2004 MERCEDES-BENZ CLK320 CABRIOLET key battery

385 Practical hints
Battery
Battery
The battery is located on the right side of
the engine compartment.
Removal of filter box:
Release the three clamps1.

Remove filter box.
Installation of filter box:

Insert filter box properly.

Secure it with the three clamps1.
Warning!
G
Failure to follow these instructions can re-
sult in severe injury or death.
Observe all safety instructions and precau-
tions when handling automotive batteries
(For more information, see “Battery”
(page 294)
Never lean over batteries while connecting,
you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
!Never loosen or detach battery termi-
nal clamps while the engine is running
or the SmartKey is in the starter switch.
Otherwise the alternator and other
electronic components could be se-
verely damaged.
Have the battery checked regularly by
an authorized Mercedes-Benz Center.
Refer to Service Booklet for mainte-
nance intervals or contact your autho-
rized Mercedes-Benz Center for further
information.Warning!
G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.

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.

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)

429 Index
Automatic climate control 172
Adjusting air distribution 176
Air recirculation mode 178
Defrosting 177
Rear window defroster 171
Setting the temperature 175
Automatic headlamp mode 120
Automatic lighting control
Activating 124
Deactivating 125
Automatic locking when driving 107Automatic transmission 157
Accelerator position 163
Comfort (C) program mode 163, 164
Emergency operation
(Limp Home Mode) 166
Fluid level 291
Gear ranges 159
Gear selector lever position 157, 160
Gear shifting malfunctions 166
Kickdown 163
Manual (M) program mode 164
Manual shift program
mode (CLK 55 AMG) 164
One-touch gearshifting 158
Program mode selector switch 163
Program mode selector
switch CLK 55 AMG 164
Speedshift (CLK 55 AMG) 161
Sport (S) program mode 163, 164
Starting the engine 44
Steering wheel gearshift
control (CLK 55 AMG) 161
Transmission fluid 291
Auxiliary fuse box 396B
BabySmart
TM
Airbag deactivation system 71, 419
Compatible child seats 71, 419
Self-test 72
Backup lamps 373, 378
Bulbs 373
BAS 78, 419
Messages in display 322, 323
Batteries, SmartKey
Changing 350
Check lamp 89, 94
Checking 90, 95
Batteries, SmartKey with KEYLESS-GO*
Changing 351
Check lamp 89, 94
Checking 90, 95
Battery discharged
Jump starting 388
Battery, vehicle 294, 385
Charging 386
Disconnecting 386
Messages in display 326
Reconnecting 387
Reinstalling 386
Removing 386

431 Index
Centigrade
Setting temperature units 142
Central locking
Automatic 107
From inside 108
Locking from inside 108
Switch 108
Switching on/off
(control system) 149
Unlocking from inside 108
Central locking switch 108
Changing
Batteries (SmartKey with
KEYLESS-GO*) 351
Batteries (SmartKey) 350
Key setting 149
Changing CDs 199
Charcoal filter 179
Activating 179
Deactivating 180
Charging
Vehicle battery 386
CHECK ENGINE
malfunction indicator lamp 314Checking
Coolant level 292
Oil level 286, 289
Tire inflate pressure 286
Vehicle lighting 286
Child safety 69
Airbags 60
Infant and child
restraint systems 64, 69
LATCH child seat anchors 73
Child safety switch see
Blocking of rear window operation
Child seat anchors see
LATCH child seat anchors
Cigarette lighter 254Cleaning
Cup holder 309
Distronic* system sensor cover 308
Gear selector lever 309
Hard plastic trim items 310
Headlamps 167
Headliner 310
Instrument cluster 309
Leather upholstery 310
Light alloy wheels 309
Nubuck leather upholstery
(CLK 55 AMG) 310
Parktronic* system sensor 308
Plastic and rubber parts 310
Seat belts 310
Soft top 306
Steering wheel 309
Upholstery 310
Windows 309
Windshield 50
Wiper blades 308
Wood trims 310
CLK 55 AMG
Manual shift program mode 164
Clock 23, 144

