First things first, you need to find a good trustworthy garage whether you’re looking to get a MOT or Service. However you don’t just want someone who will do a good job, you also want someone who is going to give you a fair price, so make sure you have a look around, maybe do a few searches on the internet and get a good feel of how much garages are charging for the same thing.
Once you have a good feel for what you should be paying a good way of finding whether or not the garage is reputable, you can search and find if a garage has signed up to the Motor Industry Code of Practice which was introduced in 2008 for the soul reason of pushing garages to raise their standards. You should also spend a bit of time learning a little bit about your cars and a few standard procedures you can carry out yourself to make sure that your vehicle is as safe as possible. This includes things like checking engine oil and the tread on you tyres. These are things that effect everyone and every car, be it a second hand Suzuki Ignis or a brand new Bentley.