Carly — OBD2 car scanner
Carly Solutions GmbH & Co KG / Carly Solutions GmbH Co KG
About this app
- Category Productivity
- Age 10
- Updated Feb 11, 2025
- OS IOS / Android
Editor reviews
Carly — OBD2 Car Scanner is a mobile app that allows car owners to monitor and diagnose the health of their vehicles using an OBD2 scanner. OBD2 stands for On-Board Diagnostics 2, which is a system that cars use to monitor and report on various components like the engine, transmission, exhaust, and more. The Carly app, combined with a Carly OBD2 adapter, provides users with the ability to read diagnostic trouble codes (DTCs), clear error codes, view live data, and even perform customizations on compatible vehicles.
Carly supports a wide range of vehicle brands and models, making it a great tool for anyone who wants to stay on top of their car’s health, troubleshoot potential issues, and avoid costly repairs by identifying problems early. It’s especially useful for car owners who want to perform basic diagnostics and understand what’s happening under the hood without needing to visit a mechanic.
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How to use:
For Car Owners:
Download the Carly App:
Begin by downloading the Carly app from the Google Play Store or Apple App Store.
The app is free to download, but you’ll need the Carly OBD2 adapter (which can be purchased separately) to connect to your car.
Purchase the Carly OBD2 Adapter:
To use the app, you’ll need the Carly OBD2 adapter, which plugs into your car’s OBD2 port (usually located under the dashboard near the driver’s seat).
The adapter connects to your phone via Bluetooth or Wi-Fi to send data between the car’s onboard system and the Carly app.
Connect the Carly OBD2 Adapter to Your Car:
Plug the Carly OBD2 adapter into your car’s OBD2 port.
Make sure your car is in the "on" position (but the engine doesn’t need to be running).
Open the Carly App:
Open the Carly app on your phone and pair it with the Carly OBD2 adapter by turning on Bluetooth or Wi-Fi on your phone and following the on-screen instructions to connect.
The app will automatically detect your vehicle and begin syncing with the onboard system.
Scan for Diagnostic Trouble Codes (DTCs):
Once connected, use the Carly app to scan your vehicle for any existing diagnostic trouble codes (DTCs). These codes can provide insight into potential issues with your vehicle, such as problems with the engine, transmission, exhaust system, or battery.
The app will display a list of error codes, along with descriptions of the issues, so you can understand the nature of any problems.
Clear Error Codes:
If the scan detects any error codes, you can use the app to clear the codes. This can help reset the vehicle’s system and turn off the Check Engine Light (CEL) after fixing the problem.
However, it’s recommended to fix the underlying issue before clearing the codes, as the problem may return.
View Live Data:
Carly allows you to view live data from your vehicle’s sensors, including engine temperature, RPM, battery voltage, air-fuel ratio, and much more.
This real-time data can help you monitor the performance of various vehicle systems and identify potential issues before they escalate.
Perform Advanced Features (For Supported Vehicles):
Carly also offers advanced features for BMW, Audi, Volkswagen, Porsche, and other supported vehicles. These features allow you to:
Perform coding and customizations, such as changing settings for lighting, comfort features, and more.
Activate or deactivate vehicle functions, like enabling or disabling parking sensors, adjusting the auto-lock function, or setting up a more personalized driving experience.
Check service history, reset service intervals, and perform basic maintenance tasks directly through the app.
Monitor Vehicle Health Over Time:
Use Carly to keep an eye on your car’s health over time. The app logs vehicle performance data, so you can track changes and address any emerging issues promptly.
Perform a Battery Check:
The Carly app can also monitor the health of your car’s battery by providing detailed reports about the battery voltage and charging system, helping you avoid potential failures.
Save Reports and Share with Mechanics:
The app allows you to save diagnostic reports, which you can share with your mechanic for further analysis or repair suggestions.
This can save time and help the mechanic quickly understand the issue without needing to perform a full scan.
Receive Updates and New Features:
The Carly app regularly receives updates, so be sure to check for new features, such as added vehicle support or additional diagnostic tools, to get the most out of your scanner.