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Understand errors behind the engine light, delete error codes, expose odometer frauds, and more.
Get startedTop Carly features
What Carly users love most
Health
Understand your car's health
Carly can read out fault codes from all important built-in electronic control units. You will receive the exact same code any professional garage would, together with an interpretation of the severity.
Used car check
Detect odometer manipulation
Fraudsters can reduce the mileage and sell the car for almost $5,000 more than the actual value. Carly's Used car check" feature enables you to compare numbers from differenty devices with an electronic memory.
Health
Clear fault codes
After performing diagnostics, you get a fault report, but not every fault code implies a current defect. Clear the codes and perform a second diagnostic. The codes that stay need your attention.
“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.“
Your Mercedes unlocked
Access your Mercedes' features
Connect your smartphone with your Universal Carly adapter through the Carly App to find out what works for your unique car.
Carly can read out and clear fault codes that other scanners cannot. Carly reads from all built-in electronic control units (ECUs), including Engine, Transmission, ABS, Airbag, Multimedia, and more. In addition to reading the codes, Carly interprets the severity of the issues and saves your car's health history.
It’s important to catch potential problems before they cost you dearly - for example, engine-related issues can cost up to $10,000. Mechanics recommend running diagnostic sessions several times a year, but each session can easily cost you over $60.
Carly reads out and monitors detailed engine data, such as temperature and pressure values.
Live parameters or live data can help you take the guesswork out of understanding what your car needs or detect the fault origins. With this feature, you can also check the turbo boost pressure.
Works with all car brands.
Those who reduce car mileage can sell the vehicle for almost $5,000 more than the actual value. Carly sources KM/Mileage/Lifetime data and VIN from different ECUs (control units) of your car to detect cases of manipulation and tampering.
With the Used Car Check feature you’ll know if the car mileage was manipulated and more.
To check, if the feature is supported for your model, go here. It as well depends on the build year and the built-in hardware of your individual car.
Use the app to test emission relevant systems and procedures for exhaust systems of your car.
Catch emission issues yourself, before you get your car serviced and talk to your mechanic at eye-level.
With the OBD functions, read and delete all OBD engine and transmission fault codes, monitor your driving style and perform maintenance work with detailed data (e.g. oil temperature, rpm), or test emission relevant systems and procedures for exhaust systems (e.g. misfire check, fuel system etc.).
All of your past reports will be saved on your smartphone so you can refer back to them whenever and wherever you’d like. You can then generate official Carly PDFs and email them. The reports depend on the features that are available for your car.
Your Digital Garage provides a place to store diagnostic reports, used car check reports, and coding backups. It makes it easy to share it with your mechanic or potential car buyers.
What you can do with Carly varies from car to car. Get your adapter and find out what could work for yours.
Most Common Questions
