2003 TOYOTA MR2 SPYDER battery

2012003 MR2 from Aug. ’03 Prod. (OM17511U)
If you perform maintenance by yourself,
be sure to follow the correct procedure
given in this Section.
You should be aware that improper or in-
complete servicing may result in operating
problems.
Performing doityourself maintenance
during the warranty period may affect your
warranty coverage. Read the separate
Toyota Warranty statement for details and
suggestions.
This section gives instructions only for
those items that are relatively easy for an
owner to perform. As explained in Section
6, there are still a number of items that
must be done by a qualified technician
with special tools.
For information on tools and parts for do
ityourself maintenance, see “Parts and
tools” on page 203.
Utmost care should be taken when work-
ing on your vehicle to prevent accidental
injury. Here are a few precautions that
you should be especially careful to ob-
serve:CAUTION
When the engine is running, keep
hands, clothing, and tools away
from the moving fan and engine
drive belts. (Removing rings,
watches, and ties is advisable.)
Right after driving, the engine
compartment and trunk room—the
engine, radiator, exhaust manifold,
power steering fluid reservoir and
spark plug boots, etc.—will be hot.
So be careful not to touch them.
Oil, fluids and spark plugs may also
be hot.
If the engine is hot, do not remove
the coolant reservoir cap or air re-
lease valve or loosen the drain
plugs to prevent burning yourself.
Do not smoke, cause sparks or al-
low open flames around fuel or the
battery. Their fumes are flammable.
Do not get under your vehicle with
just the body jack supporting it. Al-
ways use automotive jack stands or
other solid supports.
Be sure that the ignition is off if
you work near the electric cooling
fans or radiator grille. With the
ignition on, the electric cooling fans
will automatically start to run if the
engine coolant temperature is high
and/or the air conditioning is on.
Use eye protection whenever you
work on or under your vehicle
where you may be exposed to flying
or falling material, fluid spray, etc.
Be extremely cautious when work-
ing on the battery. It contains poi-
sonous and corrosive sulfuric acid.
Warning: Battery posts, terminals
and related accessories contain lead
and lead compounds, chemicals
known to the State of California to
cause cancer and reproductive
harm. Wash hands after handling
Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as in-
flammation or skin cancer, so care
should be taken to avoid prolonged
and repeated contact with it. To re-
move used engine oil from your
skin, wash thoroughly with soap
and water.
03 07.07
Doityourself service
precautions

2022003 MR2 from Aug. ’03 Prod. (OM17511U)
Do not leave used oil within the
reach of children.
Dispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer or
a service station for information
concerning recycling or disposal.
Take care when filling the brake and
clutch fluid reservoirs because
brake fluid can harm your eyes and
damage painted surfaces. If fluid
gets in your eyes, flush your eyes
with clean water.
When racing the engine, make sure
that the gear position is in the “N”
position. In case the accelerator is
operated with the gear in any other
positions, the vehicle may move, re-
sulting in an unexpected accident.
NOTICE
Remember that battery and ignition
cables carry high currents or volt-
ages. Be careful of accidentally
causing a short circuit.
Add only “Toyota Super Long Life
Coolant” or similar high quality eth-
ylene glycol based nonsilicate,
nonamine, nonnitrite, and nonbo-
rate coolant with longlife hybrid
organic acid technology to fill the
radiator. And if you spill some of
the coolant, be sure to wash it off
with water to prevent it from dam-
aging the parts or paint.
 Do not allow dirt or anything else
to fall through the spark plug holes.
 Do not pry the outer electrode of a
spark plug against the center elec-
trode.
 Use only spark plugs of the speci-
fied type. Using other types will
cause engine damage, loss of per-
formance or radio noise.
 Do not reuse iridiumtipped spark
plugs by cleaning or regapping.
 Do not drive with the air cleaner
filter removed, or excessive engine
wear could result. Also backfiring
could cause a fire in the engine
compartment.
 Be careful not to scratch the glass
surface with the wiper frame.When closing the engine hood or
trunk, check to see that you have
not forgotten any tools, rags, etc.
