How to carry out replacement: Lambda Sensor 1.8 VVT-i (ZZT251_) Toyota Avensis t25 Saloon
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Change Toyota Avensis t25 Saloon 2.0 VVTi (AZT250_) Lambda Sensor yourself – manuals and video tutorials

How to change lambda sensor on TOYOTA Avensis II Saloon (T25) – replacement guide

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When to replace the Lambda Sensor on your TOYOTA AVENSIS
Recommended replacement interval for the part category Lambda sensor : 100000 km
Important!
This replacement procedure can be used for:
TOYOTA AVENSIS Saloon (T25) 1.8 VVT-i (ZZT251_), TOYOTA AVENSIS Saloon (T25) 2.0 VVT-i (AZT250_), TOYOTA AVENSIS Saloon (T25) 2.4 VVT-i (AZT251_), TOYOTA AVENSIS Saloon (T25) 2.4 VVT-i (AZT251_), TOYOTA AVENSIS Saloon (T25) 1.6 VVT-i (ZZT250_) … View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

All the parts you need to replace – Lambda Sensor for AVENSIS Saloon (T25) and other TOYOTA models
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How to change Lambda sensor on Avensis II Saloon (T25) – tips for proper car maintenance
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Lambda sensor for Avensis II Saloon (T25) Petrol (110 hp)
Tools
Replacement: lambda sensor – TOYOTA AVENSIS Saloon (T25). List of the tools you'll need:
Wire brush
WD-40 spray
All-purpose cleaning spray
Electronic spray
High-temperature ceramic grease
Torque wrench
Flare nut wrench #22
22-mm oxygen sensor socket
Thread tap
Ratchet wrench
Flat screwdriver
Nippers
Crimping pliers
Heat gun
Fender cover
Buy tools
Replacement: lambda sensor – TOYOTA AVENSIS Saloon (T25). AUTODOC experts recommend:
  • After replacing the oxygen sensor, clear the trouble code from the electronic control unit and let the ECU adapt itself to the new sensor.
  • All work should be done with the engine stopped.
  • Please note: all work on the car – TOYOTA AVENSIS Saloon (T25) – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    Open the hood.
    Step 2
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
    Step 3
    How to change Lambda Sensor on Toyota Avensis t25 Saloon 2003 - free PDF and video manuals
    Detach the oxygen sensor connector.
  2. Step 4
    How to replace TOYOTA AVENSIS Saloon (T25) 1.8 VVT-i (ZZT251_) 2004 Lambda Sensor - step-by-step manuals and video guides
    Unfasten the clamp to release the oxygen sensor wiring harness. Use a flat screwdriver.
  3. Step 5
    Toyota Avensis t25 Saloon 2.0 D-4D (CDT250_) 2005 Lambda Sensor replacement: free workshop manuals
    Clean the oxygen sensor fastener. Use a wire brush. Use WD-40 spray.
  4. Step 6
    Changing Lambda Sensor on TOYOTA AVENSIS Saloon (T25) 2.0 D-4D (ADT250_) 2006 by yourself
    Unscrew the oxygen sensor fastener. Use a flare nut spanner #22. Use a ratchet wrench.
  5. Step 7
    How to remove TOYOTA AVENSIS 1.6 VVT-i (ZZT250_) 2007 Lambda Sensor - online easy-to-follow instructions
    Remove the oxygen sensor.
  6. Step 8
    How to replace Lambda Sensor on TOYOTA AVENSIS Saloon (T25) 2008: download PDF manuals and video instructions
    Cut the thread for the new oxygen sensor. Use a thread tap. Use a ratchet wrench.
  7. Step 9
    How hard is it to do yourself: Lambda Sensor replacement on Toyota Avensis t25 Saloon 2.2 D-CAT (ADT251_) 2003 - download illustrated guide
    Clean the oxygen sensor mounting seat. Use all-purpose cleaning spray.
    Replacement: lambda sensor – TOYOTA AVENSIS Saloon (T25). Professionals recommend:
    In this case, the connector needs to be removed from the old oxygen sensor and installed on a new one.
  8. Step 10
    Need to know how to renew Lambda Sensor on TOYOTA AVENSIS 2004? This free workshop manual will help you to do it yourself
    Cut off the connector from the old oxygen sensor. Use nippers.
  9. Step 11
    Changing of Lambda Sensor on Toyota Avensis t25 Saloon 2005 won't be an issue if you follow this illustrated step-by-step guide
    Shorten the wires of the old oxygen sensor connector in such a way that each successive wire is shorter than the previous one. Use nippers.
  10. Step 12
    TOYOTA AVENSIS 2.0 VVTi (AZT250_) Lambda Sensor replacement: online guides and video tutorials
    Shorten the wires of the new oxygen sensor in a corresponding way. Use nippers.
    Replacement: lambda sensor – TOYOTA AVENSIS Saloon (T25). AUTODOC experts recommend:
    Follow the colour coding of the wires. If it does not match, see the manufacturer's instructions for the correct connection order.
  11. Step 13
    Replacing Lambda Sensor on Toyota Avensis t25 Saloon 2007 1.8 VVT-i (ZZT251_) by yourself
    Strip the wires of the connector and the new sensor. Use nippers.
  12. Step 14
    AVENSIS Saloon (T25) 1.6 VVT-i (ZZT250_) 2008 Lambda Sensor DIY replacement workshop manual
    Place the heat shrink tubing on the oxygen sensor wiring.
  13. Step 15
    How to change Lambda Sensor on TOYOTA AVENSIS Saloon (T25) 2003 - tips and tricks
    Using solder sleeves, splice the oxygen sensor wires with the connector wires according to the colour coding.
  14. Step 16
    Step-by-step recommendations for DIY replacement Toyota Avensis t25 Saloon 2004 1.6 VVT-i (ZZT250_) Lambda Sensor
    Crimp the solder sleeves. Use crimping pliers.
  15. Step 17
    DIY replacement of Lambda Sensor on TOYOTA AVENSIS Saloon (T25) 2.0 VVT-i (AZT250_) 2005 is not an issue anymore with our step-by-step tutorial
    Shrink the heat shrink tubes of the solder sleeves. Use a heat gun.
  16. Step 18
    How to change Lambda Sensor on Toyota Avensis t25 Saloon 2003 - free PDF and video manuals
    Slide the heat shrink tubing you put in place earlier over the wire connection.
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DIY TOYOTA AVENSIS Saloon (T25) Lambda Sensor replacement - online guide
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