Mercedes-Benz cars are computers on wheels. If a simple sensor like an ABS wheel speed sensor fails, half of the systems in the car will be disabled. If you want to figure out the problem, you can either go to the dealer and pay an hour or two of work, or use a good diagnostic scanner to find out what’s causing the problem, which is too expensive to buy and requires a subscription.
There are some diagnostic scanners that come very close to the functionality of Star Scanner. A good Mercedes-Benz scanner can read all data from all control units. Not just codes that cause the check engine light to come on on your dash. The best scanners can go beyond generic OBD2 codes, read original equipment manufacturer (OEM) specific codes and even provide more information about your Mercedes-Benz.
Benefits of Using a Mercedes Star Diagnostic Scanner
The Mercedes Star Diagnostic scanner is used by dealers to access and diagnose every control system in your Mercedes-Benz. Initiate any sensor in the vehicle, run an initiation test, stream real-time sensor data, and read and clear fault codes. If you own a Mercedes-Benz dealership, this is a must-have item for you. All Mercedes-Benz SD control units, such as the engine ECU, ABS, Airbags, SRS, Aircon, Immobiliser, Keyless Entry, and the other control units used in Mercedes vehicles, are accessible. You can examine and delete faults, live data, actuate sensors, read current configuration, initialise, and much more.
Things to Know Before You Buy
There are a few things to consider before purchasing a Star Diagnostic System with Xentry for Mercedes-Benz.
Learning Curve: To effectively use the diagnostic scanner, you must first gain knowledge of how to use the Xentry software. While trying to read and clear fault codes is not hard, anything beyond that demands proper training. Yes, there are a few online guides on how to perform specific programming with Xentry. However, if you don’t perform the programming correctly, you may eventually wind up causing more problems than you solve.
SCN Online Coding: You will be unable to perform SCN coding of control units unless you purchase the scanner from an official Mercedes-Benz supplier. This is because the Mercedes Star Diagnostic scanner will attempt to connect to the Mercedes-Benz database for SCN code verification to activate certain controllers. You cannot do so unless you have purchased a valid licence. With that being said, some basic coding and programming of control units may be possible, but this programming can also be done with other sophisticated scanners.
Licensing: To access all of the capabilities provided by the Mercedes Star diagnostic scanner, you must sign up for an annual subscription and pay a licence fee. If you only work on one or two Mercedes-Benz models, this is not financially feasible.
What is the best Mercedes star diagnostic tool?
The Mercedes star diagnostic tool is becoming increasingly popular and many modern car workshops would be unimaginable without it. Each type of device has its unique characteristics, so many customers will find it difficult to choose the device that is best suited for their work.
1. MB Star C3 is a diagnostic device that supports old cars from 1989 to 2015 with functions such as: reading and clearing errors; read data from sensors; activate actuators; Programming and coding of ECU boxes in the car. If you regularly repair old Mercedes lines or trucks, MB Star C3 is a very good choice.
2. MB Star C4, C4 DOIP and MB Star C5
If you also need a Mercedes star diagnosis for old and new models (1989-2023), you can choose between MB Star C4, C4 Doip or MB Star C5. However, for new 2016 models that need standard doip connection, MB SD CONNECT C4 DOIP is the best choice. The Mercedes star diagnostic tool C4 Doip is 1:1 compare to the real C4, but the price is only 1/10 of the original C4, but still has all the functions like the real C4. MB Star C4 DOIP is rated as BEST CHOICE product in diagnostic equipment segment for Mercedes-Benz vehicles. Both C4/C4 DOIP and C5 have the same functions as MB Star C3.
3. MB Star C6
Xentry Diagnosis VCI Mercedes Benz C6 is the latest and most advanced specialized diagnostic tool for Mercedes models. MB Star C6 is an upgraded version of previously released MB Star C4 and C5. This is a perfect diagnostic version and the optimal solution for garages and workshops specialized in repairing Mercedes Benz models on the market.
MB Star Diagnosis Mercedes Benz C6 supports standard DoIP connection, which includes more features in SCN encryption than MB SD C4 and C5. Features include diagnostics, programming, simulation research, repair information, automatic maintenance, technical service bulletins, etc. However, the downside of the C6 is that it is quite expensive compared to other devices.
4. Autel MaxiSys Scanner
Autel manufactures professional-level diagnostic tools. The company makes high-end systems and creates an accessible diagnostic tool for DIY enthusiasts. The scanner has a color screen for easy reading of the codes. Its MaxiSys models can do almost everything the factory computer can, but it costs a lot. For a budget-friendly option, the MaxiSys would be a great scanner. It can retrieve generic and manufacturer specific codes, display freeze frame data and display the vehicle’s emissions status. MaxiSys is one of the more expensive scanners on this list, but it’s a good choice if you plan to program and code. Just don’t expect key programming, and that’s too complicated even for the Autel MaxiSys scanner.
Conclusion
The best scanner for Mercedes-Benz cars, SUVs, and Sprinter vans is without doubt the STAR scanner used by dealers. That doesn’t mean that it is the best option for Mercedes-Benz owners who are looking to skip going to the dealer for every warning light that comes on.