tire size SMART FORTWO COUPE ELECTRIC DRIVE 2015 Owners Manual

Opening and closing the rear
soft top ............................... 56, 72
Opening and closing the
retractable soft top ............... 55, 71
Removing the side rails .............. 73
Storing the side rails ................ 74
Sound package ............................... 97
SRS (Supplemental Restraint Sys-
tem)
Indicator lamp ........................ 169
Standing water, driving through ...... 152
Starter switch positions .................. 57
Starting the engine ........................ 76
Steering wheel paddle shifters .........79
Storage compartments .................... 106
Coin holder ............................. 106
Door pockets ........................... 106
Drawer ................................... 107
Glove box ................................ 106
in the tailgate ........................ .107
Parcel nets ............................ .107
Storage tray in center console .... 107
Storage trays next to steering
wheel .................................... .106
Storing tires ............................... 138
Sun screen ................................... 109
Sun visors ................................... 109 T
Tail lamps ................................... 181
Tailgate
Closing ............................... 55, 57
Opening .............................. 54, 56
Technical data
Brake fluid ............................ .218
Coolant ................................. .219
Dimensions and weights ............ .215
Identification labels ............... .214
Rims and tires ........................ .216
Service fluids and capacities ..... 217
Windshield/rear window washer
system ................................... 218
Temperature
Coolant ................................. .152
Interior temperature ................ 101
Outside ................................... 87 Tether anchorage points
see Children in the vehicle
Thorax-pelvis side air bags ............. 37
Tightening torque
Wheels ................................... 139
TIN (Tire Identification Num-
ber) ...................................... 142, 145
Tire and Loading Information plac-
ard ............................................ 133
Tire and loading terminology .......... 143
Tire Identification Number
see TIN
Tire inflation pressure
Checking ................................ 130
Important notes on .................... 129
Placard on driver’s door B-pil-
lar ........................................ 133
Tire labeling ...............................1 39
Tire load rating ........................... 145
Tire ply composition and material
used ........................................... 145
Tire Pressure Monitoring System
(TPMS) ........................................ 130
Tire repair kit ....................... 160, 187
Tire speed rating .................... 141, 145
Tires .................................... 127, 216
Air pressure ........................... 128
Care and maintenance ................ 137
Cleaning ................................ 138
Direction of rotation, spinning .. 137
Driving instructions ................ 150
Flat tire ................................. 187
Important notes on tire infla-
tion pressure .......................... 129
Inflation pressure .............. 129, 130
Information placard ................. 133
Inspection .............................. 137
Labeling ................................ 139
Load rating ............................. 145
Ply composition and material
used ...................................... 145
Problems under-/overinflation ... 129
Retreads ................................. 127
Rims and tires (technical data) ... 216
Rotation ................................. 139
Service life ............................ 137
Sizes ..................................... 216 10
Index

