Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Lexus LS 500 Base, AWDFACTORY OEM SERVICE PROCEDURE
Components [12/2017 - ]
| *A | for 2WD | *B | for AWD |
| *1 | E.F.I. ENGINE COOLANT TEMPERATURE SENSOR (for Front) | *2 | E.F.I. ENGINE COOLANT TEMPERATURE SENSOR (for Rear) |
| *3 | ENGINE COOLANT TEMPERATURE SENSOR | *4 | LOWER RADIATOR AIR DEFLECTOR |
| *5 | RADIATOR COVER PLATE | *6 | UPPER RADIATOR SUPPORT SEAL |
| *7 | V-BANK COVER SUB-ASSEMBLY | *8 | GASKET |
| *9 | CLIP | - | - |
| N.m (kgf/cm, ft.lbf): Specified torque | • | Non-reusable part |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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