2015 MERCEDES-BENZ SLS AMG GT COUPE battery

Jump-starting
G
WARNING
Battery acid is caustic. There is arisk of injury.
Avoid contact with the skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the battery. Keep children away from batteries. Wash battery acid immediately with water and seek
medical attention. G
WARNING
During charging and jump-starting, explosive gases can escape from the battery. There is arisk
of an explosion.
Particularly avoid fire, open flames, creating sparks and smoking. Ensure there is sufficient ven-
tilation while charging and jump-starting. Do not lean over abattery. G
WARNING
During the charging process, abattery produces hydrogen gas. If ashort circuit occurs or sparks
are created, the hydrogen gas can ignite. There is arisk of an explosion.
R Make sure that the positive terminal of aconnected battery does not come into contact with
vehicle parts.
R Never place metal objects or tools on abattery.
R It is important that you observe the described order of the battery terminals when connecting
and disconnecting abattery.
R When jump-starting, make sure that the battery poles with identical polarity are connected.
R It is particularly important to observe the described order when connecting and disconnecting
the jumper cables.
R Never connect or disconnectt he battery terminals while the engine is running.G
WARNING
Ad ischarged battery can freeze at temperatures below freezing point. When jump-starting the
vehicle or charging the battery, gases can escape from the battery. There is arisk of an explosion.
Allow the frozen battery to thaw out before charging it or jump-starting.
! Avoid repeated and lengthy startinga
ttempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
Do not start the vehicle using arapid charging device. If your vehicle's battery is discharged,
the engine can be jump-started from another vehicle or from asecond battery using jumper
cables. 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 asecond battery or ajump-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.L et the battery thaw first.
R Only jump-start from batteries with a12Vvoltage rating.
R Only use jumper cables which have asufficient cross-section and insulated terminal clamps. 242
Jump-startingBreakdown assistance

R
If the battery is fullyd ischarged, leave the battery that is being used to jump-start connected
for afew minutes before attempting to start. This charges the battery slightly.
R Make sure that the two vehicle sdonot touch.
Make sure that:
R the jumper cablesa re not damaged.
R when the jumper cablesa re connected to the battery, uninsulated sections of the terminal
clamp do not come into contact with other metal sections.
R the jumper cablesc annot come into contact with parts such as the V-belt pulley or the fan.
These parts move when the engine is started and whileitisr unning.
X Press the electric parking brake handle.
X Shift the transmission to Pwith the button in the center console.
X Remove the SmartKey from the ignition lock.
X Switch off all electrical consumers (e.g. radio, blower, etc.).
X Open the hood (Y page 218). Positio
nnumber 0084identifie sthe charged battery of the other vehicle or an equivalent jump-
starting device.
X Slide cover 0083of positive terminal 0043in the direction of the arrow.
X Connect positive terminal 0043on yourv ehicle to positive terminal 0044of donor battery 0084
using the jumper cable,b eginning with yourown battery.
X Start the engine of the donor vehicle and run it at idling speed.
X Connect negative terminal 0087of donor battery 0084to earth point 0085of yourv ehicle using the
jumper cable,c onnecting the jumper cable to donor battery 0084first.
X Start the engine.
X Before disconnecting the jumper cables, let the engine run for several minutes. Jump-starting
243Breakdown assistance Z