Snow chains ...........................
.146
Speed rating ................ 141, 145, 151
Storing .................................. 138
Temperature ......................1 29, 139
Terminology ........................... .143
Tire Identification Number .. 142, 145
Tire Pressure Monitoring Sys-
tem (TPMS) .............................. 130
Traction ..................... 138, 145, 150
Tread ..................................... 145
Tread depth ....................... 137, 146
Treadwear indicators .......... 137, 146
Vehicle maximum load on ........... 146
Wheel change ........................... 195
Winter tires ......................1 46, 216
Top tether
see Children in the vehicle
Total load limit ........................... 145
Tow-away alarm .............................49
Towing ....................................... 203
Traction ................................ 145, 150
Transmission
Driving tips ............................. 81
Hill-start assist system .............. 81
Shifting procedure .................... 79
Transmission position indicator ...... 84
Transmitting power values .............. 213
Traveling abroad .......................... 153
Tread (tires) ................................ 145
Tread depth (tires) .................. 137, 146
Treadwear indicators (tires) ..... 137, 146
Turn signal lamps .........................1 80
Turn signals ................................. 66
Indicator lamps ....................... 172
Turning off the engine .................... 79U
Uniform Tire Quality Grading
Standards .............................. 138, 146
Unlocking the vehicle ..................... 52
Manually ................................. 177
USB socket .................................... 96 V
Vehicle Bulbs .................................... .179 Care ...................................... 153
Data acquisition ....................... 19
Identification Number (VIN) ....... 215
Locking/unlocking .................... 52
Modifications and alterations,
Operating safety ....................... 16
Towing ................................... 203
Unlocking/locking manually ....... 177
Vehicle Homepage
Data protection ........................ 121
Functions ............................... 121
General information .................1 20
Internet connection .................. 122
Personal area .......................... 121
Vehicle Identification Number
(VIN) .......................................... 215
Vehicle lighting ........................... .64
Vehicle loading
Instructions ............................ 108
Load limit .............................. 134
Roof rack ................................ 108
Terminology ............................ 143
Vehicle maximum load on the tire .... 146
Vehicle specification ................... 215
Vehicle washing
see Vehicle care W
Warning signals Brake pads .............................. 177
Door ...................................... 176
Lighting ................................. 176
Parking .................................. 177
Parking brake .......................... 176
Seat belt reminder system .... 168, 176
Warranty coverage ......................... 212
Warranty information ......................13
Washer fluid
Mixing ratio ........................... 218
Refilling ................................ 126
Wiping .................................... 70
Washer jet nozzles .........................187
Washing the vehicle ......................153
Wheel change ...............................1 95
Wheels, sizes ............................... 216
Wheels, Tires and .......................... 127 Index
11

manner which could jeopardize the user’s
safety or the safety of others. Electronic Stability Program (ESP
®
)
Your vehicle is equipped with the Elec-
tronic Stability Program (ESP ®
). The ESP ®
is operational as soon as the drive system
is switched on and it monitors the vehicle’s traction (force of adhesive friction
between the tires and the road surface) and
handling.
The ESP ®
recognizes when a wheel is spin-
ning or if the vehicle starts to skid. By
applying brakes to the appropriate wheel
and by limiting the power output, the ESP ®
works to stabilize the vehicle. The ESP ®
is
especially useful while driving off and on
wet or slippery road surfaces. The ESP ®
also
stabilizes the vehicle during braking and
steering maneuvers.
The ESP ®
warning lamp ÷in the instru-
ment cluster flashes when the ESP ®
is
engaged.
The ESP ®
warning lamp ÷in the instru-
ment cluster comes on when you switch on
the ignition. It goes out when the drive
system is active.
Depending on the driving situation, the
ESP ®
R reduces the speed
R selectively brakes individual wheels
R equalizes the speed of the driven wheels
R stabilizes the vehicle when braking
R assists you in evasive maneuvers on all
roads G
WARNING
If the ESP ®
warning lamp ÷in the
instrument cluster flashes, proceed as fol-
lows:
R While driving off, apply as little throt-
tle as possible.
R While driving, ease up on the accelerator
pedal.
R Adapt your speed and driving style to the
prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid.
The ESP ®
cannot prevent accidents result-
ing from excessive speed. G
WARNING
The ESP ®
cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase the traction afforded. The ESP ®
cannot prevent accidents, including those
resulting from excessive speed in turns, or
hydroplaning. Only a safe, attentive, and
skillful driver can prevent accidents. The
capabilities of an ESP ®
equipped vehicle
must never be exploited in a reckless or
dangerous manner which could jeopardize
the user’s safety or the safety of others.
! 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.
i The ESP ®
will only function properly if
you use wheels of the recommended tire
size (Y page 216). Hydraulic brake assistant
The hydraulic brake assistant operates in
emergency situations. If you apply the
brakes very quickly, the hydraulic brake Driving safety systems
47>> Safety. Z

