mated values because, for example, they are
influenced by the following factors:
R outside temperature
R active electrical consumers, e.g. air
conditioning, lights
R personal driving style
R traffic conditions
Plan for a sufficient reserve accordingly.
Connecting the vehicle to the Internet Via mobile service module
i
This function is only available if the
vehicle is equipped with a mobile
service module.
You can use the “Vehicle Homepage” when
the vehicle has connected to the Internet
via the mobile service module. The mobile
service module uses GSM (Global System for
Mobile Communications) and transfers the
required data via radio transmission. The
vehicle automatically detects if a connec-
tion to the Internet via the mobile service
module is available or not. No pre-settings
need to be done.
In order to use data transfer via the mobile
service module you do not need a SIM card
and no contract.
i There may be service limitations if the
vehicle is located for example in a
underground garage. Service limita-
tions may also appear in areas with poor
mobile service coverage. In theses cases
you can launch the Internet connection
via powerline (Y page 122).
Via powerline
You can also access the “Vehicle Homepage”
if you do not have GSM reception. This is
possible for example via your DSL router.
This connection is built by the plugged in
charging cable with the aid of the power-
line technology.
The vehicle supports powerline communi-
cation according to the "HomePlug AV" standard. Data is transmitted via phase L1
and the neutral conductor of the power line.
In order for the vehicle to access the Inter-
net, you require a commercially available
adapter of the "HomePlug AV" standard.
This adapter must also have an encryption
button so that it can be configured to com-
municate with the vehicle. Connect the
adapter to the power supply as well as your
Internet connection. If the adapter is con-
nected to different phase than L1, a phase
coupler must be additionally installed.
Only in this way can stable communication
be guaranteed. For questions, consult a
qualified electrician.
i If you already have a powerline network
installed, the vehicle can be integrated
into it.
To establish a connection between the
vehicle and a powerline adapter, carry out
the following:
X Connect the vehicle to a power socket or
a wallbox.
The right 003Dindicator lamp on the
vehicle socket must flash green.
X Insert the powerline adapter into a
neighboring power socket. Observe that
the vehicle and the adapter are con-
nected via phase L1.
X Switch on the ignition.
X Call up the Charge current
Charge current menu on the
control system (Y page 92).
Carry out the following steps within
30 seconds:
X If the value of the charge current is not
set to 8 A: set the value to 8 A and confirm.
X Set the value of the charge current to
12 A and confirm.
X Set the value of the charge current to
8 A and confirm. 122
High-voltage battery>> Operation.
X
Set the value of the charge current to
12 A and confirm.
X Press the encryption button on the pow-
erline adapter within three minutes.
When the powerline adapter shows a con-
nection, the connection process was suc-
cessful.
i Observe the separate operating
instructions of the powerline adapter.
i Contact an authorized electric drive
smart center if you have any questions.
X Next, set the value of the charge current
to the desired value once again.
As soon as the vehicle establishes an Inter-
net connection, you can also use the "Vehi-
cle Homepage" at home during the charging
process. Changes you have made via the
"Vehicle Homepage" are adopted after the
charging process is complete. This data
transmission ends after approximately
three days. Intelligent charging management
If you wish to charge economically and with
minimal damage to the battery, you must set
a departure time ( Ypage 90). This option
to optimize the charging process depends
on your electricity contract and the local
power supplier. Your vehicle detects this
option automatically. Depending on the
departure time which is set, the charging
process of the high-voltage battery may not
be started immediately or may be inter-
rupted during the process. Front compartment
Service flap
Remove the service flap to check the bat-
tery coolant level, windshield washer res-
ervoir level, and brake fluid level. Insert the service flap on the front of the
vehicle so that it does not get damaged or
dirty.
i
The service flap has a strap on the rear
side that ties it to the vehicle body. G
WARNING
Always turn the key to starter switch posi-
tion 0and remove the key from the starter
switch before opening the service flap.
If the windshield wipers should inadver-
tently be switched on, you could be ser-
iously injured by the wiper washer drive,
which is located just below the service
flap. G
WARNING
Make sure the service flap is locked while
driving. Otherwise, the service flap could
become detached and pose a hazard to you
or others.
! Check the fill levels at regular inter-
vals.
! Carefully remove ice, snow, and any
other deposits from the air intake
grilles above the service flap to ensure
air intake at all times.
X Park the vehicle on level ground.
X Switch off the ignition.
X Engage the parking brake. Front compartment
123>> Operation. Z
systems. In this case, it is important to
keep in mind that a considerably higher
degree of effort is necessary to brake and
steer the vehicle. Adapt your driving
accordingly. Brakes
G
WARNING
Make sure not to endanger any other road
users when carrying out braking maneu-
vers.
Refer to the description of the hydraulic
brake assistant (Y page 48).
! Because the ESP ®
operates automati-
cally, the ignition must be switched off
when the parking brake is being tested
on a brake test dynamometer. Active
braking action through the ESP ®
may oth-
erwise seriously damage the brake sys-
tem which is not covered by the smart
Limited Warranty.
