The duration of a car service can vary based on a few factors such as the type of service, the make and model of the vehicle, and the condition of the car. As a general guide, an interim service might take around 1.5 hours, a full service could take about 3 hours, and a major service could extend beyond 4 hours. It’s always best to confirm with your service centre, as some cars may require more time, especially if additional issues are found during the service.