2012 MERCEDES-BENZ SL-CLASS ROADSTER Owners Manual

Safety notesGWarning!
The following factors increase the risk of
accidents:
R Excessive speed, especially in turns
R Wet and slippery road surfaces
R Following another vehicle too closely
The driving safety systems described in this
section cannot reduce these risks or prevent
the natural laws of physics from acting on the
vehicle. They cannot increase braking or
steering efficiency beyond that afforded by
the condition of the vehicle brakes and tires
or the traction afforded.
Only a safe, attentive, and skillful driver can
prevent accidents.
The capabilities of a vehicle equipped with the
driving safety systems described in this
section must never be exploited in a reckless
or dangerous manner which could jeopardize
the user’s safety or the safety of others.
Always adjust your driving style to the
prevailing road and weather conditions and
keep a safe distance to other road users and
objects on the street.
If a driving system malfunctions, other driving
safety systems may also switch off. Observe
indicator and warning lamps that may come
on as well as messages in the multifunction
display that may appear.
ABS
GObserve Safety notes, see page 55.GWarning!
Do not pump the brake pedal. Use firm, steady
brake pedal pressure instead. Pumping the
brake pedal defeats the purpose of the ABS
and significantly reduces braking
effectiveness.
The Antilock Brake System (ABS) regulates
the brake pressure so that the wheels do not
lock during braking. This allows you to
maintain the ability to steer your vehicle.
The ABS is functional above a speed of
approximately 5 mph (8 km/h) independent
of road surface conditions.
On slippery road surfaces, the ABS will
respond even to light brake pressure.
The ABS indicator lamp ! in the
instrument cluster comes on when you switch
on the ignition. It goes out when the engine
is running.
Braking
If the ABS activates during braking, the ABS/
ESP ®
warning lamp ÷ or d 7
in the
instrument cluster flashes. Because of the
electro-hydraulic brake system, you will not
feel any pulsation in the brake pedal.
XKeep firm and steady pressure on the brake
pedal.
Continuous, steady brake pedal pressure
yields the advantages provided by the ABS,
namely braking power and the ability to steer
the vehicle.
The ABS/ESP ®
warning lamp ÷ or d 7
flashes whenever the ABS is activated. It can
be an indication for hazardous road
conditions and functions as a reminder to
take extra care while driving.
Emergency brake maneuver
XKeep continuous full pressure on the brake
pedal.GWarning!
If the ABS malfunctions, other driving safety
systems such as the BAS or the ESP ®
are also
switched off. Observe indicator and warning
lamps that may come on as well as messages
in the multifunction display that may appear.
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If the ABS malfunctions, the wheels may lock
during hard braking, reducing steering
capability and extending the braking distance.
BAS
GObserve Safety notes, see page 55.
The Brake Assist System (BAS) operates in
emergency situations. If you apply the brakes
very quickly, the BAS provides full brake
boost automatically, thereby potentially
reducing the braking distance.
XApply continuous full braking pressure until
the emergency braking situation is over.
The ABS will prevent the wheels from
locking.
When you release the brake pedal, the brakes
function again as normal. The BAS is then
deactivated.
GWarning!
If the BAS malfunctions, the brake system still
functions, but without the additional brake
boost available that the BAS would normally
provide in an emergency braking maneuver.
Therefore, the braking distance may increase.
ESP ®
GObserve Safety notes, see page 55.
The Electronic Stability Program (ESP
®
) is
operational as soon as the engine is running.
It monitors the vehicle’s traction (force of
adhesive friction between the tires and the
road surface) and handling.
The ESP ®
recognizes that the vehicle deviates
from the direction of travel as intended by the
driver. By applying brakes to individual
wheels and by limiting the engine output, the
ESP ®
works to stabilize the vehicle. The
ESP ®
is especially useful while driving off and
on wet or slippery road surfaces. The ESP ®
also stabilizes the vehicle during braking and
steering maneuvers.
The ABS/ESP ®
warning lamp ÷ or d 8
in the instrument cluster comes on when you
switch on the ignition. It goes out when the
engine is running.
The ABS/ESP ®
warning lamp ÷ or d 8
in the instrument cluster flashes when the
ESP ®
is engaged.GWarning!
Never switch off the ESP ®
when you see the
ABS/ESP ®
warning lamp ÷ or d 9
flashing in the instrument cluster. In this case
proceed as follows:
R When driving off, apply as little throttle as
possible.
