How to carry out replacement: Lambda Sensor 1.9 TDI Seat León Mk2
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Change Seat León Mk2 1.9 TDI Lambda Sensor yourself – manuals and video tutorials

How to change lambda sensor on SEAT Leon Hatchback (1P1) – replacement guide

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When to replace the Lambda Sensor on your SEAT LEON
Recommended replacement interval for the part category Lambda sensor : 100000 km
Important!
This replacement procedure can be used for:
SEAT Leon Hatchback (1P1) 1.6 LPG, SEAT Leon Hatchback (1P1) 1.4 16V, SEAT Leon Hatchback (1P1) 1.6 MultiFuel … 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 Leon Hatchback (1P1) and other SEAT models
Alternative products
How to change Lambda sensor on Seat León Mk2 1.9 TDI – step-by-step instructions for straightforward car repair Lambda sensor
Tools
Replacement: lambda sensor – SEAT LEON (1P1). List of the tools you'll need:
Wire brush
WD-40 spray
Electronic spray
High-temperature ceramic grease
Torque wrench
Drive socket # 10
Flare nut wrench #22
Clip removal tool
Ratchet wrench
Thread tap
Fender cover
Buy tools
Replacement: lambda sensor – SEAT LEON (1P1). 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.
  • Before getting down to work, start the engine and let it warm up to operating temperature.
  • Please note: all work on the car – SEAT LEON (1P1) – 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
    Lift the car using a jack or place it over an inspection pit.
    Step 4
    How to change Lambda Sensor on Seat León Mk2 2005 - free PDF and video manuals
    Undo the fasteners of the oil pan lower cover. Use a drive socket #10. Use a ratchet wrench.
  2. Step 5
    How to replace SEAT Leon Hatchback (1P1) 1.9 TDI 2006 Lambda Sensor - step-by-step manuals and video guides
    Remove the oil pan cover.
  3. Step 6
    Seat León Mk2 2.0 TDI 16V 2007 Lambda Sensor replacement: free workshop manuals
    Disconnect the oxygen sensor wiring. Use a clip removal tool.
  4. Step 7
    Changing Lambda Sensor on SEAT Leon Hatchback (1P1) 1.6 TDI 2008 by yourself
    Detach the oxygen sensor connector. Use a clip removal tool.
  5. Step 8
    How to remove SEAT LEON 1.6 2009 Lambda Sensor - online easy-to-follow instructions
    Clean the oxygen sensor fastener. Use a wire brush. Use WD-40 spray.
  6. Step 9
    How to replace Lambda Sensor on SEAT Leon Hatchback (1P1) 2010: download PDF manuals and video instructions
    Unscrew the oxygen sensor fastener. Use a flare nut spanner #22.
  7. Step 10
    How hard is it to do yourself: Lambda Sensor replacement on Seat León Mk2 2.0 TFSI 2011 - download illustrated guide
    Remove the oxygen sensor.
  8. Step 11
    Need to know how to renew Lambda Sensor on SEAT LEON 2012? This free workshop manual will help you to do it yourself
    Cut the thread for the new oxygen sensor. Use a thread tap. Use a ratchet wrench.
  9. Step 12
    Treat the oxygen sensor. Use high-temperature ceramic grease.
    Step 13
    Changing of Lambda Sensor on Seat León Mk2 2005 won't be an issue if you follow this illustrated step-by-step guide
    Install the new oxygen sensor.
  10. Step 14
    SEAT LEON 1.9 TDI Lambda Sensor replacement: online guides and video tutorials
    Tighten the oxygen sensor fastener. Use a flare nut spanner #22. Use a torque wrench. Tighten it to 37 Nm torque.
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