Review Of Launch CRP 123 Professional Diagnostic Tool For Mercedes-Benz SUV And Cars

Giancarlo Perlas December 7, 2023

Navigating through Mercedes-Benz SUV and car dashboard warnings or suspected issues can sometimes be tough because of these luxury vehicles’ sophisticated engineering. With cutting-edge technology woven into their components, identifying and resolving problems demands a nuanced understanding of the complex systems at play.

In this context, the Launch CRP 123 Professional OBD-II diagnostic scanner comes as a potential game-changer for investigating what may be causing the problems you are experiencing with your Mercedes SUV or car.

Key Features

The Launch CRP 123 Professional is a powerful diagnostic tool that’s as compact as a gaming device. It sports a 3.5-inch screen and a design reminiscent of the Nintendo Switch.

The tool’s 10.3-ounce weight provides a welcome relief compared to bulkier alternatives, making it handy for periodic diagnostic routines and during unexpected hiccups with your auto during your journey. The device includes a 16GB microSD card, a USB cable, and an OBD cable.

Weighing the Pros and Cons

The notable advantages of the Launch CRP 123 Professional include a wide-colored screen, an array of diagnostic modes, support for multiple languages, and a user-friendly interface. These ensure a bang for your buck for $146. Additionally, the inclusion of a USB port and 16GB microSD card allows for the seamless transfer of data between the device to your personal computer or for updating firmware as needed.

However, some product reviews stress out two drawbacks. Launch CRP 123 Professional has a relatively short cable and it does not have a touchscreen. These limitations could impact the scanner’s usability, particularly when you are working on components deep in the car’s engine bay. That means you will have to leave your spot from time to time to get closer to the device if you want to do another scan along the way. Meanwhile, people who are accustomed to touch-controlled devices may find it unappealing.

Performance in Mercedes-Benz SUV and Cars

The Launch CRP 123 Professional has a plug-and-play operation. All you have to do is plug its cable into the scanner and the OBD-II port of your Mercedes SUV or car. After that, the scanner will promptly power up its screen where you can choose the function that you want to use such as Diagnose, Settings, and Help. From there on, everything will be self-explanatory because the prompts are not so complicated to follow.

User reviews mostly highlight the versatility of the diagnostic tool in conducting a range of tests, from scrutinizing the catalytic converter and oxygen sensor to addressing issues with anti-lock brakes and airbags, and more. They also praise the CRP 123’s ability to reset the oil change light and adjust the steering wheel angle.

Furthermore, it provides extra features like I/M Readiness assessment and detecting the Vehicle Identification Number (VIN). All these showcase its comprehensive utility for Mercedes-Benz owners.

Recommendation for Mercedes-Benz SUV and Car Owners

For Mercedes-Benz owners seeking a reliable and affordable diagnostic tool, the Launch CRP 123 Professional emerges as a commendable choice. Despite the limitations of a short cable and the absence of a touchscreen, its robust performance in diagnosing crucial components coupled with a user-friendly interface makes it a valuable asset for both home mechanics and professionals alike.

The scanner’s ability to handle tasks beyond routine diagnostics, such as resetting dashboard warning lights and conducting readiness tests, adds to its overall appeal.

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About Author

Giancarlo Perlas

Giancarlo is an economist by profession with a career spanning nearly two decades. His professional journey has seen him assume vital roles in various government and private organizations. Alongside his civic and corporate pursuits is his love for cars, particularly those made by Mercedes-Benz. In 2012, he found himself with like-minded individuals within BenzInsider. From then on, he used the platform as a way to share his passion with the automotive community. Follow his Facebook page at, X (formerly Twitter) @giancarloperlas, and IG @benzinsider. View all posts by Giancarlo Perlas →

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