X
Push cap :onto the windshield washer
reservoir.
X Remount the service flap and close it
(Y page 123). Brake fluid
G
WARNING
During vehicle operation, the boiling
point of the brake fluid is continuously
reduced through the absorption of moisture from the atmosphere. Under extremely
strenuous operating conditions, this mois-
ture content can lead to the formation of
bubbles in the system, thus reducing the
system’s efficiency.
Therefore, the brake fluid must be replaced regularly. Refer to your vehicle’s Mainte-
nance Booklet for replacement interval.
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.
! If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the brake
system checked for brake pad thickness
and leaks immediately. Contact an
authorized electric drive smart center
immediately. Do not add brake fluid as
this will not solve the problem.
X Remove the service flap and insert it on
the front of the vehicle (Y page 123).
The brake fluid reservoir is located in the
front compartment on the passenger side. Checking brake fluid level
X
Perform a visual check of the brake fluid
reservoir :.
The brake fluid level is correct when it
is between the minimum mark and the
maximum mark. R If the brake fluid level has fallen
slightly below the minimum mark,
drive to an authorized electric drive
smart center.
R If the brake fluid level has fallen sig-
nificantly below the minimum mark,
call Roadside Assistance or an author- ized electric drive smart center.
X Remount the service flap and close it
(Y page 123). Tires and wheels
Safety notes
Contact an authorized electric drive smart
center for information on tested and rec-
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- Tires and wheels
127>> Operation.
Z

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
ride comfort, wear unevenly, increase
stopping distance, and result in sudden
deflation (blowout) because they are more
likely to become punctured or damaged by
road debris, potholes etc.
Do not overload the tires by exceeding the
specified load limit as indicated on the
Tire and Loading Information placard on
the driver’s door B‑pillar. Overloading the tires can overheat them, possibly causing a
blowout. Overloading the tires can also
result in handling or steering problems, or brake failure. 128
Tires and wheels>> Operation.

It monitors the tire inflation pressure in
all four tires. A warning is issued to alert
you to a decrease in pressure in one or more of the tires.
The Tire Pressure Monitoring System
(TPMS) is equipped with a combination low
tire pressure/TPMS malfunction telltale in the instrument cluster. Depending on how
the telltale illuminates, it indicates a low
tire pressure condition or a malfunction in
the TPMS system itself:
R If the telltale illuminates continuously,
one or more of your tires is significantly
underinflated. There is no malfunction
in the TPMS.
R If the telltale flashes for 60 seconds and
then stays illuminated, the TPMS system
itself is not operating properly.
The TPMS only functions on wheels that are
equipped with the proper electronic sen-
sors. G
WARNING
The TPMS does not indicate a warning for
wrongly selected inflation pressures.
Always adjust tire inflation pressure
according to the Tire and Loading Infor-
mation placard on the driver’s door B‑pil- lar.
The TPMS is not able to issue a warning due to a sudden dramatic loss of pressure (e.g.
tire blowout caused by a foreign object). In
this case bring the vehicle to a halt by
carefully applying the brakes and avoiding abrupt steering maneuvers. G
WARNING
Each tire should be checked monthly when
cold and inflated to the inflation pressure recommended by the vehicle manufacturer
on the Tire and Loading Information plac-
ard. If your vehicle has tires of a differentsize than the size indicated on the Tire and
Loading Information placard, you should
determine the proper tire inflation pres-
sure for those tires. As an added safety feature, your vehicle has
been equipped with a tire pressure moni-
toring system (TPMS) that illuminates a low
tire pressure telltale when one or more of
your tires is significantly underinflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and
check your tires as soon as possible, and
inflate them to the proper pressure. Driv-
ing on a significantly underinflated tire
causes the tire to overheat and can lead to
tire failure.
Underinflation also increases energy con-
sumption, reduces tire tread life, and may
affect the vehicle’s handling and stopping
ability. Please note that the TPMS is not a
substitute for proper tire maintenance,
and it is the driver’s responsibility to
maintain correct tire pressure, even if
underinflation has not reached the level to trigger illumination of the TPMS low tire
pressure telltale.
Your vehicle has also been equipped with a TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction, the
telltale will flash for approximately
1 minute and then remain continuously
illuminated.
This sequence will continue upon subse-
quent vehicle start-ups as long as the mal-
function exists. When the malfunction
indicator is illuminated, the system may
not be able to detect or signal low tire
pressure as intended.
TPMS malfunctions may occur for a variety
of reasons, including the installation of
incompatible replacement or alternate
tires or wheels on the vehicle that prevent
the TPMS from functioning properly. Always
check the TPMS malfunction telltale after
replacing one or more tires or wheels on
your vehicle to ensure that the replacement Tires and wheels
131>> Operation.
Z

