intercooler coolant LEXUS RC200T 2016 Owners Manual

4757-2. Maintenance
7
Maintenance and care
RC350_RC300_RC200t_RC F_U (OM24671U)
General maintenance
Listed below are the general maintenance items that should be performed at
the intervals specified in the “Warranty and Service Guide” or “Owner’s
Manual Supplement”. It is recommended that any problem you notice should
be brought to the attention of your Lexu s dealer or qualified service shop for
advice.
Engine compartment
ItemsCheck points
BatteryCheck the indicator (if equipped) and connections. ( P. 4 9 7 )
Brake fluidIs the brake fluid at the correct level? ( P. 4 9 6 )
Engine/intercooler coolantIs the engine/intercooler coolant at the correct level?
( P. 4 9 3 )
Engine oilIs the engine oil at the correct level? ( P. 488)
Exhaust systemThere should not be any fumes or strange sounds.
Radiator, condenser and
intercooler radiatorThe radiator, condenser and intercooler radiator
should be free from foreign objects. ( P. 4 9 5 )
Wa s h e r f l u i dIs there sufficient washer fluid? ( P. 5 0 0 )

479
RC350_RC300_RC200t_RC F_U (OM24671U)
7
Maintenance and care
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct proce-
dure as given in these sections.
ItemsPa r t s a n d t o o l s
Battery condition
( P. 4 9 7 )•Warm water• Baking soda•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
( P. 4 9 6 )• SAE J1703 or FMVSS No.116 DOT 3 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/intercooler
coolant level
( P. 4 9 3 )
• “Toyota Super Long Life Coolant” or a similar high quality
ethylene glycol-based non-silicate, non-amine, non-nitrite
and non-borate coolant with long-life hybrid organic acid
technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with 50%
coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is pre-mixed with 55%
coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
( P. 4 8 8 )
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses
( P. 5 1 9 )• Fuse with same amperage rating as original
Light bulbs
( P. 522)
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver•Flathead screwdriver
•Wrench
Radiator, condenser
and intercooler radi-
ator ( P. 4 9 5 )

Tire inflation pres-
sure ( P. 5 1 0 )• Tire pressure gauge• Compressed air source
Wa s h e r f l u i d
( P. 500)• Water or washer fluid containi ng antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

4867-3. Do-it-yourself maintenance
RC350_RC300_RC200t_RC F_U (OM24671U)
RC200t
Fuse boxes ( P. 5 1 9 )
Battery ( P. 4 9 7 )
Engine oil level dipstick (P. 4 8 8 )
Engine oil filler cap ( P. 4 9 0 )
Engine coolant reservoir (P. 4 9 3 )
Brake fluid reservoir ( P. 4 9 6 ) Wa s h e r f l u i d t a n k (
P. 5 0 0 )
Electric cooling fans
Condenser ( P. 4 9 5 )
Intercooler radiator ( P. 4 9 3 )
Radiator ( P. 4 9 5 )
Intercooler coolant reservoir (P. 4 9 5 )1
2
3
4
5
6
7
8
9
10
11
12

4947-3. Do-it-yourself maintenance
RC350_RC300_RC200t_RC F_U (OM24671U)
■Intercooler coolant reservoir (RC200t only)
The coolant level is satisfactory if it is between the “F” and “L” lines on the res-
ervoir when the engine is cold. Reservoir cap
“F” line
“L” line
If the level is on or below the “L” line,
add coolant up to the “F” line.
( P. 6 0 8 )
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid
organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is a mixt ure of 50% coolant and 50% deionized water.
(Minimum temperature: -31 F [-35 C])
Canada:
“Toyota Super Long Life Coolant” is a mixt ure of 55% coolant and 45% deionized water.
(Minimum temperature: -44 F [-42 C])
For more details about engine coolant, contact your Lexus dealer.
■If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine and intercooler coolant reservoir caps, drain
cock and water pump.
If you cannot find a leak, have your Lexus dealer test the cap and check for leaks in the
cooling system.
1
2
3

4957-3. Do-it-yourself maintenance
7
Maintenance and care
RC350_RC300_RC200t_RC F_U (OM24671U)
Check the radiator, condenser and intercooler radiator and clear away any for-
eign objects.
If any of the above parts are extremely dirty or you are not sure of their condition,
have your vehicle inspected by your Lexus dealer.
WA R N I N G
■When the engine is hot (RC350/RC300/RC200t)
Do not remove the engine coolant reservoir cap, intercooler coolant reservoir cap and
radiator cap. ( P. 6 1 2 )
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing serious injuries, such as burns.
■When the engine is hot (RC F)
Do not remove the engine coolant reservoir cap. ( P. 6 1 2 )
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water and
antifreeze must be used to provide proper lubrication, corrosion protection and cool-
ing. Be sure to read the antifreeze or coolant label.
■If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.
Radiator, condenser and intercooler radiator (if equipped)
WA R N I N G
■When the engine is hot
Do not touch the radiator, condenser or intercooler as they may be hot and cause seri-
ous injuries, such as burns.

