2003 MERCEDES-BENZ SLK32AMG battery

246 Practical hintsBatteryDisconnecting the battery
Turn off all electrical consumers.

Open the hood (
page 171).

Disconnect the battery negative
lead3.

Remove the cover2 from the positive
terminal.

Disconnect the battery positive lead.
Removing the battery
Remove the screw on the swivel bar.

Remove the swivel bar. 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.
Reconnecting the battery
Turn off all electrical consumers.

Connect the positive lead and fasten its
cover2.

Connect the negative lead3.
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. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.!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 reconnec-
tion):

Set the clock (
page 90).


Resynchronize the ESP
(page 195).


Re-enter the radio code (see radio
operating instructions).


Resynchronize side windows
(page 128).

247 Practical hints
Jump starting
Jump starting
If the battery is discharged, the engine can
be started with jumper cables and the bat-
tery of another vehicle. Observe the follow-
ing:

Jump starting should only be performed
when the engine and catalytic convert-
er are cold.


Do not start the engine if the battery is
frozen. Let the battery thaw out first.


Only jump start from batteries with the
same voltage rating (12V). Jump start-
ing with a more powerful battery could
damage the vehicle‘s electrical system,
which will not be covered by the Mer-
cedes-Benz Limited Warranty.


Use only jumper cables with sufficient
cross-section and insulated terminal
clamps.


Always make sure that the jumper ca-
bles are not on or near pulleys, fans, or
other parts that move when an engine
is started or running.
Warning!
G
Failure to follow these directions will cause
damage to the electronic components, and
can lead to a battery explosion and severe
injury or death.
Never lean over batteries while connecting
or jump starting, 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 very explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
Read all instructions before proceeding.
!Jump starting may only be performed
on the battery installed in the engine
compartment.
Avoid repeated and lengthy starting at-
tempts.
Do not attempt to start the engine us-
ing a battery quick charge unit.
If engine does not run after several un-
successful starting attempts, have it
checked at the nearest authorized
Mercedes-Benz Center.
Excessive unburned fuel generated by
repeated failed starting attempts may
damage the catalytic converter and
may present a fire risk.
Make sure the jumper cables do not
have loose or missing insulation.
Make sure the cable clamps do not
touch any other metal part while the
other end is still attached to a battery.

248 Practical hintsJump startingThe battery is located in the engine com-
partment on the right hand side.
Make sure that the two vehicles do not
touch.

Turn off all electrical consumers, ex-
cept hazard warning flashers or work
lights.

Apply parking brake.

Shift selector lever to positionP (man-
ual transmission to Neutral).1Positive terminal of charged battery
2Positive terminal of discharged battery
3Negative terminal of discharged
battery
4Negative terminal of charged battery

Connect positive terminals1 and2 of
the batteries with the jumper cables.
Clamp cable to charged battery1 first.

Start engine of the vehicle with the
charged battery and run at idle speed.

Connect negative terminals3 and4 of
the batteries with the jumper cables.
Clamp cable to charged battery4 first.

Start the engine of the disabled vehi-
cle.
Now you can again turn on the electrical
consumers. Do not turn on the lights under
any circumstances.

Remove the jumper cables first from
negative terminals3 and4 of the bat-
teries and then from positive
terminals1 and2.

Have the battery checked at the near-
est authorized Mercedes-Benz Center.
Warning!
G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries.
iVehicles with automatic transmission:
Do not tow-start vehicle.

251 Practical hints
Towing the vehicle
Towing eye
SLK 230 Kompressor except Sport
Package*, SLK 320 except Sport
Package*
The rear towing eye is located at the right,
below the bumper.
The front towing eye is located on the pas-
senger-side behind the grille in the bumper
panel.
1Grille SLK 320
except Sport Package*
2Grille SLK 230 Kompressor
except Sport Package*Removing grille SLK 320

Hold left and right end of grille1 and
pull out firmly.
Installing grille SLK 320

Position grille1 and press securely.
The grille should audibly snap into
place.
Removing grille SLK 230 Kompressor

Hold grille2, fold it down and pull out
firmly.
Installing grille SLK 230 Kompressor

Position grille2 and press securely.
The grille should audibly snap into
place.
iThe selector lever will remain locked in
positionP and the key will not turn in
the starter switch if the battery is dis-
connected or discharged. See notes on
the battery (
page 245) or on jump
starting (
page 247).
Vehicles with automatic transmission:
Manual unlocking of transmission se-
lector lever (page 214).

