i
Remove the SmartKey if you park the
vehicle and do not require any electrical
consumers. The vehicle will then use very
little energy, thus conserving battery
power.
i If the power supply has been interrupted,
e.g. if you reconnect the battery, you will
have to:
R set the clock; see the separate operating
instructions.
On vehicles with COMAND and a naviga- tion system, the clock is set automati-
cally.
R reset the function for folding the exterior
mirrors in/out automatically by folding
the mirrors out once (Y page 103)4
. Charging the battery
G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery. G
WARNING
Battery acid is caustic. There is a risk 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
A discharged battery can freeze at tempera-
tures below freezing point. When jump-start-
ing the vehicle or charging the battery, gases can escape from the battery. There is a risk of
an explosion. Allow the frozen battery to thaw out before
charging it or jump-starting.
! Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz. These battery
chargers allow the battery to be charged
while still installed in the vehicle.
! Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
! Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment (Y page 294).
X Open the hood.
X Connect the battery charger to the positive
terminal and ground point in the same
order as when connecting the donor bat-
tery in the jump-starting procedure
(Y page 294).
X Read the battery charger's operating
instructions before charging the battery.
4 This function is only available in vehicles for Canada. Battery (vehicle)
293Breakdown assistance Z
could otherwise be locked out when push-
ing or towing the vehicle. Installing/removing the towing eye
Installing the towing eye G
WARNING
The exhaust tail pipe may be very hot. There is
a risk of burns when removing the rear cover.
Do not touch the exhaust pipe. Take particular
care when removing the rear cover.
X Remove the towing eye from the vehicle
tool kit (Y page 286).
The mountings for the removable towing eyes
are located in the bumpers. They are at the
front and at the rear, behind the covers. X
Take cover 0043off the opening.
X Screw in and tighten the towing eye clock-
wise to the stop.
Removing the towing eye X
Unscrew and remove the towing eye.
X Attach cover 0043to the bumper and press
until it engages.
X Place the towing eye in the vehicle tool kit. Towing a vehicle with both axles on
the ground
It is important that you observe the safety
instructions when towing away your vehicle
(Y page 296).
X Switch on the hazard warning lamps
(Y page 111).
i When towing with the hazard warning
lamps switched on, use the combination
switch as usual to signal a change of direc- tion. In this case, only the indicator lamps
for the direction of travel flash. After reset- ting the combination switch, the hazard
warning lamp starts flashing again.
X Turn the SmartKey to position 2in the igni-
tion lock.
X When the vehicle is stationary, depress the
brake pedal and keep it depressed.
X Shift the automatic transmission to posi-
tion N.
X Release the brake pedal.
X Release the parking brake. Towing the vehicle with the rear axle
raised
Only possible for vehicles without
4MATIC.
When towing your vehicle with the rear axle
raised, it is important that you observe the
safety instructions (Y page 296).
! The ignition must be switched off if you
are towing the vehicle with the rear axle
raised. Intervention by ESP ®
could other-
wise damage the brake system.
X Bring the front wheels into the straight-
ahead position.
X Switch on the hazard warning lamps
(Y page 111). Towing and tow-starting
297Breakdown assistance Z
