What happens if a car fails its MOT?

Failed Your MOT? Here's What's Next

10/12/2013

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Discovering your car has failed its MOT can be a genuinely stressful moment for any motorist. It's not just the immediate inconvenience; there's the looming worry of unexpected repair costs and the question of whether your vehicle is even safe to drive. This scenario is far more common than many realise, with government statistics revealing that between October and December 2023, over 29% of cars initially failed their MOTs. That's a staggering 2,092,446 vehicles out of 8,804,478 tests that didn't meet the required safety and environmental standards. While it might feel daunting, understanding the immediate next steps and your options can significantly ease the process, helping you get your car back on the road both safely and legally. This comprehensive guide will walk you through everything you need to know if your car fails its MOT, providing clarity and practical advice.

Do I need a paper Mot?
From May 2024 onward, paper MoTs have only been issued on request for environmental reasons and it is no longer a legal requirement to have a paper copy. Looking for a garage you can trust? Honest John's Good Garage Guide has thousands of reader recommended garages, plus how-to guides and tips on servicing.
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What to Do Immediately After an MOT Failure

If your vehicle receives a 'fail' on its MOT certificate, your immediate actions depend on the nature of the defects found and the validity of your existing MOT certificate. Generally, you have a few options, with the most straightforward often being to address the issues directly at the test centre where the failure occurred.

The test centre can usually carry out the necessary repairs to bring your vehicle up to the required standard. A significant advantage of this approach is the potential for a free partial retest. If the repairs are completed at the same test centre and within 10 working days of the original failure, your vehicle will only need a re-inspection of the failed items, which is typically conducted free of charge. This can save you both time and money. It's crucial to understand that if you take your car elsewhere for repairs, or if the repairs take longer than 10 working days, a full retest will be required, incurring the standard MOT fee again.

Can You Drive Your Car After an MOT Failure? Understanding the Rules

This is perhaps one of the most pressing questions for any driver whose car has failed its MOT, and the answer is nuanced, depending entirely on the specific circumstances of your failure.

If Your Current MOT Certificate is Still Valid:

You might be able to drive your vehicle away from the test centre if your previous MOT certificate has not yet expired. However, there's a critical caveat: this is only permissible if the test did not report any 'dangerous' defects. If the vehicle has been deemed 'dangerous' by the MOT tester, you are absolutely forbidden from driving it on public roads. Doing so carries severe penalties, as detailed below.

If Your Current MOT Certificate Has Expired (or the Failure Results in Expiry):

If your car fails its MOT and the date on your last certificate has already passed, or if the failure means your car is no longer legally roadworthy, you are generally not permitted to drive it on public roads. There are very limited exceptions to this rule:

  • You can drive it directly to a pre-booked appointment at a garage for repairs to fix the failed items.
  • You can drive it directly to another pre-booked MOT test appointment.

Even in these specific scenarios, the vehicle must be roadworthy. This means that if it failed due to a 'dangerous' defect, you cannot drive it at all, even to a garage or another test. In such cases, the only legal option is to have the car recovered or towed.

Penalties for Driving a Failed Vehicle:

Breaking these rules can lead to serious legal consequences and may also invalidate your car insurance, leaving you unprotected in the event of an accident. Driving a car that has failed its MOT due to a 'dangerous' problem is particularly risky and can result in significant fines of up to £2,500, three penalty points on your licence, and even a driving ban. It is paramount to prioritise safety and legality when dealing with an MOT failure.

Common Reasons for MOT Failure

While an MOT test covers a wide array of vehicle components, certain issues repeatedly emerge as the primary culprits for failures. Understanding these common pitfalls can help you identify potential problems before your test date. According to recent statistics, the most frequent defect category leading to MOT failure is 'lamps, reflectors and electrical equipment', accounting for nearly 26% of all defects in the first part of 2022. This broad category includes everything from a simple blown headlight bulb to more complex wiring issues.

Other significant contributors to MOT failures include:

  • Suspension (18.63%): Issues here can range from worn shock absorbers and broken springs to damaged linkages. A healthy suspension system is vital for vehicle handling, comfort, and safety.
  • Brakes (15.94%): This critical safety system often fails due to worn brake pads or discs, leaking brake fluid, or issues with the anti-lock braking system (ABS). Effective braking is non-negotiable for road safety.
  • Tyres (12.53%): Tyres fail for various reasons, including insufficient tread depth (the legal minimum is 1.6mm across the central three-quarters of the tread around the entire circumference), damage like cuts or bulges, or incorrect tyre pressure.

Essentially, anything that compromises your car's safety, environmental standards, or renders it 'not roadworthy' will result in an MOT failure. This includes issues with the steering, exhaust emissions, seatbelts, windscreen, and even the horn.

Table 1: Common MOT Failure Categories and Percentages (Early 2022 Data)

Defect CategoryPercentage of FailuresCommon Issues
Lamps, Reflectors & Electrical26%Blown bulbs, incorrect alignment, faulty wiring, damaged lenses
Suspension18.63%Worn shock absorbers, broken springs, corroded components
Brakes15.94%Worn pads/discs, fluid leaks, ABS faults, uneven braking
Tyres12.53%Insufficient tread depth, sidewall damage, bulges, incorrect size
SteeringApprox. 7%Excessive play, worn components, power steering fluid leaks
VisibilityApprox. 5%Windscreen cracks, wiper blade effectiveness, washer fluid issues

How to Avoid an MOT Failure: Pre-Test Checks

The best defence against an unexpected MOT failure, and the associated stress and costs, is proactive maintenance and a thorough pre-MOT check. Regular servicing throughout the year is invaluable, but even a quick inspection of key components before your test can make a significant difference. Here are some essential checks you can perform yourself:

