2016 MERCEDES-BENZ SL ROADSTER ECU

Stowage areas
Stowage compartments
Important safety notes G
WARNING
If objects in the passenger compartment are
stowed incorrectly, they can slide or be
thrown around and hit vehicle occupants. In
addition, cupholders, open stowage spaces
and mobile phone brackets cannot always
retain all objects they contain. There is a risk of injury, particularly in the event of sudden
braking or a sudden change in direction.
R Always stow objects so that they cannot be
thrown around in such situations.
R Always make sure that objects do not pro-
trude from stowage spaces, parcel nets or
stowage nets.
R Close the lockable stowage spaces before
starting a journey.
R Always stow and secure heavy, hard, poin-
ted, sharp-edged, fragile or bulky objects in
the boot.
Glove compartment X
To open: pull handle :and open glove com-
partment flap ;.
X To close: fold glove compartment flap ;
upwards until it engages.
In the glove compartment, there is a coin holder, a map holder and a pen holder.
i The glove compartment can be ventilated
(Y page 130). The glove compartment can be locked and
unlocked using the emergency key element.
X To lock: insert the emergency key element
into the lock and turn it to position 2.
X To unlock: insert the emergency key element
into the lock and turn it to position 1.
Stowage compartment/telephone
compartment under the armrest X
To open: press button :.
Armrest ;folds out.
There is a stowage tray and a mobile phone
bracket the stowage compartment.
i Depending on the vehicle equipment, a USB
port and a Media Interface is installed in the
stowage compartment. A Media Interface is a universal interface for mobile audio equip-
ment, e.g. for an iPod ®
or MP3 Player . 262
Stowage areasStowing and features

Problems with the loading aid
Problem
Possible causes/consequences and
M
MSolutions It is no longer possible to
lower the stowed roof in
the boot using the load-
ing aid. You cannot close the boot any more.
X Call a qualified specialist workshop. Stowage well under the boot floor
X
To open: open boot separator ;
(Y page 95).
X Swing boot floor =upwards using loop :.
The TIREFIT kit, tyre-change tool kit, etc. is loca-
ted in the stowage compartment. Features
Cup holders
Important safety notes G
WARNING
If you do not correctly store objects in the
vehicle interior, they can slip or be flung
around, thus striking vehicle occupants.
There is a risk of injury, especially when brak- ing or abruptly changing directions.
R Always store objects so that they cannot be
flung around in these or in similar situa-
tions.
R Always make sure that objects do not pro-
trude from stowage compartments, lug-
gage nets or stowage nets. R
Close lockable stowage compartments
while driving.
R Stow and secure objects that are heavy,
hard, pointy, sharp-edged, fragile or too
large in the boot.
! Only use the cup holders for containers of
the right size and which have lids. The drinks could otherwise spill.
! Do not expose drinks bottles in the cup
holder in the centre console to continuous,
strong and direct sunlight. The passenger
compartment in the area of the centre con-
sole can otherwise be damaged by the con-
centrated and reflected sunlight.
Cup holder in the centre console X
To open: open stowage compartment =
(Y page 263).
X To remove the insert: slide catches:
inwards in the direction of the arrow.
X Remove the cup holder insert upwards.
X To refit the insert: place the insert in stow-
age compartment =.
X Slide catches :outwards in the direction of
the arrow until they engage. 266
FeaturesStowing and features

You can remove the rubber mat of the cup
holder to clean it. Wash it with clean, lukewarm water only.
Reducer ;can be removed. In this way, you
can place large and small containers in the cup
holder.
X To remove: grip reducer ;and pull out
upwards in the direction of the arrow.
X To insert: place reducer ;into the cup
holder and push it downwards against the
direction of the arrow to the stop. Bottle holders
Observe the "Important safety notes" in the
"Stowage compartments" section (Y page 262).X
To open: open the stowage compartment
(Y page 263).
X To remove the insert: slide catches:
inwards in the direction of the arrow.
X Lift bottle holder insert ;up and remove.
X To refit the insert: place insert;in the
stowage compartment.
X Slide catches :outwards in the direction of
the arrow until they engage.
The bottle holder does not secure bottles; it
merely prevents them from tipping over. Sun visors
Overview :
Mirror light
; Retainer
= Retaining strip, e.g. for a car park ticket
? Vanity mirror
A Mirror cover Ashtray
X
To open: open stowage compartment :
(Y page 263).
X To remove the insert: pull insert;up in the
direction of the arrow, out of the cup holder.
X To refit the insert: push insert;on the left-
hand side into the cup holder.
i Only refit insert
;on the left-hand side of
the cup holder. Features
267Stowing and features Z

