2011 TOYOTA AYGO Owners Manual

DO−IT−YOURSELF MAINTENANCE: Engine and Chassis263
Section 7−2
DO−IT−YOURSELF MAINTENANCE
Engine and Chassis
DChecking the engine oil level 264........................
DChecking the engine coolant level 267...................
DChecking the radiator and condenser 268................
DChecking the clutch pedal free play 269..................
DChecking tire inflation pressure 269.....................
DChecking and replacing tires 270........................
DRotating tires 272......................................
DInstalling snow tires and chains 273.....................
DReplacing wheels 275..................................
DAluminum wheel precautions 275.......................
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264DO−IT−YOURSELF MAINTENANCE: Engine and Chassis
Checking the engine oil level
MS72006a
Low level Full level
Add oil O.K. Too full
With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick.
1. To get a correct reading, the vehicle
should be on level ground. After turning
off the engine, wait more than 5 min-
utes for the oil to drain back into the
bottom of the engine.
2. Pull the dipstick out, hold a rag under
the end and wipe it clean.
3. Reinsert the dipstick—push it in as far
as it will go, or the reading will not be
correct.
4. Pull the dipstick out and look at the oil
level while holding a rag under the
end.
CAUTION
Be careful not to touch the hot ex-
haust manifold.
NOTICE
Be careful not to drop engine oil on
the vehicle components.
If the oil level is below or only slightly
above the low level, add engine oil of
the same type as already in the engine.
Remove the oil filler cap and add engine
oil in small quantities at a time, checking
the dipstick. We recommend that you use
a funnel when adding oil.
The approximate quantity of oil needed to
raise the level between low and full on the
dipstick is indicated as follows:
1.5L(1.6 qt.,1.3 Imp. qt.)
For the engine oil capacity, see “Service
specifications” on page 294 in Section 8.
When the level reaches within the correct
range, install the filler cap hand−tight.
NOTICE
zBe careful not to spill engine oil on
the vehicle components.
zAvoid overfilling, or the engine
could be damaged.
zCheck the oil level on the dipstick
once again after adding the oil.
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DO−IT−YOURSELF MAINTENANCE: Engine and Chassis265
ENGINE OIL SELECTION
Your Toyota vehicle is filled with “Toyota
Genuine Motor Oil” at the factory. Toyota
recommends the use of approved “Toyota
Genuine Motor Oil”. Another motor oil of
matching quality can also be used.
Oil grade:
0W−20, 5W−20, 5W−30 and10W−30:
API grade SL “Energy−Conserving”,
SM “Energy−Conserving” or ILSAC
multigrade engine oil
15W−40 and 20W−50:
API grade SL or SM multigrade engine
oil
Recommended viscosity (SAE):
SOIL35
Temperature range anticipated before
next oil change.
Preferred
SAE 0W−20 is filled into your Toyota
vehicle at manufacturing, and the best
choice for good fuel economy and good
starting in cold weather.
If SAE 0W−20 oil is not available, SAE
5W−30 oil may be used. However, it
should be replaced with SAE 0W−20 at
the next oil change.
If you use SAE10W−30 or a higher
viscosity engine oil in extremely low
temperatures, the engine may become
difficult to start, so SAE 5W−30 or low-
er viscosity engine oil is recommended.
The 0W portion of the oil viscosity rating
indicates the characteristic of the oil which
allows cold startability. Oils with a lower
value before the W allow for easier
starting of the engine in cold weather.
The20in0W−20 indicates the oil
viscosity when the oil is at its operating
temperature. An oil with a higher viscosity
may be better suited if the vehicle is
operated at high speeds, or under extreme
load conditions.
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266DO−IT−YOURSELF MAINTENANCE: Engine and Chassis
How to read oil container labels
Either or both API registered marks are
added to some oil containers to help you
select the oil you should use.
SOIL24
API Service Symbol
Top portion: The oil quality designation by
API (American Petroleum Institute) (SM)
Center portion: The SAE viscosity grade
(SAE 0W−20)
Lower portion: “Energy−Conserving” means
that the oil has fuel−saving capabilities.
ILSAC Certification Mark
The ILSAC (International Lubricant Stan-
dardization and Approval Committee) Certi-
fication Mark is displayed on the front of
the container.
Z72109
To ensure excellent lubrication perfor-
mance for your engine, Toyota recom-
mends the use of “Toyota Genuine Motor
Oil”, which has been specifically tested
and approved for all Toyota engines.
Please contact any authorized Toyota
dealer or repairer for further details about
“Toyota Genuine Motor Oil”. Other Motor
oils of matching quality can also be used.
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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.
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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.
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Checking the radiator and
condenser

DO−IT−YOURSELF MAINTENANCE: Engine and Chassis269
MS72008
Pedal
height
Pedal free play
Check the pedal free play.
Ifthefreeplayislessthan5mm(0.19
in.), take your vehicle to any authorized
Toyota dealer or repairer, or another duly
qualified professional to adjust the clutch
pedal free play.Keep your tire inflation pressures at the
proper level.
The recommended cold tire inflation pres-
sures and tire sizes are given on page
299 in Section 8.
You should check the tire inflation pres-
sure every two weeks, or at least once a
month. And do not forget the spare!
Incorrect tire inflation pressure may waste
fuel, reduce the comfort of driving, reduce
tire life and make your vehicle less safe
to drive.
If a tire frequently needs refilling, have it
checked by any authorized Toyota dealer
or repairer, or another duly qualified and
equipped professional.
The following instructions for checking
tire inflation pressure should be ob-
served:
DThe pressure should be checked only
when the tires are cold.If your ve-
hicle has been parked for at least 3
hours and has not been driven for
more than1.5 km or1mile since, you
will get an accurate cold tire inflation
pressure reading.
DAlways use a tire pressure gauge.
The appearance of a tire can be mis-
leading. Besides, tire inflation pres-
sures that are even just a few pounds
off can degrade ride and handling.
DDo not bleed or reduce tire inflation
pressure after driving.It is normal for
the tire inflation pressure to be higher
after driving.
DBe sure to reinstall the tire valve
caps.Without the valve caps, dirt or
moisture could get into the valve core
and cause air leakage. If the caps
have been lost, have new ones put on
as soon as possible.
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Checking the clutch pedal
free playChecking tire inflation
pressure

270DO−IT−YOURSELF MAINTENANCE: Engine and Chassis
CAUTION
Keep your tires properly inflated.
Otherwise, the following conditions
may occur and cause an accident re-
sulting in death or serious injuries.
Low tire pressure (underinflation)—
DExcessive wear
DUneven wear
DPoor handling
DPossibility of blowouts from an
overheated tire
DPoor sealing of the tire beads
DWheel deformation and/or tire sepa-
ration
DA greater possibility of tire damage
from road hazards
High tire pressure (overinflation)—
DPoor handling
DExcessive wear
DUneven wear
DA greater possibility of tire damage
from road hazards
Checking and replacing tires
72A008
Treadwear indicator
CHECKING YOUR TIRES
Check the tire’s tread for treadwear in-
dicators. If the indicators show, replace
the tires. The location of treadwear in-
dicators is shown by the “TWI” or “∆”
marks, etc., molded on the sidewall of
each tire.
The tires on your Toyota have built−in
treadwear indicators to help you know
when the tires need replacement. When
the tread depth wears to1.6 mm (0.06
in.) or less, the indicators will appear. If
you can see the indicators in two or more
adjacent grooves, the tire should be re-
placed. The lower the tread, the higher
the risk of skidding.
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