  • All Lights Working: This is one of the easiest checks. Turn on your headlights (full and dipped beam), sidelights, indicators (front, rear, and side repeaters), brake lights, fog lights (front and rear), and reverse lights. Don't forget your number plate lights. Have someone stand behind the car to check brake lights as you press the pedal. Replace any blown bulbs immediately.
  • Tyre Condition: Check the tread depth across all four tyres, including the spare if applicable. Use a 20p coin to check tread depth – if the outer band of the coin is visible when inserted into the main grooves, your tread might be below the legal limit. Also, inspect the tyre sidewalls for any cuts, bulges, or signs of perishing. Ensure tyre pressures are correct according to your vehicle's handbook.
  • Brake Performance: While you can't thoroughly test your brakes at home, you can listen for any grinding noises or feel for sponginess in the pedal. If you notice any issues, have them professionally inspected.
  • Windscreen and Wipers: Inspect your windscreen for any chips or cracks, particularly within the 'swept' area of the wipers. A crack larger than 10mm in the driver's immediate line of sight (a 290mm wide band centred on the steering wheel) or 40mm elsewhere in the swept area will result in a failure. Check your wiper blades are clean and effectively clear water from the screen without smearing. Ensure your washer fluid reservoir is topped up and the jets are working correctly.
  • Fluid Levels: Check engine oil, brake fluid, power steering fluid, and coolant levels. While not all directly part of the MOT, low levels can indicate underlying issues that might lead to failure or affect other components.
  • Horn: Give your horn a quick test to ensure it emits a continuous, uniform sound.
  • Seatbelts: Pull each seatbelt firmly to ensure it locks correctly. Check for any cuts, fraying, or damage.
  • Number Plates: Ensure your front and rear number plates are clean, legible, and securely fastened. Incorrect fonts or spacing will result in a failure.
  • Mirrors: All mirrors must be securely fitted and provide an adequate view. Check for cracks or damage.

Adopting a routine of these simple checks can significantly increase your chances of passing your MOT first time, saving you time, money, and hassle. Remember, an MOT is a snapshot of your car's condition on the day of the test; consistent maintenance ensures your vehicle remains safe and roadworthy all year round.

Appealing a Failed MOT Result

While uncommon, there might be instances where you genuinely believe your vehicle has unfairly failed its MOT. If you are absolutely certain that the test result was inaccurate or that the tester made a mistake, you have the right to appeal the decision.

The first step in the appeal process is always to communicate directly with the testing centre where the MOT was conducted. Express your concerns calmly and clearly, giving them an opportunity to explain their findings or rectify any potential oversight. Do not allow any repairs to be carried out on your vehicle before lodging an appeal, as this could compromise the inspection process.

If you remain dissatisfied after speaking with the centre, you can then proceed with a formal appeal to the Driver and Vehicle Standards Agency (DVSA). You must send a complaint form (VT17) to the DVSA within 14 working days of the original test date. The DVSA will then arrange for an independent MOT examiner to re-examine your vehicle. Be aware that you will have to pay for this re-examination, but this fee will be refunded if your appeal is successful. It's important to provide as much detail as possible in your complaint regarding why you believe the failure was incorrect.

The Importance of Your MOT and Insurance

Beyond being a legal requirement, the MOT test serves a crucial purpose: to ensure that your vehicle meets minimum road safety and environmental standards. It's designed to protect not only you and your passengers but also other road users. Driving a vehicle that hasn't passed its MOT, or one with a 'dangerous' defect, is not only illegal but also incredibly irresponsible.

Furthermore, a valid MOT certificate is often a prerequisite for your car insurance policy. While some policies might offer limited cover if your MOT has expired for a very short period (e.g., driving to a pre-booked test), most standard policies will be invalidated if your vehicle is found to be unroadworthy or is being driven without a current and valid MOT certificate. This means that in the event of an accident, your insurance provider may refuse to pay out for damages or injuries, leaving you liable for potentially enormous costs. Always ensure you're covered, and that your vehicle is legally compliant.

Frequently Asked Questions (FAQs) About MOT Failures

What's the difference between 'Minor', 'Major', and 'Dangerous' defects?
MOT defects are categorised based on their severity. Minor defects are issues that are not immediately dangerous but should be repaired soon. They are recorded on the MOT certificate but do not result in a failure. Major defects are more serious issues that could affect the vehicle's safety or impact the environment, and they result in an MOT failure. Dangerous defects are those that pose a direct and immediate risk to road safety or the environment. A dangerous defect means the vehicle must not be driven until it's repaired, and driving it carries severe penalties.
How long do I have to get repairs done after an MOT failure?
There's no strict legal deadline for repairs, but if your existing MOT certificate has expired, you cannot drive the car on public roads except to a pre-booked repair appointment or MOT retest. If you want to qualify for a free partial retest at the same centre, you typically need to complete the repairs and have the vehicle retested within 10 working days of the original failure.
What is an MOT partial retest?
A partial retest, often free, is offered if your vehicle fails its MOT but is repaired at the same test centre and returned for retest within 10 working days. Only the components that initially failed are re-inspected, not the entire vehicle. If you take the car elsewhere or exceed the 10-day window, a full retest will be necessary.
What happens if I don't repair my car after it fails its MOT?
If your car fails its MOT and its previous certificate has expired, you cannot legally drive it on public roads until it passes a new MOT. Driving it without a valid MOT, or with 'dangerous' defects, can lead to substantial fines, penalty points, and potential driving bans. Furthermore, your insurance may be invalidated. It's crucial to get the necessary repairs done promptly.
Can I get my car retested at a different garage?
Yes, you can. However, if you take your vehicle to a different garage for repairs or retesting, you will almost certainly have to pay for a full MOT test again, as the free partial retest is usually only offered by the original test centre within the specified timeframe.

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