2007 MERCEDES-BENZ SL550 stop start

393 Practical hints
Locking/unlocking in an emergency
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey, lock it with the mechanical key
as follows:
Close the passenger door and the
trunk.

Press the central locking switch in the
center console (
page 119).

Check whether the locking knob on the
passenger door has moved down.

If necessary push it down manually.

Remove the mechanical key from of
the SmartKey (
page 391).

Check whether the trunk is locked.

If necessary, lock the trunk with the
mechanical key (
page 117).
Except for the driver’s door, the vehicle
should now be locked.1Locking
2Mechanical key

Insert mechanical key 2 (
page 391)
into the driver’s door lock until it stops.

Turn mechanical key 2 clockwise to
position 1.
The driver’s door is locked.
i
Unlocking the glove box with the mechanical
key will trigger the anti-theft alarm system. To
cancel the alarm, do one of the following:


Press button Œ or ‹ on the
SmartKey.


Insert the SmartKey in the starter switch.


Press the KEYLESS-GO* start/stop button
(page 40).


Grasp an outside door handle (vehicles with
KEYLESS-GO* only).
i
This procedure does not arm the anti-theft
alarm system, nor does it lock the fuel filler flap
and the storage compartments.
The storage compartments can be locked
separately (
page 235).

411 Practical hints
Flat tire

Turn the SmartKey in the starter switch
to position1.
or

Press the KEYLESS-GO* start/stop
button on the gear selector lever once
without depressing the brake pedal.

PressI on the electric air pump
switch2.
The electric air pump should now
switch on and inflate the tire.

Inflate the spare tire:

SL 550 to 36 psi (2.5 bar)


SL 600, SL 55 AMG, SL 55 AMG
(Performance Package*), and
SL 65 AMG to 51 psi (3.5 bar)
This takes about 5 minutes.
Air hose4 and union nut5 can be-
come hot during inflation. Exercise
proper caution to avoid burning your-
self when using the equipment.

Press0 on the electric air pump
switch2.

Turn the SmartKey in the starter switch
to position0.
or

Press KEYLESS-GO* start/stop button
on the gear selector lever twice without
depressing the brake pedal.
The electric air pump should now be
switched off.

If the spare tire inflation pressure is
above the recommended tire inflation
pressure for the respective collapsible
tire (
page 440), release excess spare
tire inflation pressure using the vent
screw.

Detach the electric air pump.

Stow the electrical plug and the air
hose behind the flap and place the air
pump back in the trunk.
!
Compare the recommended tire inflation
pressure for your vehicle with the tire inflation
pressure on the yellow label located on the spare
wheel rim.
If the tire inflation pressure on the yellow label
on the spare wheel rim differs from the values
given in this Operator’s Manual, inflate the tire to
the recommended tire inflation pressure given
on the yellow label on the spare wheel rim.
!
Do not operate the electric air pump longer
than 8 minutes without interruption. Otherwise it
may overheat.
You may operate the air pump again after it has
cooled off.
Warning!
G
Follow recommend inflation pressures.
Do not overinflate tires. Overinflating tires
can result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes,
etc.
Do not underinflate tires. Underinflated tires
wear unevenly, adversely affect handling
and fuel economy, and are more likely to fail
from being overheated.


415 Practical hints
Batteries
!
The factory-equipped VRLA battery is
leak-proofed. Only use a battery as replacement
that has the same security features and is of
identical size, voltage, and capacity as the
factory-equipped battery.
The battery, the battery ventilation and the later-
al plug must always be securely installed when
the vehicle is in operation.
Warning!
G
Failure to follow these instructions can re-
sult in severe injury or death.
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 terminal
clamps while the engine is running or the
SmartKey is in the starter switch. Otherwise the
alternator and other electronic components
could be severely damaged.
Have the starter battery checked regularly by an
authorized Mercedes-Benz Center.
Refer to Maintenance Booklet for maintenance
intervals or contact an authorized
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 batteries only to avoid the
risk of acid burns in the event of an acci-
dent.
Warning!
G
The brake system requires electrical power
to operate.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. The same applies if
battery is disconnected. To brake, the driver
must then apply significantly greater brake
pedal pressure and depress the pedal much
further to obtain the expected braking ef-
fect. If necessary, apply full pressure to the
brake pedal. Brakes are only applied to the
front wheels. Stopping distance is in-
creased! Adjust your driving style according-
ly. For more information, see
“Electro-hydraulic brake system”
(page 92).