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2032003 MR2 from Aug. ’03 Prod. (OM17511U)
Parts and tools
Here is a list of parts and tools you will
need to perform doityourself mainte-
nance. Remember all Toyota parts are de-
signed in metric sizes, so your tools must
be metric.
CHECKING THE ENGINE OIL LEVEL
Parts (if level is low):
“Toyota Genuine Motor Oil” or equiva-
lent
See page 206 in Section 72 for de-
tails about engine oil selection.
Tools:
Rag or paper towel
Funnel (only for adding oil)
CHECKING THE ENGINE COOLANT
LEVEL
Parts (if level is low):
“Toyota Super Long Life Coolant” or
similar high quality ethylene glycol
based nonsilicate, nonamine, nonni-
trite, and nonborate coolant with long
life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is
premixed with 50% coolant and 50%
deionized water.
Tools:
Funnel (only for adding coolant) CHECKING BRAKE FLUID
Parts (if level is low):
SAE J1703 or FMVSS No.116 DOT 3
brake fluid
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING POWER STEERING FLUID
Parts (if level is low):
Toyota P.S fluid EH or equivalent
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING BATTERY CONDITION
Tools:
Warm water
Baking soda
Grease
Conventional wrench (for terminal
clamp bolts)
CHECKING AND REPLACING FUSES
Parts (if replacement is necessary):
Genuine Toyota fuse or equivalent with
same amperage rating as original ADDING WASHER FLUID
Parts:
Water
Washer fluid containing antifreeze
(for winter use)
Tools:
Funnel
REPLACING LIGHT BULBS
Parts:
Bulb with same number and wattage
rating as original (See charts in
“Replacing light bulbs—” on page 226
in Section 73.)
Tools:
Screwdriver
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2212003 MR2 from Aug. ’03 Prod. (OM17511U)
DOITYOURSELF MAINTENANCE
Electrical components
Checking battery condition222
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Battery recharging precautions 223
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing fuses 224
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid 225
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. . . . .
Replacing light bulbs 226
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. . . .
03 07.07
SECTION 7 3

2222003 MR2 from Aug. ’03 Prod. (OM17511U)
CAUTION
BATTERY PRECAUTIONS
The battery produces flammable and
explosive hydrogen gas.
Do not cause a spark from the bat-
tery with tools.
Do not smoke or light a match near
the battery.
The electrolyte contains poisonous
and corrosive sulfuric acid.
Avoid contact with eyes, skin or
clothes.
Never ingest electrolyte.
Wear protective safety glasses when
working near the battery.
Keep children away from the bat-
tery.
EMERGENCY MEASURES
If electrolyte gets in your eyes,
flush your eyes with clean water
immediately and get immediate
medical attention. If possible, con-
tinue to apply water with a sponge
or cloth while en route to the medi-
cal office.
If electrolyte gets on your skin,
thoroughly wash the contact area. If
you feel pain or burning, get medi-
cal attention immediately.
If electrolyte gets on your clothes,
there is a possibility of its soaking
through to your skin, so immediate-
ly take off the exposed clothing and
follow the procedure above, if nec-
essary.
If you accidentally swallow electro-
lyte, drink a large quantity of water
or milk. Follow with milk of magne-
sia, beaten raw egg or vegetable
oil. Then go immediately for emer-
gency help.
Warning: Battery posts, terminals and
related accessories contain lead and
lead compounds, chemicals known to
the State of California to cause can-
cer and reproductive harm. Wash
hands after handling.
—Checking battery exterior
SB73076
TerminalsGround
cable Holddown clamp
Check the battery for corroded or loose
terminal connections, cracks, or loose
holddown clamp.
a. If the battery is corroded, wash it off with a solution of warm water and bak-
ing soda. Coat the outside of the termi-
nals with grease to prevent further cor-
rosion.
b. If the terminal connections are loose, tighten their clamp nuts—but do not
overtighten.
c. Tighten the holddown clamp only enough to keep the battery firmly in
place. Overtightening may damage the
battery case.
03 07.07
Checking battery c ondition—
—Precautions

2232003 MR2 from Aug. ’03 Prod. (OM17511U)
NOTICE
Be sure the engine and all accesso-
ries are off before performing main-
tenance.
