Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehicle’s
handling and stopping ability. Please note that
the TPMS is not a substitute for proper tire
maintenance, and it is the driver’s
responsibility to maintain correct tire
pressure, even if underinflation has not
reached the level to trigger illumination of the
TPMS low tire pressure telltale.
USA only:
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined with
the low tire pressure telltale. When the
system detects a malfunction, the telltale will
flash for approximately 1 minute and thenremain continuously illuminated. This
sequence will continue upon subsequent
vehicle start-ups as long as the malfunction
exists. When the malfunction indicator is
illuminated, the system may not be able to
detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of
reasons, including the installation of
incompatible replacement or alternate tires
or wheels on the vehicle that prevent the
TPMS from functioning properly. Always
check the TPMS malfunction telltale after
replacing one or more tires or wheels on your
vehicle to ensure that the replacement or
alternate tires and wheels allow the TPMS to
continue to function properly.
Lamp in center console
ProblemPossible causes/consequences and M Solutions45
The passenger front air
bag off indicator lamp
illuminates and
remains illuminated
with the weight of a
typical adult or
someone larger than a
small individual on the
passenger seat.The system is malfunctioning.XHave the system checked as soon as possible at an authorized
Mercedes-Benz Center.XRead and observe messages in the multifunction display and
follow corrective steps ( Y page 226).GWarning!
If the 45 indicator lamp illuminates
and remains illuminated with the weight of a
typical adult or someone larger than a small
individual on the passenger seat, do not have
any passenger use the passenger seat until
the system has been repaired.266What to do if …Practical hints
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Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or with KEYLESS-GO, lock it as
follows:
XOpen the driver’s door.XClose the passenger door and the trunk.XPress the central locking switch
(Y page 73).
XCheck to see whether the locking knob on
the passenger door has moved down.
XIf necessary, push it down manually.XExit the vehicle and close the driver’s door.XRemove the mechanical key from the
SmartKey (Y page 267).
XCheck whether the trunk is locked.XIf it is not locked, lock it with the
mechanical key (Y page 77).
Except for the driver’s door, the vehicle
should now be locked.
XInsert mechanical key ; into the driver’s
door lock.
XTurn mechanical key ; clockwise to
position 1.
The driver’s door is locked.
XTurn mechanical key ; back and remove
it from the driver’s door lock.
iThis 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 (Y page 161).
Lowering the load assist manually
If the load assist feature does not fully lower
the retractable hardtop into the trunk
compartment and you are unable to close the
trunk lid, follow the instructions below.
XOpen the trunk (Y page 73).XRemove the trunk floor from the trunk.XHave a second person lift and hold the
retracted hardtop.
XTake the hex-socket wrench from the
vehicle tool kit (Y page 224).
XUsing hex-socket wrench :, carefully turn
locking screw ; approximately one
quarter of a turn counterclockwise.
XHook luggage cover into holders
(Y page 159).
XLet go of the hardtop.
It should gradually lower into the trunk.
XWhen hardtop is completely lowered,
return locking screw ; clockwise to its
original position.
! Do not overtighten the screw.
XReplace the trunk floor.XClose the trunk.XContact an authorized Mercedes-Benz
Center as soon as possible.
Replacing SmartKey batteries
If the batteries in the SmartKey are
discharged, the vehicle can no longer be
Replacing SmartKey batteries269Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 269Z
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.
Attempting to jump start a frozen battery can
result in it exploding, causing personal injury.
Read all instructions before proceeding.
! Do not tow-start the vehicle. You could
otherwise seriously damage the automatic
transmission which is not covered by the
Mercedes-Benz Limited Warranty.
! Jump starting should only be performed
on the starter battery installed in the engine
compartment.
Avoid repeated and lengthy starting
attempts.
Do not attempt to start the engine using a
battery quick-charge unit.
If the engine does not run after several
unsuccessful 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.
If the starter battery is discharged, the engine
can be started with jumper cables and the
fully charged battery of another vehicle or an
equivalent starter pack. Observe the
following:
R Access to the battery is not possible on all
vehicles. If you cannot access the batteryof the other vehicle, provide jump start
power by an external battery or starter
pack.
R Jump starting should only be performed
when the engine and catalytic converter
are cold.
R Do not jump start the engine or charge the
battery if the battery is frozen. Let the
battery thaw out first.
R Only jump start from batteries with the
same voltage rating (12 V). Jump starting
with a more powerful battery could damage
the vehicle’s electrical system, which is not
covered by the Mercedes-Benz Limited
Warranty.
R Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.
