2003 MERCEDES-BENZ CLK320 COUPE ECU

330 Practical hintsBattery1Negative terminal
2Cover over positive terminal
Disconnecting the battery
Turn off all electrical consumers.

Open the hood (
page 253).

Remove the filter box.

Disconnect battery negative lead1.

Remove cover 2 from the positive ter-
minal.

Disconnect the battery positive lead.
Removing the batteries
Remove the screw securing the bat-
tery.

Remove the battery support and brack-
et. Take out the battery.
Charging and reinstalling batteries
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

y o u w i l l n o l o n g e r b e a b l e t o t u r n t h e k e y
in the starter switch and pressing the
KEYLESS-GO* start/stop button (if so
equipped) on the selector lever will have
no effect


the selector lever will remain locked in
positionP
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.

331 Practical hints
Battery
Reconnecting the batteries
Turn off all electrical consumers.

Connect the positive lead and fasten its
cover 2.

Connect the negative lead 1.

Reinstall the filter box.Batteries contain materials that can harm
the environment if disposed of improperly.
Large 12-volt storage batteries contain
lead. Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.!NEVER invert the terminal connections.!The battery, its filler caps and the vent
tube must always be securely installed
when the vehicle is in operation.
iThe following procedures must be car-
ried out following any interruption of
battery power (e.g. due to reconnect-
ing):

Set the clock (
page 128) (vehi-
cles with COMAND*: see COMAND
operator’s manual).


Resynchronize the ESP
(page 294).


Resynchronize side windows
(page 189).


Resynchronize sliding/pop-up roof
(page 315).

338 Practical hintsFusesOpening fuse box
5Fuse box cover
6Clamps
Release clamps6.

Remove cover5.
Closing fuse box

Ensure that the sealing rubber is prop-
erly positioned.

Press the cover down and secure with
clamps6.
Auxiliary fuse box in trunk
The auxiliary fuse box is located in the
trunk on the left hand side.
1Trim
2Cover
3Spare extractor
Opening auxiliary fuse box
Pull off trim1.

Remove cover2.Closing auxiliary fuse box

Place cover 2 back on.

Press trim1 back into place.
Spare fuses
Spare fuses are found in the vehicle tool kit
in the cargo area.
Spare extractor
The fuse extractor is located in the cover of
the auxiliary fuse box in the trunk.

379 Index
L
Labels, identification 342
Lamp bulbs, exterior 316
Lamps, exterior
Front 317
Light sensor 296
Messages in display 296–299
Rear 317
Lamps, indicator and warning
ABS 277
Airbag Off 61
Battery (SmartKey) 85
Brakes 279
CHECK ENGINE 280
Coolant 281, 289
DTR* 198
Engine diagnostics 280
ESP 276
Fuel reserve 280
Instrument cluster 276–281
Seat belts 280
Service indicator 266
SRS 57
Turn signals 23Language
Multifunction display 127
Setting 127
LATCH child seat mounts 71
Folding back 71
Layout of poly-V-belt drive 343
Leather upholstery
Cleaning 273
Lever
For cruise control 200
License plate lamps
Messages in display 298
Replacing bulbs 317, 322
Light alloy wheels
Cleaning 272
Technical data 345
Light sensor 296
Lighter see Cigarette lighter 224Lighting 105
Automatic headlamp mode 106
Combination switch 108
Daytime running lamp mode 106
Door entry lamps 110
Exterior lamp switch 105
Front fog lamps 107
High beam flasher 108
High beams 108
Instrument cluster illumination 111
Interior 109
Locator lighting 107
Low beam 105
Manual headlamp mode 106
Night security illumination 107
Parking lamps 105
Rear fog lamp 107
Settings (control system) 129
Limiting the gear range 143
Limp Home Mode 146
Line of fall 363

381 Index
Mirrors
Adjusting 38
Automatic antiglare for rear view mirror
149
Exterior rear view mirror 38
Exterior rear view mirror parking posi-
tion 150
Exterior rear view mirror parking posi-
tions 135
Inside rear view mirror 38
Storing exterior mirror parking position
103
MON 251
MON (Motor Octane Number) 364
Mph or km/h in speedometer 126
Multicontour seat* 100
Multifunction display 114, 364
Selecting language 127
Standard display 118
Multifunction display messages
ABS 284
BAS 285
Battery 303
Brake fluid 287
Brake pads 286
Check engine 280Coolant 290
Coolant level 289
Display 304
Distronic* 292
Doors 292
Engine 280
ESP 293
Fuel reserve tank 296
Hood 296
Key 296
Lamps 296–299
Parking brake 299
Selector lever 292
SmartKey with KEYLESS-GO* 288
Steering gear oil level 300
Tele Aid 301
Telephone* 301
Trunk 301
Washer fluid 301
Multifunction steering wheel 24, 115, 364
Buttons 115N
Navigation system
Operating 121
See separate COMAND* operating in-
structions
Night security illumination 107
O
Occupant safety 56
Airbags 57
Children and airbags 58
Children in the vehicle 66
Fastening the seat belt 40
Infant and child restraint systems 66
LATCH child seat mounts 71
Seat belts 40, 60
Odometer, main 23
Oil
Adding 255
Checking level 254
Consumption 254
Filler neck 255
Viscosity 363
Oil level
Checking 252

385 Index
Resetting
All functions (control system) 124
All functions of a submenu 124
Fuel consumption 137
Service indicator (FSS) 267
Stored speed in Distronic* 202
Trip odometer 112
Residual heat utilization 163, 365
Residual ventilation 163
REST (Residual engine heat utilization) 365
Restraint system see Infant and child re-
straint systems 66, 70
Rims 345
Roadside assistance 12
Tele Aid* 231
Rolling code programming 237
RON 251
RON (Research Octane Number) 365
Roof rack 212
Rotating wheels 263
Rubber parts
Cleaning 273S
Safety
Occupant 56
Safety belts see Seat belts 40
Safety defects
Reporting 18
Safety systems
Driving 74
Saving current speed 194
Searching
Radio station 120
Seat belt force limiter 65
Seat belts 62
Cleaning 273
Fastening 40
Proper use of 42, 64
Safety guidelines 60
Warning lamp 280
Seat cushion depth
Adjusting 100
Seat heater*
Switching off 101
Switching on 101Seats 97
Adjusting 34
Easy entry/exit feature 97
Heater* 101
Multicontour seat* 100
Rapid seat heating* 101
Split rear bench seat 215
Securing cargo
Cargo tie-down rings 218
Selecting
Display 127
Selecting display 128
Selector lever 23
Lock 43
Message in display 292
Position 23, 141
Self-test
BabySmart
TM airbag deactivation sys-
tem 68
Tele Aid* 228