X
First, remove the jumper cable sfrom earth point 0085and negative terminal 0087,then from
positiv eclamp 0043and positiv eterminal 0044.Each time beginning with your vehicle' sbattery.
X Slide cover 0083of the positiv eterminal in the opposite directio ntothe arrow.
X Have the battery checke dataqualified specialist workshop.
i Jump-starting is not considered to be
anorma loperating condition.
i Jumpe
rcable sand further information regarding jump-starting can be obtained at any
qualified specialist workshop. Towing and tow-starting
Important safety notes
G
WARNING
The rea raxlel ocks when:
R the engine is not running
R the engine stalls while the vehicle is being
towed
R there is amalfunction in the power supply
or the vehicle' selectrica lsystem
There is ariskofana ccident.
In the event of abreakdown, yo ushould
always hav ethe vehicle transported. G
WARNING
If the brake system or power steering is mal-
functioning and your vehicle is then towed
away ,significantly more effort may be
required to stee rand brake than is normally
required .There is ariskofana ccident.
In such cases, use atow bar. Befor etowing,
make sur ethat the steering move sfreely. G
WARNING
If the weigh tofthe vehicle to be towe dortow-
starte disgreater than the permissible gross
weigh tofyourv ehicle:
R the towing ey ecould detach itself
R the vehicle/trailer combinatio ncould roll-
over.
There is ariskofana ccident.
Whe ntowing or tow-starting another vehicle,
its weigh tshoul dnot be greater than the per-
missible gros sweigh tofy ourv ehicle. !
Use the SmartKe
yinstead of the Start/
Stop button whe ntowing the vehicle.
Start the engine and keep it running. Turn
the SmartKe ytoposition 2in the ignition.
Set the transmission to Nusing the E-
SELECT lever. Make sure that yo uthen
leave the SmartKe yinposition 2.
Check the transmission positio ninthe
instrument cluster.
! Make sure that the electric parking brake
is released .Ifthe electric parking brake is
faulty ,visit aquali fied specialist workshop.
Mercedes-Benz recommends that yo uuse
an authorized Mercedes-Benz Center for
this purpose.
! Whe
ntowing, pull away slowl yand
smoothly .Ifthe tractive power is too high,
the vehicles could be damaged.
! Only secure the tow rope or tow ba
ratthe
towing eyes. Otherwise, the vehicle could
be damaged.
! Do not us
ethe towing eyes for recovery
purposes as this could damag ethe vehicle.
If in doubt, recover the vehicle with acrane.
! The vehicle can be towe
damaximum of
30 miles (50km). The towing speed of
30 mph (50 km/h )mustn ot be exceeded.
If the vehicle ha stobetowedmore than
30 miles (50km), the entire vehicle mus tbe
raised and transported.
! Do not tow with sling-typ
eequipment.
Thi scould damag ethe vehicle. 244
Towinga
nd tow-startingBreakdow nassistance

GVWR (Gross Vehicl
eWeight Rating)
The GVWR is the maximu mpermitted gross
weight of the fullyl oaded vehicle (weight of
the vehicle including all accessories, occu-
pants, fuel,l uggage and the drawbar nose-
weight if applicable).T he gross vehicle weight
rating is specified on the vehicle identification plate on the B-pilla ronthe driver's side.
Maximum loaded vehicle weight
The maximu mweight is the sum of the curb
weight of the vehicle ,the weight of the acces-
sories ,the total loadl imitand the weight of
the optional equipment installed at the fac-
tory.
Kilopascal (kPa)
Metric unit for tire pressure. 6.9 kPa is the
equivalent of 1psi.A nother unit for tire pres-
sure is bar. There are 100 kilopascals (kPa) to
1b ar.
Load index
In addition to the load-bearing index, the load index may alsobei mprinted on the sidewallof
the tire. This specifies the load-bearing capa-
city more precisely.
Curb weight
The weight of avehicle with standard equip-
ment including the maximu mcapacity of fuel,
oil and coolant. It alsoi ncludes the air-condi-
tioning system and optional equipment if
these are installed in the vehicle ,but does not
includ epassengers or luggage.
Maximum load rating
The maximu mloadr ating in kilograms or
pounds is the maximu mweight for which a
tire is approved.
Maximum permissible tire pressure
Maximu mpermissibl etire pressure for one
tire.
Maximum load on one tire
Maximu mloadono ne tire. This is calculated
by dividing the maximu maxle loadofo ne axle
by two. PSI (pounds per square inch)
As
tandard unit of measure for tire pressure.
Aspec tratio
Relationshi pbetwee ntire heigh tand tire
width in percent.
tire pressure
This is pressure inside the tire applying an
outward force to each square inch of the tire's surface. The tire pressure is specified in
pounds per square inch (psi), in kilopascal
(kPa) or in bar. The tire pressure shoul donly
be corrected when the tires are cold. For this,
the vehicle must have been stationary for at
least three hours or not have traveled more
than 1.6 km (1 mile)int his time.
Tire pressure of coldt ires
The tires are cold:
R if the vehicle has been parked without
direct sunlight on the tires for at least three
hours and
R if the vehicle has not been driven more than
1m ile (1.6 km)
Tread
The part of the tire that comes into contact
with the road.
Bead
The tire beade nsures that the tire sits
securel yonthe wheel. There are severa lsteel
wiresint he beadtop revent the tire from
coming loose from the wheelr im.
Sidewall
The part of the tire betwee nthe tread and the
bead.
Weight of optional extras
The combined weight of those optional extras
that weigh more than the replaced standard
part and more than 2.3 kilograms (5 lbs).
These optional extras, such as high-perform-
ance brakes, level control, aroof rack or a
high-performance battery, are not included in Alla
bout wheels and tires
269Wheelsand tires Z