Air filter change Opel Astra 2009 - 2013 | Haynes Manuals
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Air filter location
First, unplug the MAF sensor
Undo the circular clip on the air intake with a screwdriver
Now release the air intake
Undo the 6 Phillips retaining fixings
Carefully lift away the top section of the air filter body
View of the air filter cover
Now you can lift out the air filter
Clean off any debris on the surface of the filter. Replace with new filter if heavily contaminated
Check air filter box for debris. Clean if required. Now replace the air filter
Reassemble the air filter housing