27/01/2022
What is an MOT Type 1 Defect?
The Ministry of Transport (MOT) test is a mandatory annual inspection for vehicles in the UK that are three years or older. Its primary purpose is to ensure that vehicles meet the required standards for road safety and environmental impact. During an MOT, a qualified tester will examine various components of your vehicle, from lighting and brakes to emissions and tyres. Any component that fails to meet the stringent requirements will be classified as a defect. These defects are categorised into three types: Minor, Major, and Dangerous. However, when discussing the MOT process, you might also hear about 'Type 1' and 'Type 2' defects. While not official MOT terminology used on the actual test certificate, these terms are often used informally by mechanics and garages to refer to specific types of issues identified during the inspection.
Understanding the Informal 'Type 1' and 'Type 2' Classifications
It's important to clarify that the official MOT test categorises failures as 'Advisory', 'Minor', 'Major', or 'Dangerous'. The terms 'Type 1' and 'Type 2' are not part of the DVSA's (Driver and Vehicle Standards Agency) official reporting system. Instead, they are commonly used within the automotive industry to broadly describe the nature of a failure and its immediate implications for the vehicle's roadworthiness.
What is Commonly Referred to as an MOT Type 1 Defect?
When a mechanic or garage refers to an 'MOT Type 1 defect', they are generally talking about a major failure or a defect that would cause the vehicle to fail its MOT test outright. These are issues that significantly impact the safety or environmental performance of the vehicle and require immediate repair before the vehicle can pass its MOT. Think of it as a critical fault that renders the car unsafe or illegal to drive in its current state.
These defects are typically categorised by the DVSA as 'Major' or 'Dangerous' failures. A 'Dangerous' defect means the vehicle is in a condition that poses a direct and immediate risk to the driver, passengers, or other road users. A 'Major' defect, while not immediately dangerous, will still cause the vehicle to fail its MOT because it significantly impairs the vehicle's safety, performance, or environmental standards.
Examples of MOT Type 1 Defects (Major/Dangerous Failures)
To illustrate what constitutes a 'Type 1' defect, consider these common examples:
| Component | Specific Defect | Reason for Failure (Type 1) |
|---|---|---|
| Brakes | Brake fluid level below minimum | Severely compromised braking efficiency, posing a dangerous risk. |
| Brakes | Brake pedal sinks to the floor under pressure | Indicates a serious fault in the hydraulic system, leading to a complete loss of braking. |
| Tyres | Tyre tread depth below 1.6mm across a continuous band | Illegal and unsafe, significantly reducing grip and increasing stopping distances. |
| Tyres | Tyre visibly damaged (e.g., large cuts, bulges) | Risk of catastrophic tyre failure at speed. |
| Lights | Headlight aim significantly incorrect (too high or too low) | Affects visibility and can dazzle other drivers, making the vehicle unsafe at night. |
| Lights | Front fog light not working | Essential for visibility in fog, failure means the vehicle is not equipped for certain conditions. |
| Steering and Suspension | Excessive play in steering wheel | Reduced control over the vehicle's direction. |
| Steering and Suspension | Damaged or worn suspension components (e.g., shock absorbers, ball joints) | Affects handling, stability, and tyre wear. |
| Exhaust System | Serious exhaust leaks | Can lead to carbon monoxide entering the cabin, posing a health hazard, and increased noise pollution. |
| Bodywork and Chassis | Significant corrosion to the chassis or structural components | Compromises the vehicle's structural integrity, making it unsafe. |
| Windscreen | Damage to the windscreen in the driver's primary field of vision | Obstructs the driver's view, a direct safety hazard. |
| Emissions | Excessive exhaust emissions (fails smoke test for diesel, or CO/HC/NOx limits for petrol) | Environmental hazard and indicates potential engine issues. |
What is Commonly Referred to as an MOT Type 2 Defect?
