ECU MERCEDES-BENZ SL-CLASS ROADSTER 2012 Service Manual

Door storage compartmentsGWarning!
Keep the door storage compartments closed
while vehicle is in motion. Failure to do so may
cause the seat belt to catch at the rear and
prevent proper positioning of the seat belt.
:Release button;Storage compartment lidXOpening: Press release button :.
Rear storage compartments
GWarning!
To help avoid personal injury during a collision
or sudden maneuver, exercise care when
storing objects in the vehicle. Put luggage or
cargo in the trunk if possible.
Do not pile luggage or cargo higher than the
seat backrests.
Keep compartment lids closed. This will help
to prevent stored objects from being thrown
about and injuring vehicle occupants during
Rbraking
Rvehicle maneuvers
Ran accident
Driver’s side rear storage compartment
:Release button;Storage compartment lidXOpening: Press release button :.
Luggage compartment in the rear
GWarning!
Secure all pieces of luggage in the rear with
the luggage straps. Unsecured pieces of
luggage can otherwise cause injury during a
braking maneuver and can increase the risk
of injury in an accident.
Never allow anyone to ride in the rear.
The luggage straps can only secure light
luggage items. Carry heavy pieces of luggage
in the trunk.
The rear compartment area is not designed or
intended to accommodate occupants. Severe
personal injury or death may be the result in
an accident.
GWarning!
The shelf below the rear window should not
be used to carry objects. This will avoid such
objects from being thrown about and injuring
vehicle occupants during an accident or
sudden maneuver.
The trunk is the preferred place to carry
objects.
Loading and storing163Controls in detail230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 163Z

XSecuring luggage: Pull strap : out of
holder ;.
XSecure the luggage with strap : so that it
cannot move.
XInsert strap : into latch =.XReleasing strap: Press release button ?
and guide strap : back to holder ;.
Load assist in the trunk
To facilitate trunk loading after opening the
trunk lid, use the load assist feature to raise
the retracted hardtop from its storage
position in the trunk.
GWarning!
To prevent injuries, make sure that there is no
possibility of body parts getting caught in
moving parts. If potential danger exists, press
the switch again. This will immediately stop
the movement of the hardtop.
Hardtop : can only be raised or lowered
when luggage cover ; is closed and the
trunk lid is completely opened.
XRaising the hardtop: Press load assist
button =.
Retracted hardtop : rises a short
distance. Load assist button = comes on
brightly. You can now open luggage
cover ;.
XLowering the hardtop: Close luggage
cover ;.
XPress load assist button =.
Hardtop : lowers. Load assist button =
is dimly lit.
! Only close the trunk if the hardtop is
completely lowered. Otherwise you could
damage the hardtop.
If you begin to close the trunk lid before the
hardtop is completely lowered, the load
assist button will flash and a warning will
sound.
Useful features
Cup holder
GWarning!
In order to help prevent spilling liquids on
vehicle occupants and/or vehicle equipment,
only use containers that fit into the cup
holder. Use lids on open containers and do
not fill containers to a height where the
contents, especially hot liquids, could spill
164Useful featuresControls in detail
230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 164

AshtrayXOpening: Briefly touch cover plate :.XRemoving ashtray insert: Secure vehicle
from movement by engaging the parking
brake.
XShift the automatic transmission into
neutral position N.
XPress sliding knob ; to the right.
The ashtray insert will eject a short
distance.
XReinstalling ashtray insert: Press ashtray
insert into the frame until it snaps into
place.
XClosing: Push down cover plate :.
Cigarette lighter
GObserve Safety notes, see page 51.GWarning!
Never touch the heating element or sides of
the lighter; they are extremely hot. Hold the
knob only.
Make sure any children traveling with you do
not injure themselves or start a fire with the
hot cigarette lighter.
If the engine is off and the cigarette lighter is
being used extensively, the vehicle battery
may become discharged.
XOpen the cover (Y page 166).XSwitch on the ignition.XPush in cigarette lighter :.
Cigarette lighter : will pop out
automatically when hot.
XTake out cigarette lighter :.XReinsert cigarette lighter : in its socket
after use.
Power outlet
The power outlet can be used to
accommodate 12V DC electrical accessories
(e.g. auxiliary lamps, mobile phone chargers)
up to a maximum of 15 A (180 W).
XSwitch on the ignition.
Power outlet in trunk
If the engine is off and power outlet : is
being used extensively, the vehicle battery
may become discharged.
166Useful featuresControls in detail
230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 166

