battery SMART FORTWO COUPE 2013 Repair Manual

of whether the high-voltage battery is
charged or not. Jump starting will not help
to start the drive system if the high-
voltage battery is drained. The high-
voltage battery must then be charged.
The drive system can be started with jumper
cables and the fully charged battery of
another vehicle or an equivalent starter
pack.
Observe the following:
R Do not start the drive system if the
battery is frozen. Let the battery thaw out
first.
R Only jump start from batteries with the
same voltage rating (12 V). Jump starting
with a more powerful battery could
damage the vehicle’s electrical system.
Such damage will not be covered by the
smart Limited Warranty.
R Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.
R Should the battery be drained
completely, let the donating power
source charge the vehicle for several
minutes before reattempting the
starting process. G
WARNING
Keep flames or sparks away from battery. Do
not smoke.
Observe all safety instructions and
precautions when handling automotive
batteries. 194
Jump starting>> Practical hints.

Jump start assistance
Your vehicle’s 12-volt battery is located in the passenger footwell below the footrest
(Y page 192).
For jump starting, use the terminals of the battery, keeping the leads connected.
X Make sure the two vehicles do not touch.
X Switch off all electrical consumers.
X Engage the parking brake.
X Move the gear selector lever to park position P.
X Switch off the drive system.
X Get access to the battery in the passenger footwell (Y page 192).
X Remove the positive terminal cover. Position
0028represents the charged battery of another vehicle or an equivalent starter
pack.
! Never invert the terminal connections!
X Connect positive terminal 0002of charged battery 0028with positive terminal 0003of your
vehicle’s battery 0029with a jumper cable. Clamp the jumper cable to positive
terminal 0002of charged battery 0028first.
X Start the engine of the vehicle with charged battery 0028.
X Connect negative terminal 002Bof charged battery 0028with negative terminal 002Aof your
vehicle’s battery 0029with a jumper cable. Clamp the jumper cable to negative terminal
002B of charged battery 0028first.
X Start the drive system of your vehicle. You can now switch on minimal consumers. Do
not switch on large consumers such as the rear window defroster or headlamps. Jump starting
195>> Practical hints. Z

X
Remove the jumper cables from negative terminals 002Band 002Afirst.
X Remove the jumper cables from positive terminals 0002and 0003.
You can now switch on the headlamps.
X Remount the positive terminal cover.
X Have the 12-vol tbattery checked at the nearest authorized electric drive smart center.
i Please keep in mind that it will take quite some time to charge the 12-volt battery.
When you switch off the drive system after driving a short distance, you may not be able
to start it again.
Charge the 12-volt battery completely as soon as possible. Towing
About towing
This section offers information on towing
methods for breakdown situations and
emergency towing. Recommended towing method -
Breakdown situation
! To prevent damage during transport, do
not tie down the vehicle by its chassis or
suspension parts — use only wheel straps
to position and hold down the vehicle.
Improper tie down on a flatbed carrier
truck or trailer can damage suspension
parts and body panels.
smart recommends that the vehicle be
transported with all wheels off the ground
using a flatbed carrier truck or
appropriate wheel lift/dolly equipment.
Always have your vehicle transported:
R when the 0002warning lamp for the high-
voltage system lights up in the
instrument cluster
R when the Do not tow (away) message
appears in the instrument cluster
R when the multifunction display is
inoperative R
when one or several of the following
warning lamps light up:
-0001 Drive diagnostics (red)
- 0004 12‑Volt battery
0002 Power steering
R if the brake pedal already starts to
pulsate just after towing begins
R if you have to transport the vehicle over
long distances
X Switch off the tow‑away protection* and
interior motion sensor* (Y page 47). Emergency towing
When circumstances do not permit the
recommended towing method, the vehicle
may be towed with all wheels on the ground
using a strap or tow bar connected to
another vehicle. Only tow the vehicle as far
as necessary to have the vehicle moved to a
safe location where the recommended
towing method can be employed. 196
Towing>> Practical hints.
* optional

