engine Acura RLX HYBRID 2019 Repair Manual

506
uuMaintenance Under the Hood uAdding Engine Oil
Maintenance
Adding Engine Oil
1. Unscrew and remove the engine oil fill cap.
2. Add oil slowly.
3. Reinstall the engine oil fill cap, and tighten
it securely.
4. Wait for three minutes and recheck the
engine oil dipstick.1Adding Engine Oil
NOTICE
Do not fill the engine oil above the upper mark.
Overfilling the engine oil can result in leaks and
engine damage.
If any oil spills, wipe it away immediately. Spilled oil
may damage the engine compartment components.
Engine Oil Fill Cap
19 ACURA RLX HYBRID CSS-31TY36500.book 506 ページ ２０１８年３月７日　水曜日　午後４時１９分

507
uuMaintenance Under the Hood uChanging the Engine Oil and Oil Filter
Continued
Maintenance
Changing the Engine Oil and Oil Filter
You must change the engine oil and oil fi lter regularly in order to maintain the
engine’s lubrication. The engine may be damaged if they are not changed regularly.
Turning the power system on automatically starts the engine if the following
conditions are met:
• The SPORT mode is on.
2 SPORT Mode P. 393
Change the oil and filter in accordance with the maintenance message on the multi-
information display. 1.Run the engine until it reaches normal
operating temperature, and then turn the
engine off.
2. Open the hood and remove the engine oil
fill cap.
3. Remove the drain bolt and washer from
the bottom of the engine, and drain the
oil into a suitable container.
4. Remove the oil filter and dispose of the
remaining oil.
5. Check that the filter gasket is not stuck to
the engine contact surface.
u If it is stuck, you must detach it.
6. Wipe away dirt and dust adhering to the
contact surface of the engine block, and
install a new oil filter.
u Apply a light coat of new engine oil to
the filter gasket.
1Changing the Engine Oil and Oil Filter
NOTICE
You may damage the environment if you do not
dispose of the oil in a suitable way. If you are
changing the oil by yourself , appropriately dispose of
the used oil. Put the oil in a sealed container and take
it to a recycling center. Do not throw the oil away
into a garbage can or onto the ground.
You will need a special wrench to replace the oil
filter. You can buy this wrench from a dealer.
When installing the new oil filter, follow the
instructions supplied with the oil filter.
Reinstall the engine oil fill cap. Start the engine. The
low oil pressure indicator should go off within five
seconds. If it does not, turn off the engine, and check
your work.
Drain Bolt
Washer
Oil Filter
19 ACURA RLX HYBRID CSS-31TY36500.book 507 ページ ２０１８年３月７日　水曜日　午後４時１９分

508
uuMaintenance Under the Hood uChanging the Engine Oil and Oil Filter
Maintenance
7. Put a new washer on the drain bolt , then reinstall the drain bolt.
u Tightening torque:
30 lbf∙ft (40 N∙m, 4.0 kgf∙m)
8. Pour the recommended engine oil into the engine.
u Engine oil change capacity (including filter):
4.5 US qt (4.3 L)
9. Reinstall the engine oil fill ca p securely and start the engine.
10. Run the engine for a few minutes, and then check that there is no leak from the
drain bolt or oil filter.
11. Stop the engine, wait for three minutes, and then check the oil level on the
dipstick.
u If necessary, add more engine oil.
19 ACURA RLX HYBRID CSS-31TY36500.book 508 ページ ２０１８年３月７日　水曜日　午後４時１９分

