The main difference between the minor and major vehicle service is the amount of time and parts required to carry out the vehicles specific maintenance schedule, but there is a lot more to consider.
A minor servicing generally includes a comprehensive vehicle inspection and diagnostic checks, engine oil and filter replacement, vehicle greasing and tyre rotation by a professional factory-trained technician. It can be part of the logbook service, and sometimes it will be referred to as a basic or general service.
As a rough guideline - this really depends on our vehicle, manufacturer requirements, engine type and how your vehicle is being used - a minor service is required every 10,000km or every year.
A major service includes replacing transmission and differential oils, which lubricates the ring and pinion gears that transfer power from the driveshaft to the wheel axles. You can also count on checking and replacing brake and clutch fluid, adjusting tappet clearance to make sure the most important parts in your engine keep running in optimal condition. It also the time to check and replace wheel bearing grease, to name but a few of the additional items required.
Depending on the vehicle, manufacturer requirements and engine type, you can count on a major service after two minor ones, so about every three years or 30,000km. This is usually also the right time to think about replacing spark plugs, cabin and fuel filters and timing belts for example. Your manufacturers logbook will tell you exactly when these services are necessary.