R While driving, ease up on the accelerator
pedal.
R Adapt your speed and driving style to the
prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid. The ESP ®
cannot
prevent accidents resulting from excessive
speed.
! Because the ESP ®
operates
automatically, the engine and ignition must
be shut off (SmartKey in starter switch
position 0 or 1 or KEYLESS-GO start/stop
button in position 0 or 1) when the parking
brake is being tested on a brake test
dynamometer or when the vehicle is being
towed with the front axle raised.
Active braking action through the ESP ®
may otherwise seriously damage the brake
system which is not covered by the
Mercedes-Benz Limited Warranty.
! The ESP ®
will only function properly if you
use wheels of the recommended tire size
8 Depending on vehicle production date.
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as specified in the “Technical data” section
of this Operator’s Manual.
iThe Distronic system and cruise control
switch off automatically when the ESP®
engages.
Electronic Traction System (ETS)
GObserve Safety notes, see page 55.
The ETS (Electronic Traction System) is a
component of the ESP®. The ETS improves
the vehicle’s ability to utilize available
traction, especially under slippery road
conditions by applying the brakes to a
spinning wheel.
When you switch off the ESP®, the ETS is still
enabled.
Switching the ESP® off or on (except
SL 63 AMG)
GWarning!
The ESP® should not be switched off during
normal driving other than in the
circumstances described below. Disabling
the system will reduce vehicle stability in
driving maneuvers.
Do not switch off the ESP® when a spare
wheel is mounted.
To improve the vehicle’s traction, switch off
the ESP®. This allows the drive wheels to spin
and thus cut into surfaces for better grip, for
example
Rwhen driving with snow chains
Rin deep snow
Rin sand or gravel
GWarning!
Switch on the ESP® immediately if the
aforementioned circumstances do not apply
anymore. Otherwise the ESP® will not
stabilize the vehicle when it is starting to skid
or a wheel is spinning.
When you switch off the ESP®,
Rthe ESP® will not stabilize the vehicle
Rthe engine output is not limited, which
allows the drive wheels to spin and thus cut
into surfaces for better grip
Rthe ETS will still apply the brakes to a
spinning wheel
Rthe ESP® continues to operate when you
are braking
Rthe cruise control or the Distronic system
cannot be activated
Rthe cruise control or the Distronic system
switch off if activated
iWhen the ESP® is switched off and one or
more drive wheels are spinning, the ABS/
ESP® warning lamp ÷ or d8 in the
instrument cluster flashes. However, the
ESP® will then not stabilize the vehicle.
Depending on vehicle production date, the
symbol on the ESP® switch may differ.
Version 1
XSwitching off: With the engine running,
press ESP® switch : until the ESP® OFF8Depending on vehicle production date.Driving safety systems57Safety and security230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 57Z

warning lamp å in the instrument
cluster comes on.
The ESP® is switched off.
XSwitching on: Press ESP® switch : until
the ESP® OFF warning lamp å in the
instrument cluster goes out.
You are now again in normal driving mode
with the ESP® switched on.
GWarning!
When the ESP® OFF warning lamp å is
illuminated continuously, the ESP® is
switched off.
When the ABS/ESP® warning lamp ÷ and
the ESP® OFF warning lamp å are
illuminated continuously, the ESP® is not
operational due to a malfunction.
When the ESP® is switched off or not
operational, vehicle stability in standard
driving maneuvers is reduced.
Adapt your speed and driving to the prevailing
road conditions and to the non-operating
status of the ESP®.
Version 2
XSwitching off: With the engine running,
press ESP® switch : until the ABS/ESP®warning lamp d in the instrument
cluster comes on.
The ESP® is switched off.
XSwitching on: Press ESP® switch : until
the ABS/ESP® warning lamp d in the
instrument cluster goes out.
You are now again in normal driving mode
with the ESP® switched on.
GWarning!
When the ABS/ESP® warning lamp d is
illuminated continuously, the ESP® is
switched off or is not operational due to a
malfunction. Vehicle stability in standard
driving maneuvers is reduced.
Adapt your speed and driving to the prevailing
road conditions and to the non-operating
status of the ESP®.
! Avoid spinning of a drive wheel for an
extended period with the ESP® switched
off. This may cause serious damage to the
drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.
SL 63 AMG
Switching the SPORT handling mode on
or off
GWarning!
The SPORT handling mode should not be
switched on during normal driving.