After driving a few minutes the system
verifies that the current tire inflation
pressures are within the system’s speci-
fied range. Afterwards the current tire
inflation pressures are accepted as refer-
ence pressures and then monitored. Maximum tire inflation pressure
G
WARNING
Never exceed the max. tire inflation pres- sure. Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated
tires wear excessively and/or unevenly,
adversely affect handling and energy con-
sumption, and are more likely to fail from
being overheated.
Do not overinflate tires. Overinflated
tires can adversely affect handling and
ride comfort, wear unevenly, increase
stopping distance, and result in sudden
deflation (blowout) because they are more
likely to become punctured or damaged by
road debris, potholes etc. i
For illustration purposes only. Actual
data on tires are specific to each vehicle and may vary from data shown in above
illustration.
This is the maximum permissible tire
inflation pressure :for the tire.
Always follow the recommended tire infla-
tion pressure (Y page 128) for proper tire
inflation. Loading the vehicle
Two labels on your vehicle show how much
weight it may properly carry.
1) The Tire and Loading Information plac- ard can be found on the driver’s door
B‑pillar. This placard tells you impor- tant information about the number of
people that can be in the vehicle and
the total weight that can be carried in
the vehicle. It also contains informa-
tion on the proper size and recommen-
ded tire inflation pressures for the
original equipment tires on your vehi-
cle.
2) The certification label, also found on the driver’s door B‑pillar, tells you
about the gross weight capacity of your
vehicle, called the Gross Vehicle
Weight Rating (GVWR). The GVWR
includes the weight of the vehicle, all
occupants, automotive fluids and
cargo. The certification label also
tells you about the front and rear axle
weight capacity, called the Gross Axle
Weight Rating (GAWR). The GAWR is the
total allowable weight that can be car-
ried by a single axle (front or rear).
Never exceed the GVWR or GAWR for
either the front axle or rear axle. :
Driver’s door B‑pillar
Following is a discussion on how to work
with the information contained on the Tire
and Loading Information placard with
regards to loading your vehicle. Tires and wheels
133>> Operation. Z

load capacity. For example, if the “XXXX”
amount equals 540 lbs and there will be
one 150 lbs passenger in your vehicle, the
amount of available cargo and luggage
load capacity is 390 lbs
(540 lbs - 150 lbs = 390 lbs).
X Step 5: Determine the combined weight of
luggage and cargo being loaded on the
vehicle. That weight may not safely
exceed the available cargo and luggage
load capacity calculated in step 4.
i The maximum cargo compartment load
is 110 lbs (50 kg).
The following table shows examples on how
to calculate total and cargo load capaci-
ties with varying seating configurations
and number and size of occupants. The fol- lowing examples use a load limit of 540 lbs.
This is for illustration purposes only .
Make sure you are using the actual load
limit for your vehicle stated on the vehi-
cle’s Tire and Loading Information placard
(Y page 134).
The higher the weight of all occupants, the
less cargo and luggage load capacity is
available. Tires and wheels
135>> Operation. Z

