MOT Due? Here's What We Check and What Fails Most Often Small Main Picture

MOT Due? Here's What We Check and What Fails Most Often

Tuesday 1st September 2026 at 10:55


MOT Due? Here's What We Check and What Fails Most Often

If you've got an MOT coming up, it's natural to feel a bit uneasy about it. Nobody likes the thought of an unexpected fail, a repeat visit, or a bill they weren't expecting. The good news is that most MOT failures come down to small, simple things that are easy to spot and put right before test day, if you know what to look for.

At Michael Key MOT & Servicing in Long Eaton, we test cars and vans every day, and we like our customers to understand exactly what we're checking and why. Here's a straightforward guide to what happens during your MOT, and the areas that most commonly catch people out.

Why the MOT matters

The MOT isn't just a box ticking exercise. It's a legal requirement for most vehicles once they reach three years old, and it exists to make sure your car or van is safe and roadworthy, both for you and for everyone else on the road. Every part of the test is there for a reason, even the bits that feel a bit fussy, like a cracked light lens or a worn wiper blade.

What we check during your MOT

During a full MOT, we work through your vehicle methodically, covering areas including:

  • Lights, indicators, and reflectors
  • Tyres and wheels, including tread depth and condition
  • Brakes, including the handbrake
  • Steering and suspension
  • Seatbelts and seats
  • Windscreen, wipers, and washers
  • Horn
  • Exhaust system and emissions
  • Mirrors
  • Bodywork and structure, checking for corrosion or damage in key areas

It's a thorough process, and we take our time over it. Our job is to give you an honest, accurate picture of your vehicle's condition, not just a pass or fail slip.

The most common reasons cars fail

Roughly one in three cars fails its MOT the first time it's tested, and the reasons are rarely dramatic. Based on our experience and wider industry data, the most frequent causes of failure include:

  • Lighting faults, such as a blown bulb, cracked lens, or misaligned headlight
  • Worn tyres, where the tread depth has dropped below the legal minimum of 1.6mm
  • Brake issues, including a handbrake that isn't holding as firmly as it should
  • Suspension wear, such as tired shock absorbers or springs
  • Washers and wipers that aren't clearing the windscreen properly

None of these are complicated or expensive to fix if they're caught early. That's really the message we want customers to take away. A few minutes of checking before your test can save you a retest and the inconvenience of being without your vehicle.

Five simple checks before you bring your car in

You don't need any special tools or knowledge for these. Give yourself ten minutes and check:

  1. All your lights are working, including number plate and brake lights
  2. Tyre tread and condition, looking for cracks, bulges, or uneven wear
  3. Washer fluid is topped up and the wipers clear the screen properly
  4. The horn works
  5. There are no dashboard warning lights on

If anything looks off, give us a call before your test date. We're always happy to have a quick look and put your mind at ease.

What happens if your car fails

If your vehicle doesn't pass, don't panic. We'll walk you through exactly what needs attention, in plain English, and give you an honest quote for the work. There's no pressure and no jargon, just a clear explanation of what's needed and why. Our aim is always to get you back on the road safely and with as little disruption as possible.

Book your MOT with us

At Michael Key MOT & Servicing, we've built our reputation in Long Eaton on being honest, efficient, and thorough. Whether it's your first MOT with us or your tenth, you'll get the same straightforward service every time.

Book your MOT today and let us take care of the rest. Safe, reliable vehicle repairs, that's our promise.

Book your MOT online or call us to arrange a convenient time.

MOT's, Servicing & Repairs in Long Eaton

Michael Key MOT & Servicing has been looking after cars and vans in Long Eaton since 1985. We're a family run team of skilled mechanics, and we pride ourselves on being honest, efficient and personal in everything we do.

Whatever you drive, you can count on us for quality work you can trust.

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About Michael Key MOT, Servicing & Repair
About us

We carry out MOTs, servicing, air conditioning, brakes and general repairs on any make or model, with particular expertise in Audi, BMW, Mercedes and VW cars, as well as Ford, Mercedes, VW and Iveco vans.

Find out more about us or book online today.

Safe, reliable vehicle repairs.

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Honesty and Expertise from Micheal Key MOT, Servicing & Repairs in Long Eaton
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Established 1985, we pride ourselves on our values and provide an expert service, honest advice, and a focus on safety & reliability. Read our reviews

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Book online or call us on 0115 973 3928

Michael Key 5 star review by Jason Gregory of Michael Key in Long Eaton

Jason Gregory

07/02/2024

Excellent garage, great staff. Highly recommended

Michael Key 5 star review by Sue Shutler of Michael Key in Long Eaton

Sue Shutler

14/06/2023

Can\'t recommend these guys highly enough. Helpful, professional, courteous- I had huge problems with my car which they diagnosed and gave honest advice to help me sort a bad situation with my car. Guarantee I will be using this garage in the future.