Programming tips
If you are having difficulty programming the
integrated remote control, here are some
helpful tips:
R Check the frequency of hand-held remote
control A (typically located on the reverse
side of the remote). The integrated remote
control is compatible with radio-frequency
devices operating between 280-390 MHz.
R Put a new battery in hand-held remote
control A. This will increase the likelihood
of the hand-held remote control sending a
stronger and more accurate signal to the
integrated remote control.
R While performing step 3, hold hand-held
remote control A at different lengths and
angles from the signal transmitter button
( ; , = or ?) you are programming.
Attempt varying angles at the distance of 2
to 12 inches (5 to 30 cm) away or the same
angle at varying distances.
R If another hand-held remote control is
available for the same device, try the
programming steps again using that other
hand-held remote control. Make sure new
batteries are in the hand-held remote
control before beginning the procedure.
R Straighten the antenna wire from the
garage door opener assembly. This may
help improve transmitting and/or receiving
signals.
i Certain types of garage door openers are
incompatible with the integrated remote
control. If you should experience further
difficulties with programming the
integrated remote control, contact an
authorized Mercedes-Benz Center, or call
the Mercedes-Benz Customer Assistance
Center (USA only) at
1-800-FOR-MERCedes (1-800-367-6372),
or the HomeLink ®
Hotline (USA only) at
1-800-355-3515, or the Customer Service
(Canada only) at 1-800-387-0100.
i USA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful interference, and
2. this device must accept any interference received, including
interference that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
i Canada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference,
and
2. this device must accept any interference received, including
interference that may cause undesired
operation of the device.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
Floormats
GWarning!
Whenever you are using floormats, make sure
there is enough clearance and that the
floormats are securely fastened.
Floormats should always be securely fastened
using the fastening equipment.
Before driving off, check that the floormats
are securely in place and adjust them if
necessary. A loose floormat could slip and
hinder proper functioning of the pedals.
Do not place several floormats on top of each
other as this may impair pedal movement.
Useful features175Controls in detail230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 175Z

XPush handle ; under the hood upwards.XPull up on the hood and then release it.
The hood will be held open at shoulder
height by gas-filled struts automatically.
Closing
GWarning!
When closing the hood, use extreme caution
not to catch hands or fingers. Be careful that
you do not close the hood on anyone.
Make sure the hood is securely engaged
before driving off. Do not continue driving if
the hood can no longer engage after an
accident, for example. The hood could
otherwise come loose while the vehicle is in
motion and injure you and/or others.
XLet the hood drop from a height of
approximately 8 in (20 cm).
XCheck to make sure the hood is fully
closed.
If you can raise the hood at a point above
the headlamps, then it is not properly
closed. Open it again and let it drop with
somewhat greater force.
Engine oil
The amount of oil your engine consumes will
depend on a number of factors, including
driving style. Increased oil consumption can
occur when the vehicle is new or the vehicle
is driven frequently at higher engine speeds.
Engine oil consumption checks should only
be made after the vehicle break-in period.
! Do not use any special lubricant additives,
as these may damage the drive assemblies.
Using special additives not approved by
Mercedes-Benz may cause damage not
covered by the Mercedes-Benz Limited
Warranty.
For further information contact an
authorized Mercedes-Benz Center.
Notes on checking engine oil level
When checking the oil level the vehicle must
be parked on level ground.
SL 550, SL 63 AMG: The vehicle must have
been stationary for at least 5 minutes with the
engine turned off.
SL 600, SL 65 AMG: With the engine at
operating temperature, the vehicle must have
been stationary for at least 5 minutes with the
engine turned off.
With the engine not at operating temperature,
the vehicle must have been stationary for at
least 30 minutes with the engine turned off.
Checking engine oil level with the oil
dipstick
On the SL 550 and SL 63 AMG you can check
the engine oil level with the oil dipstick.
iIn vehicles without an oil dipstick, the
engine oil level is measured with the control
system (Y page 182).
XOpen the hood (Y page 180).Engine compartment181Operation230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 181Z