266 Technical dataElectrical system
Electrical systemModel
SLK 230 Kompressor
SLK 320
SLK 32 AMG
Generator (alternator)
14 V/90 A
14 V/115 A
14 V/120 A
Starter motor
12 V/1.1 kW
12 V/1.7 kW
12 V/1.7 kW
Battery
12 V/74 Ah
12 V/74 Ah
12 V/74 Ah
Spark plugs
Bosch F 7 KTCR
Bosch F 8 DPER
Beru 14 FGH 8 DPUR X 2
NGK PFR 5-11
NGK IFR 6D1O
Electrode gap
0.039 in (1.0 mm)
0.039 in (1.0 mm)
0.039 in (1.0 mm)
Tightening torque
15 – 22 ft.lb (20 – 30 Nm)
15 – 22 ft.lb (20 – 30 Nm)
15 – 22 ft.lb (20 – 30 Nm)

282 Technical termsRetractable hardtop
Hardtop that can be opened and closed
at the push of a button and stored in
the trunk.
Roll bar
Occupant protection system which
consists of tubular steel sheathed in
plastic.
RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.Shift lock
When the vehicle is parked, this lock
prevents the transmission selector le-
ver from being moved out of positionP
without key turned and brake pedal de-
pressed.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.
Tele Aid System
(T
elematic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.The Tele Aid system is operational pro-
viding that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
TIREFIT
Accessory for emergency and tempo-
rary tire repair. The TIREFIT kit consists
of a container with sealant material, a
filler hose, a valve stem tool, a valve in-
sert, and an air compressor.

287 Index
Battery discharged
Jump starting 247
Battery, vehicle 178, 245
Charging 246
Disconnecting 246
Reconnecting 246
Reinstalling 246
Removing 246
Block heater 184
Bolts
For spare wheel 207
Brake assist system (BAS) 279
Brake fluid 170, 271
Brake lamp bulbs 222
Brake lamp, high mounted 222
Brakes 160
Warning lamp 198
Break-in period 158
Bulbs, replacing 221
Additional turn signals 221
Backup lamps 222
Brake lamps 222
Fog lamps 221
Front lamps 221
High beam 221
High mounted brake lamp 222License plate lamps 222, 226
Low beam 221
Parking lamps 221, 222, 224
Rear fog lamp 222
Rear fog lamps 225
Side marker lamps 221, 225
Standing lamps 221, 222, 224
Tail lamp assemblies 222, 225
Turn signal lamps 221, 222
Xenon* headlamps 223
Button
Audio system 115
C
CAC (Customer Assistance Center) 279
California
Important notice 9
Calling up
Service indicator 186
CAN system 279
Capacities
Fuels, coolants, lubricants, etc. 269
Cargo area see Cargo compartment 77
Cargo compartment
Trunk 77
Casette mode
Playing cassettes 118Catalytic converter 166
CD changer* 120, 209
CD mode 120
Center console 23
AIRBAG OFF indicator lamp 205
Lower part 24
Storage compartment 140
Upper part 23
Central locking
From inside 80
Unlocking from inside 80
Certification label 258
Changing CDs 120
Charging
Vehicle battery 246
CHECK ENGINE malfunction indicator
lamp 199
Checking
Coolant level 170, 176
Oil level 170, 172
Tire inflation pressure 170
Vehicle lighting 170
Checking engine oil level
Via engine oil level indicator 173
Via oil dipstick 173

289 Index
Cruise control lever 136
For cruise control 136
Cup holder 140
Cleaning 191
Customer Assistance Center (CAC) 279
D
Daytime running lamp mode 83
Deactivating
Air conditioning 106
Air recirculation mode 105
Alarm 71
Anti-theft alarm system 71
Climate control 103
Cruise control 137
ESP 70
Hazard warning flasher 85
Headlamps 48
Immobilizer 71
Rear window defroster 105
Residual heat 107
Seat heater* 81
Tow-away alarm 72
Deactivating automatic central
locking 79
Deep water see Standing water 165
DefoggingWindshield 109
Defrosting 108
Difficulties
While driving see Problems while
driving 45
With starting 41
Direction of rotation (tires) 181
Discharged battery
Jump starting 247
Disconnecting
Vehicle battery 246
Display elements
Audio system 112
Displays
Service indicator 185
Door unlock
With Tele Aid 151
Doors
Opening from inside vehicle 78
Opening from outside 75
Downhill driving
Cruise control 137
Downshifting 92, 94
Drink holder see Cup holder 140
Drinking and driving 159
DrivingGeneral instructions 37, 159
In winter 164
Problems 45
Safety systems 66
Through standing water 165
Traveling abroad 165
Driving instructions 159
Driving off 161
Driving safety systems
ABS 66
BAS 68
ESP 68
Driving systems 136
Cruise control 136
Driving safety systems 66
E
Electrical fuses 253
Electrical system
Technical data 266
Electronic Stability Program see ESP 22,
68
Electronic stability program see ESP 280
Emergency call system 145
Requirements 145