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Don't get tricked when buying a used car, perform a quick used-car check yourself!

Analyze the car for manipulation and insights on its state of health.

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Used Car

No salesman will be able to trick you. Check for the car mileage manipulation, detect serious mechanical problems, and more. Are you the one selling your car? Be transparent with any potential buyers by showing them what you see on the Carly app!

“NHTSA estimates that more than 450,000 vehicles are sold each year with false odometer readings. This crime costs American car buyers more than $1 billion annually.“

NHTSA - 2020
Do your own simple car inspection

Easily detect manipulation or a bad deal with your smartphone

Odometer fraud detection/
Odometer fraud detection

Check for the car mileage manipulation

Fraudsters that manipulate the odometer and reduce the mileage can sell the car for almost $3,000 more than the actual value. Carly's "Used Car Check" feature enables you to compare numbers from different devices with an electronic memory.

Car health analysis

Detect serious mechanical problems

Sometimes, there are faults in the car that the warning light hasn’t shown you — yet. As a car owner, you should be informed. Use the "Health" feature to get insights.

Odometer fraud detection
Odometer fraud detection
Sales credibility

Be transparent as a seller!

You're selling your car and you want to negotiate from a stronger position? Use Carly to show that no odometer tampering was performed and no serious faults are present.

The insights available depend on the car. Find out if Carly can check your car for manipulation.

How it works

Understand how the Used Car Check works

Used Car/

Carly sources KM/Mileage/Lifetime data and VIN from different ECUs (control units) of your car. These values have discrepancies in case of manipulation and tampering.

Other Carly features

Car Diagnostics
Car Maintenance
Car Customization
Car Diagnostics Car Diagnostics Phone
Car Diagnostics/

Car Diagnostics

Catch potential problems before they impact you.

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Car Maintenance Car Maintenance Phone
Car Maintenance/

Car Maintenance

Perform simple maintenance independent of the workshop, with one tap on the phone.

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Car Coding Car Coding Phone
Car Coding/

Car Coding

In modern vehicles, there are functions and settings that the manufacturer has not unlocked. Customize your car to fit your needs by unlocking them.

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The Carly Community

What other drivers say

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“Three times I looked at different cars and decided not to buy them thanks to Carly's used car control — which showed these vehicles had mileage manipulation.“
Michael, BMW 3 series
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Most Common Questions

Does this feature work for my car?
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The Carly Used Car Check works with the following brands: BMW, Mini, Audi, Skoda, Volkswagen, Seat, Toyota, Lexus, Mercedes, Renault, and Porsche. Whether it works for your car depends on the model and build year.
What do I need to do to get started?
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You just need the Carly Universal Adapter and a mobile phone to download our app Carly all-in-one. It runs on both Android and iOS and works for almost all car brands in the world. Plug the adapter in the OBD port, connect to the app, and start running your first diagnosis.
More answers to your questions