2003 TOYOTA MR2 SPYDER radiator cap

1662003 MR2 from Aug. ’03 Prod. (OM17511U)
If the engine speed does not increase with
the accelerator pedal depressed down to
about the middle position, there may be
a problem somewhere in your electronic
throttle control system.
At this time, if you depress the accelera-
tor pedal more firmly and slowly, you can
drive you vehicle at low speeds. Have
your vehicle checked by your Toyota deal-
er as soon as possible.
Even if the abnormality of the electronic
throttle control system is corrected during
low speed driving, the system may not be
recovered until the engine is stopped and
the ignition key is turned to ”ACC” or
”LOCK” position.
CAUTION
Be especially careful to prevent erro-
neous pedal operation.
If your vehicle overheats
If your engine coolant temperature
gauge indicates overheating, if you ex-
perience a loss of power, or if you hear
a loud knocking or pinging noise, the
engine has probably overheated. You
should follow this procedure...1. Pull safely off the road, stop the ve- hicle and turn on your emergency
flashers. Put the transmission in “N”
(sequential manual transmission) or in
neutral (manual transmission) and ap-
ply the parking brake. Turn off the air
conditioning if it is being used.
2. If coolant or steam is boiling out of the radiator or reservoir, stop the engine.
Wait until the steam subsides before
opening the hood. If there is no coolant
boiling over or steam, leave the engine
running and make sure the electric
cooling fan is operating. If it is not,
turn the ignition off.
CAUTION
To help avoid personal injury, keep
the hood closed until there is no
steam. Escaping steam or coolant is
a sign of very high pressure.
3. Look for obvious coolant leaks from theradiator, hoses, and under the vehicle.
However, note that water draining from
the air conditioning is normal if it has
been used.
CAUTION
When the engine is running, keep
hands and clothing away from the
moving fan and engine drive belts.
4. If the coolant is leaking, stop the en-gine immediately. Call a Toyota dealer
for assistance.
5. If there are no obvious leaks, check the coolant reservoir. If it is dry, add
coolant to the reservoir while the en-
gine is running. Fill it about half full.
CAUTION
Do not attempt to remove the coolant
reservoir cap or air release valve
when the engine and radiator are hot.
Serious injury could result from
scalding hot fluid and steam blown
out under pressure.
03 07.07
If you cannot incr ease the
engine speed

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

2082003 MR2 from Aug. ’03 Prod. (OM17511U)
Z72109
To ensure excellent lubrication
performance for your engine, “Toyota
Genuine Motor Oil” is available, which has
been specifically tested and approved for
all Toyota engines.
Please contact your Toyota dealer for
further details about “Toyota Genuine
Motor Oil”.Look at the seethrough coolant reser-
voir when the engine is cold. The cool-
ant level is satisfactory if it is between
the “FULL” and “LOW” lines on the
reservoir. If the level is low, add the
coolant. (For the coolant type, see
“Coolant type selection” described be-
low.)
The coolant level in the reservoir will vary
with engine temperature. However, if the
level is on or below the “LOW” line, add
coolant. Bring the level up to the “FULL”
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, drain cock and water
pump.
If you can find no leak, have your Toyota
dealer test the cap pressure and check
for leaks in the cooling system.
CAUTION
To prevent burning yourself, do not
remove the coolant reservoir cap or
air release valve when the engine is
hot.
Coolant type selection
Use of improper coolants may damage
your engine cooling system.
Only use “Toyota Super Long Life Coolant”
or similar high quality ethylene glycol
based nonsilicate, nonamine, nonnitrite,
and nonborate coolant with longlife hy-
brid organic acid technology. (Coolant with
longlife hybrid organic acid technology
consists of the combination of low phos-
phates and organic acids.)
“Toyota Super Long Life Coolant” is pre-
mixed with 50% coolant and 50% deion-
ized water. This coolant provides protec-
tion down to about 35
°C (31 °F).
NOTICE
Do not use plain water alone.
03 07.07
Checking the engine coolant
level

