Many motorists will argue that it is an expensive process where your car just goes in for an MOT twice and you get overcharged for things that have already been checked. Wrong! A service is also mainly an inspection, so if you book the wrong one, it will carry out many parts of an MOT test inspection but not all of them . A service is needed in addition to the MOT each year, because it includes changing some ‘service items’ and stripping down some key safety components.
Furthermore, going in for a service will probably save you more money than if you didn’t get your car serviced. An unserviced vehicle is likely to have a shorter life expectancy and higher fuel costs, whilst potentially being more unsafe. If you were to have a crash and your car hadn’t been serviced it would necessarily invalidate a claim but if it’s declared a total loss they may take the service history into account when calculating its pre-accident value, which could mean you ending up out of pocket and paying for any damage.
In conclusion, you should go for your dated service as it is more than an MOT and most likely more important than an MOT which can save your life and is more cost effective. Why wait 12 months? Anything can happen in that time to your car , go twice a year and narrow the chance to 6 months.