Vehicle Mileague Anomaly Check - A Comprehensive Guide in UK


Buying a used car can be a daunting task, especially when there's a risk of encountering mileage discrepancies or fraud. However, with the right knowledge and tools, you can protect yourself from falling victim to unscrupulous sellers. In this blog, we'll delve into the importance of mileage anomaly checks, how to detect fraudulent mileage and the role of the National Mileage Register (NMR). We introduce to you Car CheckUp, a reliable service for instantly checking your car's mileage history.

The Significance of Mileage Anomaly Check

A mileage anomaly check is a crucial step in the used car buying process. It helps you determine if the displayed mileage on a vehicle is genuine or if it has been altered fraudulently. Some dishonest sellers resort to reversing the mileage of a car to make it appear less used than it actually is, leading to an inflated price and potential safety risks for the buyer.

Detecting Fraudulent Mileage

Mileage discrepancies can occur due to various reasons, and detecting them is essential to ensure a fair deal. Here are some steps to help you identify fraudulent mileage:

1. Request MOT Certificates and Service Documents:
- MOT certificates and service records can provide insights into the vehicle's history.
- Match the recorded mileage in these documents to verify their consistency.


2. Talk to the Previous Owner:
- Reach out to the previous owner and ask about the mileage they sold the vehicle at.
- Cross-check this information with the vehicle's current displayed mileage.

3. Conduct a Mileage Clocking Check:
- Use reputable and best mileage history check services in the UK, Car CheckUp to obtain an accurate and comprehensive mileage reading for the vehicle.
- Look for any signs of mileage anomalies or discrepancies in the report.


Here is where we came to the rescue, Car CheckUp gives you peace of mind and a guarantee of the health of your vehicle before you purchase it.

The Role of the National Mileage Register (NMR)

The National Mileage Register (NMR) is a valuable database that helps detect odometer tampering or "clocking." Clocking involves rolling back the odometer to make the vehicle's mileage appear lower than it actually is. This deceptive practice aims to increase the car's value and deceive potential buyers.

The NMR maintains a record of vehicles' mileage readings over time, making it easier to spot discrepancies between recorded mileages in service records, MOT certificates, and other sources. By cross-referencing this data, the NMR helps identify potential cases of mileage fraud. Read our  MOT Check Blog to gain more insights about the subject.

Read above GOOGLE's most searched questions and their answers:

Why is it important to get a Mileage Anomaly Check?
Getting a Mileage Anomaly Check is crucial to protect yourself from potential fraud when purchasing a used car. Dishonest sellers may manipulate the mileage before showcasing the vehicle, only to revert it back to the correct mileage later. By performing a mileage anomaly check, you can uncover any tampering and ensure a fair deal.

How widespread are mileage discrepancies today?
Contrary to the misconception that mileage discrepancies are a thing of the past or limited to older vehicles, recent statistics from the Independent via HPI Check to reveal a concerning reality. Approximately 1 in 7 vehicles on UK roads in 2019 exhibited signs of mileage discrepancies, and this number continues to rise rather than decline.

How do I check for mileage discrepancies?
To check for mileage discrepancy, follow these steps:
1. Request the MOT certificates and service documents of the vehicle.
2. Match the recorded mileage in these documents to verify consistency.
3. Communicate with the previous owner and inquire about the mileage they sold the vehicle at.
4. Conduct a mileage clocking check with a reliable service like Car Checkup for an accurate mileage reading.

What is a mileage anomaly?
A mileage anomaly refers to suspicious mileage readings in a vehicle's history. This may indicate potential mileage clocking, where the vehicle's odometer has been tampered with to display a lower mileage. Such discrepancies should raise concerns, and it is advisable to exercise caution before proceeding with a purchase.

What is the National Mileage Register (NMR) check?

The National Mileage Register (NMR) is a database designed to detect odometer tampering or "clocking." If a car's mileage has been altered, the NMR helps identify such instances by maintaining a record of mileage readings over time. Utilizing the NMR check can reveal if a vehicle's odometer has been fiddled with in an attempt to deceive potential buyers.


How can I fix a mileage discrepancy on my MOT certificate?
In case of an incorrect mileage recording on your MOT certificate, there is no need to worry. You have 28 days from the test date to request the tester to correct the error. Once corrected, a new MOT certificate with the accurate mileage will be issued.

Can mileage correction be detected?
A: While devices can detect errors and system malfunctions in a vehicle, tracking mileage blockers is not feasible. Mileage blockers can go undetected, making it challenging to identify any tampering attempts. Therefore, it is essential to rely on reputable services like Car Checkup to ensure a comprehensive mileage history check.

What are the common causes of mileage discrepancies?
Mileage discrepancies can result from guessing or incorrect recording of odometer readings. Maintaining accurate and reliable records of the vehicle's mileage is essential to avoid discrepancies. Additionally, odometer fraud is a common cause of mileage discrepancies, where sellers alter the mileage to misrepresent the vehicle's true usage.

What can NMR detect?
A: Nuclear Magnetic Resonance (NMR) is widely used to determine the structure of organic molecules and study molecular physics and crystals. However, in the context of the National Mileage Register, NMR helps detect potential odometer tampering or mileage clocking in vehicles, aiding in identifying fraudulent mileage readings.

Car Checkup: Your Reliable Mileage History Checker

To ensure a hassle-free and trustworthy mileage history check, consider using Car CheckUp. With their easy-to-use platform, you can instantly access your car's mileage history and detect any anomalies or discrepancies. Car Checkup provides a comprehensive report that includes mileage readings, MOT details, and other essential information to help you make an informed decision about the vehicle you intend to purchase.


The importance of conducting a mileage anomaly check cannot be overstated when buying a used car in the UK. Detecting fraudulent mileage is essential to protect yourself from potential risks and financial losses. Utilize reputable services like Car Checkup and the National Mileage Register to access accurate mileage history and ensure the car you choose is genuinely represented.