2008 MERCEDES-BENZ SL55AMG hood open

415 Practical hints
Replacing wiper blades
Replacing wiper blades
Placing wiper arms in vertical position
Wiper blades in vertical position
Vehicles with SmartKey
Turn SmartKey to starter switch
position1 (
page 40).
Turn combination switch to wiper
settingII (
page 58).
With wiper arms in the vertical position,
turn SmartKey in starter switch to
position0.
Remove SmartKey from starter switch.
Warning!G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch
(vehicles with KEYLESS-GO*: Make sure the
vehicle’s on-board electronics have
status0) before replacing a wiper blade.
Otherwise the wiper motor could suddenly
turn on and cause injury.
Warning!G
Wiper blades are components that are sub-
ject to wear and tear. Replace the wiper
blades twice a year, preferably in the spring
and fall. Otherwise the windows will not be
properly wiped. As a result, you may not be
able to observe surrounding traffic condi-
tions and could cause an accident.
!To avoid damage to the hood:

The wiper arms should only be folded
forward when in the vertical position.

Never open the hood when a wiper arm is
folded forward.
!Hold on to the wiper when folding the wiper
arm back. If released, the force of the impact
from the tensioning spring could crack the wind-
shield.
Do not allow the wiper arms to contact the wind-
shield glass without a wiper blade inserted.
For your convenience, we recommend that you
have this work carried out by an authorized
Mercedes-Benz Center.

430 Practical hints
Batteries
Open the hood (page 282).
Use the 10 mm open-end wrench from
the vehicle tool kit to disconnect the
negative lead from negative
terminal2 of the starter battery
(
page 427).
Remove the covers from the positive
terminals 1 and 4 (
page 427).
Disconnect the positive lead from pos-
itive terminal 4 of the consumer bat-
tery (
page 427).
Disconnect the positive lead from pos-
itive terminal 1 of the starter battery
(
page 427).
Removing the batteries
Removing the consumer battery
Remove the screws securing the bat-
tery in the trunk.
Remove the battery support and
bracket.
Pull out the battery ventilation hose
from the battery.
Depending on battery arrangement in
your vehicle model, the ventilation tube
is located either on the left or right side
of the battery.
Take out the battery.
Removing the starter battery
Remove the screws securing the start-
er battery in the engine compartment.
Pull battery ventilation 3
(
page 427) out of the battery.
Lift the retaining bracket.
Remove the battery.
Charging and reinstalling batteries
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
battery 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.


433 Practical hints
Jump starting
The starter battery is located on the right
side of the engine compartment.
Make sure the two vehicles do not
touch.
Turn off all electrical consumers.
Apply the parking brake (page 63).
Make sure the gear selector lever is set
to position P (
page 172).
Open the hood (page 282).
Remove the red cover from positive ter-
minal on both vehicles (
page 427).1Positive terminal of charged battery
2Positive terminal of discharged battery
3Negative terminal of discharged
battery
4Negative terminal of charged battery
Connect positive terminals 1 and 2
of the batteries with the red jumper
cable. Clamp cable to charged battery
first.
Start the engine of the vehicle with the
charged battery and run at idle speed.
Connect negative terminals 3 and 4
of the batteries with the black jumper
cable. Clamp cable to charged battery
first.
Start the engine of the disabled vehi-
cle.
You can now turn on the electrical con-
sumers. Do not switch on the headlamps
under any circumstances.
Remove the jumper cables first from
negative terminals 4 and 3 and then
from positive terminals 2 and 1.
You can now switch on the headlamps.
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
(
page 290).
!Never invert the terminal connections.

438 Practical hints
Fuses
Fuse boxes in engine compartment
Open the hood (page 282).
The fuse boxes are located on the driver’s
and passenger side in front of the bulk-
head (wall separating the engine and
passenger compartment).
Fuse box on driver’s side
1Fuse box cover
2Locking
3Unlocking
Fuse box on passenger side
1Fuse box cover
2Locking
3UnlockingOpening
Move slide to position 3 and lift
cover1.
Closing
Hook cover 1 onto tabs and close it.
Move slide to position 2.
Close the hood after checking or
replacing fuses (
page 283).
!The fuse box cover must be properly
positioned with the slide at the ‹symbol to
prevent moisture or dirt from entering the fuse
box and possibly impairing fuse operation.

474 Index
High-performance brake system
(AMG vehicles only) 270
Hood 282
Messages in the multifunction
display 390
Opening 282
Horn 25
HVAC see Automatic climate control
Hydroplaning 272
I
Identification labels 444
Identification number, Vehicle (VIN) 445
Ignition 40
Immobilizer 98
Indicator lamps see Lamps, indicator and
warning
Infant and child restraint systems see
Children in the vehicle
Inflation pressure see Tire inflation
pressure
Inside door handle 113Instrument cluster 26, 140
Illumination brightness 140
Lamps 342
Language 160
Messages in the multifunction
display 26, 359
Multifunction display 143
Instrument lighting see Instrument cluster,
Illumination brightness
Instrument panel see Instrument cluster
Instruments and controls see Cockpit
Interior lighting 138
Delayed switch-off 165
Interior rear view mirror 49
Antiglare position 185
Auto-dimming 185
J
Jack 401
Jacking up the vehicle 418
Jump starting 432K
Key, Mechanical 403
Valet locking 120
Key, SmartKey
Batteries 407
Battery check lamp 104
Checking the batteries 113
Factory setting 106
Global locking 106, 107
Global unlocking 106, 107
Locking/unlocking 38, 65, 104
Loss of 113
Messages in the multifunction
display 390
Opening, Trunk 115
Opening/closing retractable
hardtop 206
Remote control 104
Replacing batteries 407
Reprogramming 107
Restoring to factory settings 107
Selective setting 107
Starter switch positions 40
Starting the engine 53
Turning off the engine 64
Unlocking, Trunk lid 114