The 2010 Mazda 3 i is a moderately easy vehicle to maintain, but its lights will require a few tools to replace and repair. Changing the headlight with reliability is no problem, as you only have to reach behind the housing for access to the assembly. The engine air filter is easy to change on this vehicle, as you only have to disengage a few fasteners for access to the filter. 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.
Some things are problematic on the 2010 Mazda 3 i. You will have to peel back a lining and many fasteners for access to the center brake light. Other models will allow for less problematic access. To access the front turn signal bulb, you will need to peel back the wheel well lining. This lining can grow tight to the vehicle. You will need to use many tools to access the tail light bulbs. These tools may not be readily available for a repair.
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.