Mot and service in Caversham Heights Reading right now? Why do you need an MOT? You need to take your MOT every year, if the vehicle is older than three years old. On your most recent certificate, it will have an expiry date – you will need to take the next up to a month before that date, but your new expiry will keep its original expiry day (it should be the same every year). There is no grace period with an MOT – once it is expired, you could…