Xentry OpenShell 06.2026 is the June 2026 release of Mercedes-Benz's XENTRY Diagnosis OpenShell platform — the dealer-grade diagnostic and programming system for all Mercedes-Benz passenger cars, vans, Smart, Maybach, and FUSO vehicles. It runs fully offline after activation, provides the complete XENTRY diagnostic scope, and is designed for use with SDConnect C5, C6 VCI, and VXDIAG-compatible interfaces on Windows 10 64-bit systems. This page provides the Xentry OpenShell 06.2026 installation file. Activation and SDConnect C4 compatibility (where applicable) are available as separate services — see the activation options below. Version: 06.2026 (June 2026 — latest OpenShell release) Brand: Mercedes-Benz Category: Diagnostic Software Platform: XENTRY Diagnosis OpenShell (XDOS) File size: approximately 15 GB Vehicle coverage: All Mercedes-Benz passenger cars, vans, Smart, Maybach, FUSO — models from 2000 onward; 2021+ DoIP models with ZenZefi certificate Compatible interfaces: SDConnect C5, SDConnect C6 VCI, VXDIAG VCX SE MB, C6 VCX OS: Windows 10 64-bit (required) — Windows 11 64-bit supported on most configurations Mode: Fully offline after activation — internet not required for daily diagnostic use Important — C4 Compatibility Note From the 03.2026 release generation onward, Xentry OpenShell XDOS has dropped native SDConnect C4 support. If you are using an SDConnect C4 or C4 DOIP device, you will need the SDConnect C4 activation service to restore compatibility with this version. SDConnect C5 / C6 VCI / VXDIAG VCX SE MB: Fully supported natively in 06.2026 SDConnect C4 / C4 DOIP: Requires separate C4 activation — available as an add-on service from CarSoftz. See SDConnect C4 Activation page. If you use SDConnect C4 exclusively: Consider the Xentry OpenShell SDConnect C4 service which includes full C4 compatibility setup. What This Version Is For Xentry OpenShell 06.2026 is the recommended starting point for any new Mercedes-Benz diagnostic environment using C5, C6, or VXDIAG hardware. As the most current XDOS release, it carries the most complete vehicle database — including the newest W214 E-Class, W206 C-Class facelifts, updated GLC W254, and all EQ-Series electric models at their latest software levels. Its fully offline architecture makes it suitable for workshops without reliable internet access during diagnostic sessions. Independent Mercedes-Benz workshops using SDConnect C5, C6 VCI, or VXDIAG on Windows 10 Technicians performing ECU programming, variant coding, SCN adaptation, and guided diagnostics on current Mercedes-Benz platforms Workshops that need the most current vehicle database including 2024–2026 MY models Users upgrading from an older Xentry OpenShell version who need updated coverage for new platforms Anyone setting up a new offline Mercedes-Benz diagnostic environment from scratch Key Diagnostic and Programming Functions Full system diagnosis: Read and clear manufacturer-specific DTCs across all Mercedes-Benz control units — ECM, TCM, ABS/ESP, SRS airbag, EIS/EZS, steering, body, comfort, HVAC, multimedia, instrument cluster, AIRMATIC, AIRbody control, electric drive unit (EQS/EQE), and all other ECUs in all supported vehicles Live data monitoring: Real-time parameters from all accessible ECUs — sensor values, actuator states, fuel system, hybrid/EV battery data, and all vehicle-specific parameters with graphical display capability Guided diagnostics (GDS): OEM step-by-step guided troubleshooting procedures — XENTRY walks through symptom identification, component testing, and measurement steps with expected values at each test point ECU programming and flashing: Update control unit software to the current Mercedes-Benz release — engine management, transmission, ABS, body modules, and all other programmable ECUs using XENTRY's SCN-validated flash files Variant coding: Read and write variant coding parameters for all accessible Mercedes-Benz