
DO−IT−YOURSELF MAINTENANCE: Engine and Chassis267
Look at the see−through coolant reser-
voir when the engine is cold. The cool-
ant level is satisfactory if it is between
the “F” and “L” lines on the reservoir.
If the level is low, add coolant. (For the
coolant type, see “Coolant type selec-
tion” described below.)
The coolant level in the reservoir will vary
with engine temperature. However, if the
level is on or below the “L” line, add
coolant. Bring the level up to the “F” line.
If the coolant level drops within a short
time after replenishing, there may be a
leak in the system. Visually check the
radiator, hoses, engine coolant filler cap,
radiator cap and drain cock and water
pump.
If you can find no leak, have any autho-
rized Toyota dealer or repairer, or another
duly qualified and equipped professional,
test the cap pressure and check for leaks
in the cooling system.
CAUTION
To prevent burning yourself, do not
remove the radiator cap when the en-
gine is hot.
Coolant type selection
Use of improper coolants may damage
your engine coolingsystem.
Only use “Toyota Super Long Life Coolant”
or similar high quality ethylene glycol
based non−silicate, non−amine, non−nitrite,
and non−borate coolant with long−life hy-
brid organic acid technology. (Coolant with
long−life hybrid organic acid technology is
a combination of low phosphates and or-
ganic acids.)
“Toyota Super Long Life Coolant” is a mix-
ture of 50% coolant and 50% deionized
water. This coolant provides protection
down to about−35_C(−31_F).
NOTICE
Do not use plain water alone.
AYGO WE 99E37E1102.18
Checking the engine coolant
level

268DO−IT−YOURSELF MAINTENANCE: Engine and Chassis
Z72109
Toyota recommends “Toyota Super Long
Life Coolant”, which has been tested to
ensure that it will not cause corrosion nor
result in the malfunction of your engine
coolant system, with proper usage.
“Toyota Super Long Life Coolant” is
formulated with long−life hybrid organic
acid technology and has been specifically
designed to avoid engine coolingsystem
malfunction in Toyota vehicles.
Please contact any authorized Toyota
dealer or repairer, or another duly quali-
fied and equipped professional, for further
details.If any of the above parts are extremely
dirty or you are not sure of their condi-
tion, take your vehicle to any authorized
Toyota dealer or repairer, or another duly
qualified professional.
CAUTION
To prevent burning yourself, be care-
ful not to touch the radiator or con-
denser, when the engine is hot.
NOTICE
To prevent damage to the radiator
and condenser, do not perform the
work by yourself.
AYGO WE 99E37E1102.18
Checking the radiator and
condenser

DO−IT−YOURSELF MAINTENANCE: Engine and Chassis275
Replacing wheels
WHEN TO REPLACE YOUR WHEELS
If you have wheel damage such as
bending, cracks or heavy corrosion, the
wheel should be replaced.
If you fail to replace a damaged wheel,
the tire may slip off the wheel or cause
loss of handling control.
WHEEL SELECTION
When replacing wheels, care should be
taken to ensure that the wheels are re-
placed by ones with the same load ca-
pacity, diameter, rim width, and inset
∗.
Correct replacement wheels are available
at your Toyota dealer or repairer, or
another duly qualified and equipped pro-
fessional.
∗: Conventionally referred to as “offset”.
A wheel of a different size or type may
adversely affect handling, wheel and bear-
ing life, brake cooling, speedometer/odom-
eter calibration, stopping ability, headlight
aim, bumper height, vehicle ground clear-
ance, and tire or snow chain clearance to
the body and chassis.
Replacement with used wheels is not rec-
ommended as they may have been sub-
jected to rough treatment or high mileage
and could fail without warning. Also, bent
wheels which have been straightened may
have structural damage and therefore
should not be used. Never use an inner
tube in a leaking wheel which is designed
for a tubeless tire.
CAUTION
Do not use wheels other than the
manufacturer ’s recommended size, as
this may cause dangerous handling
characteristics resulting in loss of
control. Otherwise, an accident may
occur resulting in death or serious
injuries.
Aluminum wheel precautions
DWhen installing aluminum wheels,
check that the wheel bolts are tight
after driving your vehicle the first1600
km (1000 miles).
DIf you have rotated, repaired, or
changed your tires, check that the
wheel bolts are still tight after driving
1600 km (1000 miles).
DWhen using tire chains, be careful not
to damage the aluminum wheels.
DToyota recommends the use of Toyota
genuine wheel bolts and wrench de-
signed for your aluminum wheels. Oth-
er bolts and wrenches of matching
quality can also be used.
DWhen balancing your wheels, Toyota
recommends the use of Toyota genuine
balance weights. Other balance weights
canalsobeused.
DAs with any wheel, periodically check
your aluminum wheels for damage. If
damaged, replace immediately.
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296SPECIFICATIONS
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):
0Q07
∗
4.4 (4.6, 3.9)
0Q01, 0Q02∗
4.0 (4.2, 3.5)
∗: The identification code are stamped on
the locations shown in the below il-
lustration.
MS81013
On the back side
Coolant type:
Your Toyota vehicle is filled with “Toyota
Super Long Life Coolant” at the factory.
In order to avoid technical problems,
only use “Toyota Super Long Life
Coolant” or similar high quality ethylene
glycol based non−silicate, non−amine,
non−nitrite, and non−borate coolant with
long−life hybrid organic acid technology.
(Coolant with long−life hybrid organic
acid technology is a combination of low
phosphates and organic acids.)
Do not use plain water alone.
BATTERY
Open voltage
∗at 20_C(68_F):
12.6—12.8 V Fully charged
12.2—12.4 V Half charged
11.8—12.0 V Discharged
∗: Voltage that is checked 20 minutes af-
ter the key is removed with all the
lights turned off
Charging rates:
5Amax.
CLUTCH
Pedal free play, mm (in.):
18—28 (0.7—1.1)
AYGO WE 99E37E11 02.18