439 Index
Instrument cluster 22, 126, 421
Cleaning 309
Coolant temperature indicator 127
Illumination 126
Lamps in 312–318
Multifunction display 129
Outside temperature indicator 128
Selecting language 143
Instruments and controls see Cockpit
Interior lighting 124
Activating automatic control 124
Deactivating automatic control 125
Delayed switch-off 148
Manual operation 125
Interior rear view mirror
Adjusting 38
Interior storage spaces 250
Armrest 251
Glove box 250
Parcel net 253
Storage bags 252
J
Jack 343, 345
Jump starting 388K
Key, mechanical 348
Key, SmartKey with KEYLESS-GO*
Changing the batteries 351
Key-dependency memory
Settings 151
KEYLESS-GO* 421
Activating ignition with 33
Closing side windows 96
Closing soft top 96
Closing windows with 214
Factory setting 94
Global locking 94
Global unlocking 94
Important notes 92
Locking the vehicle 95
Messages in display 334
Remote controls 91
Starting the engine 44
Turning off the engine 55
Unlocking with 32
Unlocking, trunk lid 96
Kickdown 163, 421
Kilometers/miles in speedometer 142
Km/h or mph in speedometer 142L
Labels, identification 400
Lamp bulbs, exterior 372
Lamp sensor
Messages in display 336
Lamps, exterior
Front 373
Light sensor 336
Messages in display 335–338
Rear 373
Lamps, indicator and warning
ABS 312
Battery (SmartKey) 89, 94
Brakes 313
Center console 319
CHECK ENGINE 314
Coolant 315, 328
Distance warning 316
Distronic* 231, 237
Engine diagnostics 314
ESP 316, 317
Fuel reserve 317
Instrument cluster 312–318
PASS. AIRBAG OFF 63, 319
Roll bar 317
Seat belts 318

442 IndexMenus 130
AUDIO 134
Control system 422
Distronic* 137, 232
In control system 132, 133
Malfunction memory 138
NAV 137
Settings menu 139
Standard display 134
Submenus 131
TEL* 154
Trip computer 152
Microphone
Hands-free microphone 27
Miles/kilometers in speedometer
Setting 142
Minispare wheel 346
Mounting 380
Removing 346
Storing 346
Technical data 406
Wheel bolts 347Mirrors
Activating exterior rear
view mirror parking position 169
Adjusting 38
Automatic antiglare
for rear view mirror 168
Exterior rear view mirror 39
Exterior rear view
mirror parking positions 151
Interior rear view mirror 38
Storing exterior rear view
mirror parking position 118
MON 285
MON (Motor Octane Number) 422
Mph or km/h in speedometer 142
Multicontour seat* 112
Multifunction display 129, 422
Selecting language 143
Standard display 133Multifunction display messages
ABS 321
BAS 322, 323
Battery 326
Brake fluid 327
Brake pads 327
Check engine 314
Coolant 329
Coolant level 328
Cruise control 323
Display 331
Distronic* 323
Doors 331
Engine 314
Engine oil 332
ESP 324
Fog lamps, front 335
Fuel reserve tank 334
High beam headlamps 335
Hood 334
Key 334
Lamp sensor 336
Lamps 336
License plate lamp 336
Low beam 336
Parking brake 327

446 IndexRear passenger compartment
Adjustable air vents 182
Rear seat head restraints
Lowering with lower switch 111
Raising 111
Rear seats
Rear seat head restraints 111
Rear side-impact airbags 64
Rear view mirror automatic antiglare 168
Rear view mirrors see Mirrors
Rear window
Blocking operation 74
Rear window defroster 171
Activating 171
Deactivating 171
Reconnecting
Vehicle battery 387
Refrigerant
Air conditioning 412
Refueling 284
Regular checks 286Reinstalling
Ashtray (Center console) 254
Ashtray (Rear seat) 254
Reinstalling vehicle battery 386
Remote controls
SmartKey 88, 92
SmartKey with KEYLESS-GO* 91
Remote door unlock
With Tele Aid 264
Remote Vehicle Diagnostics 424
Removing
Ashtray (Center console) 253
Ashtray (Rear seat) 254
Floormates* 255
Minispare wheel 346
Ski sack* 248
Vehicle battery 386
Vehicle tool kit 344
Wheel 382
Wind screen 225
Wiper blades 379Replacing
Backup lamp bulbs 378
Brake lamp bulbs 378
Bulbs 372
Front lamp bulbs 374
Front turn signal bulbs (Halogen) 375
Fuses 396
High beam bulbs (Halogen) 375
High beam bulbs for
high beam flasher (Bi-Xenon*) 376
License plate lamp bulbs 378
Low beam bulbs (Halogen) 375
Parking lamp bulbs 375, 377
Rear fog lamp bulb 378
Rear lamp bulbs 373, 378
Rear turn signal bulbs 378
Side marker lamp bulbs 377
Standing lamp bulbs 375, 377
Wiper blades 379