Page 213 of 273

210 Battery
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If a tire constantly loses air, it should be inspected for
damage.
The spare tire should be checked periodically for
condition. Spare tire will age and become worn over
time even if never used, and thus should be inspected
and replaced when necessary.Battery
Important!
Battery replacement information:
The maintenance-free battery is located in the engine
compartment.
The service life of the battery is dependent on its
condition of charge. The battery should always be kept
sufficiently charged, in order to last an optimum length
of time.
Wa r n i n g !
Do not overinflate tires. Overinflating tires can
result in sudden deflation (blowout) because they
are more likely to become punctured or damaged
by road debris, potholes etc.. Follow recommended
inflation pressures.Do not overload the tires by exceeding the specified
vehicle capacity weight (as indicated by the label
on the driver’s door latch post). Overloading the
tires can overheat them, possibly causing a
blowout.
Wa r n i n g !
Failure to follow these instructions can result in
severe injury or death.Never lean over batteries while connecting, you
might get injured.Battery fluid contains sulfuric acid. Do not allow
this fluid to come in contact with eyes, skin or
cloth ing. In c ase it does, im mediately f lush affected
area with water and seek medical help.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..
Page 214 of 273

211 Battery
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Therefore, we strongly recommend that you have the
battery charge checked frequently, and corrected if
necessary, especially if you use the vehicle less than
approximately 200 miles (300 km) per month,
mostly for short distance trips, or if it is not used for
long periods of time.
Only charge a battery with a battery charger after the
battery has been disconnected from the vehicle’s
electrical circuit.
Always disconnect the battery negative lead first and
connect last.
When removing and connecting the battery, always
make sure that all electrical consumers are off and the
key is in steering lock position 0. The battery must
always be securely installed when the vehicle is in
operation. During removal and installation always
protect the disconnected battery positive (+) terminal
with the cover attached to the battery.
While the engine is running the battery terminal clamps
must not be loosened or detached, otherwise the
generator and other electronic components will be
damaged.Battery recycling
Batteries contain materials that can harm the
environment with improper disposal.
Large 12 Volt storage batteries contain lead.
Recycling of batteries is the preferred method of
disposal.
Many states require sellers of batteries to accept old
batteries for recycling.
Page 215 of 273

212 Battery
Te ch n ica l
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cluster displayPractical hintsCar care Index
Jump startingImportant!
A discharged battery can freeze at approximately +14°F
(–10°C). In that case, it must be thawed out before
jumper cables are used. Attempting to jump start a
frozen ba ttery can resul t in exploding , cau sing persona l
injury.
Jumper cable specifications:
•Minimum cable cross-section of 25 mm
2 or
approximately 2 AWG
•Maximum length of 11.5 ft. (3.5 m).
If th e battery is discha rged, th e eng ine shoul d be started
with jumper cables and the (12 V) battery of another
vehicle.
Only use 12 V battery to jump start your vehicle. Jump
starting with more powerful battery could damage the
vehicle’s electrical systems, which will not be covered
by the Mercedes-benz Limited Warranty.
The battery is located in the engine compartment.
Wa r n i n g !
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 batteri es wh ile connec ting 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
cloth ing. In c ase it does, imm edi ately f lu sh af fec ted
area with water, and seek medical help if
necessary.A battery will also produce hydrogen gas, which is
flammable and very explosive. Keep flames or
sparks away from battery, avoid improper
connection of jumper cables, smoking etc..Read all instructions before proceeding.
Page 216 of 273

213 Jump starting
Te ch n ica l
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and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Proceed as follows:
1.Position the vehicle with the charged battery so that
the jumper cables will reach, but never let the
vehicles touch. Make sure the jumper cables do not
have loose or missing insulation.
2.On both vehicles:
•Turn off engine and all lights and accessories,
except hazard warning flashers or work lights.
•Apply parking brake and shift selector lever to
position “P” (manual transmission to Neutral).
Important!
3.Clamp one end of the first jumper cable to the
positive (+) terminal of the discharged battery and
the other end to the positive (+) terminal of the
charged battery. Make sure the cable clamps do not
touch any other metal parts.
4.Clamp one end of the second jumper cable to the
grounded negative (–) terminal of the charged
battery and the final connection to a grounded
heavy metal bracket in the engine compartment or
on the engine of the disabled vehicle.Important!
5.Start engine of the vehicle with the charged battery
and run at high idle. Make sure the cables are not
on or near pulleys, fans, or other parts that will
move when the engine is started. Allow the
discharged battery to charge for a few minutes. Start
engine of the disabled vehicle in the usual manner.
6.After the engine has started, remove jumper cables
by exactly reversing the above installation
sequence, starting with the last connection made
first. When removing each clamp, make sure that it
does not touch any other metal while the other end
is still attached.
Note:
If engine does not run after several unsuccessful
starting attempts, have it checked at the nearest
authorized Mercedes-Benz Center.
Excessive unburned fuel may damage the catalytic
converter.
Page 218 of 273