416 Practical hintsBatteries
Disconnecting the batteries
Apply the parking brake (
page 61).

Make sure the gear selector lever is set
to position P (
page 168).

Close the retractable hardtop
(page 199).

Turn off all electrical consumers.

Turn off the engine (
page 62).

Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*: Open
the driver’s door.

Open the trunk.

Read and observe safety instructions
and precautions (
page 281).

Open the luggage cover in the trunk
(page 206).

Remove the trunk floor.
The battery for electrical consumers is
located in the right hand area of the
trunk (
page 388).

Use the 10 mm open-end wrench from
the vehicle tool kit to disconnect the
negative lead from negative
terminal5 of the consumer battery
(page 414).
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 positionP
!
Always disconnect the batteries in the order
described below, even if you only want to charge
the starter battery, for example. Otherwise the
vehicle’s electronics can be damaged.

422 Practical hintsTowing the vehicleWarning!
G
The brake system requires electrical power
to operate.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. To brake, the driver
must then apply significantly greater brake
pedal pressure and depress the pedal much
further to obtain the expected braking ef-
fect. If necessary, apply full pressure to the
brake pedal. Brakes are only applied to the
front wheels. Stopping distance is
increased! Adapt your driving style
accordingly. For more information, see
“Electro-hydraulic brake system”
(page 92).
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle. Adapt your driving accordingly.
!
When towing the vehicle with all wheels on
the ground, please note the following:
With the automatic central locking activated and
the SmartKey in starter switch position2, or
KEYLESS-GO* start/stop button in position2,
the vehicle doors lock if the left front wheel as
well as the right rear wheel are turning at vehicle
speeds of approx. 9 mph (15 km / h) or more.
To prevent the vehicle door locks from locking,
deactivate the automatic central locking
(
page 119).
Towing of the vehicle should only be done using
the properly installed towing eye bolt. Never
attach tow cable, tow rope or tow rod to the
vehicle chassis, frame or suspension parts.
i
To signal turns while being towed with the
hazard warning flasher in use, turn SmartKey in
starter switch to position2 and activate the
combination switch for the left or right turn
signal in the usual manner – only the selected
turn signal will operate.
Upon canceling the turn signal, the hazard warn-
ing flasher will operate again.
i
If the battery is disconnected or discharged


the SmartKey will not turn in the starter
switch


the gear selector lever will remain locked in
positionP.
For more information, see “Batteries”
(
page 414) and “Jump starting” (
page 419).

424 Practical hintsFusesThe electrical fuses in your vehicle serve to
switch off malfunctioning power circuits.
If a fuse is blown, the components and sys-
tems secured by that fuse will stop operat-
ing.If a newly inserted fuse blows again, have
the cause determined and rectified by an
authorized Mercedes-Benz Center.
The following aids are available to help you
replace fuses. They are located in the trunk
with the vehicle tool kit (
page 388).


Fuse chart
The fuse chart explains the fuse alloca-
tion and fuse amperages.


Spare fuses


Fuse extractor
The electrical fuses are located in different
fuse boxes:


on the driver’s side of the engine com-
partment (
page 425)


on the passenger side of the engine
compartment (
page 425)


under passenger-side rear storage
compartment (
page 426)


in the trunk (
page 426)Before replacing fuses:

Apply the parking brake (
page 61).

Make sure the gear selector lever is set
to position P (
page 168).

Turn off all electrical consumers.

Turn off the engine (
page 62).

Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*: Open
the driver’s door.
Warning!
G
Only use fuses approved by Mercedes-Benz
with the specified amperage for the system
in question and do not attempt to repair or
bridge a blown fuse. Using other than ap-
proved fuses or using repaired or bridged
fuses may cause an overload leading to a
fire, and/or cause damage to electrical
components and/or systems. Have the
cause determined and remedied by an
authorized Mercedes-Benz Centeri
A blown fuse must be replaced by an appro-
piate spare fuse (recognizable by its color or the
fuse rating given on the fuse) of the amperage
recommended in the fuse chart.
Any Mercedes-Benz Center will be glad to advise
you on this subject.

460 IndexK
Key, Mechanical 391
Valet locking 117
Key, SmartKey
Battery check lamp 102
Factory setting 103
Locking/unlocking 38, 63, 102
Messages in the multifunction
display 378
Opening retractable hardtop 201
Remote control 102
Replacing batteries 395
Selective setting 104
Starter switch positions 40
Turning off the engine 62
Unlocking, Trunk lid 111
Key, SmartKey with KEYLESS-GO* 105
Battery check lamp 106
Closing, Trunk 116
Factory setting 108
Locking/unlocking 39, 63, 105
Messages in the multifunction
display 378
Opening retractable hardtop 201
Remote control 105
Replacing battery 395Selective setting 109
Starter switch positions 40
Turning off the engine 62
Unlocking, Trunk lid 111
KEYLESS-GO*
Closing windows 198
Important notes 107
Locking/unlocking 39, 63, 105
Messages in the multifunction
display 378
Start/stop button 31, 40, 53
Starter switch positions 40
Starting the engine 53
Turning off the engine 62
Unlocking, Trunk lid 111
Kickdown 171
Kilopascal 313
Knee bag 72
L
Labels, identification 430
Lamp bulbs, exterior 397
Lamps, exterior
Delayed switch-off 160
Exterior lamp switch 25, 55
Front 398
Light sensor 380Replacing bulbs for rear 398, 402
Switching off 128
Switching on 128
Lamps, indicator and warning
ABS 29, 334
ABS/ESP
®
332
Brakes 335
CHECK ENGINE 336, 337
Coolant 337
DTR* 216
Electro-hydraulic brake system 92
Engine diagnostics 336, 337
Engine malfunction 29
ESP
®
89
Front passenger front
air bag off 72, 76, 345
Fuel reserve 339
Seat belts 341
SRS 67, 342
Turn signals 27
Language
Multifunction display 156
Leather upholstery
Cleaning 329
License plate lamps 159, 398, 402
Light alloy wheels, cleaning 328

465 Index
Seating capacity 287
Seats
Adjusting height 43
Adjusting lumbar support 122
Adjusting shoulder support 122
Heating 123
Massage function 122
Moving 121
Self-test
OCS 76
Service
Basic service (Service A) 319
Batteries 414
Extended service (Service B) 319
Types 319
Service life (tires) 284
Service System see Maintenance
Settings
Clock 157
Convenience functions 162
Cruise control 212
Daytime running lamp mode 159
Interior lighting delayed
switch-off 161
Lamps and lighting
(control system) 159Language, multifunction display 157
Locator lighting 160
Miles/kilometers in
speedometer 156
Night security illumination 160
Resetting all (control system) 153
Selective (SmartKey with
KEYLESS-GO*) 109
Selective (SmartKey) 104
Speedometer display mode 156
Time 157
Units in speedometer 156
Shifting
Gear selector lever 168
Gear selector lever positions 170
Into optimal gear range (Automatic
transmission) 175
Shoulder support
Seat adjustment 122
Side marker lamps 398
Cleaning lenses 325
Side windows
Automatic closing 198
Automatic opening 197
Closing 196, 197
Closing fully 198Closing with KEYLESS-GO* 198
Express-close 198
Express-open 197
Opening 196, 197
Opening fully 197
Stopping 198
Synchronizing power windows 198
Sidewall 313
SmartKey 102
Batteries 395
Checking the batteries 105
Closing retractable hardtop 201
Global locking 103, 104
Global unlocking 103
Loss of 105
Positions in starter switch 40
Restoring factory settings 104, 109
Selective setting 104
Starter switch positions 40
Starting the engine 52
Turning off the engine 62
SmartKey with KEYLESS-GO*
Checking the batteries 110
Global locking 108, 109
Global unlocking 108
Locking 110