How to carry out replacement: Lambda Sensor 1.6 HDi Citroën C4 Coupe
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Change Citroën C4 Coupe 1.6 16V Lambda Sensor yourself – manuals and video tutorials

How to change lambda sensor on CITROËN C4 Coupe (LA_) – replacement guide

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When to replace the Lambda Sensor on your CITROËN C4
Recommended replacement interval for the part category Lambda sensor : 100000 km
Important!
This replacement procedure can be used for:
CITROËN C4 Coupe (LA_) 2.0 VTR, CITROËN C4 Coupe (LA_) 1.6 THP, CITROËN C4 Coupe (LA_) 1.6 VTi … 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 C4 Coupe (LA_) and other CITROËN models
Alternative products
How to change Lambda sensor on Citroën C4 Coupe 1.6 HDi – step-by-step instructions for straightforward car repair Lambda sensor
Tools
Replacement: lambda sensor – CITROËN C4 Coupe (LA_). Tools you might need:
Wire brush
WD-40 spray
Electronic spray
Copper grease
Torque wrench
Combination spanner #22
22-mm oxygen sensor socket
Ratchet wrench
Thread tap
Fender cover
Buy tools
Replacement: lambda sensor – CITROËN C4 Coupe (LA_). 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 – CITROËN C4 Coupe (LA_) – should be done with the engine switched off.
Carry out replacement in the following order:
  1. Step 1
    Open the bonnet.
    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 Citroën C4 Coupe 2004 - free PDF and video manuals
    Detach the oxygen sensor connector.
  2. Step 4
    How to replace CITROËN C4 Coupe (LA_) 1.6 HDi 2005 Lambda Sensor - step-by-step manuals and video guides
    Clean the oxygen sensor fastener. Use a wire brush. Use WD-40 spray.
  3. Step 5
    Citroën C4 Coupe 1.6 16V 2006 Lambda Sensor replacement: free workshop manuals
    Unscrew the oxygen sensor fastener. Use a 22-mm oxygen sensor socket. Use a ratchet wrench.
  4. Step 6
    Changing Lambda Sensor on CITROËN C4 Coupe (LA_) 2.0 HDi 2007 by yourself
    Remove the oxygen sensor.
  5. Step 7
    How to remove CITROËN C4 2.0 16V 2008 Lambda Sensor - online easy-to-follow instructions
    Clean the oxygen sensor mounting seat. Use WD-40 spray.
  6. Step 8
    How to replace Lambda Sensor on CITROËN C4 Coupe (LA_) 2009: download PDF manuals and video instructions
    Cut the thread for the new oxygen sensor. Use a thread tap. Use a ratchet wrench.
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