XScrew the valve cap back onto the valve.
iVehicles with 19" spare wheel only:
Before placing the spare wheel in the spare
wheel well fasten tensioning straps, see
“Compressing the collapsible tire”
(Y page 226).
XPlace the spare wheel into the spare wheel
well.
XSecure the spare wheel by turning retaining
screw = clockwise.
Compressing the collapsible tire
This description applies to vehicles with
19" spare wheel only.
The collapsible tire on a 19" spare wheel must
be compressed with two tensioning straps
before you can store it in the spare wheel well.
XExtend the tensioning strap by pulling the
slider.
XPlace tensioning strap around the spare
wheel rim and collapsible tire with the
buckle facing the inside of the rim.
XClose the buckle.XPull the loose end of the tensioning strap.
The tensioning strap must be pulled as tight
as possible.
Vehicle status messages in the
multifunction display
Notes
Warning and malfunction messages appear in
the multifunction display located in the
instrument cluster.
Certain warning and malfunction messages
are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in this
Operator’s Manual.
Selecting the Vehicle status message
memory menu in the control system
(Y page 120) displays both cleared and
uncleared messages.
High-priority messages appear in the
multifunction display in red color.
Certain messages of high priority cannot be
cleared from the multifunction display using
the reset button (Y page 112) or button
&, *, U or V on the
multifunction steering wheel.
Other messages of high priority and
messages of less immediate priority can be
cleared from the multifunction display using
the reset button or button &, *,
U or V on the multifunction steering
wheel. They are then stored in the Vehicle
status message memory menu
(Y page 120). Remember that clearing a
message will only make the message
disappear. Clearing a message will not
correct the condition that caused the
message to appear.
GWarning!
All categories of messages contain important
information which should be taken note of
and, where a malfunction is indicated,
addressed as soon as possible at an
authorized Mercedes-Benz Center.
Failure to repair the condition noted may
cause damage not covered by the Mercedes-
226Vehicle status messages in the multifunction displayPractical hints
230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 226

VehicleDisplay messagesPossible causes/consequences and M SolutionsNThe trunk is open.XClose the trunk ( Y page 75).LYou are driving with the hood open.XStop the vehicle in a safe location as soon as it is safe to
do so.XClose the hood ( Y page 181).
There is otherwise danger of an accident.
OYou are driving with the hood and the trunk open.XStop the vehicle in a safe location as soon as it is safe to
do so.XClose the hood ( Y page 181) or the trunk ( Y page 75).
There is otherwise danger of an accident.
CYou are driving with at least one door open.XClose all doors.CCheck
DoorsVehicles with KEYLESS-GO:
You are pressing the lock button on the door handle and at
least one door is open.XClose all doors.KRetract.
Roof Oper.
Please
Wait
See Oper.
ManualThe on-board voltage is too low.XRepeat the opening or closing procedure.XStart the engine.The hardtop drive system was shut down for safety reasons
after multiple, consecutive attempts to raise or lower the
hardtop.
After about 10 minutes you can open or close the retractable
hardtop.XSwitch on the ignition.XRepeat the opening or closing procedure.XIf the retractable hardtop still does not open or close
properly, have the hardtop system checked at an
authorized Mercedes-Benz Center.KRetractabl
e Roof
LoweringThe retractable hardtop is not completely opened or closed.
The roof hydraulics will start to lose pressure.XMake sure the retractable hardtop is completely opened or
closed ( Y page 155).Vehicle status messages in the multifunction display241Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 241Z

