Is your MOT Test coming up? If so, check these ten items, they’re the most common causes of failure of the UK Test.
Top ten reasons for MOT failure

Fuel and Filller cap

Make sure your car isn’t running on fumes, there needs to be enough fuel to let the tester carry out the test.

The fuel cap needs to fit securely to pass the test.


This is a pretty easy one to test. If you can’t think how you might check this one, perhaps don’t drive.


Knocks and clunks are a giveaway that your suspension isn’t as well as it should be. Pressing down on corners of the car to see what happens is also a rough and ready way of checking. If the car bounces, rather than coming back to its normal position, you’ve got a problem.


This is a big one. The only part of the car that (should) be touching the road causes plenty of MOT issues.

Poor condition, like cracks in the rubber, to bulges and slow punctures. All are fails, but a simple inspection can reveal issues you need to deal with.

Don’t forget to check the tread, too, the 20p test is a good rough and ready guide.

Check out our Tyre Safety Guide.


Cracks and chips can cause your car to fail the MOT test. If your screen has a crack longer than 4cm or any chip or crack that covers 1cm or more, in the area the wipers clean, it’s a fail.

If you have anything stuck to the windscreen, it can’t obscure your view of the road.


Another easy one to check, and solve, are the windscreen wipers. Look for signs of them perishing or splits and cracks. While you’re at it, make sure your screen wash is topped up, too.

Brake Lights.

Make sure these, in fact all, of your lights are working. Either have someone check for you or you could reverse up to a wall, slowly, to check they both light up.

You know how many times you’ve seen someone driving with lights that don’t work, don’t let it be you. Most are very easy to change, so get to it!

Numberplate and bulb.

While we talk about bulbs, don’t forget the number plate bulb, it has to work. The plate itself needs to be legible, too.

Seats and Seatbelts.

Are you sitting comfortably? The seat should slide smoothly when adjusting position. The seat belts need to be in good condition with no tears or frays. It should also recoil back in to place, on it’s own, after you pull it out.


You love to accelerate, the thrill of speed. Slowing down is pretty good, too. You shouldn’t need telling that having working brakes is a necessity for yours and others safety.

As well as coming to a stop from moving, the hand brake also needs to work, so keep on the look out for signs of problems like the cable going slack.