This page:

Replacing the air filter on an Alfa Romeo 156, GT 3.2 and a 147 GTA

	The air filter is located in front of the battery.
	Remove the cover from the relay box, then unclip the relays from their bracket and carefully move the whole lot over into the inner wing.
	Undo the clip for the air intake hose.
	Undo the three fastners around the air filter housing, these can be screws or nuts depending on the age of the Alfa
	Lift up the lid of the air filter housing with the air flow meter. On some models it is necessary to disconnect the air flow meter.
	Remove the Air filter and replace with a new one. Then reverse the procedure to refit the new air filter.
	If you are an existing online parts customer of ours, you can get Further Technical DataIf you are unsure about your login details, have a look at the bottom of previous emails from us. If you no longer have these emails, click through this link and then on the "Forgotten Password" link, using the email that you used for the last purchase (usually the email address you use for PayPal). If you still have problems, don't set yourself up as a new user as this new user won't have the purchase history to allow access to the technical data. Just send us an email instead.