What is the best Mercedes star diagnostic tool?


Mercedes star diagnostic tool is increasingly popular and is an indispensable device in many modern car repair garages. Each type of device will have its unique features, so many customers will have difficulty choosing the device that is most suitable for their work. Knowing that Eurocartool will analyze the differences between each device to help you understand the product you are looking for and choose the exact device you need.

Features of Mercedes star diagnostic tool

Below are the features of each diagnostic device as well as some reviews from customers who have used Eurocartool products and also the experiences that our technical team previously repaired the vehicle.

MB Star C3

C3 is a diagnostic device that supports old cars from 1989 to 2015 with functions such as:

  • Read and clear errors
  • Read data from sensors
  • Activate actuators
  • Programming and coding ECU boxes on the car

If you regularly repair old Mercedes lines or trucks, MB Star C3 is a very good choice.

MB Star C4, C4 DOIP and MB Star C5

If you need a Mercedes star diagnostic too for both old and new models (1989-2022), you can choose MB Star C4, C4 Doip, or MB Star C5.

Device C4

However, for new models from 2016 that need a standard Doip connection, MB SD CONNECT C4 DOIP is the best choice to use.
Mercedes star diagnostic tool C4 Doip is 1:1 compared to the genuine C4, but the price is only 1/10 of the original C4 but still has all the functions like the genuine C4. MB Star C4 DOIP is rated as the BEST CHOICE product in the segment of diagnostic equipment for Mercedes-Benz vehicles.
Both C4/C4 DOIP and C5 possess the same functions as MB Star C3.

MB Star C6

Xentry Diagnosis VCI Mercedes Benz C6 is the latest and most advanced specialized diagnostic equipment for Mercedes models. MB Star C6 is an upgraded version of the previously released MB Star C4 and C5. This is a perfect diagnostic version and the optimal solution for garages, and service shops specializing in repairing Mercedes Benz models on the market.


MB Star Diagnosis Mercedes Benz C6 supports standard DoIP connection, which includes more functions in SCN Encryption than MB SD C4 and C5. Functions include diagnostics, programming, simulation research, repair information, auto maintenance, technical service bulletins, etc. However, the disadvantage of the C6 is that it is quite expensive compared to other devices.

Software compatibility

Name device MBMB Star C3MB Star C4MB Star C4 DOIPMB Star C5MB Star C6 VCI
Software CompatibilityFactory HDD/SDD onlyFactory HDD/SDD,

Original software factory

Factory HDD/SDD,

Original software factory

Factory HDD/SDD,

Original software factory factory

Factory HDD/SDD only update by update by
DTS MonacoYesYesYesYesYes
Star FinderNoYesYesYesYes
New MercedesNoYesYesYesYes
Old MercedesYesYesYesYesNo

Recently all the features and compatibility of each diagnostic device for Mercedes that we have listed. In short, depending on the demand each of you will have a separate option, but MB SD Connect C4 DOIP is assessed by Eurocartool as the most comprehensive diagnostic device to date compared to the price of the product being offered for sale.
Are you still wondering and can’t choose your device???? Eurocartool is always ready to support and advise you 24/7 on all devices as well as software!!! Contact us via WhatsApp: +84 388951999  or the website

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