ating and road safety of the vehicle. There is a
risk of an accident.
Stow all objects securely in the vehicle so that
they do not get into the driver's footwell.
Always fit the floormats securely and as pre-
scribed in order to ensure that there is always sufficient room for the pedals. Do not use
loose floormats and do not place several floor-mats on top of one another. X
Slide the seat backwards.
X To fit: lay the floormat in the footwell.
X Press studs :onto retainers ;.
X To remove: pull the floormat away from
retainers ;.
X Remove the floormat. Retrofitted anti-glare film
Retrofitted anti-glare film on the inside of the
windows can interfere with radio/mobile tele-
phone reception. This is particularly the case for conductive or metallic-coated films. You can
obtain information about anti-glare film from a
qualified specialist workshop. Features
275Stowing and features Z

Example: engine oil filler cap
X Turn cap :anti-clockwise and remove it.
X Top up the engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, top up with 1.0 lof engine oil.
X Replace cap :on the filler neck and turn
clockwise.
Make sure that the cap locks securely into
place.
X Check the oil level again with the oil dipstick
(Y page 278).
For further information on engine oil, see
(Y page 324). Checking and adding other service
products
Checking the coolant level G
WARNING
Certain components in the engine compart-
ment could be very hot, e.g. the engine, the
radiator and parts of the exhaust system.
There is a risk of injury when accessing the
engine compartment.
As far as possible, allow the engine to cool
down and only touch the components descri- bed in the following. G
WARNING
The cooling system is pressurised, particu-
larly when the engine is warm. If you open the cap, you could be scalded if hot coolant
sprays out. There is a risk of injury. Let the engine cool down before you open the
cap. Wear gloves and eye protection. Open
the cap slowly to release the pressure. Example
X Park the vehicle on a level surface.
Only check the coolant level if the vehicle is
on a level surface and the engine has cooled
down.
X Turn the key to position 2in the ignition lock
(Y page 132).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 132).
X Check the coolant temperature gauge in the
multifunction display.
The coolant temperature must be below
70 †.
X Turn the key to position 0(Y page 132) in the
ignition lock.
X Slowly turn cap ;half a turn anti-clockwise
to allow excess pressure to escape.
X Turn cap ;further anti-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the filler neck when cold, there is enough
coolant in coolant expansion tank :.
If the coolant level is approximately 1.5 cm
above marker bar =in the filler neck when
warm, there is enough coolant in coolant
expansion tank :.
X If necessary, top up with coolant that has
been tested and approved by Mercedes-Benz.
X Replace cap ;and turn it clockwise as far as
it will go.
Further information on coolant (Y page 325). Engine compartment
279Maintenance and care Z

ite coating could be damaged. This could
cause wiper noise.
! Hold the wiper arm securely when folding
back. The windscreen could be damaged if
the wiper arm hits against it suddenly.
X Fold the wiper arms away from the wind-
screen.
X Clean the wiper blades carefully using a damp
cloth.
X Fold the windscreen wipers back again before
switching on the ignition.
Cleaning the exterior lighting !
Only use cleaning agents or cleaning cloths
that are suitable for plastic lenses. Unsuitable
cleaning agents or cleaning cloths could
scratch or damage the plastic lenses of the
exterior lighting.
X Clean the plastic lenses of the exterior light-
ing using a wet sponge and a mild cleaning
agent, e.g. Mercedes-Benz car shampoo or
cleaning cloths.
Cleaning the mirror turn signal !
Only use cleaning agents or cleaning cloths
that are suitable for plastic lenses. Unsuitable
cleaning agents or cleaning cloths could
scratch or damage the plastic lenses of the
mirror turn signals.
X Clean the plastic lenses of the mirror turn sig-
nals in the exterior mirror housing using a wet sponge and mild cleaning agent, e.g.
Mercedes-Benz car shampoo or cleaning
cloths.
Cleaning the sensors !
If you clean the sensors with a high-pressure
cleaner, make sure that you keep a distance
of at least 30 cm between the vehicle and the high-pressure cleaner nozzle. Information
about the correct distance is available from
the equipment manufacturer. X
Clean sensors :of the driving systems with
water, car shampoo and a soft cloth.
Cleaning the reversing camera !
Do not clean the camera lens and the area
around the reversing camera with a high-pres-
sure cleaner. X
Use clean water and a soft cloth to clean
camera lens :.
Cleaning the exhaust pipe G
WARNING
The exhaust tail pipe and tail pipe trim can
become very hot. If you come into contact
with these parts of the vehicle, you could burn
yourself. There is a risk of injury.
Always be particularly careful around the
exhaust tail pipe and the tail pipe trim. Allow Care
285Maintenance and care
Z

