Setting the period of day
X
Press the control switch on the control
lever (Y page 83) up or down until the
am am pm pmsubmenu appears in the multifunc-
tion display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired setting is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected mode is stored.
Setting the hours X
Press the control switch on the control
lever (Y page 83) up or down until the
Hour Hour submenu appears in the multifunc-
tion display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired setting is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected hours are stored.
Setting the minutes X
Press the control switch on the control
lever (Y page 83) up or down until the
Minute Minute submenu appears in the multi-
function display.
X Press the OK button on the control lever
briefly.
X Press the control switch on the control
lever (Y page 83) up or down until the
desired setting is selected.
X Press the OK button on the control lever
briefly to confirm.
The selected minutes are stored. Audio system*
G
WARNING
In order to avoid distraction which could
lead to an accident, the driver should enter
system settings with the vehicle at a stand-
still and operate the system only when road
and traffic conditions permit. Always pay
full attention to traffic conditions first
before operating system controls while
driving.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approx-
imately 14 m) every second. G
WARNING
Always select a volume that allows you to
still hear ambient sound in your immediate
vicinity (e.g. horns, emergency rescue
vehicles, police vehicles, etc.). You could
otherwise cause an accident. G
WARNING
If you wish to have an audio system other
than an original smart audio system fitted
in your vehicle, please always have the nec-
essary work performed at an authorized
smart center.
This is particularly important if your
vehicle is fitted with a radio preinstalla-
tion. Improper connection can result in the
failure of important vehicle functions,
thereby endangering the operating safety
of your vehicle and thus your own safety and
that of other people.
The following pages contain a brief
description of the audio systems available
for the coupé and cabriolet.
The devices are described with their full
complement of equipment. The description
for your individual equipment specifica-
tion applies.
Please refer to the separate operating
instructions for detailed functions. Audio system*
95>> Controls.
* optional Z
ommended rims and tires for summer and
winter operation. They can also offer
advice concerning tire service and pur-
chase. G
WARNING
Replace rims or tires with the same desig-
nation, manufacturer and type as shown on
the original part. For further information
contact an authorized electric drive smart
center. If incorrectly sized rims and tires
are mounted, the wheel brakes or suspen-
sion components can be damaged. Also, the
operating clearance of the wheels and the
tires may no longer be correct. G
WARNING
Worn, old tires can cause accidents. If the
tire tread is worn to minimum tread depth,
or if the tires have sustained damage,
replace them.
When replacing rims, only use genuine
smart wheel bolts specified for the partic-
ular rim type. Failure to do so can result in
the bolts loosening and possibly an acci-
dent.
Retreaded tires are not tested or recom-
mended by smart, since previous damage
cannot always be recognized on retreads.
The operating safety of the vehicle cannot
be assured when such tires are used. G
WARNING
If you feel a sudden significant vibration
or ride disturbance, or you suspect that
possible damage to your vehicle has occur-
red, you should turn on the hazard warning
flashers, carefully slow down, and drive
with caution to an area which is a safe dis-
tance from the road.
Inspect the tires and the vehicle underbody
for possible damage. If the vehicle or tires
appear unsafe, have the vehicle towed to the
nearest authorized electric drive smart
center or tire dealer for repairs. G
WARNING
Do not drive with a flat tire. A flat tire
affects the ability to steer or brake the
vehicle. You could lose control of the vehi-
cle. Continued driving with a flat tire or
driving at high speed with a flat tire will
cause excessive heat build-up and possibly
a fire.
Modifications to the brake system and
wheels and the use of brake dust rings are
not permissible. Important guidelines
R Only use sets of tires and rims of the same
type and make.
R Tires must be of the correct size for the
rim.
R Break in new tires for approximately
60 miles (100 km) at moderate speeds.
R Regularly check the tires and rims for
damage. Dented or bent rims can cause
tire pressure loss and damage to the tire
beads.
R If vehicle is heavily loaded, check tire
inflation pressure and correct as
required.
R Do not allow your tires to wear down too
far. Adhesion properties on wet roads are
sharply reduced at tread depths of less
than 1
/ 8 in (3 mm). Recommended tire inflation pressure
G
WARNING
Follow recommended tire inflation pres-
sures.
Do not underinflate tires. Underinflated
tires wear excessively and/or unevenly,
adversely affect handling and energy con-
sumption of the vehicle, and are more
likely to fail from being overheated.
Do not overinflate tires. Overinflated
tires can adversely affect handling and 128
Tires and wheels>> Operation.
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.
Disconnecting, removing, charging,
reinstalling and reconnecting 12‑volt
battery
Disconnecting the 12-volt battery i
If the 12-volt battery is disconnected
or discharged
R turning the key in the starter switch
will have no effect
R the transmission will remain in park
position P
For more information see “Jump start-
ing” (Y page 200).
X Engage the parking brake.
X Move the gear selector lever to park
position P.
X Turn off all electrical accessories.
X Switch off the drive system.
X Open the passenger door.
X Move the passenger seat to the rear as far
as possible.
X Unscrew the carpet holder in the
passenger footwell (Y page 160).
X Lift the carpet. X
Unscrew fastening screw 0044counter-
clockwise.
X Pull footrest 0043sideways out of the vehi-
cle.
X Read and observe safety instructions and
precautions (Y page 197). !
Always disconnect the battery in the
order described below. Otherwise the
vehicle’s electronics can be damaged.
X Disconnect the battery negative lead
from negative terminal 0087.
Make sure the negative lead does not
come into contact with the positive lead.
X Remove cover 0085from the positive ter-
minal.
X Disconnect the battery positive lead.
Removing the 12-volt battery X
Unscrew battery mount 0083.
X Remove the battery support and bracket.
X Pull out the ventilation hose from the
battery.
Depending on battery arrangement in
your vehicle model, the ventilation hose
is located either on the left or right side
of the battery.
X Remove the battery.
Charging the 12-volt battery G
WARNING
Avoid creating sparks when charging the
battery as escaping gases are flammable.
Keep open flames away from the battery and
do not smoke.
Do not touch the battery terminal with metal
objects and do not remove the battery
charger’s terminal clamps until the battery
charger has been switched off and no fur- Batteries
199>> Practical hints.
Z