Incorrect mileage on an MOT certificate becomes part of a vehicle’s official record, potentially raising fraud concerns, reducing its value, and causing compliance issues. Errors can be corrected through the test centre or DVSA, but delays increase complications. Most mistakes stem from human error, making accurate data entry and verification essential to preventing long-term problems. To prevent these errors altogether using smarter systems, choose TechMan.
Getting the mileage wrong on an MOT might seem like a small mistake, but it can have serious consequences. Whether it’s a simple data entry error or a misread odometer, wrong mileage on an MOT certificate can trigger red flags, affect a vehicle’s history, and even raise concerns with the DVSA.
For garages, it’s not just about correcting a number but about maintaining compliance and protecting your reputation. With MOT records forming part of a vehicle’s official history, accuracy is critical. Even an honest mistake can lead to unnecessary stress, delays and extra admin to make things right.
In this blog, we’ll explain what happens if MOT mileage is recorded incorrectly and how to fix it. We’ll also discuss how garages can prevent these errors from happening in the first place.
Accurate mileage on an MOT certificate is essential because it forms part of a vehicle’s official history. Each MOT records the mileage and stores it in a central database, creating a reliable timeline of how much the vehicle has been used.
This information helps verify wear and tear and supports fair vehicle valuation while also building trust with buyers, insurers and lenders. If the mileage is inconsistent, it can raise concerns about fraud (such as clocking) or poor record-keeping.
Even a simple mistake can make a vehicle look suspicious, reducing its resale value and creating unnecessary complications for both owners and garages.
If MOT mileage is recorded incorrectly, it’s logged on the official DVSA database and becomes part of the vehicle’s permanent history. This can immediately create a discrepancy, especially if the mileage appears lower than a previous reading, triggering a red flag for potential “clocking” or fraud.
Even a simple mistake can make the vehicle look suspicious to buyers, insurers and regulators. This may reduce the car’s value, delay a sale or complicate insurance claims.
In some cases, garages may also face scrutiny if errors appear inconsistent, making accuracy critical from both a compliance and reputation perspective.
Wrong mileage on an MOT is usually caused by simple, avoidable issues rather than anything serious. The most common reason is human error. For instance, technicians may mistype numbers or enter them in the wrong order during the test.
In some cases, the mileage is read incorrectly, such as taking the figure from the trip meter instead of the main odometer. Faulty or damaged odometers can also display incorrect readings, leading to inaccurate records.
Less commonly, discrepancies may be caused by deliberate tampering (clocking), where mileage is altered to make a vehicle appear less used.
If a vehicle owner spots the wrong mileage on their MOT certificate, they’ll need to act quickly. If the mistake was made within the last 28 days, they can contact the MOT test centre that carried out the test to correct the error and issue a replacement certificate.
If more than 28 days have passed, they’ll need to contact the Driver and Vehicle Standards Agency (DVSA) to request a correction. They’ll usually be asked to provide evidence, such as a service record, MOT invoice or job card showing the correct mileage on the test date.
Once approved, the DVSA will update the official MOT record, ensuring the vehicle’s history remains accurate and consistent.
Leaving incorrect mileage on an MOT unresolved can cause long-term problems. One of the biggest risks is a drop in vehicle value, as discrepancies make the car look suspicious and harder to sell.
It can also raise concerns about “clocking” (fraud), even if the mistake was genuine, which may damage trust with buyers and dealers. Insurance and finance providers may also treat inconsistent mileage as a risk, potentially leading to higher premiums, rejected applications or even refused claims.
TechMan can help stop mileage mistakes before they ever reach the MOT Testing Service. Using digital job cards and built-in technician prompts, the system guides staff to enter accurate information at every stage.
Because TechMan integrates directly with DVSA MOT data, technicians can quickly check a vehicle’s history and spot inconsistencies without leaving the system. If a mileage entry looks wrong, such as being lower than a previous record, the system can flag it instantly.
It can also require verification before the job is completed, reducing the risk of human error. Combined with paperless workflows and centralised data, this creates a more controlled and consistent process.
Built by garage owners, TechMan serves as a practical compliance safeguard, helping you avoid DVSA red flags, protect your reputation, and keep your MOT records accurate the first time.
Now that you understand the consequences of when an MOT mileage is recorded incorrectly, learn how to correct wrong mileage on MOT with the help of our garage management system.
TechMan’s garage management software is designed to make your garage’s daily operations easier and less stressful for everyone involved. It brings all the moving parts of your workshop, from streamlining your daily tasks to automating mundane processes, into one clear, manageable system.
With advanced features such as accounting, customer management, personnel management, stock control, and reporting, you can manage your garage operations better and keep everything running smoothly.
Click here to learn more about our features, or contact us to request a demo.
Explore TechMan in real-time in a working garage and see how our extensive integrations can simplify your operations and save hours of time every day.