SPECIFICATIONS301
Fuses (type A)
1. H−LP RH (HI) 10 A (with daytime
running light system):Right−hand
headlights
2. H−LP LH (HI) 10 A (with daytime run-
ning light system):Left−hand head-
lights, gauges and meters
3. H−LP RH (LO) 10 A (with daytime
running light system):Right−hand
headlights
4. H−LP LH (LO) 10 A (with daytime
running light system):Left−hand
headlights, gauges and meters
5. DIMMER 20 A (with daytime running
light system):“H−LP LH (HI)”, “H−LP
RH(HI)”, “H−LP LH (LO)”, “H−LP RH
(LO)” fuses, daytime running light sys-
tem
H−LP LH 10 A (without daytime run-
ning light system):Left−hand head-
lights
6. ABS NO.2 25 A (without vehicle sta-
bility controlsystem):Anti−lock brake
systemand vehicle stability control sys-
tem
VSC NO.2 30 A (with vehicle stability
control system):Anti−lock brake sys-
tem and vehicle stability control system
7.AM230A:Starting system, “IG1”,
“IG2”, “STA” fuses
8. HAZARD 10 A:Turn signal lights,
emergency flashers, gauges and meter-
s
9. H−LP RH 10 A (without daytime run-
ning light system):Right−hand head-
lights
10. DOME 15 A:Gauges and meters, inte-
rior light, audiosystem, tachometer
11 . E F I 1 5 A :Electric cooling fan, multi-
port fuel injection system/sequential
multiport fuel injection system
12. HORN 10 A:Horn
13. SPARE 7.5 A:Spare fuse
14. SPARE 10 A:Spare fuse15. SPARE 15 A:Spare fuse
16. STA 7.5 A:Multi−mode manual trans-
mission, multiport fuel injection system/
sequential multiport fuel injection
system
17. EFI NO.2 7.5 A:Multiport fuel injection
system/sequential multiport fuel injec-
tion system, multi−mode manual trans-
mission
18. STOP 10 A:Stop lights, high mounted
stoplight, anti−lock brake system, mul-
ti−mode manual transmission
19. D/L 25 A:Power door locksystem,
wireless remote control system
20. DEF 20 A:Rear window defogger
21. TAIL 7.5 A:Daytime running light sys-
tem, tail lights, license plate lights,
position lights, headlight beam level
control system, instrumentpanel lights
22. OBD 7.5 A:On−board diagnosis sys-
tem
23. ECU−B7.5A:Multi−mode manual
transmission, daytime running light sys-
tem, vehicle stability control system,
gauges and meters, rear fog light
24. ECU−IG 7.5 A:Anti−lock brake system,
vehicle stability control system, electric
power steering system, electric cooling
fan
25. BACK UP 10 A:Back−up lights, power
door locksystem, wireless remote con-
trol system, power windows, rear win-
dow defogger, tachometer, air condition-
ing system,heatersystem
26. WIP 20 A:Windshield wiper and wash-
er, rear window wiper and washer
27. ACC 15 A:Power outlet, audiosystem
AYGO WE 99E37E11 02.18

