For automotive diagnostic professionals deeply invested in the Mercedes-Benz ecosystem, the evolution of diagnostic tools is a constant consideration. With the phasing out of the legacy C4 multiplexer in recent Xentry versions and the increasing prevalence of laptops devoid of LAN/Ethernet ports, the shift towards USB-connected Vehicle Communication Interfaces (VCIs) becomes not just preferable, but essential. While workarounds like WLAN or USB-LAN converters exist to prolong the life of C4, they ultimately represent a bridge to the past. For those of us who value the reliability of wired connections, especially when flashing control units – a process where WLAN interruptions can lead to irreparable damage – a direct USB VCI solution is the clear path forward.
Modifying Xentry to accommodate C4 might offer a temporary reprieve, but strategically, it’s not a sustainable long-term approach. The question then becomes: which VCI model best suits the needs of a modern Mercedes-Benz technician? Let’s explore the viable alternatives to the C4:
- Genuine Mercedes VCI C6 (Bosch MTS6532): The official, Mercedes-branded VCI C6, manufactured by Bosch (MTS6532) but with proprietary firmware and housing.
- Pre-owned or Refurbished Mercedes VCI C6: A more budget-conscious entry point into genuine C6 hardware.
- Cloned Mercedes VCI C6: Aftermarket versions aiming to replicate the functionality of the genuine C6 at a lower cost.
- VXDIAG VCI C6 or SE: Popular aftermarket VCIs offering compatibility with various diagnostic platforms, including Xentry.
- J2534 Devices (e.g., Openport, Scanmatik 2 PRO, MDI): Generic automotive interfaces adhering to the J2534 standard, offering broad compatibility.
- Super MB PRO M6: Another aftermarket option in the multiplexer category.
While numerous multiplexers populate the market, some are simply C4 clones in different enclosures, facing obsolescence or being replaced by VXDIAG or J2534 solutions. My specific requirements for a replacement VCI were clear:
- Seamless XDOS Compatibility: Essential for integration with my existing diagnostic software.
- Driverless VCI Operation: The VCI should function natively within Xentry, eliminating the need for external drivers or software.
- Centralized Administration via VCI Manager: Configuration and management should be integrated into the Xentry system configurator using the VCI Manager.
Considering these criteria, a VCI C6 clone emerged as the most compelling option. The prohibitive cost of a genuine VCI C6 – upwards of 3000 euros and often difficult to procure – made it less appealing. Used or refurbished genuine units, while more affordable (starting around 1600 euros), still represented a significant investment, often without warranty or return policies. A VCI C6 clone, priced around $450, presented a calculated risk. While returns to China can be challenging, the financial exposure is considerably lower.
Alt text: A Mercedes-Benz Xentry C6 VCI diagnostic interface device, highlighting its compact design and USB connectivity, essential for modern automotive diagnostics.
But why dismiss alternatives like VXDIAG, Openport, and other J2534 devices? My experience with VXDIAG, while functional, wasn’t significantly more cost-effective and introduced usability hurdles. License renewal complexities, especially in areas with limited internet access, posed a real workflow disruption. Furthermore, VXDIAG’s compatibility with Vediamo remained elusive, at least within my expertise. These factors steered me away from VXDIAG and similar options.
Ultra-budget systems sometimes bundle Openport, but its J2534 architecture restricts it to the PassThru version of Xentry. My preference for the comprehensive XDOS version rendered J2534 devices unsuitable. Similar considerations led me to bypass MDI and Scanmatik devices for my primary Mercedes-Benz diagnostics.
However, I do utilize an Opel MDI clone with GDSII on a separate, internet-connected laptop. This setup, augmented with MBTools, allows for MBTools functionality on various Mercedes models, at least currently.
The Super MB PRO M6, while marketed as a distinct entity from C4, ultimately functions as a C4 clone. While newer iterations might incorporate modifications, past negative experiences with a previous “bricked” unit deterred further investigation.
My experience with the VCI C6 clone over the past three months using Xentry OpenShell version 09.2023 has been overwhelmingly positive. Compared to the C4, the clone exhibits noticeably enhanced speed and stability, surpassing even regular multiplexers. While the genuine VCI C6 includes a dedicated WLAN USB stick, my clone arrived without one. Crucially, administration is seamlessly handled within Xentry’s VCI Manager, requiring no supplementary drivers or software.
Initially, the delivered C6 clone was non-functional. However, the vendor promptly provided updated firmware via TeamViewer, resolving the issue, and it has operated reliably ever since. The package included only a 3-meter USB cable and an OBD connection cable. Cables for older 38-pin connectors or Sprinter models were absent, though unnecessary for my current vehicle range. While I’m uncertain if adapters exist for connecting to older vehicles with the C6 clone, I anticipate compatibility mirroring the genuine version, which, to my understanding, supports legacy models.
Alt text: A screenshot of the Xentry VCI Manager interface, demonstrating the centralized configuration and management of the VCI C6 device within the Mercedes-Benz diagnostic software environment.
Given the comparable price point between VCI C6 clones and C4 multiplexers, I believe the VCI C6 clone will become the preferred choice for users with similar needs. Based on my experience to date, I confidently recommend the VCI C6 clone as a viable and effective diagnostic solution. For inquiries or further discussion, please feel free to reach out or leave comments below.