 When checking the battery, remove
the ground cable from the negative
terminal (“” mark) first and rein-
stall it last.
 Be careful not to cause a short cir-
cuit with tools.
 Take care no solution gets into the
battery when washing it.
—Checking battery c ondition
Z73001
Ty p e A
Ty p e BGreen Dark
Clear or
light yellow
Blue White Red
CHECKING BY INDICATOR
Check the battery condition by the indi-
cator color. Indicator color
ConditionTy p e ATy p e B
GreenBlueGood
DarkWhite
Charging
necessary. Have
battery checked
by your Toyota
dealer.
Clear orlight
yellow
Red
Have battery
checked by your
Toyota dealer.
Battery recharging precautions
During recharging, the battery is pro-
ducing hydrogen gas.
Therefore, before recharging:
1. If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.
2. Be sure the power switch on the re- charger is off when connecting the
charger cables to the battery and when
disconnecting them.
CAUTION
Always charge the battery in an un-
confined area. Do not charge the
battery in a garage or closed room
where there is not sufficient ventila-
tion.
Only do a slow charge (5 A or
less). Charging at a quicker rate is
dangerous. The battery may explode
causing personal injuries.
NOTICE
Never recharge the battery while the
engine is running. Also, be sure all
accessories are turned off.
03 07.07

2402003 MR2 from Aug. ’03 Prod. (OM17511U)
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):10.4 (11.0, 9.2)
Coolant type: “Toyota Super Long Life Coolant” is
filled in your Toyota vehicle at factory
fill. In order to avoid technical problems,
only use “Toyota Super Long Life
Coolant” or similar high quality ethylene
glycol based nonsilicate, nonamine,
nonnitrite, and nonborate coolant with
longlife hybrid organic acid technology.
Do not use plain water alone.
Please contact your Toyota dealer for
further details.
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:
5 A max. CLUTCH (manual transmission only)
Pedal free play, mm (in.):
5—15 (0.2—0.6)
Fluid type: SAE J1703 or FMVSS No.116 DOT 3
MANUAL TRANSAXLE
Oil capacity, L (qt., Imp. qt.): Vehicle with limitedslip differential
1.8 (1.9, 1.6)
Vehicle without limitedslip differential 1.9 (2.0, 1.7)
Oil type: Gear oil API GL4 or GL5
Recommended oil viscosity: SAE 75W90
SEQUENTIAL MANUAL TRANSAXLE
Oil capacity, L (qt., Imp. qt.): Vehicle with limitedslip differential2.1 (2.2, 1.8)
Vehicle without limitedslip differential
2.3 (2.4, 2.0)
Oil type: Gear oil API GL4 or GL5
Recommended oil viscosity: SAE 75W90 SEQUENTIAL MANUAL TRANSMISSION
SYSTEM
Fluid type:
Sequential M/T Fluid or equivalent
NOTICE: Using Fluid other than Toyota
Genuine Sequential M/T Fluid may
cause deterioration in shift performance
and durability, and ultimately damage
the sequential manual transmission of
your vehicle.
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2482003 MR2 from Aug. ’03 Prod. (OM17511U)
A
Adding washer fluid225
. . . . . . . . . . . . . . . .
Adjustment
Seats 30
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat belt 31
. . . . . . . . . . . . . . . . . . . . . . . . .
Air conditioning system 113
. . . . . . . . . . . . .
Airbags 37
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aluminum wheel precautions 219 . . . . . . . .
Antiglare inside rear view mirror 66 . . . . .
Antilock brake system warning light 77
. . . . . . . . . . . . . . . . . . . . . .
Antitheft steering column lock 84 . . . . . . .
Appearance care Cleaning the interior 188
. . . . . . . . . . . . . .
Protecting your Toyota from
corrosion 184
. . . . . . . . . . . . . . . . . . . . . .
Washing and waxing 185
. . . . . . . . . . . . . .
Auxiliary box 124
. . . . . . . . . . . . . . . . . . . . . .