509
uuMaintenance Under the Hood uCooling System
Continued
Maintenance
Cooling System
This coolant is premixed with 50% an tifreeze and 50% water. Do not add any
straight antifreeze or water.
We recommend you check the engine coolant level every time you refuel. Check the
reserve tank first. If it is completely empty, also check the coolant level in the
radiator. Add the engine coolant accordingly.
1. Make sure the engine and radiator are cool.
2. Check the amount of coolant in the reserve
tank.
u If the coolant level is below the MIN
mark, add the specified coolant until it
reaches the MAX mark.
3. Inspect the cooling system for leaks.
Specified coolant: Ac ura Long Life Antifreeze/Coolant Type 2
■Reserve Tank
1Cooling System
NOTICE
Genuine Acura engine cool ant is a 50/50 mixture of
antifreeze and water that can withstand freezing at
temperatures as low as a bout -31°F (-35°C). If your
vehicle is consistently subjected to temperatures
below this, the concentration of antifreeze in the
coolant should be increased. Consult a dealer for
details.
If Acura antifreeze/coolant is not available, you may
use another major brand of non-silicate coolant as a
temporary replacement. Check that it is a high quality
coolant recommended for aluminum engines.
Continued use of any non-Acur a coolant can result in
corrosion, causing the coo ling system to malfunction
or fail. Have the cooling system flushed and refilled
with Acura antifreeze/cool ant as soon as possible.
Do not add rust inhibitors or other additives to your
vehicle’s cooling system. They may not be compatible
with the coolant or with the engine components.
3WARNING
Removing the radiator cap while the
engine is hot can cause the coolant to spray
out, seriously scalding you.
Always let the engine and radiator cool
down before removing the radiator cap.
Reserve
Tank
MAX
MIN
19 ACURA RLX HYBRID CSS-31TY36500.book 509 ページ ２０１８年３月７日　水曜日　午後４時１９分

uuMaintenance Under the Hood uCooling System
510
Maintenance
1. Make sure the engine and radiator are
cool.
2. Remove the engine compartment cover.
2 Engine Compartment Cover P. 503
3.Turn the radiator cap 1/8 turn counter-
clockwise to relieve any pressure in the
cooling system.
4. Push down and turn the radiator cap
counter-clockwise to remove it.
5. The coolant level should be up to the base
of the filler neck. Add coolant if it is low.
6. Put the radiator cap back on, and tighten it
fully.
■Radiator1Radiator
NOTICE
Pour the fluid slowly and ca refully so you do not spill
any. Clean up any spills immediately; they can
damage components in the engine compartment.
Radiator Cap
19 ACURA RLX HYBRID CSS-31TY36500.book 510 ページ ２０１８年３月７日　水曜日　午後４時１９分

511
uuMaintenance Under the Hood uInverter Coolant
Maintenance
Inverter Coolant
This coolant is premixed with 50% an tifreeze and 50% water. Do not add any
straight antifreeze or water.
We recommend you check the inverter coolant level every time you refuel.
Have a dealer replace the inverter coolant.
1.Check the fluid level in the tank.
2. If the coolant level has dropped below the
MIN level, have your ve hicle serviced at a
dealer.
u Only a properly trained technician can
refill the coolant and check the system
for leaks.
Specified coolant: Ac ura Long Life Antifreeze/Coolant Type 2
■Checking the Coolant
1Inverter Coolant
NOTICE
Genuine Acura engine cool ant is a 50/50 mixture of
antifreeze and water that can withstand freezing at
temperatures as low as a bout -31°F (-35°C). If your
vehicle is consistently subjected to temperatures
below this, the concentration of antifreeze in the
coolant should be increased. Consult a dealer for
details.
If Acura antifreeze/coolant is not available, you may
use another major brand of non-silicate coolant as a
temporary replacement. Check that it is a high quality
coolant recommended fo r aluminum engines.
Continued use of any non-Acur a coolant can result in
corrosion, causing the coo ling system to malfunction
or fail. Have the cooling system flushed and refilled
with Acura antifreeze/cool ant as soon as possible.
Do not add rust inhibitors or other additives to your
vehicle’s cooling system. They may not be compatible
with the coolant or with the motor components.
MAX
MIN
Filler
Tank
19 ACURA RLX HYBRID CSS-31TY36500.book 511 ページ ２０１８年３月７日　水曜日　午後４時１９分

513
uuMaintenance Under the Hood uRefilling Window Washer Fluid
Maintenance
Refilling Window Washer Fluid
If the washer fluid is low, a message appears on the multi-information display.
Pour the washer fluid carefully. Do not overflow the reservoir.1Refilling Window Washer Fluid
NOTICE
Do not use engine antifreeze or a vinegar/water
solution in the windshield washer reservoir.
Antifreeze can damage y our vehicle’s paint. A
vinegar/water solution ca n damage the windshield
washer pump.
Use only commercially avai lable windshield washer
fluid.
Avoid prolonged use of hard water to prevent lime
scale build up.
19 ACURA RLX HYBRID CSS-31TY36500.book 513 ページ ２０１８年３月７日　水曜日　午後４時１９分

