Generally the cartridge housing does not require replacement, however if it becomes cross threaded it can become difficult to install correctly which can lead to leaks. Also, it is not uncommon for the filter to be over tightened be a well meaning technician. As the engine heat cycles through use, the filter housing tightens up further, often leading to very difficult removal wherein some cases the housing will become damaged or stripped during removal. This is when you need a new housing. We've also heard that the housing can become brittle as it ages (60,000+ miles.)
Volvo is a little unclear on when the cartridge style housing was first introduced. We believe 1999 Turbo models had the new cartridge style and 1999 non-turbo models still had the older spin on style. All models 2000 and newer have the cartridge style filter.
The O-ring on the housing should be replaced at every filter service and is included with the filter.
