engine LEXUS RX270 2014 Owners Manual

4Maintenance and care
451
RX350/270_EE
4-1. Maintenance and care
Cleaning and protecting
the vehicle exterior............. 452
Cleaning and protecting
the vehicle interior .............. 455
4-2. Maintenance
Maintenance
requirements ........................ 458
4-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions ............................ 461
Hood .......................................... 465
Positioning a floor jack.......... 466
Engine compartment ............ 468
Tires ........................................... 483
Tire inflation pressure ........... 495
Wheels ...................................... 497
Air conditioning filter............ 499
Electronic key battery ........... 501
Checking and replacing
fuses........................................ 504
Light bulbs ................................. 516
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4-2. Maintenance
4
Maintenance and care
RX350/270_EE
■Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus recommends
that maintenance service operations as well as other inspections and repairs be
carried out by authorized Lexus dealers or repairers or other duly qualified and
equipped professionals. For repairs and services covered by your warranty, please
visit an authorized Lexus dealer or repairer, who will use genuine Lexus parts in
repairing any difficulties you may encounter. There can also be advantages in utiliz-
ing authorized Lexus dealers or repairers for non-warranty repairs and services, as
members of the Lexus network will be able to expertly assist you with any difficulties
you may encounter.
Your Lexus dealer or repairer, or another duly qualified and equipped professional
will perform all of the scheduled maintenance on your vehicle reliably and econom-
ically due to their experience with Lexus vehicles.
■Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs that indi-
cate service is needed. Some important clues are:
●Engine missing, stumbling or pinging
●Appreciable loss of power
●Strange engine noises
●A fluid leak under the vehicle (However, water dripping from the air condition-
ing system after use is normal.)
●Change in exhaust sound (This may indicate a dangerous carbon monoxide
leak. Drive with the windows open and have the exhaust system checked imme-
diately.)
●Flat-looking tires, excessive tire squeal when cornering, uneven tire wear
●Vehicle pulls to one side when driving straight on a level road
●Strange noises related to suspension movement
●Loss of brake effectiveness, spongy feeling brake pedal, pedal almost touches
the floors, vehicle pulls to one side when braking
●Engine coolant temperature continually higher than normal
If you notice any of these clues, take your vehicle to any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional, as soon as possible.
Your vehicle may need adjustment or repair.
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461
4
Maintenance and care
RX350/270_EE
4-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct pro-
cedures as given in these sections.
ItemsParts and tools
Battery condition (→P. 4 7 9 )
•Warm water
• Baking soda
•Grease
•Conventional wrench
(for terminal clamp bolts)
• Distilled water
Engine coolant level (→P. 4 7 7 )
• “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. “Toyota
Super Long Life Coolant” is pre-
mixed with 50% coolant and 50%
deionized water.
• Funnel (used only for adding cool-
ant)
Engine oil level(→P. 4 7 2 )
• “Toyota Genuine Motor Oil” or
equivalent
•Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses (→P. 5 0 4 )• Fuse with same amperage rating as
original
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4-3. Do-it-yourself maintenance
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Maintenance and care
RX350/270_EE
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precaution:
■When working on the engine compartment
●Keep hands, clothing and tools away from the moving fans and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driv-
ing 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
corrosive sulfuric acid.
●Take care because brake fluid can harm your hands or eyes and damage painted
surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean water
immediately.
If you still experience discomfort, consult a doctor.
■When working near the electric cooling fans or radiator grille
Be sure the “ENGINE START STOP” switch is off.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fans may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (→P. 4 7 8 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in your eyes
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4-3. Do-it-yourself maintenance
RX350/270_EE
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.
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or
when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.
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4-3. Do-it-yourself maintenance
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Maintenance and care
RX350/270_EE
CAUTION
■When raising your vehicle
Make sure to observe the following precautions to reduce the possibility of death or
serious injury:
●When using a floor jack, follow the instructions of the manual provided with the
jack.
●Do not use the jack that was supplied with your vehicle.
●Do not put any part of your body underneath the vehicle when it is supported
only by the floor jack.
●Always use floor jack and/or automotive jack stands on a solid, flat, level surface.
●Do not start the engine while the vehicle is supported by the floor jack.
●Stop the vehicle on level, firm ground, firmly set the parking brake and shift the
shift lever to P.
●Make sure to set the floor jack properly at the jack point.
Raising the vehicle with an improperly positioned floor jack will damage the vehi-
cle and may cause the vehicle to fall off the floor jack.
●Do not raise the vehicle while someone is in the vehicle.
●When raising the vehicle, do not place any objects on top of or underneath the
floor jack.
●Vehicles with electronically modulated air suspension:
Be sure to turn off the height control and stop the engine. Otherwise, the vehicle
height may change due to the automatic leveling function. (→P. 2 5 6 )
●Lift up the vehicle using a floor jack such as
the one shown in the illustration.
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4-3. Do-it-yourself maintenance
RX350/270_EE
Engine compartment
RX270
Engine oil filler cap
(→P. 4 74 )
Engine oil level dipstick
(→P. 4 7 2 )
Battery (→P. 4 7 9 )
Fuse box (→P. 504)Engine coolant reservoir
(→P. 477)
Condenser (→P. 4 7 8 )
Radiator (→P. 4 7 8 )
Electric cooling fans
Washer fluid tank (→P. 4 8 2 )
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4-3. Do-it-yourself maintenance
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Maintenance and care
RX350/270_EE
RX350
Engine oil filler cap
(→P. 4 74 )
Engine oil level dipstick
(→P. 4 7 2 )
Battery (→P. 4 7 9 )
Fuse box (→P. 504)Engine coolant reservoir
(→P. 477)
Condenser (→P. 4 7 8 )
Radiator (→P. 4 7 8 )
Electric cooling fans
Washer fluid tank (→P. 4 8 2 )
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4-3. Do-it-yourself maintenance
RX350/270_EE
Engine compartment cover
■Removing the engine compartment covers
Outside
Front
■Installing the clips
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4-3. Do-it-yourself maintenance
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Maintenance and care
RX350/270_EE
Battery cover
Removing the battery cover
NOTICE
■After installing an engine compartment cover
Make sure that the cover is securely installed in its original position.
NOTICE
■When installing the battery cover
Securely install the cover over the battery. Failure to do so may cause water to enter
the engine compartment when it rains or the vehicle is washed, resulting in a mal-
function.
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