2004 TOYOTA PRIUS engine

Explanation of Maintenance Items
Scheduled Maintenance Logs21
Drive Belts
Inspect for cracks, excessive wear and oiliness. Check the belt tension and
adjust if necessary. Replace the belts if they are damaged.
Drive Shaft Boots
Check the drive shaft boots and clamps for cracks, deterioration and damage.
Replace any deteriorated or damaged parts and, if necessary, repack the grease.
A qualified technician should perform these operations.
Engine Air Filter
Replace at specified intervals. When performing inspections, check for damage,
excessive wear and oiliness, and replace if necessary.
Engine and Inverter Coolant
Drain and flush the cooling system and refill with an ethyleneglycol type
coolant. Inspect hoses and connections for corrosion and leaks. Tighten connec
tions and replace parts as necessary. A qualified technician should perform these
operations.
Note:Your Toyota is equipped with Genuine Toyota Super LongLife Coolant. The
replacement intervals for engine coolant recommended in this booklet are based
on replacement with Genuine Toyota Super LongLife Coolant or similar high
quality nonsilicate, nonamine, nonborate ethyleneglycol coolant with
longlife hybrid organic acid technology (i.e., a combination of low phosphates
and organic acids). If another type of ethyleneglycol coolant is used, replace
ment intervals may be different.
Engine Oil and Oil Filter
Replace the oil filter and drain and refill the engine oil at specified intervals.
For recommended oil grade and viscosity, refer to the
Owner’s Manual.
Engine Valve Clearance
Inspect for excessive lifter noise and engine vibration and adjust if necessary.
A qualified technician should perform this operation.
Exhaust Pipes and Mountings
Visually inspect the exhaust pipes, muffler and hangers for cracks, deterioration
and damage. Start the engine and listen carefully for any exhaust gas leakage.
Tighten connections or replace parts as necessary.

Toyota Maintenance and Repair Support30
DoItYourself Products
When it’s time to replace key wear items on your vehicle, don’t settle for less
than Genuine Toyota Parts. Available exclusively through Toyota dealerships,
Genuine Toyota Parts meet the highest standards of quality and performance and
are built to exact factory specifications. Here are a few of your vehicle’s compo
nents that are particularly subject to wear and some benefits of replacing them
with Genuine Toyota Parts.
Genuine Toyota Iridium Spark Plugs*
•Specially designed to work with your vehicle’s ignition system.
•Feature a smaller center electrode than conventional plugs, which translates
into better performance.
•Made with iridium for maximum durability.
Genuine Toyota Brake Pads
•Friction materials selected for optimum performance when matched with
Toyota brake drums or rotors.
•Precisionmachined backing plates allow pads to move freely within the
calipers for smooth, efficient braking.
Genuine Toyota Wiper Inserts
•Cut to match the exact length and shape of your vehicle’s wiper blades for a
proper and secure fit.
•Constructed of compressionmolded natural rubber — not synthetic — for
superior wiping performance.
Always use the right spark plugs for your engine. The wrong plugs can have a
negative impact on fuel economy and overall engine performance.*

Toyota Maintenance and Repair Support31
DoItYourself Products
Genuine Toyota Chemicals
Toyota offers a complete line of products to help you keep your Toyota looking and
running like new. To safeguard your vehicle’s appearance, you’ll find everything
from fabric spot remover and glass cleaner to liquid car wash and touchup paint.
When it’s time to get under the hood (or under the car), products such as fuel
injector cleaner, brake fluid and silicone spray will help you get the job done.
All of these products are formulated specifically for use with Toyota vehicles, so you
can be confident you’re giving your vehicle the best care possible, inside and out.
Genuine Toyota Super LongLife Antifreeze/Coolant
Genuine Toyota Super LongLife Antifreeze/Coolant is the same highquality,
factoryfill product found in new Toyotas. It provides maximum protection and
durability without the use of harmful silicates. And because it’s compatible with
nonmetallic materials, it helps extend the life of waterpump seals. Don’t trust
your engine to anything less than the best: Genuine Toyota Super LongLife
Antifreeze/Coolant.
Genuine Toyota Motor Oil
Your Toyota’s engine features highly advanced technology to ensure superior
performance, reliability and fuel economy. Genuine Toyota Motor Oil is formulated
with a special combination of lubebase stocks and an additive blend to maxi
mize the benefits of this technology. Make sure you’re getting the most out of
your engine by always putting the best into it: Genuine Toyota Motor Oil.