The traction grades, from highest to low-
est, are AA, A, B, and C. Those grades rep-
resent the tire’s ability to stop on wet
pavement as measured under controlled
conditions on specified government test
surfaces of asphalt and concrete. A tire
marked C may have poor traction perform-
ance.
Temperature G
WARNING
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, underinflation, or excessive load-
ing, either separately or in combination,
can cause excessive heat build-up and pos- sible tire failure.
The temperature grades are A (the highest),
B, and C, representing the tire’s resistance to the generation of heat and its ability todissipate heat when tested under control-
led conditions on a specified indoor lab-
oratory test wheel. Sustained high temper- ature can cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to sudden
tire failure. The grade C corresponds to a
level of performance which all passenger
car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B
and A represent higher levels of perform-
ance on the laboratory test wheel than the
minimum required by law. Rotating tires
G
WARNING
Do not rotate front and rear wheels as they
have different dimensions, e.g. rim size,
wheel offset etc. Otherwise, the handling
can be affected and you could endanger
yourself and others. Thoroughly clean the mounting face of the
wheels and brake discs, i.e. the inner side of the wheels/tires each time the wheels/
tires are changed. Check for and ensure
proper tire inflation pressure. G
WARNING
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
81 lb‑ft (110 Nm).
Only use genuine smart wheel bolts speci-
fied for your vehicle’s rims.
For information on wheel change, see “Flat
tire” (Y page 187). Tire labeling
Besides tire name (sales designation) and
manufacturer name, a number of markings
can be found on a tire.
Following are some explanations for the
markings on your vehicle’s tires: :
Uniform Quality Grading Standards
(Ypage 138)
; DOT, Tire Identification Number (TIN)
(Ypage 142)
= Maximum tire load (Y page 136)
? Maximum tire inflation pressure
(Ypage 133) Tires and wheels
139>> Operation. Z

A
Manufacturer
B Tire ply material (Y page 143)
C Tire size designation, load and speed
rating (Y page 140)
D Load identification (Y page 142)
E Tire name
i For illustration purposes only. Actual
data on tires are specific to each vehicle and may vary from data shown in above
illustration.
For more information, see “Rims and
tires” (Y page 216).
Tire size designation, load and speed
rating :
Tire width
; Aspect ratio in %
= Radial tire code
? Rim diameter
A Tire load rating
B Tire speed rating
i For information purposes only. Actual
data on tires are specific to each vehicle and may vary from data shown in above
illustration.
General:
Depending on the design standards used,
the tire size molded into the sidewall may
have no letter or a letter preceding the tire
size designation.
No letter preceding the size designation
(as illustrated above): Passenger car tire
based on European design standards. Letter “P” preceding the size designation:
Passenger car tire based on U.S. design
standards.
Letter “LT” preceding the size designa-
tion: Light Truck tire based on U.S. design
standards.
Letter “T” preceding the size designation: Temporary spare tires which are high pres-
sure compact spares designed for tempo-
rary emergency use only.
Tire width
Tire width :indicates the nominal tire
width in mm.
Aspect ratio
Aspect ratio ;is the dimensional rela-
tionship between tire section height and
section width and is expressed as a per-
centage. The aspect ratio is arrived at by
dividing section height by section width.
Tire code
Tire code =indicates the tire construc-
tion type. The “R” stands for radial tire
type. Letter “D” means diagonal or bias ply
construction; letter “B” means belted-bias
ply construction.
At the tire manufacturer’s option, any tire
with a speed capability above 149 mph
(240 km/h) can include a “ZR” in the size
designation (for example: 245/40 ZR 18).
For additional information, see “Tire
speed rating” (Y page 141).
Rim diameter
Rim diameter ?is the diameter of the
bead seat, not the diameter of the rim edge. Rim diameter is indicated in inches (in).
Tire load rating G
WARNING
The tire load rating must always be at least
half of the GAWR of your vehicle. Otherwise, tire failure may result and cause an acci-
dent and/or serious personal injury to you
or others. 140
Tires and wheels>> Operation.