6108-2. Steps to take in an emergency
RC350_RC300_RC200t_RC F_U (OM24671U)
The coolant level is satisfactory if it is between the full (“FULL” or “F”) and low
(“LOW” or “L”) lines on the reservoir.
Reservoir
“FULL” or “F”
“LOW” or “L”4
1
2
3
Engine (RC350/RC300)Engine (RC200t)
Engine (RC F)Intercooler (RC200t)

6118-2. Steps to take in an emergency
8
When trouble arises
RC350_RC300_RC200t_RC F_U (OM24671U)
Add coolant if necessary.
Water can be used in an emergency if coolant is unavailable.
Start the engine and turn the air conditioning system on to check that the radi-
ator cooling fans operate and to check for coolant leaks from the radiator or
hoses.
The fans operate when the air conditioning system is turned on immediately after a
cold start. Confirm that the fans are oper ating by checking the fan sound and air flow.
If it is difficult to check th ese, turn the air conditioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately and contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.
5
Engine (RC350/RC300)Engine (RC200t)
Engine (RC F)Intercooler (RC200t)
6
7

6128-2. Steps to take in an emergency
RC350_RC300_RC200t_RC F_U (OM24671U)
WA R N I N G
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the hood, do not open the hood until the steam
has subsided. The engine compartment may be very hot.
●Keep hands and clothing (especially a tie, a scarf or a muffler) away from the fans and
belts. Failure to do so may cause the hands or clothing to be caught, resulting in seri-
ous injury.
●RC350/RC300: While the engine and radi-
ator are hot, do not loosen or remove the
coolant reservoir cap or radiator cap. (The
radiator cap is located under the engine
cover.)
High temperature steam or coolant could
spray out.
●RC200t: While the engine and radiators are
hot, do not loosen or remove the coolant res-
ervoir cap, radiator cap, or intercooler cool-
ant reservoir cap.
High temperature steam or coolant could
spray out.
●RC F: While the engine and radiator are hot,
do not loosen or remove the coolant reser-
voir cap.
High temperature steam or coolant could
spray out.

6269-1. Specifications
RC350_RC300_RC200t_RC F_U (OM24671U)
■Spark plug
Cooling system
Capacity
RC350/
RC30010.1 qt. (9.6 L, 8.4 Imp. qt.)
RC200t
Gasoline engine
8.5 qt. (8.0 L, 7.0 Imp. qt.)
Intercooler
3.3 qt. (3.1 L, 2.7 Imp. qt.)
RC F12.3 qt. (11.6 L, 10.2 Imp. qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili- cate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system
RC350/RC300RC200tRC F
MakeDENSO
FK20HBR11NGK DILFR7K9GDENSO
FK20HBR-J8
Gap0.043 in. (1.1 mm)0.035 in. (0.9 mm)0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
Battery
Open voltage at 68F
(20 C):12.6  12.8 V Fully charged
12.2
 12.4 V Half charged
11.8
 12.0 V Discharged
(Check the voltage 20 minutes after the engine and all
lights are turned off.)
Charging rates5 A max.

688Alphabetical index
RC350_RC300_RC200t_RC F_U (OM24671U)
I/M test ..................................................... 478
IdentificationEngine ..................................................... 620
Vehicle ..................................................... 619
Ignition switch (engine switch)..........199
Illuminated entry system .................... 434
Immobilizer system ..................................76
Indicators .................................................... 87
Initialization Maintenance.............................. 473, 491
Meter................................................. 110, 122
Moon roof ...............................................179
Multi-information display ........ 110, 122
Power windows ................................... 175
Tire pressure warning system............................... 502
Initiators (tire pressure warning system).................................508
Inside rear view mirror .........................169
Instrument panel light control............................................. 96, 103
Intercooler............................................... 495
Intercooler coolant .............................. 493 Capacity .................................................626
Checking................................................493
Preparing and checking before winter ................................... 320
Interior lights........................................... 433
Intuitive parking assist......................... 259 Jack
Positioning a floor jack.................... 482
Vehicle-equipped jack ...... 570, 584
Jack handle ..................................570, 584
Jam protection function Front seats ...............................................156
Moon roof ............................................... 179
Power windows.................................... 175
Keyless entry Smart access system with push-button start..........137, 143
Wireless remote control........137, 143
Keys ............................................................. 132 Battery-saving function ................... 150
Electronic key ........................................ 132
Engine switch ........................................199
If the electronic key does not operate properly ....... 600
Key number plate ................................ 132
Keyless entry .......................................... 132
Mechanical key..................................... 133
Replacing the battery ........................ 517
Warning buzzer.................................. 138
Wireless remote control.................. 132
Knee airbags ............................................. 40
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