Lexus ES manuals

Lexus ES: Engine compartment

Components

Lexus ES. Do-it-yourself maintenance

  1. Fuse boxes
  2. Engine oil filler cap
  3. Engine oil level dipstick
  4. Brake fluid reservoir
  5. Radiator
  6. Electric cooling fan
  7. Condenser
  8. Power control unit coolant reservoir
  9. Engine coolant reservoir
  10. Washer fluid tank

Checking and adding the engine oil

With the engine at operating temperature and turned off, check the oil level on the dipstick.

■ Checking the engine oil

1. Park the vehicle on level ground.

After warming up the engine and turning off the hybrid system, wait more than 5 minutes for the oil to drain back into the bottom of the engine.

2. Holding a rag under the end, pull the dipstick out.

Lexus ES. Do-it-yourself maintenance

3. Wipe the dipstick clean.

4. Reinsert the dipstick fully.

5. Holding a rag under the end, pull the dipstick out and check the oil level.

Lexus ES. Do-it-yourself maintenance

  1. Low
  2. Normal
  3. Excessive

The shape of the dipstick may differ depending on the type of vehicle or engine.

6. Wipe the dipstick and reinsert it fully.

■ Checking the oil type and preparing the items needed Make sure to check the oil type and prepare the items needed before adding oil.

■ Adding engine oil If the oil level is below or near the low level mark, add engine oil of the same type as that already in the engine.

Lexus ES. Do-it-yourself maintenance

1. Remove the oil filler cap by turning it counterclockwise.

2. Add engine oil slowly, checking the dipstick.

3. Install the oil filler cap by turning it clockwise.

■Engine oil consumption A certain amount of engine oil will be consumed while driving. In the following situations, oil consumption may increase, and engine oil may need to be refilled in between oil maintenance intervals.

■After changing the engine oil The engine oil maintenance data should be reset. Perform the following procedures:

1. While the vehicle is stopped, press of the meter control switches.

2. Press or of the meter control switches, and select .

3. Press or of the meter control switches, select "Vehicle Settings", and then press "OK".

4. Press or of the meter control switches, select "Oil Maintenance", and then press "OK".

5. Select "Yes" and then press "OK".

A message will be displayed on the multi-information display.

WARNING

■Used engine oil

NOTICE

■To prevent serious engine damage Check the oil level on a regular basis.

■When replacing the engine oil

Checking the coolant

The coolant level is satisfactory if it is between the "F"/"FULL" and "L"/"LOW" lines on the reservoir when the hybrid system is cold.

■ Engine coolant reservoir

Lexus ES. Do-it-yourself maintenance

  1. Reservoir cap
  2. "F" line
  3. "L" line

If the level is on or below the "L" line, add coolant up to the "F" line.

■ Power control unit coolant reservoir

Lexus ES. Do-it-yourself maintenance

  1. Reservoir cap
  2. "FULL" line
  3. "LOW" line

If the level is on or below the "LOW" line, add coolant up to the "FULL" line.

■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 mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31ºF [- 35ºC])

Canada: "Toyota Super Long Life Coolant" is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44ºF [- 42ºC])

For more details about coolant, contact your Lexus dealer.

■If the coolant level drops within a short time of replenishing Visually check the radiator, hoses, engine/power control unit 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.

WARNING

■When the hybrid system is hot Do not remove the engine/power control unit coolant reservoir caps or the radiator cap. 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 cooling. 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.

Checking the radiator and condenser

Check the radiator and condenser and clear away any foreign objects.

If either of the above parts is extremely dirty or you are not sure of their condition, have your vehicle inspected by your Lexus dealer.

WARNING

■When the hybrid system is hot Do not touch the radiator or condenser as they may be hot and cause serious injuries, such as burns.

Checking and adding the brake fluid

■ Checking fluid level The brake fluid level should be between the "MAX" and "MIN" lines on the tank.

Lexus ES. Do-it-yourself maintenance

■ Adding fluid Make sure to check the fluid type and prepare the necessary items.

FMVSS No.116 DOT 3 or SAE J1703 brake fluid
FMVSS No.116 DOT 4 or SAE J1704 brake fluid

Clean funnel

■Brake fluid can absorb moisture from the air Excess moisture in the brake fluid can cause a dangerous loss of braking efficiency. Use only newly opened brake fluid.

WARNING

■When filling the reservoir Take care as brake fluid can harm your hands and 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, see a doctor.

NOTICE

■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 out or when the fluid level in the accumulator is high.

If the reservoir needs frequent refilling, there may be a serious problem.

Adding the washer fluid

If any washer does not work or "Windshield Washer Fluid Low" is shown on the multi-information display, the washer tank may be empty. Add washer fluid.

Lexus ES. Do-it-yourself maintenance

WARNING

■When adding washer fluid Do not add washer fluid when the hybrid system is hot or operating as washer fluid contains alcohol and may catch fire if spilled on the engine etc.

NOTICE

■Do not use any fluid other than washer fluid Do not use soapy water or engine antifreeze instead of washer fluid.

Doing so may cause streaking on the vehicle's painted surfaces, as well as damaging the pump leading to problems of the washer fluid not spraying.

■Diluting washer fluid Dilute washer fluid with water as necessary.

Refer to the freezing temperatures listed on the label of the washer fluid bottle.

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