There's a plastic guard on the underside of the car that must be removed so that you can get to the oil filter and drain plug. The filter itself is a canister filter, so you replace the paper filter and the rubber gasket, but reuse the plastic housing.
The cabin filter on a 2004 Volvo XC70 is located behind the glove compartment. To change it, first, remove the glove compartment by unscrewing the stops and gently pulling it down. Then, access the filter cover, unclip it, and slide out the old filter. Replace it with a new one, ensuring the airflow direction matches the markings, and reassemble the glove compartment.
To change the cabin air filter on a 2008 Volvo XC70, first locate the filter compartment behind the glove box. Open the glove box and gently remove it by releasing the stops on either side. Once the glove box is out, you'll see the cabin air filter cover; unclip it and remove the old filter. Insert the new filter in the same orientation as the old one, reattach the cover, and replace the glove box.
The 2007 Volvo XC70 has 20 valves.
The 2004 Volvo XC70 has 20 valves.
The 2003 Volvo XC70 has 20 valves.
The 2006 Volvo XC70 has 20 valves.
The 2005 Volvo XC70 has 20 valves.
The 2009 Volvo XC70 has 24 valves.
The 2013 Volvo XC70 has 24 valves.
The 2015 Volvo XC70 has 16 valves.
The 2014 Volvo XC70 has 24 valves.
The 2011 Volvo XC70 has 24 valves.