13/03/2004
What Happens If Your Car Fails Its MOT?
It's a worrying moment for any car owner: the MOT test result comes back, and it's a fail. In the UK, if your vehicle is over three years old, an MOT certificate is a legal requirement, proving it meets minimum road safety and environmental standards set by the DVSA (Driver and Vehicle Standards Agency). While a fail can feel like a setback, understanding the process and your options is key to getting back on the road swiftly and legally. At Ilkeston Service & Repair Centre, our highly qualified MOT testers use the latest equipment to ensure a thorough assessment, but even the best-maintained vehicles can sometimes fall short.

Understanding the MOT Fail Categories
When your car fails its MOT, you'll receive a 'refusal of an MOT test certificate' document. This document details the reasons for the failure and categorises them. It's crucial to understand these categories:
Dangerous Defects
These are the most serious issues. A vehicle with a dangerous defect should not be driven on the road at all. Driving a vehicle with dangerous defects can lead to immediate prosecution, hefty fines, and even disqualification. If your car has been identified with a dangerous defect, you can only drive it to a pre-arranged repair appointment at a garage. If your MOT test was carried out at a testing centre other than where you intend to get it repaired, you'll need to arrange recovery.
Major Defects
Major defects are also serious and require immediate attention. While not as immediately dangerous as 'dangerous' defects, they still mean your vehicle has failed the MOT. You can usually drive your car away from the testing centre, provided it passed its previous MOT and is still within its expiry date. However, you must get the necessary repairs carried out promptly to avoid any legal issues. It's highly recommended that you do not drive the vehicle until these repairs are completed and a re-test is passed.
Advisory Items
These are not failures, but they are points that the MOT tester has noted as being close to a failure point or something that may become a problem in the near future. It's wise to address advisory items sooner rather than later to prevent them from becoming actual failures in subsequent MOT tests. Think of them as preventative maintenance reminders.
Common Reasons for MOT Failure
Many common issues can lead to an MOT failure. Being aware of these can help you proactively maintain your vehicle:
| Area | Common Failure Points |
|---|---|
| Braking System | Worn brake pads/discs, leaks in brake lines, low brake fluid, faulty ABS warning light, uneven braking performance. |
| Tyres | Insufficient tread depth (below 1.6mm), cuts or bulges in the sidewalls, incorrect tyre pressures, mismatched tyres on the same axle. |
| Lights | Faulty bulbs (headlights, brake lights, indicators), incorrect headlight aim, missing lights, damaged light lenses. |
| Suspension | Worn shock absorbers, damaged springs, loose or corroded suspension components, excessive play in suspension joints. |
| Exhaust System | Leaks in the exhaust, excessive noise, corroded components, catalytic converter issues, high emissions. |
| Visibility | Damage to the windscreen (chips or cracks in the driver's line of sight), faulty windscreen wipers, insufficient washer fluid. |
| Steering and Suspension | Excessive play in the steering wheel, worn steering rack, loose or damaged steering components. |
| Body and Structure | Significant corrosion in critical areas (chassis, suspension mounts), sharp edges or protrusions posing a danger, damaged doors or latches. |
| Emissions | Failure to meet required emission standards for the vehicle's age and type. |
What To Do After Failing Your MOT
Once you have the fail certificate, you have a few options:
1. Get it Repaired and Re-tested at the Same Garage
If your car fails its MOT at a garage, you can leave it there for repairs. If the repairs are completed and the vehicle is re-tested at the same garage within 10 working days of the original test, you may only need a partial re-test. This is often quicker and more convenient as the tester can focus on the specific items that failed.
2. Get it Repaired and Re-tested Elsewhere
You can take your car to a different garage for repairs. However, if you choose this route, you will likely need a full, new MOT test once the repairs are done. This is because the new garage won't have the original test results to refer to for a partial re-test.
3. Drive to a Pre-Arranged Repair Appointment
As mentioned, if your car has a dangerous defect, you can only drive it to a pre-arranged repair appointment. If it has major defects but is still within its previous MOT's validity, you can drive it away, but it's strongly advised to get it repaired and re-tested as soon as possible.
The Re-Test Process
A re-test is designed to check if the specific issues that caused the initial failure have been rectified. The cost of a re-test can vary. Many garages offer a free or heavily discounted re-test if you have the repairs done with them, especially if the car is left for the work. If you take the car away and bring it back within 10 working days for a partial re-test, the garage may charge a reduced fee. If you have a full re-test at a different garage, you'll pay the full MOT test fee.

Can I Drive My Car Without a Valid MOT?
Generally, no. If your MOT has expired, you cannot legally drive your car on public roads. The only exception is if you are driving to a pre-arranged MOT test appointment or to a place of repair that has been pre-arranged. You could face a fine of up to £1,000 if you are caught driving without a valid MOT certificate, and your insurance may also be invalidated.
Preventing MOT Failures
The best way to deal with an MOT fail is to avoid it in the first place. Regular vehicle maintenance is key:
- Regular Servicing: Stick to your manufacturer's recommended service schedule. This will help identify potential issues before they become serious.
- Visual Checks: Make it a habit to check your tyres, lights, and wipers regularly. Look for any obvious damage or wear.
- Fluid Levels: Ensure your engine oil, coolant, brake fluid, and washer fluid are at the correct levels.
- Brake Checks: Listen for any unusual noises when braking and be aware of any changes in the brake pedal feel.
- Lighting: Regularly walk around your car and check that all your lights are working correctly.
Frequently Asked Questions
Q1: My MOT has expired, but my car passed last year. Can I still drive it?
No, you must have a valid MOT certificate to drive your car on public roads, unless you are driving to a pre-booked MOT test or repair appointment.
Q2: What is the time limit for a re-test after failing?
If you leave your car at the same test centre for repairs, you can have a partial re-test within 10 working days of the original test, often at a reduced cost.
Q3: Can I drive my car if it has 'advisory' items?
Yes, advisory items are not failures, but they are points to watch. It's best to address them to prevent future failures.
Q4: What if my car fails with a 'dangerous' defect?
You must not drive your car with dangerous defects. Arrange for recovery to a garage for immediate repair.
Q5: How much does an MOT re-test typically cost?
This varies. Many garages offer free or discounted re-tests if you have the repairs done with them. A partial re-test within 10 working days at the same garage is usually cheaper than a full re-test at a different one.
Conclusion:Failing an MOT can be a hassle, but with prompt action and understanding the process, you can get your vehicle back to roadworthy condition efficiently. Regular maintenance and awareness of common failure points are your best defence against an unexpected fail. If you're in the Ilkeston area and need an MOT or have failed and require repairs, the qualified team at Ilkeston Service & Repair Centre is ready to assist you.
If you want to read more articles similar to Failed MOT? What Next?, you can visit the Maintenance category.