Switching the SPORT handling mode on will
result in the following:
Rno restriction to engine torque
Rsystem-supported traction control is
limited
The SPORT handling mode is designed for
driving on closed tracks when the vehicle’s
natural oversteer and understeer
characteristics are desired and requires a
highly skilled and experienced driver able to
handle these critical driving situations.
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You could lose control of your vehicle and
cause an accident.
Please be aware of these limits when you
switch on the SPORT handling mode.
Do not switch on the SPORT handling mode
when a spare wheel is mounted.
To improve the vehicle’s traction, switch on
the SPORT handling mode. This allows the
drive wheels to spin and thus cut into
surfaces for better grip, for example
Rwhen driving with snow chains
Rin deep snow
Rin sand or gravel
GWarning!
Switch off the SPORT handling mode and
switch on the ESP® immediately if the
aforementioned circumstances do not apply
anymore. Otherwise the SPORT handling
mode will only stabilize the vehicle to a limited
extent when it is starting to skid or a wheel is
spinning.
When you switch on the SPORT handling
mode
Rthe ESP® stabilizes the vehicle only to a
limited extent
Rthe engine output is limited, but only to the
extent that allows the drive wheels to spin
and thus cut into surfaces for better grip
Rthe ETS will still apply the brakes to a
spinning wheel
Rthe ESP® continues to operate when you
are braking hard
Rthe cruise control or the Distronic system
cannot be activated
Rthe cruise control or the Distronic system
switch off if activated
iWhen the SPORT handling mode is
switched on and one or more drive wheels
are spinning, the ABS/ESP® warning lamp
÷ or d8 in the instrument cluster
flashes. However, the ESP® will then
stabilize the vehicle only to a limited extent.
Depending on vehicle production date, the
symbol on the ESP® switch may differ.
Version 1
XSwitching on: With the engine running,
press ESP® switch : briefly.
The SPORT handling mode warning lamp
in the instrument cluster comes on.
The message SPORT handling mode
appears in the multifunction display.
XSwitching off: With the engine running,
press ESP® switch : briefly.
The SPORT handling mode warning lamp
in the instrument cluster goes out.
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Version 2
XSwitching on: With the engine running,
press ESP® switch : briefly.
The ABS/ESP® warning lamp d in the
instrument cluster comes on. The message
ESP-SPORT appears in the multifunction
display.
XSwitching off: With the engine running,
press ESP® SPORT switch : briefly.
The ABS/ESP® warning lamp d in the
instrument cluster goes out. The message
ESP-ON appears in the multifunction
display.
The SPORT handling mode switches off
automatically when you turn off the engine.
When starting the engine, the ESP® is
activated automatically.
Switching the ESP® off or on
GWarning!
The ESP® should not be switched off during
normal driving.
Disabling of the system will result in the
following:
Rno restriction to engine torque
Rloss of system-supported traction control
“ESP® OFF” is designed for driving on closed
tracks when the vehicle’s natural oversteer
and understeer characteristics are desired
and requires a highly skilled and experienced
driver able to handle these critical driving
situations.
You could lose control of your vehicle and
cause an accident.
Please be aware of these limits when you
switch off the ESP®.
Do not switch off the ESP® when a spare
wheel is mounted.
To improve the vehicle’s traction, switch off
the ESP®. This allows the drive wheels to spin
and thus cut into surfaces for better grip, for
example
Rwhen driving with snow chains
Rin deep snow
Rin sand or gravel
GWarning!
Switch on the ESP® immediately if the
aforementioned circumstances do not apply
anymore. Otherwise the ESP® will not
stabilize the vehicle when it is starting to skid
or a wheel is spinning.
When you switch off the ESP®,
Rthe ESP® will not stabilize the vehicle
Rthe engine output is not limited, which
allows the drive wheels to spin and thus cut
into surfaces for better grip
Rthe ETS will still apply the brakes to a
spinning wheel
Rthe ESP® continues to operate when you
are braking hard
Rthe cruise control or the Distronic system
cannot be activated
Rthe cruise control or the Distronic system
switch off if activated
iWhen the ESP® is switched off and one or
more drive wheels are spinning, the ABS/
ESP® warning lamp ÷ or d8 in the
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instrument cluster does not flash. The
ESP® will then not stabilize the vehicle.
Depending on vehicle production date, the
symbol on the ESP® switch may differ.
