Avoid expensive workshop visits now

Car diagnostics without an appointment - Comfortably from home

Carly creates an error log. This is useful if the workshop suddenly wants to find and repair completely different errors. Based on the error logs, you can prove which error messages actually existed before the workshop visit.

Additionally, you get this evaluation as PDF.

Try out Carly now!

The diagnostic report

Identify car errors yourself - diagnostics at the manufacturer level

What our customers say:

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Easy to install.

After you have downloaded the appropriate Carly app on your smartphone, connect your smartphone via Bluetooth or W-LAN - depending on the version of the adapter. Once the connection has been established, you have access to the vehicle's data, and you can see which control modules spit out which errors.

You can even reset the fault memory to see if the error is really permanent.

The installation of the adapter is simple: The OBD2 connector is in most cases in the footwell of the driver. Once plugged in, the adapter is immediately active.

1. Switch on the ignition and insert the adapter into the OBD port

2. Connect the adapter to the mobile phone via the Carly app (iOs or Android)

3. Select Diagnostics (it takes 3min max.)

The OBD2 (Onboard Diagnostic Interface) socket lets modern cars communicate what they are missing. For this diagnosis, the workshops calculate proud prices. But with Carly, you can find the faults of your vehicle yourself in the same standard as the manufacturer. 

Thus at the garage, you can lead a conversation at eye level by specifying specific error codes instead of using amateur guesswork and get better advice. 

Nice side effect: If new defects occur during the repair, motorists can use the Carly protocol to prove that the workshop has caused the error.


See Carly in action

Youtube Video by Evan Goyuk

The best system for your car

With Carly, everyone can master the functions of their own vehicle. Even the functions that only the repair shop had access to! The smart app, together with the original Carly adapter, allows you to read and write car data. 

For example, a used car check can be performed to unmask manipulated vehicles or a comprehensive, in-depth diagnosis of the vehicle electronics in manufacturer quality, can be created or even unlock hidden functions. 

Carly is suitable for amateurs and professionals alike.

Carly can do so much more for you:

Used Car Check

In-Depth Diagnosis


Service Reset

Even reset service intervals and save money.

Customize your car and unlock hidden features, e.g., digital speedometer, start-stop automatic switch off, US daytime running lights.

All control units are analyzed, and the error codes are read out. The analysis corresponds to the manufacturer 's quality.

All control units are read out and compared to check whether someone tampered with the speedometer.

Live Parameter

NOx Desulfurisation

Diesel Particulate Filter Regeneration

Transmission Reset

Reset the automatic transmission, e.g., to relearn the car when buying a used car.

Regenerate Diesel Particle Filter at the push of a button.

Regenerate NOx catalyst at the push of a button and check.

Live monitor all motor parameters analyze like a professional, for example, temperatures and pressures.

Many more features


Real engine sounds through manual control of the exhaust flap even while driving.

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Carly is the specialist for connected car solutions


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