Brake pad wear or a leak in the brake system
may be the reason for low brake fluid level
in the brake fluid reservoir.
The brake fluid level in the brake fluid
reservoir may be too low if the brake warn-
ing lamp in the instrument cluster comes
on (Y page 23) although the parking brake
is released.
Have the brake system inspected immedi-
ately. Contact an authorized electric drive
smart center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
electric drive smart center.
Only install brake pads and use brake fluid
recommended by smart. Inclines G
WARNING
Resting your foot on the brake pedal will
cause excessive and premature wear of the
brake pads.
It can also result in the brakes overheat-
ing, thereby significantly reducing their
effectiveness and your ability to stop the
vehicle in sufficient time to avoid an acci-
dent.
Please observe the following guidelines to
avoid that the permitted maximum speed is
exceeded when driving on downhill grades:
R Do not move the gear selector lever to N.
R Recuperation is limited, if:
-the high-voltage battery is fully
charged or too cold
- the power electronics or the electric
motor is overheated.
When driving down long and steep grades,
do not depress the brake pedal perma-
nently. Depress it in intervals instead to
reduce the vehicle speed.
High and low stresses After hard braking, it is advisable to drive
on for some time, rather than immediately
park, so that the air stream will cool down
the brakes faster.
If your brake system is normally only sub-
jected to moderate loads, you should occa-
sionally test the effectiveness of the
brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads.
G
WARNING
Make sure not to endanger any other road
users when carrying out these braking
maneuvers. 148
Driving instructions>> Operation.
Problem Possible causes/consequences and
0050
0050Solutions 0075
Scenario 1:
The SRS indica-
tor lamp illu-
minates when
the ignition is
switched on and
goes out after a
maximum of
4 seconds. The subsequent self check of the safety systems detected no
malfunction. The supplemental restraint system is opera-
tional.
0075
Scenario 2:
The SRS indica-
tor lamp illu-
minates when
the ignition is
switched on and
goes out after a
maximum of
4 seconds for
approximately
1 second, then it
comes on again
and stays on. There is a malfunction in the supplemental restraint systems.
The air bags or Emergency Tensioning Devices could deploy
unexpectedly or fail to deploy in an accident.
X
Do not sit on the passenger seat; this applies particularly
to children.
X Have the system checked at an authorized electric drive
smart center. G
WARNING
If the SRS indicator lamp does not come on when you switch on the ignition or does not go
out again after a few seconds once the drive system is running or comes on again, the sup-
plemental restraint systems are malfunctioning.
In the event that a malfunction of the SRS is indicated as described in scenario 2, the SRS
may not be operational. For your safety, we strongly recommend that you contact an author-
ized electric drive smart center immediately to have the system checked; A malfunctioning
SRS system may not deploy when needed in an accident resulting in serious or fatal injury,
or it might deploy unexpectedly and unnecessarily which could result in an accident and/
or injury to you or to others.
! If the SRS indicator lamp comes on while driving, have the system checked at an
authorized electric drive smart center immediately.
It is possible that the air bag and the emergency tensioning device could be activated
unintentionally or will not function in the event of an accident.
i Information on the operating principle of the air bags can be found in the “Safety”
section (Y page 33). What to do if ...
169>> Practical hints. Z
Problem Possible causes/consequences and
0050
0050Solutions 003E003D
The turn signal indi-
cator lamp(s) do(es)
not illuminate when
the ignition is
switched on and the
corresponding turn
signal is switched on
or the hazard warning
flasher is switched
on. The turn signal indicator lamp(s) has (have) failed.
X
Have the turn signal indicator lamp(s) checked at an author-
ized electric drive smart center. 003E003D
The turn signal indi-
cator lamp(s) flashes
at double frequency. One of the turn signals is malfunctioning.
X
Replace the bulb as soon as possible (Y page 180).
or
X Have the turn signal checked at an authorized electric drive
smart center as soon as possible. Drive system
Problem Possible causes/consequences and
0050 0050Solutions 00AC
The red coolant
temperature
warning lamp
illuminates. The coolant is too hot. The high-voltage battery and/or the
drive system are not cooled sufficiently.
X
Stop the vehicle immediately in a safe location.
X Switch off the drive system.
X Engage the parking brake when leaving the vehicle.
X Contact Roadside Assistance or an authorized electric drive
smart center. 172
What to do if ...>> Practical hints.
Problem Possible causes/consequences and
0050
0050Solutions A warning signal
sounds when parking. You have not engaged the parking brake before releasing the
brake pedal and switching off the drive system.
X
Switch on the ignition to deactivate the acoustic warning.
X Engage the parking brake.
X Make sure the gear selector lever is in park position P.
X Turn the key to starter switch position 0.
X Remove the key from the starter switch.
For safety, it is important that you perform the parking pro-
cedure as described (Y page 77).You can hear a contin-
uous noise from the
front axle when brak-
ing. The vehicle is equipped with a mechanical/acoustic brake pad
indicator.