The factory-equipped battery may only be
replaced with a battery that
R has the same security features
R is of identical size
R is of identical voltage
R is of identical capacity
! As any other battery, the battery may
discharge if you do not operate the vehicle
for an extended period of time. Have the
battery disconnected at a qualified
workshop or an authorized Mercedes-Benz
Center in such a case. You may also
connect an accessory battery charge unit
expressly approved by Mercedes-Benz for
your vehicle model to maintain the battery
charge. Contact an authorized Mercedes-
Benz Center for further information.
The battery, the battery ventilation hose
and the lateral plug must always be
securely installed when the vehicle is in
operation.
! Never loosen or detach battery terminal
clamps while the engine is running or the
SmartKey is in the starter switch or
KEYLESS-GO button is in position 1.
Otherwise the alternator and other
electronic components could be severely
damaged.
Have the battery checked regularly at an
authorized Mercedes-Benz Center.
Refer to Maintenance Booklet for
maintenance intervals or contact an
authorized Mercedes-Benz Center for
further information.
i After battery power was interrupted, do
the following:
R Synchronize the ESP ®
(Y page 228).
R Synchronize the power windows
( Y page 98).Charging the batteryGWarning!
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
charging and could cause an explosion that
may result in personal injury, paint damage or
corrosion.
An accessory battery charge unit specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available. It permits the charging of the
battery in its installed position. Contact an
authorized Mercedes-Benz Center for
information and availability.
Charge battery in accordance with the
separate instructions for the accessory
battery charger.
Have the battery charged at an authorized
Mercedes-Benz Center. If you charge the
battery yourself, follow the operating
instructions for your charging device.
Only use a battery charge unit with a
maximum charging voltage of 14.8 V.
XCharge battery in accordance with the
instructions of the battery charger
manufacturer.
Jump starting
GWarning!
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
Jump starting285Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 285Z

Fuses
Introduction
The electrical fuses in your vehicle serve to
switch off malfunctioning power circuits.
If a fuse is blown, the components and
systems secured by that fuse will stop
operating.
GWarning!
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
approved 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 Center.
A blown fuse must be replaced by an
appropriate 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.
iIn case of a blown fuse contact Roadside
Assistance or an authorized Mercedes-
Benz Center.
If a newly inserted fuse blows again, have the
cause determined and rectified by an
authorized Mercedes-Benz Center.
The fuse chart is located in the trunk with the
vehicle tool kit (Y page 224). The fuse chart
explains the fuse allocation and fuse
amperages.
Before replacing fuses
XEngage the parking brake.XMake sure the automatic transmission is in
park position P.
XSwitch off all electrical consumers.XTurn off the engine.XRemove the SmartKey from the starter
switch.
XVehicles with KEYLESS-GO: Open the
driver’s door (this puts the starter switch in
position 0, same as with the SmartKey
removed from the starter switch). The
driver’s door then can be closed again.
Fuse box in passenger compartment
The fuse box is located under the rear
passenger-side storage compartment.
XOpen the passenger door.XOpening: Open the rear passenger-side
storage compartment (Y page 163).
XLift both clips :.XRemove storage compartment floor ; in
direction of arrow.
XClosing: To reinstall storage compartment
floor ; after checking or replacing fuses,
follow the procedure in reverse order.
! The fuse box cover must be properly
positioned as described. Otherwise,
moisture or dirt could enter the fuse box
and possibly impair fuse operation.
Fuse box in trunk
The fuse in the trunk is located on the right-
hand side of the trunk.
XLift up the trunk floor cover.Fuses291Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 291Z