Page 424 of 481

423 Practical hints
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.
Reconnecting the battery
Turn off all electrical consumers.
Connect the positive lead and fasten its
cover.
Connect the negative lead.
Reinstall the water tray.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.
Warning!
G
Never charge a battery while still installed in
the vehicle unless the accessory battery
charge unit approved by Mercedes-Benz is
being used. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
An accessory battery charge unit specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available, permitting the charging of the bat-
tery in its installed position. Contact an
authorized Mercedes-Benz Center for infor-
mation and availability. Charge battery in
accordance with the separate instructions
for the accessory battery charger.
!The battery, its filler caps and the vent
tube must always be securely installed
when the vehicle is in operation.!Never invert the terminal connections!
iThe following procedures must be car-
ried out following any interruption of
battery power (e.g. due to reconnec-
tion):
Set the clock (
page 139).
Synchronize the power windows
(page 251).
Page 431 of 481

430 Practical hintsFusesFuses are designed to protect the electri-
cal circuits in your vehicle from a short cir-
cuit. If a fuse is blown, the component(s)
and systems secured by that fuse will stop
working.
The following aids are available to help you
replace fuses:
Fuse chart
Spare fuses
Fuse extractor
The electrical fuses are located in different
fuse boxes:
Main fuse box in passenger compart-
ment (
page 431).
Fuse box in engine compartment
(page 432).
Aids for replacing fuses
Fuse chart
The fuse chart is located in the main fuse
box in the passenger compartment
(page 431). The amperages of the fuses
are also given there.
Spare fuses
Spare fuses are located in the vehicle tool
kit in the spare wheel well (
page 388).
Fuse extractor
The fuse extractor is located in the vehicle
tool kit in the spare wheel well
(
page 388).
Warning!
G
Only use fuses approved by Mercedes-Benz
with the specified amperage for the system
in question. Using other fuses may cause an
overload and leading to a fire, and/or cause
damage to electrical components and/or
systems.
!Never attempt to repair or bridge a
blown fuse. Have the cause determined
and remedied by an authorized
Mercedes-Benz Center.!Keep the fuse boxes free by contamina-
tion and wetness. Otherwise, electrical
parts or systems could be damaged.
Page 471 of 481

470 IndexH
Hard plastic trim items, cleaning 359
Hazard warning flasher 117
Head restraint height (Seats) 41
Headlamps
Bi-Xenon* 401, 457
Cleaning system* 173, 315, 456
Night security illumination (Control
system) 145
Switching off 60
Switching on 55
Headliner, cleaning 360
Head-thorax air bag 71, 459
Heating
Seats* 104
Steering wheel* 288
High beam
Flasher 115
Headlamps 55, 115
Headlamps, bulbs 401
High mounted brake lamp 401
High-performance brake system
(SLK 55 AMG) 295
Hood 307
Horn 23
Hydroplaning 297I
Identification labels see Labels
Ignition (Position in starter switch) 36
Immobilizer see Anti-theft systems
Infant and child restraint systems 75
Instrument cluster 25, 120, 459
Clock 122
Lamps, indicator and warning 362
Overview 24
Instruments and controls see Cockpit
Interior rear view mirror see Mirrors
Intermittent/interval wiping see Wind-
shield wipers
J
Jack (Vehicle tool kit) 388
Lifting vehicle 413
Lowering vehicle 419
Jump starting 424K
Key 209
Kickdown (Automatic
transmission*) 162, 459
Kilopascal 345
Kneebag see Air bags
Page 472 of 481

471 Index
L
Labels 436
Lamp in center console 367
Lamps in instrument cluster 362
Lamps, indicator and warning
ABS 362
Battery (SmartKey) 95
Brakes 363
CHECK ENGINE 364
ESP
®
84, 86, 365
Fuel reserve 365, 366
Passenger front air bag off 367
Seat belts 366
SRS 64, 65, 366
Language in multifunction display (Control
system) 137
Layout of poly-V-belt drive 437
License plate lamps 401
Light alloy wheels
Cleaning 358
Technical data 441, 442
Lighter see Cigarette lighterLighting 110
Combination switch 114
Corner-illuminating front fog
lamps* 115
Daytime running lamp mode 112
Door entry lamps 119
Exterior lamp switch 110
Exterior lamps, cleaning 357
Fog lamps 113
Footwell lighting* 118
Hazard warning flasher 117
Headlamp mode,
automatic/manual 111
High beam 115
High beam flasher 115
Individual settings (Control
system) 143
Instrument cluster illumination 120
Interior lighting 117
Low beam headlamps 110
Night security illumination (Control
system) 145
Reading lamps 119
Standing lamps 110
Trunk 118Limp Home Mode (Automatic
transmission*) 172
Line of fall 460
Loading 265, 320, 344
Loading the vehicle 320
Locator lighting (Control system) 144
Locking
And parking 59
Centrally (Control system) 147
Centrally from inside 102
Locking knob (Doors) 97, 460
Locking the vehicle 62
Long trip, checking before 305
Loss of
Service and Warranty Booklet 435
SmartKey or mechanical key 97
Low beam headlamps 110, 401
Lubricants, technical data 449
Page 474 of 481

473 Index
N
NAV* menu 132
Navigation system see NAV*
Neck-level heating see AIRSCARF* (Seats)
Night security illumination (Control
system) 145
Normal occupant weight 345
O
Occupant distribution 345
Occupant safety 64
Children 66, 75
Infant and child restraint systems 72,
75
Seat belts 47, 68, 71
Oil see Engine oil
One-touch gearshifting* 164
Operating safety 16, 203
Operating vehicle outside the USA and
Canada 13
Operator’s Manual 10
Ornamental moldings see Vehicle care
Outside temperature indicator 121, 129
Outside temperature/speed 138
Overhead control panel 30
Overspeed range 121, 460P
Paintwork see Vehicle care
Panic alarm 80
Parcel net (Storage compartment) 267
Parking 296
And locking 59
Parking aid see Parking position*
Parking brake 52, 59
Parking lamps 110, 401
Parking position* 108
Activation (Control system) 148
Exterior rear view mirrors 175
Parts service 434
Passenger air bag see Air bags
Passenger compartment 301
Passenger front air bag off indicator
lamp 367
Passenger safety see Occupant safety
Phone book see Telephone*
Plastic parts, cleaning 359
Poly-V-belt drive 437, 460
Potential problems associated with under-
inflated and overinflated tires 332
Power outlet 271
Power seat* see Seats
Power train 461Power washer see Vehicle care
Power windows 246
Operating rear side windows 248
Operating with retractable hardtop
switch 248
Summer opening/convenience
closing* 249
Synchronizing 251
Practical hints
Fuses 430
Lamps in instrument cluster 362
Spare wheel bolts 392
Towing vehicle 426
Vehicle jack 389
What to do if... 362
Premium unleaded gasoline 452
Problems
While driving 58
With vehicle 17
Product information 9
Production options weight 345
Program mode selector switch* 461
Automatic transmission* 163
PSI 345