G
WARNING
If circumstances require towing the
vehicle with all wheels on the ground,
always tow with a tow bar if:
R the drive system will not run
R there is a malfunction in the brake
system
R there is a malfunction in the power
supply or in the vehicle’s electrical
system
At ow bar is necessary to adequately control
the towed vehicle.
Prior to towing the vehicle with all wheels
on the ground, make sure the gear selector
lever is in neutral position Nand the
ignition is switched on. G
WARNING
With the drive system inactive, there is no
power assistance for the brake and steering
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.
! The vehicle may be towed only for
distances up to 30 miles (50 km) and at a
speed not to exceed 30 mph (50 km/h).
Otherwise, the electric drive or the
high-voltage system could be damaged.
! Do not tow other vehicles.
Otherwise, the drive system or
components of the high-voltage system
could be damaged.
! Do not tow the vehicle with the front
axle raised. Doing so may cause serious
damage to the brake system which is not
covered by the smart Limited Warranty.
! Before towing the vehicle observe the
following instructions:
R Do not tow with sling-type equipment
attached to suspension parts. This may cause damage to the supports if towing
on a bumpy road.
R Towing the vehicle should only be done
using the properly installed towing
eye bolt. Never attach a tow cable, tow
rope, or tow rod to the vehicle chassis,
frame, or suspension parts.
! Make sure the gear selector lever is in
neutral position Nwhile towing the
vehicle. Doing otherwise may result in
significant drive train damage.
! Towing the vehicle with a luggage
rack* mounted is not permissible. The
vehicle must not be towed by the luggage
rack*.
i If the 12-volt battery is disconnected
or discharged, the gear selector lever
will remain locked in park position P.
Contact an authorized electric drive
smart center for assistance or call
Roadside Assistance.
Towing eye bolt The towing eye bolt is located in the
passenger footwell under the carpet.
X
Unscrew the carpet holder in the
passenger footwell (Y page 154).
X Lift the carpet. X
Take out towing eye bolt 0002. Towing
197>> Practical hints.
* optional Z

No. Accessory/Component Amperage Color
001A
CPC, shifter, brake force booster vacuum
pump 7.5 A Brown
001B
Coolant pumps 1 and 2, high-voltage battery 15 A Blue
001D
ESP
®
control unit 25 A Neutral
001E
Exterior lamp switch, turn signal lamp
switch, cockpit switch module, on-board
diagnostics socket, exterior rear view
mirror heating, anti-theft warning system,
rain-light sensor, charge level and power
gauges, central locking system, instrument
cluster, Tire Pressure Monitoring System
(TPMS), brake and turn signal lamps (left and
right) 10 A Red
0020
— — —
0021
— — —
0022
Safety circuit high-voltage battery 15 A Blue
0023
— — —
0024
Rear window wiper (coupé only) 15 A Blue
0033
ESP
®
control unit, EPS control unit, restraint
systems 10 A Red
0034
Electric drive components 7.5 A Brown
0035
Air conditionin
gsystem, exterior rear view
mirror adjustment ,washer pump, audio, seat
heating, wiper switch, cruise control, soft
top switch (cabriolet only) 10 A Red
0036
Auxiliary power outlet 15 A Blue
0037
Left low‑beam headlamp 7.5 A Brown
000D
Right low‑beam headlamp 7.5 A Brown
000C
Backup lamp 15 A Blue
000E
Right high‑beam headlamp 7.5 A Brown
000A
Left high‑beam headlamp 7.5 A Brown
0012
Electric drive components 7.5 A Brown
0025
Rear window defroster 40 A Orange
0026
Soft top (cabriolet only) 30 A Green202
Fuses>> Practical hints.

G
WARNING
Windshield washer concentrate is highly
flammable. Fire, naked flames and smoking
are prohibited when windshield washer
concentrate is being handled. Coolants
The battery and drive system coolant is a
mixture of water and anticorrosion/
antifreeze, which provides:
R Corrosion protection
R Freeze protection
R Boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximatel y-35¦ (-37¥) and
corrosion protection.
! Add premixed coolant solution only.
Adding water and MB 325.0
Anticorrosion/Antifreeze separately
from each other, could cause drive system
damage not covered by the smart Limited
Warranty.
If the antifreeze mixture is effective to
-35¦ (-37¥), the boiling point of the
coolant in the pressurized cooling system
is reached at approximately 266¦
(130¥ ).
The coolant solution must be used year
round, even in countries which have high
temperatures to provide the necessary
corrosion protection and increase
boil‑over protection. Refer to
Maintenance/ Service Booklet for
replacement interval.
Coolant system design and coolant used
determine the replacement interval. The
replacement interval published in the
Maintenance booklet is only applicable if
MB 325.0 Anticorrosion/Antifreeze
solution or other smart approved products
of equal specification are used to renew the coolant concentration or bring it back
up to the proper level.
For information on other smart approved
products of equal specification, contact an
authorized electric drive smart center.
To provide important corrosion
protection, the solution must be at least
50% anticorrosion/antifreeze (equivalent
to freeze protection to approximately
-35¦
[-37¥]).
If you use a solution that is more than 55%
anticorrosion/antifreeze (freeze
protection to approximately -49 ¦
[(-45¥]), the drive system and battery
temperature will increas edue to the lower
heat transfer capability of the solution.
Therefore, do not use more than this amount
of anticorrosion/antifreeze.
If the coolant level is low, water and
MB 325.0 Anticorrosion/Antifreeze should
be used to bring it up to the proper level
(have cooling system checked for signs of
leakage). Please make sure the mixture is
in accordance with label instructions.
Always use anticorrosion/antifreeze that
has been approved by smart. For
information contact an authorized electric
drive smart center.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water.
If you are not sure about the water quality,
consult an authorized electric drive smart
center.
Capacities Cooling-system
capacity
All models approx. 7.8 US qt
(7.4 l)Service fluids and capacities
213>> Technical data. Z