R Always make sure the jumper cables are
not on or near pulleys, fans or other parts
that move when an engine is started or
running.
R Should the battery be drained completely,
let the donating power source charge the
vehicle for several minutes before
reattempting the starting process.
Jump starting should only be performed on
the starter battery. The starter battery is
located in the engine compartment on the
passenger side.XMake sure the two vehicles do not touch.XSwitch off all electrical consumers.XEngage the parking brake.XMake sure the automatic transmission is in
park position P.XOpen the hood ( Y page 180).286Jump startingPractical hints
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Vehicle equipment ............................294
Parts service .....................................294
Warranty coverage ...........................294
Identification labels ..........................294
Vehicle specification SL 550
(230.471) ...........................................296
Vehicle specification SL 600
(230.477) ...........................................296
Vehicle specification SL 63 AMG
(230.470) ...........................................297
Vehicle specification SL 65 AMG
(230.479) ...........................................298
Rims and tires ...................................299
Fuels, coolants, lubricants, etc. ......303
293Technical data230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 293
Vehicle specification SL 550
(230.471)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.Engine SL 550Engine, type273Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders8Bore3.86 in (98.00 mm)Stroke3.56 in (90.50 mm)Total piston
displacement333.2 cu in
(5 461 cm 3
)Compression
ratio10.7:1Output acc. to
SAE J 1349 20382 hp/6
000 rpm
(285 kW/6 000 rpm)Maximum torque
acc. to SAE J 1349391 lb-ft/
2 800 - 4 800 rpm
(530 Nm/
2 800 - 4 800 rpm)Maximum engine
speed6 500 rpmFiring order1-5-4-2-6-3-7-8Poly-V-belt2 401 mmElectrical system SL 550Alternator14 V/180 AStarter motor12 V/1.7 kWStarter battery12 V/35 AhElectrical system SL 550Battery for
electrical
consumers12 V/70 AhSpark plugs, typeBosch Y 7 MPP33Spark plugs,
electrode gap0.031 in (0.8 mm)Spark plugs,
tightening torque15 - 18 lb-ft
(20 - 25 Nm)Main dimensions SL 550Overall vehicle
length179.8 in (4 568 mm)185.6 in
(4 713 mm) 21Overall vehicle
width 2281.5 in (2
069 mm)Overall vehicle
height51.0 in (1 295 mm)65.9 in (1 674 mm) 21Wheelbase100.8 in (2
560 mm)Track, front61.4 in (1 559 mm)Track, rear60.5 in (1 537 mm)Turning circle36.2 ft (11.04 m)Weights SL 550Trunk loadmax. 220 lb (100 kg)
Vehicle specification SL 600
(230.477)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.
20 Premium fuel required. Performance may vary with fuel octane rating.
21 When opening/closing hardtop.
22 Exterior rear view mirrors folded out.296Vehicle specification SL 600 (230.477)Technical data
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Engine SL 600Engine, type275Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders12Bore3.23 in (82.00 mm)Stroke3.43 in (87.00 mm)Total piston
displacement336.4 cu in
(5 513 cm 3
)Compression
ratio9.0:1Output acc. to
SAE J 1349 23510 hp/5
000 rpm
(380 kW/5 000 rpm)Maximum torque
acc. to SAE J 1349612 lb-ft/
1 900 - 3 500 rpm
(830 Nm/
1 900 - 3 500 rpm)Maximum engine
speed5 950 rpmFiring order1-12-5-8-3-10-
6-7-2-11-4-9Poly-V-belt2 335 mmElectrical system SL 600Alternator14 V/180 AStarter motor12 V/2.0 kWStarter battery12 V/35 AhBattery for
electrical
consumers12 V/70 AhSpark plugs, typeNGK IFR 6Q-GElectrical system SL 600Spark plugs,
electrode gap0.028 in (0.7 mm)Spark plugs,
tightening torque15 - 22 lb-ft
(20 - 30 Nm)Main dimensions SL 600Overall vehicle
length179.8 in (4 568 mm)185.6 in
(4 713 mm) 24Overall vehicle
width 2581.5 in (2
069 mm)Overall vehicle
height51.0 in (1 295 mm)65.9 in (1 674 mm) 24Wheelbase100.8 in (2
560 mm)Track, front61.4 in (1 559 mm)Track, rear60.5 in (1 537 mm)Turning circle36.2 ft (11.04 m)Weights SL 600Trunk loadmax. 220 lb (100 kg)
Vehicle specification SL 63 AMG
(230.470)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.
