How often you should service your MINI depends on your vehicle's age and mileage. One of the advantages of owning a MINI is having a built-in system called a Service Interval Indicator (SII) that reminds car owners when their vehicle is due for servicing. It tracks your mileage and the date of the last service and notifies you when maintenance work is needed. Newer models carry a Condition Based Servicing (CBS) system which conducts the same tracking process but has the additional step of downloading your car's data. It also enables technicians to discover any repairs or services required on your MINI. Whichever system your MINI has, it's best to get your vehicle inspected as soon as your service light alerts you that it's time for a check-up.