Version 1
XSwitching off: With the engine running,
press ESP® switch : until the ESP® OFF
warning lamp å in the instrument
cluster comes on.
The message ESP-OFF appears in the
multifunction display.
XSwitching on: With the engine running,
press ESP® switch : until the ESP® OFF
warning lamp å in the instrument
cluster goes out.
The message ESP-ON appears in the
multifunction display.
GWarning!
When the ESP® OFF warning lamp å is on,
the ESP® is switched off.
When the ABS/ESP® warning lamp ÷ and
the ESP® OFF warning lamp å are
illuminated continuously, the ESP® is not
operational due to a malfunction
When the ESP® is switched off or not
operational due to a malfunction, vehicle
stability in standard driving maneuvers is
reduced.
Adapt your speed and driving to the prevailing
road conditions and to the non-operating
status of the ESP®.
Version 2
XSwitching off: With the engine running,
press ESP® switch : until the ABS/ESP®
warning lamp d and the ESP® OFF
warning lamp % in the instrument
cluster come on.
The message ESP-OFF appears in the
multifunction display.
XSwitching on: With the engine running,
press ESP® switch : briefly.
The ABS/ESP® warning lamp d and the
ESP® OFF warning lamp % in the
instrument cluster go out. The message
ESP-ON appears in the multifunction
display.
GWarning!
When the ABS/ESP® warning lamp d and
the ESP® OFF warning lamp % are
illuminated continuously, the ESP® is
switched off. Vehicle stability in standard
driving maneuvers is reduced.
Adapt your speed and driving to the prevailing
road conditions and to the non-operating
status of the ESP®.
! Avoid spinning of a drive wheel for an
extended period with the ESP® switched
off. This may cause serious damage to the
drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.
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Electro-hydraulic brake system
The electro-hydraulic brake system combines
a hydraulic brake circuit with electronically
controlled brake servo assistance. You have
increased braking safety and improved
braking comfort.GWarning!
Never ignore a brake malfunction indicated in
the speedometer display, for example by the
$ (USA only) or J (Canada only)
indicator lamp. Refer to the “Practical hints”
section. Also read and observe the messages
in the instrument cluster multifunction
display.
For information on warning and indicator
lamps, see the “Practical hints” section
( Y page 255). For information on the
messages that may appear in the
multifunction display, see the “Practical
hints” section ( Y page 227) and
( Y page 237).
GWarning!
The electro-hydraulic brake system requires
electrical power to operate.
A malfunction in the vehicle’s power supply or
electrical system may impair brake system
operation and switch it into its emergency
operation mode. In such a case, the red brake
warning lamp comes on and warning
messages appear in the multifunction display
while driving. To brake, the driver must then
apply significantly greater brake pedal
pressure and depress the pedal much further
to obtain the expected braking effect. If
necessary, apply full pressure to the brake
pedal. Brakes are only applied to the front
wheels. Stopping distance is increased!
If there is a malfunction in the electro-
hydraulic brake system, we recommend that
the vehicle be transported with all wheels off
the ground using flatbed or appropriate wheel
lift/dolly equipment.
A tow bar must be used if circumstances do
not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on the
ground is only permissible for distances up to
30 miles (50 km) and at a speed not to exceed
30 mph (50 km/h). For more information, see
the “Towing the vehicle” section in this
Operator’s Manual.
The electro-hydraulic brake system is
activated automatically when you
R unlock the vehicle with the SmartKey or
with KEYLESS-GO
R open the driver’s or passenger door
R turn the SmartKey in the starter switch to
position 1
R press the start/stop button on the gear
selector lever once (vehicles with
KEYLESS-GO)
R depress the brake pedal
R release the parking brake
If the electro-hydraulic brake system is
activated as the brake pedal is first
depressed, you may feel a reduced pedal
resistance and longer pedal travel than
normal. When releasing the pedal, you may
also feel the brake pedal pulsate and you may
hear a sound which is caused by the
activation of the electro-hydraulic brake
system pump. This is normal and not an
indication of a malfunction. Pedal travel
returns to normal when you release the brake
pedal and the sound soon ceases.
If you experience the above while driving and
the red brake warning lamp illuminates
and/or warning messages appear in the
multifunction display, the brake system is
malfunctioning. Follow the instructions of the
warning message(s) and have the brake
system checked immediately.GWarning!
Have brake pad replacement and other work
on the electro-hydraulic brake system carried
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