Page 386 of 464

386 Practical hintsBatteryDisconnecting the battery
1Negative terminal
2Positive terminal cover
Depress parking brake firmly or move
gear selector lever to positionP.
Turn off all electrical consumers.
Remove SmartKey from starter switch.
Vehicles with KEYLESS-GO*:
Press the start / stop button until
the engine shuts off.
Open the driver’s door.
Open the hood (
page 287).
Remove the filter box.
Disconnect the battery negative lead.
Remove cover2 from the positive ter-
minal.
Disconnect the battery positive lead.
Removing the battery
Remove the screw securing the bat-
tery.
Remove the battery support and brack-
et.
Take out the battery.
Charging and reinstalling battery
Charge battery in accordance with the
instructions of the battery charger
manufacturer.
Reinstall the charged battery. Follow
the previously described steps in re-
verse order.
Warning!
G
With a disconnected battery
you will no longer be able to turn the
SmartKey in the starter switch and
pressing the KEYLESS-GO* start/stop
button on the gear selector lever will
have no effect
the gear selector lever will remain
locked in position
P
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.
Page 392 of 464

392 Practical hintsTowing the vehicle
Installing towing eye bolt
Towing eye bolt CLK 320/CLK 500
1Cover on right side of front bumper2Cover on right side of rear bumper
To remove cover:
Press mark on cover in direction of ar-
row.
Lift cover off to reveal threaded hole for
towing eye bolt.
The towing eye bolt is supplied with the
tool kit (located in the compartment under-
neath the trunk floor).
Screw towing eye bolt to its stop and
tighten with lug wrench.
To reinstall cover:
Fit cover and snap into place.
!When towing the vehicle with all wheels
on the ground, please note the follow-
ing:
With the automatic central locking acti-
vated and the SmartKey in starter
switch position2, or KEYLESS-GO*
start/stop button in position2, the ve-
hicle doors lock if the left front wheel
as well as the right rear wheel are turn-
ing at vehicle speeds of approx. 9 mph
(15 km / h) or more.
Switch off the tow-away alarm
(page 84).
To prevent the vehicle door locks from
locking, deactivate the automatic cen-
tral locking (
page 149).
Towing of the vehicle should only be
done using the properly installed tow-
ing eye bolt. Never attach tow cable,
tow rope or tow rod to the vehicle chas-
sis, frame or suspension parts.
iThe gear selector lever will remain
locked in positionP and the SmartKey
will not turn in the starter switch if the
battery is disconnected or discharged.
See notes on the battery (
page 385)
or on jump starting (
page 388).
Manually unlocking gear selector lever
(
page 352)
Page 450 of 464

450 IndexSmartKey 88
Battery check lamp 89, 94
Changing the batteries 350
Checking the batteries 90, 95
Closing soft top 223
Factory setting 89
Global locking 89
Global unlocking 89
Locking and unlocking 88
Loss of 91
Message in display 334
Opening and closing
windows with 213
Opening soft top 222
Positions in starter switch 31
Remote controls 88, 92
Restoring to factory setting 89, 94
Selective setting 89, 94
Starting the engine 44
Turning off the engine 54
Unlocking with 30SmartKey with KEYLESS-GO*
Checking the batteries 90, 95
Global locking and unlocking 94
Locking the vehicle 95
Loss of 97
Message in display 334
Messages in display 334
Remote controls 91
Restoring to factory setting 89, 94
Turning off the engine 55
Unlocking with 32
Snow chains 301
Soft keys
Audio system 186Soft top 215, 424
Cleaning 306
Closing (SmartKey) 223
Closing (switch) 219
Closing with KEYLESS-GO* 96
Emergency operations 355
Emergency operations (with
add. locking mechanism) 364
Emergency operations (without
add. locking mechanism) 357
Locking after raising/lowering 220
Luggage cover 216
Manual operations 355
Manual operations (with
add. locking mechanism) 364
Manual operations (without
add. locking mechanism) 357
Message in display 340
Opening (SmartKey) 222
Opening (switch) 218
Opening and closing 215
Opening and closing
windows with 212
Unlocked status when stopped 221
Unlocked status while driving 221
Wind screen 223
Page 451 of 464

451 Index
Soft top switch 218, 219
Sound system 183
Spare fuses 396
Spare parts service 398
Speed
Setting current 227
Setting last stored speed
("Resume" function)
in Distronic* 235
Speed settings
Cruise control 228
Distronic* 234, 235
To last stored speed
("Resume" function)
in Cruise control 228
Speed shift 424
Speedometer 23
Displaying gear range 159
Distronic* displays 231
Settings units 142
Speedometer display mode
Selecting 142
Speedshift (CLK 55 AMG) 161SRS 66, 424
Indicator lamp 318
Standard driving
Transmission program
mode S (Sport) 163, 164
Standing lamps 119
Replacing bulbs 373, 375, 377
Standing water
Driving instructions 280
Starter switch 21, 31
Positions 31
Starting difficulties 45
Starting position 31
Starting the engine 43
Station (radio)
Search 135
Station selection
Setting 149
Steering column
In/out adjustment 38
Up/down adjustment 38
Steering gear oil
Message in display 341Steering wheel 37
Adjusting 37
Buttons 24
Cleaning 309
Height adjustment 38
Steering wheel gearshift
control (CLK 55 AMG) 161
Activating 164
Deactivating 165
Downshifting 162
Upshifting 162
Stolen vehicle
Tracking services 265
Stopping
Windows 212
Storage bags 252
Storage compartments
Glove box 250
Storage spaces
Cup holder 251
Storing
Minispare wheel 346
Storing (Memory function)
Positions into memory 117