G
WARNING
Battery acid is caustic. There is a risk of injury. Avoid contact with the skin, eyes or clothing.
Do not breathe in any battery gases. Do not
lean over the battery. Keep the batteries out
of the reach of children. Immediately rinse off
battery acid thoroughly with plenty of clean
water and seek medical attention at once. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them with the household rubbish.
They must be collected sep-
arately and disposed of in anenvironmentally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
! Have the battery checked regularly at a
qualified specialist workshop.
Observe the service intervals in the Service
Booklet or contact a qualified specialist work- shop for more information.
! Always have work on the batteries carried
out at a qualified specialist workshop. Should
it, in exceptional circumstances, be abso-
lutely necessary to disconnect the 12-volt
battery yourself, please observe the follow-
ing:
R secure the vehicle to prevent it from rolling
away.
R switch the ignition off.
R first, disconnect the negative terminal, fol-
lowed by the positive terminal.
The transmission is locked in position Pafter
disconnecting the battery.
After the work has been completed, firmly
reinstall the battery and the cover of the pos- itive terminal.
Comply with safety precautions and take pro-
tective measures when handling batteries. Risk of explosion
Fire, naked flames and smoking are
prohibited when handling the bat-
tery. Avoid creating sparks.
Battery acid is caustic. Avoid contact
with the skin, eyes or clothing.
Wear suitable protective clothing, in
particular gloves, an apron and a
face mask.
Immediately rinse acid splashes off
with clean water. Consult a doctor if necessary. Wear eye protection.
Keep children away.
Observe this Owner's Manual.
For safety reasons, Mercedes-Benz recom-
mends that you only use batteries which have
been tested and approved for your vehicle by
Mercedes-Benz. These batteries provide
increased impact protection to prevent vehicle
occupants from suffering acid burns should the battery be damaged in the event of an accident.
In order for the battery to achieve the maximum possible service life, it must always be suffi-
ciently charged.
Like other batteries, the vehicle battery may
discharge over time if you do not use the vehicle.In such cases, have the battery disconnected ata qualified specialist workshop. You can also
charge the battery with a charger recommended
by Mercedes-Benz. For more information,
please contact a qualified specialist workshop.
Have the battery charge checked more fre-
quently if you use the vehicle mainly for short
trips or if you leave it standing idle for a lengthy period. Consult a qualified specialist workshop
if you wish to leave your vehicle parked up for a
long period of time.
When you park the vehicle, remove the key if you do not require any electrical consumers. The 294
Battery (vehicle)Breakdown assistance

Do not use a rapid charging device to start the vehicle. If your vehicle's battery is discharged, the
engine can be jump-started from another vehicle or from a second battery using jump leads.
Observe the following points:
R The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible, jump-
start the vehicle using a second battery or a jump-starting device.
R You may only jump-start the vehicle when the engine and exhaust system are cold.
R Do not start the engine if the battery is frozen. Let the battery thaw first.
R Jump-starting may only be performed using batteries with a nominal voltage of 12 V.
R Only use jump leads that have a sufficient cross-section and insulated terminal clamps.
R If the battery is fully discharged, leave the battery that is being used to jump-start connected for
a few minutes before attempting to start. This charges the empty battery a little.
R Make sure that the two vehicles do not touch.
Make sure that:
R The jump leads are not damaged.
R Non-insulated parts of the terminal clamps do not come into contact with other metal parts while
the jump leads are connected to the battery.
R The jump leads cannot come into contact with parts which can move when the engine is running,
such as the V-belt pulley or the fan.
X Secure the vehicle by applying the electric parking brake.
X Shift the transmission to position P.
X Make sure that the ignition is switched off . All indicator lamps in the instrument cluster must be
off. When using the key, turn the key to position 0in the ignition lock and remove it (Y page 132).
X Switch off all electrical consumers, e.g. rear window heating, lighting etc.
X Open the bonnet. Position number
Bidentifies the charged battery of the other vehicle or an equivalent jump-starting
device.
X Press cover :of positive terminal ;down (in the direction of the arrow) and turn it clockwise.
To expose positive terminal ;, press cover:down further.
X Connect positive terminal ;on your vehicle to positive terminal =of donor battery Busing the
jump lead, always beginning with positive terminal ;on your own vehicle first.
X Start the engine of the donor vehicle and run it at idling speed. Jump-starting
297Breakdown assistance Z