2021 Lexus ES 350 BaseFACTORY OEM SERVICE PROCEDURE

Components [06/2018 - ]

Fig 1: Heated Oxygen Sensor Replacement Components With Torque Specifications (1 Of 4)
GTY947577Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
*A Type A *B Type B
*1 FRONT FLOOR COVER RH - -
N.m (kgf/cm, ft.lbf): Specified torque - -
Fig 2: Heated Oxygen Sensor Replacement Components With Torque Specifications (2 Of 4)
GTY947233Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
*A Type A *B Type B
*1 FRONT FLOOR COVER LH - -
N.m (kgf/cm, ft.lbf): Specified torque - -
Fig 3: Heated Oxygen Sensor Replacement Components With Torque Specifications (3 Of 4)
GTY834100Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
*A Type A *B Type B
*1 BODY MOUNTING PLATE *2 FRONT WHEEL OPENING EXTENSION PAD LH
*3 FRONT WHEEL OPENING EXTENSION PAD RH *4 NO. 1 ENGINE UNDER COVER
*5 NO. 2 ENGINE UNDER COVER - -
N.m (kgf/cm, ft.lbf): Specified torque - -
Fig 4: Heated Oxygen Sensor Replacement Components With Torque Specifications (4 Of 4)
GTY766796Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
*1 FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst) *2 NO. 1 EXHAUST PIPE SUPPORT BRACKET (for Lower Side)
*3 HEATED OXYGEN SENSOR (for Bank 2) *4 HEATED OXYGEN SENSOR (for Bank 1)
*5 GASKET - -
N.m (kgf/cm, ft.lbf): Specified torque * For use with SST
β€’ Non-reusable part - -
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.