Conversely, 'Type 2 defects' are generally understood to refer to minor defects. These are issues that do not cause the vehicle to fail its MOT immediately but are noted by the tester as needing attention. They are often called 'advisories' on the official MOT certificate. While the vehicle will pass its MOT with these defects, it's recommended that they are repaired sooner rather than later to prevent them from becoming more serious problems or leading to a failure on a future MOT test. Ignoring these can lead to unexpected costs down the line.
Examples of MOT Type 2 Defects (Minor/Advisory Failures)
Here are some typical 'Type 2' defects:
- Slightly worn tyres (above the legal limit but showing signs of wear).
- Minor corrosion that does not affect structural integrity.
- Bulbs that are not the correct colour but still illuminate the road effectively.
- Worn but not excessively loose suspension components.
- Minor leaks from the exhaust system that do not affect emissions or noise levels significantly.
- A windscreen chip or crack outside the driver's primary field of vision.
- Brake pads worn close to the minimum thickness but still legal.
Why is Understanding These Classifications Important?
Although 'Type 1' and 'Type 2' are informal terms, they serve a useful purpose in communicating the urgency of repairs. Knowing the difference helps vehicle owners understand the severity of issues identified during an inspection:
- Immediate Safety: 'Type 1' defects highlight issues that compromise your immediate safety and the safety of others. Driving a vehicle with such defects is not only illegal but also extremely dangerous.
- Preventative Maintenance: 'Type 2' defects serve as early warnings. Addressing them proactively can prevent more significant and costly repairs in the future, ensuring the longevity of your vehicle.
- Planning Repairs: Understanding the nature of a defect allows you to plan your repairs accordingly. A 'Type 1' defect requires immediate action, while a 'Type 2' can be scheduled at your convenience, perhaps during your next service.
What Happens if Your Vehicle Fails an MOT?
If your vehicle fails its MOT due to a 'Type 1' (Major/Dangerous) defect, you will receive a refusal certificate. You will not be allowed to drive the vehicle on public roads until the necessary repairs have been made and the vehicle has passed a re-test. In most cases, the vehicle must be taken to a garage for repair and then re-tested. If the vehicle is deemed dangerous, it should not be driven at all, and you will need to arrange for it to be recovered to a repair centre.
If your vehicle fails with 'Type 2' (Minor/Advisory) defects, it will still pass the MOT test. However, you will receive a report listing the advisory items. It is your responsibility as the owner to ensure these are addressed to maintain the vehicle's roadworthiness and prevent future failures. Failure to do so could result in issues arising between MOT tests, potentially leading to a breakdown or an accident.
Frequently Asked Questions (FAQs)
Q1: Are 'Type 1' and 'Type 2' official MOT terms?
No, these are informal terms used by some garages and mechanics. The official MOT failure categories are Minor, Major, and Dangerous. Advisories are also noted.
Q2: Can I drive my car if it has a 'Type 1' defect?
No, if a 'Type 1' defect (classified as Major or Dangerous by the DVSA) causes your vehicle to fail its MOT, you cannot legally drive it on public roads until it is repaired and passes a re-test. If the defect is classified as Dangerous, you should not drive it at all.
Q3: What should I do about 'Type 2' defects?
While 'Type 2' defects (Advisories) mean your vehicle has passed its MOT, you should take them seriously. Arrange for the recommended repairs to be carried out to maintain your vehicle's safety and prevent future problems.
Q4: How much does an MOT test cost?
The maximum fee for an MOT test is set by the government. For cars, it's currently £54.85. Garages can charge less, but not more. The cost of any necessary repairs or re-tests is separate.
Q5: Where can I find the official list of MOT testable items?
You can find the comprehensive list of items tested during an MOT on the official UK government website (GOV.UK) by searching for 'MOT test requirements'.
Conclusion
While the terms 'MOT Type 1' and 'MOT Type 2' might not appear on your official MOT certificate, understanding their general meaning is crucial for any vehicle owner. 'Type 1' defects represent serious issues that require immediate attention and will cause a vehicle to fail its MOT. 'Type 2' defects are advisories, highlighting areas that need monitoring or future repair. By staying informed and addressing all defects promptly, you ensure your vehicle remains safe, legal, and reliable on the road, saving you potential hassle and expense in the long run.
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