The 2010 Volvo S80 T6 is a relatively difficult vehicle to maintain, and is only recommended to those capable of vehicle maintenance. You will need to use many tools in order to access the fog light. This will require many tools to complete. The brake fluid reservoir is not overly visible on this vehicle. This will make it hard to check and replenish the fluid level with reliability. The cabin air filter is extremely problematic to access. You will have to make a difficult reach under the glove box, as well as use many tools, in order to change the filter.
Some things are easier on the 2010 Volvo S80 T6. The components of the spare tire are easily accessible in the rear of the vehicle. This keeps the tire and jack kit ready to go in case of emergency. Changing the tail light bulbs will be no problem. You only have to peel back one panel for access. The engine coolant reservoir is very visible in the engine bay. This will allow you to check and replenish the fluid level on a regular basis.
Hans Angermeier has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road.