2016 Lexus GS350 engine

387
GS350_200t_GS F_OM_OM30E86U_(U)6-2. Maintenance
6
Maintenance and care
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 recommende
d 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 battery fluid level and connections.
(  P. 4 1 0 )
Brake fluidIs the brake fluid at the correct level? ( P. 4 0 9 )
Engine coolantIs the engine coolant at the correct level?
( P. 4 0 6 )
Engine oilIs the engine oil at the correct level? ( P. 4 0 1 )
Exhaust systemThere should not be any fumes or strange sounds.
Radiator/condenserThe radiator and condenser should be free from for-
eign objects. (P. 4 0 8 )
Wa s h e r f l u i dIs there sufficient washer fluid? ( P. 4 1 2 )

GS350_200t_GS F_OM_OM30E86U_(U)
3896-2. Maintenance
6
Maintenance and care
Vehicle exterior
ItemsCheck points
Doors/trunk• Do the doors/trunk operate smoothly?
Engine hood• Does the engine hood lock system work prop-erly?
Fluid leaks• There should not be any signs of fluid leakageafter the vehicle has been parked.
Ti r e s
• Is the tire inflation pressure correct?
• The tires should not be damaged or excessively
worn.
• Have the tires been rotated according to the
maintenance schedule?
• The wheel nuts should not be loose.
Windshield wipers
• The wiper blades should not show any signs of cracking, splitting, wear, contamination or defor-
mation.
• The wiper blades should clear the windshield without streaking or skipping.
WA R N I N G
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation before performing
maintenance checks.

391
GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
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 1 0 )•Warm water• Baking soda•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
( P. 4 0 9 )
• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/intercooler
coolant level
( P. 4 0 6 )
•“To y o t a 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 0 1 )
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 4 3 1 )• Fuse with same amperage rating as original
Headlight aim
( P. 4 3 5 )• Phillips-head screwdriver
Light bulbs
( P. 4 3 7 )
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver•Flathead screwdriver
•Wrench
Radiator and con-
denser ( P. 4 0 8 )
Tire inflation pres-
sure ( P. 422)• Tire pressure gauge• Compressed air source
Wa s h e r f l u i d
( P. 4 1 2 )• Water or washer fluid containi ng antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

392
GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
WA R N I N G
The engine compartment contains many mechanisms and fluids that may move suddenly,
become hot, or become electrically energized. To avoid death or serious injury, observe
the following precautions.
■When working on the engine compartment
●Keep hands, clothing and tools away from
the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driving
as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel and
battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and corro-
sive sulfuric acid.
■When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant temperature is high.
(  P. 4 0 8 )
■Safety glasses
Wear safety glasses to prevent flying or fallin g material, fluid spray, etc. from getting in
your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt
in the air.

396
GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
Engine compartment
GS350
Fuse boxes (
P. 4 3 1 )
Battery ( P. 4 1 0 )
Engine oil level dipstick (P. 4 0 1 )
Engine coolant reservoir (P. 4 0 6 )
Engine oil filler cap ( P. 4 0 3 ) Brake fluid reservoir
(P. 4 0 9 )
Wa s h e r f l u i d t a n k ( P. 4 1 2 )
Electric cooling fans
Condenser ( P. 4 0 8 )
Radiator ( P. 4 0 8 )1
2
3
4
5
6
7
8
9
10

GS350_200t_GS F_OM_OM30E86U_(U)
3976-3. Do-it-yourself maintenance
6
Maintenance and care
GS200t
Fuse boxes (P. 4 3 1 )
Battery ( P. 4 1 0 )
Intercooler coolant reservoir (P. 4 0 6 )
Engine oil level dipstick (P. 4 0 1 )
Engine oil filler cap ( P. 4 0 3 ) Engine coolant reservoir
(P. 4 0 6 )
Brake fluid reservoir (P. 4 0 9 )
Wa s h e r f l u i d t a n k ( P. 4 1 2 )
Condenser ( P. 4 0 8 )
Electric cooling fans
Radiator ( P. 4 0 8 )1
2
3
4
5
6
7
8
9
10
11

398
GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
GS F
Fuse boxes (
P. 4 3 1 )
Battery ( P. 4 1 0 )
Engine oil level dipstick (P. 4 0 1 )
Engine coolant reservoir (P. 4 0 6 )
Engine oil filler cap ( P. 4 0 3 ) Brake fluid reservoir
(P. 4 0 9 )
Wa s h e r f l u i d t a n k ( P. 4 1 2 )
Electric cooling fans
Condenser ( P. 4 0 8 )
Radiator ( P. 4 0 8 )1
2
3
4
5
6
7
8
9
10

GS350_200t_GS F_OM_OM30E86U_(U)
3996-3. Do-it-yourself maintenance
6
Maintenance and care
■Removing the engine compartment cover
GS350/GS200t (Right-hand side)
GS350/GS200t (Center)
GS F
Engine compartment cover