Auxiliary catch, Trunk lid 15
. . . . . . . . . . . . .
B
Battery
Checking battery condition 222 . . . . . . . .
Gas caution 222 . . . . . . . . . . . . . . . . . . . . .
Handling safety 222 . . . . . . . . . . . . . . . . . .
Recharging precautions 223 . . . . . . . . . . .
Winter driving tips 156 . . . . . . . . . . . . . . . .
Before starting the engine 154 . . . . . . . . . . .
Brake pad wear limit indicators 138 . . . . . .
Brake system 135 . . . . . . . . . . . . . . . . . . . . . .
Brake system warning light 77 . . . . . . . . . . Brakes
Fluid level 209 . . . . . . . . . . . . . . . . . . . . . . .
Pad wear limit indicators 138 . . . . . . . . . .
Parking 97 . . . . . . . . . . . . . . . . . . . . . . . . . .
Breakin tips 130 . . . . . . . . . . . . . . . . . . . . . .
Brightness control 70 . . . . . . . . . . . . . . . . . . .
C
Car audio system 101
. . . . . . . . . . . . . . . . . .
Carbon monoxide caution 133
. . . . . . . . . . .
Cargo and luggage Capacity 149
. . . . . . . . . . . . . . . . . . . . . . . .
Distribution 150
. . . . . . . . . . . . . . . . . . . . . .
Stowage precautions 149
. . . . . . . . . . . . .
Cassette player 102
. . . . . . . . . . . . . . . . . . . .
Checking and replacing fuses 224 . . . . . . . .
Checking and replacing tires 213 . . . . . . . .
Checking brake fluid 209
. . . . . . . . . . . . . . . .
Checking the engine oil level 206 . . . . . . . .
Checking power steering fluid 210 . . . . . . .
Child restraint Child restraint system 47
. . . . . . . . . . . . .
Installation with seat belt 49
. . . . . . . . . . .
Precautions 46
. . . . . . . . . . . . . . . . . . . . . .
Types of child restraint system 48 . . . . . .
Cigarette lighter and ashtray 122
. . . . . . . . .
Cleaning the interior 188
. . . . . . . . . . . . . . . .
Clock 122
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cold weather operation 156
. . . . . . . . . . . . .
Compact disc player 102
. . . . . . . . . . . . . . . .
Cooling system Coolant level 208
. . . . . . . . . . . . . . . . . . . . Engine overheating
166
. . . . . . . . . . . . . . .
Radiator and condenser 209
. . . . . . . . . . .
Radiator and reservoir 208
. . . . . . . . . . . .
Radiator cap 166
. . . . . . . . . . . . . . . . . . . . .
Winter driving tips 156
. . . . . . . . . . . . . . . .
Corrosion prevention 184
. . . . . . . . . . . . . . .
Cruise control 98
. . . . . . . . . . . . . . . . . . . . . .
Cup holders 127
. . . . . . . . . . . . . . . . . . . . . . . D
Defogger, Rear window 71
. . . . . . . . . . . . . .
Dimensions and weight 238
. . . . . . . . . . . . .
Dimmer switch, Headlight 68
. . . . . . . . . . . .
Dinghy towing 157
. . . . . . . . . . . . . . . . . . . . .
Directional signals 68
. . . . . . . . . . . . . . . . . .
Discharge warning light 77
. . . . . . . . . . . . . .
Doityourself maintenance
Parts and tools 203
. . . . . . . . . . . . . . . . . . .
Service precautions 201
. . . . . . . . . . . . . .
Does your vehicle need
repairing? 195
. . . . . . . . . . . . . . . . . . . . . . .
Driver ’s seat belt light 77
. . . . . . . . . . . . . . .
Driver ’s seat belt reminder buzzer 77 . . . . .
Driving Driving tips 155,156
. . . . . . . . . . . . . . . . . .
Manual transmission 96
. . . . . . . . . . . . . .
Sequential manual transmission 85 . . . .
Driving tips Driving tips in various
conditions 155
. . . . . . . . . . . . . . . . . . . . .
Driving with a manual transmission 96
. . . . . . . . . . . . . . . . . . . .
03 07.07