Requires a special wrench tool. Look on eBay for "Volvo Oil Filter Wrench" They are about $10.
0W30 or 5w30
The oil filter is underneath the xc90. First you have to remove the plastic cover, then you'll see the oilfilter cover on the passenger side of the car. The cover is a hard plastic black cap, that can only be removed with the right oilcap wrench.
7.1 US Quarts
Castrol edge 0W30
7
Volvo C70, S40, S60, S70, S80, V40, V70, XC70, XC90 with different engine sizes and years.
How do I change oil and oil filter on 2000 Volvo v40 1.9turbo
At least every 5000 miles to 3000 miles
5.7 US quarts (includes filter)
It isw mounted on(driven by) the front of the crankshaft, under the timing cover.
The oil filter is located underneath the engine, passenger side. You will see it in a black plastic housing. The Volvo S40 doesn't use a traditional metal style oil filter. You can order the filter from your Volvo dealer or K&N makes one as well, model # HP-7002. You will need a special wrench to remove the filter, you can order this from your Volvo dealer or from Amazon.com (search for Volvo S40 filter wrench), made by AST/Assenmacher, cost is roughly $14.00.