How to carry out replacement: Lambda Sensor 1.9 TDI Seat Leon 1m1
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Change Seat Leon 1m1 1.6 16 V Lambda Sensor yourself – manuals and video tutorials

How to change lambda sensor on Seat Leon 1M1 – 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 (1M1) 1.4 16V, SEAT Leon Hatchback (1M1) 1.8 20V T, SEAT Leon Hatchback (1M1) 1.6, SEAT Leon Hatchback (1M1) 1.6, SEAT Leon Hatchback (1M1) 1.8 20V … View more

The steps may slightly vary depending on the car design.

How to change lambda sensor on SEAT LEON 1M1 [TUTORIAL AUTODOC]

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Published on: 22/09/2022
5K views
All the parts you need to replace – Lambda Sensor for Leon Hatchback (1M1) and other SEAT models
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Tools
Replacement: lambda sensor – Seat Leon 1M1. List of the tools you'll need:
Wire brush
WD-40 spray
Electronic spray
High-temperature ceramic grease
Torque wrench
Drive socket # 10
22-mm oxygen sensor socket
Thread tap
Ratchet wrench
Buy tools
Replacement: lambda sensor – Seat Leon 1M1. 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 1M1 – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    How to change Lambda Sensor on Seat Leon 1m1 1999 - free PDF and video manuals
    Lift the car using a jack or place it over an inspection pit.
  2. Step 2
    How to replace SEAT Leon Hatchback (1M1) 1.9 TDI 2000 Lambda Sensor - step-by-step manuals and video guides
    Unscrew the fasteners of the oxygen sensor housing cover. Use a drive socket #10. Use a ratchet wrench.
  3. Step 3
    Seat Leon 1m1 1.6 16 V 2001 Lambda Sensor replacement: free workshop manuals
    Remove the oxygen sensor housing cover.
  4. Step 4
    Changing Lambda Sensor on SEAT Leon Hatchback (1M1) 1.9 TDI Syncro 2002 by yourself
    Detach the oxygen sensor connector.
  5. Step 5
    How to remove SEAT LEON 1.8 T Cupra R 2003 Lambda Sensor - online easy-to-follow instructions
    Disconnect the oxygen sensor wiring.
  6. Step 6
    How to replace Lambda Sensor on SEAT Leon Hatchback (1M1) 2004: download PDF manuals and video instructions
    Clean the oxygen sensor fastener. Use a wire brush. Use WD-40 spray.
  7. Step 7
    How hard is it to do yourself: Lambda Sensor replacement on Seat Leon 1m1 1.4 16V 2005 - download illustrated guide
    Unscrew the oxygen sensor fastener. Use a 22-mm oxygen sensor socket. Use a ratchet wrench.
  8. Step 8
    Need to know how to renew Lambda Sensor on SEAT LEON 2006? This free workshop manual will help you to do it yourself
    Remove the oxygen sensor.
  9. Step 9
    Changing of Lambda Sensor on Seat Leon 1m1 1999 won't be an issue if you follow this illustrated step-by-step guide
    Clean the thread to prepare it for installing a new oxygen sensor. Use a thread tap. Use a ratchet wrench.
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