23 Premium fuel required. Performance may vary with fuel octane rating.
24 When opening/closing hardtop.
25 Exterior rear view mirrors folded out.Vehicle specification SL 63 AMG (230.470)297Technical data230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 297Z
Engine SL 63 AMGEngine, type156Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders8Bore4.02 in (102.20 mm)Stroke3.72 in (94.60 mm)Total piston
displacement378.8 cu in
(6 208 cm 3
)Compression
ratio11.3:1Output acc. to
SAE J 1349 26518 hp/6
800 rpm
(386 kW/6 800 rpm)Maximum torque
acc. to SAE J 1349465 lb-ft/5 200 rpm
( 630 Nm/5 200 rpm)Maximum engine
speed7 000 rpmFiring order1-5-4-2-6-3-7-8Poly-V-belt2 360 mmElectrical system SL 63 AMGAlternator14 V/180 AStarter motor12 V/2.1 kWStarter battery12 V/35 AhBattery for
electrical
consumers12 V/70 AhSpark plugs, typeNGK ILZKAR 7A10Spark plugs,
electrode gap0.039 in (1.0 mm)Spark plugs,
tightening torque15 - 18 lb-ft
(20 - 25 Nm)Main dimensions SL 63 AMGOverall vehicle
length181.0 in (4 598 mm)187.9 in
(4 772 mm) 27Overall vehicle
width 2881.5 in (2
069 mm)Overall vehicle
height51.1 in (1 298 mm)66.1 in (1 680 mm) 27Wheelbase100.8 in (2
560 mm)Track, front61.8 in (1 569 mm)Track, rear61.2 in (1 555 mm)Turning circle36.3 ft (11.05 m)SL 63 AMGTrunk loadmax. 220 lb (100 kg)
Vehicle specification SL 65 AMG
(230.479)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.
Engine SL 65 AMGEngine, type275Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders12Bore3.25 in (82.60 mm)Stroke3.66 in (93.00 mm)Total piston
displacement364.9 cu in
(5 980 cm 3
)26 Premium fuel required. Performance may vary with fuel octane rating.
27 When opening/closing hardtop.
28 Exterior rear view mirrors folded out.298Vehicle specification SL 65 AMG (230.479)Technical data
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Engine SL 65 AMGCompression
ratio9.0:1Output acc. to
SAE J 1349 29603 hp/
4 800 - 5 100 rpm
(450 kW/
4 800 - 5 100 rpm)Maximum torque
acc. to SAE J 1349738 lb-ft/
2 000 - 4 000 rpm
(1 000 Nm/
2 000 - 4 000 rpm)Maximum engine
speed5 950 rpmFiring order1-12-5-8-3-10-
6-7-2-11-4-9Poly-V-belt2 335 mmElectrical system SL 65 AMGAlternator14 V/180 AStarter motor12 V/1.7 kWStarter battery12 V/35 AhBattery for
electrical
consumers12 V/70 AhSpark plugs, typeNGK IFR 6Q-GSpark plugs,
electrode gap0.028 in (0.7 mm)Spark plugs,
tightening torque18 - 22 lb-ft
(25 - 30 Nm)Main dimensions SL 65 AMGOverall vehicle
length181.0 in (4 598 mm)187.9 in
(4 772 mm) 30Main dimensions SL 65 AMGOverall vehicle
width 3181.5 in (2
069 mm)Overall vehicle
height51.1 in (1 298 mm)66.1 in (1 680 mm) 30Wheelbase100.8 in (2
560 mm)Track, front61.8 in (1 569 mm)Track, rear61.2 in (1 555 mm)Turning circle36.3 ft (11.05 m)SL 65 AMGTrunk loadmax. 220 lb (100 kg)
Rims and tires
Notes
! Only use tires which have been tested and
approved by Mercedes-Benz. Tires
approved by Mercedes-Benz are developed
to provide best possible performance in
conjunction with the driving safety systems
on your vehicle such as the ABS or the
ESP ®
. Tires specially developed for your
vehicle and tested and approved by
Mercedes-Benz can be identified by finding
the following on the tire’s sidewall:
R MO =
Mercedes-Benz Original
equipment tires
R MO1 =
Mercedes-Benz Original
equipment tires (applicable to selected
tire sizes only)
R MOE =
Mercedes-Benz Original Extended
(tires with limited run-flat
characteristics) original equipment tires
29 Premium fuel required. Performance may vary with fuel octane rating.
30 When opening/closing hardtop.
31 Exterior rear view mirrors folded out.Rims and tires299Technical data230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 299Z