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

2512003 MR2 from Aug. ’03 Prod. (OM17511U)
MirrorsFolding rear view 66 . . . . . . . . . . . . . . . . . .
Outside rear view 64 . . . . . . . . . . . . . . . . .
Power rear view 65 . . . . . . . . . . . . . . . . . . .
N
New vehicle breakin 130
. . . . . . . . . . . . . . .
O
Odometer 75
. . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Consumption 134
. . . . . . . . . . . . . . . . . . . .
Power steering 210
. . . . . . . . . . . . . . . . . . .
Viscosity and grade 206,239
. . . . . . . . . .
Oil power steering 210
. . . . . . . . . . . . . . . . . .
Open door warning light 77
. . . . . . . . . . . . . .
Operation in foreign countries 132 . . . . . . .
Overheating, Engine 166
. . . . . . . . . . . . . . . .
Overheating, Engine coolant 74
. . . . . . . . . .
Overview Engine compartment 198
. . . . . . . . . . . . . .
Instrument cluster 4
. . . . . . . . . . . . . . . . . .
Instrument panel 2
. . . . . . . . . . . . . . . . . . .
P
Parking brake
Operation 97 . . . . . . . . . . . . . . . . . . . . . . . .
Reminder light 97 . . . . . . . . . . . . . . . . . . . .
Parking brake reminder light 77 . . . . . . . . . .
Parts and tools 203 . . . . . . . . . . . . . . . . . . . . . Passenger airbag manual
onoff switch 45 . . . . . . . . . . . . . . . . . . . . .
Passenger ’s seat belt reminder light 77 . . . . . . . . . . . . . . . . . . . . .
Polishing 185 . . . . . . . . . . . . . . . . . . . . . . . . . .
Power door lock switch 12 . . . . . . . . . . . . . .
Power rear view mirror control 65 . . . . . . . .
Power steering fluid level 210 . . . . . . . . . . .
Power window switches 13 . . . . . . . . . . . . . .
Power window lock switch 14 . . . . . . . . . . . .
Pretensioners (seat belt pretensioners) 35 . . . . . . . . . . .
Protecting your Toyota
from corrosion 184 . . . . . . . . . . . . . . . . . . .
R
Radiator
Coolant, Engine 208 . . . . . . . . . . . . . . . . . .
Rear view mirror, Antiglare inside 66 . . . . . . . . . . . . . . . . . .
Rear view mirror, Power controlled 65 . . . . . . . . . . . . . . . . . .
Rear view mirrors, Folding 66 . . . . . . . . . . .
Rear view mirrors, Outside 64 . . . . . . . . . . .
Rear window defogger switch 71 . . . . . . . . .
Reporting safety defects
for U.S. owners 246 . . . . . . . . . . . . . . . . . .
S
Seat adjustment precautions
Front seats 28 . . . . . . . . . . . . . . . . . . . . . . .
Seat belt extender 34 . . . . . . . . . . . . . . . . . . . Seat belts
Cleaning 188 . . . . . . . . . . . . . . . . . . . . . . . .
Fastening 31 . . . . . . . . . . . . . . . . . . . . . . . .
Seat belt precautions 31 . . . . . . . . . . . . . .
Seat belt pretensioners 35 . . . . . . . . . . . .
Seating capacity 149 . . . . . . . . . . . . . . . . . . .
Seats 28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sequential manual transmission Driving with a sequential manual transmission 85 . . . . . . . . . . .
Shift pattern 85 . . . . . . . . . . . . . . . . . . . . . .
Shifting speed 88 . . . . . . . . . . . . . . . . . . . .
Service and maintenance 192 . . . . . . . . . . .
Service reminder indicators 77 . . . . . . . . . .
Side door locks 11 . . . . . . . . . . . . . . . . . . . . .
Side vents 119 . . . . . . . . . . . . . . . . . . . . . . . . .
Soft top 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spare fuse 224 . . . . . . . . . . . . . . . . . . . . . . . .
Spare tire 169 . . . . . . . . . . . . . . . . . . . . . . . . .
Spark plugs lridiumtipped spark plugs 135 . . . . . . . .
Specifications 237 . . . . . . . . . . . . . . . . . . . . .
SRS driver and passenger airbags 37 . . . . . . . . . . . . . . . .
SRS warning light 77 . . . . . . . . . . . . . . . . . . .
Starting Cold weather 154 . . . . . . . . . . . . . . . . . . . .
Engine 154 . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump starting 163 . . . . . . . . . . . . . . . . . . . .
Steering Column lock 84 . . . . . . . . . . . . . . . . . . . . . .
Tilt steering wheel 64 . . . . . . . . . . . . . . . . .
Suspension and chassis 140 . . . . . . . . . . . .
03 07.07