302SPECIFICATIONS
28. IG1 7.5 A:Windshield wiper and wash-
er, rear window wiper and washer,
anti−lock brake system, electric power
steering system, electric cooling fan,
back−up lights, power door lock sys-
tem, wireless remote control system,
power windows, rear window defogger,
tachometer, air conditioningsystem,
heatersystem
29.IG215A:Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, SRS airbag system,gauges
and meters, daytime running light sys-
tem, multi−mode manual transmission
30. A/C 7.5 A:Air conditioningsystem,
power heater
Fuses (type B)
31. AM1 40 A:“ACC”, “WIP”, “ECU−IG”,
“BACK UP” fuses
32. PWR 30 A:Power windows
33. HTR 40 A:Heater system, air condi-
tioning system, “A/C” fuse
34. AMT 50 A:Multi−mode manual trans-
mission
35. RADIATOR 30 A or 40 A
∗:Electric
cooling fan
∗:Replace the fuse with one of the same
ampere rating as the original.
36. ABS NO.1 40 A (without vehicle sta-
bility controlsystem):Anti−lock brake
system and vehicle stability control
system
VSC NO.1 50 A (with vehicle stability
control system):Anti−lock brake sys-
tem and vehicle stability control system
37. EMPS 50 A:Electric power steering
system
Fuse (type C)
38. ALTERNATOR 120 A:Charging sys-
tem, “EPS”, “ABS (without vehicle sta-
bility control system)”, “VSC (with ve-
hicle stability control system)”,
“RADIATOR”, “AM1”, “HTR”, “PWR”,
“D/L”, “DEF”, “TAIL”, “STOP”, “OBD”,
“ECU−B” fuses
AYGO WE 99E37E11 02.18

304INDEX
A
Adding washer fluid 282..................
Adjustment
Front seats 42.........................
Seat belts 48..........................
Air conditioning filter 184.................
Air conditioningsystem 175..............
Airbag manual on−off system 78..........
Airbags 55,62,68........................
Aluminum wheel precautions 275.........
Anti−glare inside rear view mirror 114.....
Anti−lock brake system warning
light 127..............................
Anti−theft steering column lock 138.......
Appearance care
Cleaning the interior 250...............
Protecting your Toyota from
corrosion 246.......................
Washing and waxing 247...............
Audio system 161.......................
Auxiliary catch, Engine hood 36..........
B
Back door 33............................
Battery
Checking battery condition 278.........
Gas caution 278.......................
Handling safety 278....................
Recharging precautions 280............
Winter driving tips 215.................
Before starting the engine 210............
Brake system 200.......................
Brake system warning light 127...........
Brakes
Parking 160...........................
Break−in tips 194........................
C
Carbon monoxide caution 198............
Charging system warning light 127........
Checking and replacing fuses 280........
Checking the engine oil level 264.........
Checking the radiator and
condenser 268........................
Child restraint
Child restraint system 81...............
Installation 90.........................Installation with ISOFIX rigid
anchor 109..........................
ISOFIX child restraint system 109.......
Precautions 80........................
Types of child restraint system 82.......
Using a top strap 106..................
Cleaning the interior 250.................
Clock 188...............................
Cold weather
Operation 215.........................
Compact disc player 162.................
Condenser
Checking the condenser 268...........
Controls, Instrument panel 2.............
Cooling system
Coolant level 267......................
Engine overheating 225................
Radiator 268..........................
Radiator and reservoir 267.............
Radiator cap 225......................
Winter driving tips 215.................
Corrosion prevention 246................
Cup holders 189.........................
D
Defogger
Rear window 121......................
Dimmer switch, Headlight 116............
Directional signals 116...................
Do−it−yourself maintenance
Service precautions 260...............
Does your vehicle need repairing? 255....
Doors
Side doors 28.........................
Driver ’s seat belt reminder buzzer 127....
Driver ’s seat belt reminder light 127.......
Driving
Driving tips 213,215....................
Manual transmission 156...............
Driving in the rain 214....................
Driving tips
Driving in the rain 214..................
Driving tips in various conditions 213....
Driving with a manual
transmission 156....................
Economical driving 216................
Good driving practice 156..............
Pre−trip safety check 211..............
Winter driving tips 215.................
AYGO WE 99E37E11 02.18