X
Have the brake pads checked at an authorized electric drive
smart center. Unlocking/locking manually
Unlocking the vehicle
You can unlock the driver’s door and the
charge socket flap by unlocking the
driver’s door using the key. The lock cyl-
inder is fitted with a cap.
X Press button 0034on the key.
i For replacing the transmitter battery
(Y page 178). X
Remove cap 0043from lock cylinder 0044.
X Unlock the driver’s door.
The driver’s door and the charge socket
flap are unlocked. i
To unlock the vehicle centrally press
the central unlocking switch in the upper
center console (Y page 27). Locking the vehicle
If you can no longer lock the vehicle using
the remote control and you do not have a
spare transmitter battery at hand, please
proceed as follows:
X Open the driver’s door.
X Press the central locking switch
(Y page 53).
The indicator lamp on the central lock-
ing switch comes on, when the starter
switch is in position 1.
The indicator lamp on the central lock-
ing switch flashes, when the starter
switch is in position 0.
X Remove the key from the starter switch,
take it with you, and close all doors.
The vehicle is now locked. Unlocking/locking manually
177>> Practical hints. Z
Replacing bulbs for front lamps
Before you start to replace a bulb for a
front lamp, do the following first:
X Turn the exterior lamp switch to position
003F (Ypage 64).
X Switch off the ignition.
X Open the service flap (Y page 123).Left headlamp, (right headlamp in reverse)
Parking and side marker lamp bulb X
Removing:
Driver’s side: Turn bulb socket 0085toward
the outside.
Passenger side: Turn bulb socket 0085
toward the outside.
X Pull bulb socket 0085out of the headlamp
housing.
X Pull the bulb out of bulb socket 0085.
X Installing: Insert the new bulb into bulb
socket 0085.
X Insert bulb socket 0085into the headlamp
housing.
X Driver side: Turn bulb socket 0085toward
the inside.
Passenger side: Turn bulb socket 0085
toward the inside.
Low‑beam headlamp bulb X
Removing: Take off low‑beam headlamp
cover 0087.
X Detach the electrical connector. X
Bend the retainer spring end down and
forward until it unclips. Fold the
retainer spring back.
X Pull the bulb out of the headlamp hous-
ing.
X Installing: Insert the new bulb into the
headlamp housing.
X Fold the retainer spring forward.
X Bend the retainer spring end forward
then up and back to clip in.
X Attach the electrical connector.
X Reinstall low‑beam headlamp cover 0087.
High‑beam headlamp bulb X
Removing: Take off high‑beam headlamp
cover 0044.
X Detach the electrical connector.
X Tilt the bulb socket down and pull it out.
X Pull the bulb out of the bulb socket.
X Installing: Insert the new bulb into the
bulb socket.
X Fit the bulb so that the retaining lug of
the base plate is pointing up.
X Press the bulb into the bulb socket until
it is fully engaged.
X Attach the electrical connector.
X Reinstall high‑beam headlamp cover 0044.
Front turn signal lamp bulb X
Removing: Turn bulb socket 0043counter-
clockwise by a quarter of turn and pull it
out of the headlamp housing.
X Press gently onto the bulb and turn it
counterclockwise.
X Pull the bulb out of bulb socket 0043.
X Installing: Insert the new bulb into bulb
socket 0043.
X Press gently onto the bulb and turn it
clockwise.
X Insert bulb socket 0043into the headlamp
housing. 182
Replacing bulbs>> Practical hints.
The arrow on bulb socket
0043must be in
line with the line on the headlamp hous-
ing.
X Turn bulb socket 0043clockwise by a quar-
ter of turn.
Side turn signal lamp bulb X
Removing: Open the door on the corre-
sponding side. X
Press on retaining lug 0043in the direc-
tion of the arrow until the side turn sig-
nal lamp housing disengages.
X Close the door.
X Use a suitable tool to loosen the side turn
signal lamp housing from the fender.
X Turn the bulb socket counterclockwise
and pull it out of the side turn signal
lamp housing.
X Pull the bulb out of the bulb socket.
X Installing: Insert the new bulb into the
bulb socket.
X Insert the bulb socket into the side turn
signal lamp housing and turn the bulb
socket clockwise.
X Fit the side turn signal lamp housing
onto the fender.
X Press gently onto the side turn signal
lamp housing.
The side turn signal lamp housing must
audibly engage. Replacing bulbs for rear lamps
Before you start to replace a bulb for a rear
lamp, do the following first:
X Turn exterior lamp switch to position
003F (Ypage 64).
X Switch off the ignition.
Tail lamp unit X
Removing:
Coupé: Open the upper tailgate.
X Open the lower tailgate.
X Cabriolet: Open the rear soft top
(Y page 72).
X Remove the side cover in the cargo com-
partment on the corresponding side.
X Fold the damping material forward, if
necessary. Left bulb carrier illustrated as example
0043
Retaining tab
0044 Electrical connector
X Press retaining tab 0043in the center of
the bulb carrier upwards.
X Pull the bulb carrier out of the tail lamp
housing. Replacing bulbs
183>> Practical hints. Z