How to carry out replacement: Lambda Sensor 1.9 CDTI 16V VAUXHALL SIGNUM
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Change VAUXHALL SIGNUM 3.0 CDTi Lambda Sensor yourself – manuals and video tutorials

How to change lambda sensor on VAUXHALL Signum (Z03) – replacement guide

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When to replace the Lambda Sensor on your VAUXHALL SIGNUM
Recommended replacement interval for the part category Lambda sensor : 100000 km
Important!
This replacement procedure can be used for:
VAUXHALL Signum (Z03) 2.0 i Turbo, VAUXHALL Signum (Z03) 2.2 i, VAUXHALL Signum (Z03) 1.8, VAUXHALL Signum (Z03) 1.8 … 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 Signum (Z03) and other VAUXHALL models
How to change Lambda sensor on VAUXHALL SIGNUM 1.9 CDTI 16V – step-by-step instructions for straightforward car repair Lambda sensor
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Lambda sensor for Signum (Z03) Petrol (175 hp)
Simple DIY car repair steps – Replacing Lambda sensor on Signum (Z03)
Lambda sensor for Signum (Z03) Petrol (155 hp)
Easy tricks to help you to replace Lambda sensor on Signum (Z03)
Lambda sensor for Signum (Z03) Petrol (140 hp)
Lambda sensor removal & installation, incredibly easy steps for Signum (Z03)
Lambda sensor for Signum (Z03) Petrol (122 hp)
Tools
Replacement: lambda sensor – VAUXHALL SIGNUM. List of the tools you'll need:
Wire brush
WD-40 spray
Electronic spray
High-temperature ceramic grease
Torque wrench
Combination spanner #22
Flare nut wrench #22
Ratchet wrench
Thread tap
Fender cover
Buy tools
Replacement: lambda sensor – VAUXHALL SIGNUM. 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 – VAUXHALL SIGNUM – 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 VAUXHALL SIGNUM 2003 - free PDF and video manuals
    Clean the oxygen sensor fastener. Use a wire brush. Use WD-40 spray.
  2. Step 5
    How to replace VAUXHALL Signum (Z03) 1.9 CDTI 16V 2004 Lambda Sensor - step-by-step manuals and video guides
    Detach the oxygen sensor connector.
  3. Step 6
    VAUXHALL SIGNUM 3.0 V6 CDTI 2005 Lambda Sensor replacement: free workshop manuals
    Unscrew the oxygen sensor fastener. Use a flare nut spanner #22.
  4. Step 7
    Changing Lambda Sensor on VAUXHALL Signum (Z03) 1.8 2006 by yourself
    Remove the oxygen sensor.
  5. Step 8
    How to remove VAUXHALL SIGNUM 1.9 CDTI 2007 Lambda Sensor - online easy-to-follow instructions
    Cut the thread for the new oxygen sensor. Use a thread tap. Use a ratchet wrench.
  6. Step 9
    Treat the oxygen sensor. Use high-temperature ceramic grease.
    Step 10
    How to replace Lambda Sensor on VAUXHALL Signum (Z03) 2008: download PDF manuals and video instructions
    Install the new oxygen sensor.
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