Air filter change Opel Insignia 2008 - 2012 | Haynes Manuals
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The air filter location
First, unplug the MAF sensor
Now undo the circular clip on the air intake - use a 7mm socket
Now release the air intake
Undo the 6 Torx-25 retaining fixings on the air filter body
Carefully lift away the air filter top section
View of the air filter cover
Air filter in position
Now lift out the air filter
Clean off any debris on the surface of the filter. Replace with a new filter if heavily contaminated
Check air filter box for debris. Clean if required. Now you can replace the air filter
Reassemble the air filter housing