I think it's 15,000 miles or yearly in the UK. I'm currently on 12,500ish and 10 months ownership so will need to do it soon. I'm curious though, does the car know when it needs a service and ping a reminder up on the screen? My partners smart car used to be quite insistent when it needed a service with a reminder every time it was switched on and her garage had to plug it into a diagnostic computer to clear the message after the service. Does the MG4 do the same? Mine is a lease with Tusker and it won't be going to an MG dealer - just their approved third party garage so I'm hoping they can clear any reminders?