunction display will briefly
show the message Top open
.
If you continuously pull on the soft top
switch, the windows will close.
However, the windows can also be
closed/opened later on, for more informa-
tion see “Opening and closing the windows
with the soft top switch” (
page 241), or
see “Opening and closing the windows”
(
page 239).
iThe soft top cannot be opened using
the soft top switch when the roll bars
have been released. The roll bars need
to be lowered before the soft top can
be operated again using the soft top
switch. If the roll bars have released
and the soft top is closed, contact an
authorized Mercedes-Benz Center to
have the roll bars lowered. Do not at-
tempt to lower the roll bars manually
with the soft top closed. Lowering the
roll bars manually with the soft top
closed may impair the function of the
roll bars (
page 401).
If the roll bars have released and the
soft top is open, you can lower the roll
bars manually (
page 402) or contact
an authorized Mercedes-Benz Center
to have the roll bars lowered.
248 Controls in detailSoft top
Closing the soft top
1Soft top closing
Before pressing the soft top switch, you
must make sure:
the parking brake is engaged
(page 49)
the trunk lid is closed
the ignition is switched on (
page 36)
iFor safety reasons, the soft top cannot
be opened while driving.
Make sure the soft top is dry before you
open it. Otherwise water may enter the
trunk interior.!To prevent mildew, the soft top must be
dry before lowering it into the storage
compartment.
Do not lower a frozen soft top until
thawed and dry. Lowering a frozen soft
top may result in damage not covered
by the Mercedes-Benz Limited
Warranty.
Warning!
G
Do not place anything on the soft top com-
partment cover.
The soft top compartment cover must never
be used by any persons as a seat bench.
Raising of the roll bars could result in seri-
ous personal injury.