How to carry out replacement: Lambda Sensor 2.0 TDI Seat Exeo st
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Change Seat Exeo st 2.0 TFSI Lambda Sensor yourself – manuals and video tutorials

How to change lambda sensor on SEAT Exeo ST (3R5) – replacement guide

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When to replace the Lambda Sensor on your SEAT EXEO
Recommended replacement interval for the part category Lambda sensor : 100000 km
Important!
This replacement procedure can be used for:
SEAT Exeo ST (3R5) 1.8 T … 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 Exeo ST (3R5) and other SEAT models
Alternative products
How to change Lambda sensor on Seat Exeo st 2.0 TDI – step-by-step instructions for straightforward car repair Lambda sensor
Tools
Replacement: lambda sensor – SEAT EXEO ST (3R5). 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
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Replacement: lambda sensor – SEAT EXEO ST (3R5). 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 EXEO ST (3R5) – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    Lift the car using a jack or place it over an inspection pit.
    Step 2
    How to change Lambda Sensor on Seat Exeo st 2009 - free PDF and video manuals
    Unscrew the fasteners of the oxygen sensor housing cover. Use a drive socket #10. Use a ratchet wrench.
  2. Step 3
    How to replace SEAT Exeo ST (3R5) 2.0 TDI 2010 Lambda Sensor - step-by-step manuals and video guides
    Remove the oxygen sensor housing cover.
  3. Step 4
    Seat Exeo st 1.8 TSI 2011 Lambda Sensor replacement: free workshop manuals
    Detach the oxygen sensor connector.
  4. Step 5
    Changing Lambda Sensor on SEAT Exeo ST (3R5) 2.0 TFSI 2012 by yourself
    Disconnect the oxygen sensor wiring.
  5. Step 6
    How to remove SEAT EXEO 1.6 2013 Lambda Sensor - online easy-to-follow instructions
    Clean the oxygen sensor fastener. Use a wire brush. Use WD-40 spray.
  6. Step 7
    How to replace Lambda Sensor on SEAT Exeo ST (3R5) 2014: download PDF manuals and video instructions
    Unscrew the oxygen sensor fastener. Use a 22-mm oxygen sensor socket. Use a ratchet wrench.
  7. Step 8
    How hard is it to do yourself: Lambda Sensor replacement on Seat Exeo st 1.8 TSI 2015 - download illustrated guide
    Remove the oxygen sensor.
  8. Step 9
    Need to know how to renew Lambda Sensor on SEAT EXEO 2016? This free workshop manual will help you to do it yourself
    Clean the thread to prepare it for installing a new oxygen sensor. Use a thread tap. Use a ratchet wrench.
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