534
uuCleaning uExterior Care
Maintenance
Exterior Care
Dust off the vehicle body after you drive. Regularly inspect your vehicle for
scratches on painted surfaces. A scratch on a painted surface can result in body rust.
If you find a scratch, promptly repair it.
Wash the vehicle regularly. Wash more frequently when driving in the following
conditions:
• If driving on roads with road salt.
• If driving in coastal areas.
• If tar, soot, bird droppings, insects, or tree sap are stuck to painted surfaces.
• Make sure to follow the instructions indicated on the automated car wash.
• Fold in the door mirrors.
• Turn off the automatic intermittent wipers.
If you use a conveyor type automati c car wash, keep the transmission in
(N position.
2If you want to keep the transmission in (N position (car wash mode) P. 389
■Washing the Vehicle
■Using an Automated Car Wash
1Washing the Vehicle
Do not spray water into the air intake vents. It can
cause a malfunction.
Do not spray water onto the capless unit when the
fuel fill door is open. It ca n cause damage to the fuel
system or engine.
Air Intake Vents
1 Using an Automated Car Wash
When using an automated car wash that pulls the
vehicle through with a convey or, make sure vehicle is
in car wash mode. 2 If you want to keep the transmission in
(N
position (car wash mode) P. 389
19 ACURA RLX HYBRID CSS-31TY36500.book 534 ページ ２０１８年３月７日　水曜日　午後４時１９分

Continued535
uuCleaning uExterior Care
Maintenance
• Keep sufficient distance between the cleaning nozzle and the vehicle body.
• Take particular care around the windows. Standing too close may cause water to
enter the vehicle interior.
• Do not spray high pressure water directly into the engine compartment. Instead,
use low pressure water and a mild detergent.
A good coat of automotive body wax helps protect your vehicle’s paint from the
elements. Wax will wear off over time and expose your vehicle’s paint to the
elements, so reapply as necessary.
If you get gasoline, oil, engine coolant, or battery fluid on resin coated parts, they
may be stained or the coating may peel. Prom ptly wipe it away using a soft cloth and
clean water.
Wipe using a glass cleaner.
■Using High Pressure Cleaners
■Applying Wax
■Maintaining the Bumpers and Other Resin Coated Parts
■Cleaning the Window
1 Applying Wax
NOTICE
Chemical solvents and strong cleaners can damage
the paint, metal, and plasti c on your vehicle. Wipe
away spills immediately.
1 Maintaining the Bumpers an d Other Resin Coated Parts
Ask a dealer about the corr ect coating material when
you want to repair the pa inted surface of the parts
made of resin.
19 ACURA RLX HYBRID CSS-31TY36500.book 535 ページ ２０１８年３月７日　水曜日　午後４時１９分

537
Maintenance
Accessories and Modifications
Accessories
When installing accessories, check the following:
• Do not install accessories on the windsh ield. They can obstruct your view and
delay your reaction to driving conditions.
• Do not install any accessories over ar eas marked SRS AIRBAG, on the sides or
backs of the front seats, on front or si de pillars, or near the side windows.
Accessories installed in these areas may interfere with proper operation of the
vehicle’s airbags or may be propelled into you or another occupant if the airbags
deploy.
• Be sure electronic accessories do not overload electrical circuits or interfere with
proper operation of your vehicle.
2 Fuses P. 572
•Before installing any electro nic accessory, have the installer contact a dealer for
assistance. If possible, have a deal er inspect the final installation.
1Accessories and Modifications
Acura Genuine accessori es are recommended to
ensure proper operati on on your vehicle.
3WARNING
Improper accessories or modifications can
affect your vehicle’s handling, stability, and
performance, and cause a crash in which
you can be seriously hurt or killed.
Follow all instruction s in this owner’s
manual regarding accessories and
modifications.
3WARNING
Use of improperly designed, engineered or
manufactured high-voltage battery
assemblies could cause a fire in your
vehicle.
A vehicle fire could result in a crash or
injury.
Only use a genuine Acura high-voltage
battery assembly, or it s equivalent, in your
vehicle.
19 ACURA RLX HYBRID CSS-31TY36500.book 537 ページ ２０１８年３月７日　水曜日　午後４時１９分