215 Towing the vehicle
Te ch n ica l
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cluster displayPractical hintsCar care Index Sport Package
G r il l e re m ova l f or S p or t Pa cka g e v e rs i on : P u l l on t op e n d
of grille simultaneously pushing apron (arrow) up.
Grille installation for Sport Package: Position bottom
end of grille and press in securely simultaneously
pushing apron (arrow) up.
We recommend that the vehicle be transported using
f lat bed equipment. This method is preferable to other
types of towing.Do not tow with sling-type equipment. Front towing
with sling-type equipment over bumpy roads will
damage radiator and supports. Rear towing with sling-
type equipment over bumpy roads will damage the
lower edge of the front bumper cover.
Use wheel lift, dolly, or f lat bed equipment, with key in
steering lock turned to position 0.
Towing restrictions for vehicles with automatic
transmission: The vehicle may be towed with all wheels
on the ground and the selector lever in position “N” for
distances up to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km / h). The key must be in steering
lock position 2.
To be certain to avoid a possibility of damage to the
transmission, however, we recommend the drive shaft
be disconnected at the rear axle drive f lange for any
towing beyond a short tow to a nearby garage.
P88.00-2045-26
Wa r n i n g !
With the engine not running, there is no power
assistance for the braking and steering systems. In
this case, it is important to keep in mind that a
considerably higher degree of effort in necessary to
brake and steer the vehicle.
Page 219 of 273

216 Towing the vehicle
Te ch n ica l
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Important!
When towing the vehicle, please, note the following:
With the automatic central locking activated and the
key in steering lock position 2, the vehicle doors lock if
the left front wheel as well as the right rear wheel are
turning at vehicle speeds of approximately 9 mph
(15 km / h) or more.
To prevent the vehicle door locks from locking,
deactivate the automatic central locking.Note:
To signal turns while being towed with hazard warning
f lash er in u se, turn key in steering l ock to position 2 a nd
activate combination switch for left or right turn signal
in usual manner – only the selected turn signal will
operate. Upon canceling the turn signal, the hazard
warning flasher will operate again.
Caution!
If the vehicle is towed with the front axle raised, the
engine must be shut off (key in steering lock position 0
or 1). Otherwise, the ESP will immediately be engaged
and will apply the rear wheel brakes. Switch off the
tow-away alarm as well as the ESP, see page 37 and 170.
Page 229 of 273

226 Emergency engine shut-down
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Emergency engine shut-down
If the engine can no longer be stopped using the key, the
engine can be turned off by removing two fuses.
For easy removal of fuses use the fuse extractor
(supplied with vehicle tool kit) to pull out the fuses
marked on the fuse chart as “ENGINE EMERGENCY
OFF”.
The fuse chart is also located in the vehicle tool kit,
see page 196.
For fuses see page 188.Raising hardtop manually
In case of malfunction, the hardtop can also be raised
manually. This procedure should be performed with
great care by 2 persons.
Prior to raising the hardtop manually, make certain that
all points listed under Retractable Hardtop (see
page 120) were observed.
A hex-socket wrench, located on the inside of the
right-hand cover in the trunk, is required for this job.
1.Open doors or lower windows.
2.For safety reasons, remove key from steering lock.
3.Open trunk.
Page 235 of 273
232 Antenna
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Notes:
Do not open engine hood with wiper arms folded
forward.
Do not allow the wiper arms to contact the windshield
glass without a wiper blade inserted. The glass may be
scratched or broken.
Make certain that the wiper blade is properly installed.
An improperly installed wiper blade may cause
windshield damage.
Antenna
To prevent damage or diminished radio reception after
reinstallation, the non-retractable antenna should not
be removed. The antenna is automatic car-wash safe.Manual release of fuel filler flap
The manual release knob is located behind cover (1) in
the right slide trunk panel.
In case the central locking system does not release the
fuel filler flap, pull the manual release knob (arrow)
while simultaneously opening the fuel filler f lap.
1
P80.20-2110-26