ECUs — configure installed options, adapt replacement modules, enable market-specific features, and restore factory coding after component replacement SCN coding: Supply Control Number coding for replacement modules — EIS, ECM, transmission, and other SCN-coded units require valid SCN data written during or after replacement Parameterization: Write adaptation parameters to replacement components — sensors, actuators, comfort control modules, and other parameterizable units Service and maintenance functions: Service interval reset (ASSYST PLUS), brake fluid service counter, steering angle sensor calibration, EPB release and bed-in procedure, battery registration (BEM), TPMS initialization, and all Mercedes-specific service operations Component activation and output tests: Activate individual actuators, relays, pumps, valves, and motors directly from XENTRY to verify correct operation after repair DoIP diagnostics (2019+ vehicles): Full diagnostic access to DoIP-architecture vehicles via compatible C5/C6/VXDIAG interfaces — covering W223 S-Class, W206 C-Class, W214 E-Class, EQS, EQE, EQB, EQA, GLE W167, GLS X167, and all other DoIP-capable platforms Wiring diagram integration: Access to integrated wiring diagrams within the XENTRY diagnostic workflow — linked directly to fault codes and guided test procedures Vehicle Coverage — 06.2026 Mercedes-Benz passenger cars (all current series): A-Class: W168, W169, W176, W177 (including AMG A35/A45) B-Class: W245, W246, W247 C-Class: W202, W203, W204, W205, W206 (including AMG C43/C63) E-Class: W210, W211, W212, W213, W214 (including AMG E53/E63) S-Class: W220, W221, W222, W223 (including Maybach S-Class, AMG S63) CLA: C117, X117, C118 CLS: W218, W257 GLA: X156, H247 GLB: X247 GLC: X253, X254 GLE: W166, V167 GLS: X166, X167 G-Class: W461, W463, W463A SL: R231, R232 SLC/SLK: R172 AMG GT: C190, R190, X290 EQA, EQB, EQC, EQE (V295), EQS (V297), EQS SUV (X296), EQE SUV (X294) Mercedes-Benz vans: Sprinter W906 / VS30, Vito W638/W639/W447, V-Class W447, Citan W415/W420, T-Class W420, EQV W447, eSprinter Smart: ForTwo 450/451/453, ForFour 454/453, Smart #1, Smart #3 Maybach: S-Class Maybach W222/W223, GLS Maybach X167 FUSO: Canter FE/FG and related light commercial vehicles with XENTRY support 2021+ DoIP vehicles (ZenZefi certificate required): W223, W206, W214, EQS V297, EQE V295, X296, X294, and all vehicles with secure gateway (SGW) protection introduced from approximately 2021 MY ZenZefi Certificate — For 2021+ Vehicles Mercedes-Benz vehicles from approximately 2021 onward are equipped with a Secure Gateway Module (SGW) that restricts unauthorized diagnostic access. To perform full diagnostics, coding, and programming on these vehicles, a valid ZenZefi certificate must be installed in Xentry alongside the diagnostic software. Without ZenZefi: Xentry OpenShell can still read fault codes and access some systems on 2021+ vehicles, but writing operations, coding, programming, and access to secured systems are blocked With ZenZefi: Full diagnostic access — coding, programming, parameterization, and all secured system functions are unlocked ZenZefi certificate is sold separately — it is not included in the Xentry OpenShell installation file. Certificates are time-limited and must be renewed when they expire. Current certificate validity: CarSoftz provides ZenZefi certificates valid through 2026 — see the Xentry OpenShell service page for certificate options Xentry OpenShell vs Xentry Passthru — Choosing the Right Version Xentry OpenShell 06.2026 (this download): Designed for SDConnect C5, SDConnect C6 VCI, and VXDIAG VCX SE MB interfaces. Native support for full ECU programming, DoIP communication, and all advanced functions. Best performance for deep programming operations. Preferred by professional workshops with dedicated Mercedes-Benz hardware. Xentry Passthru 06.2026: Designed for J2534 PassThru devices — VAS 5054A, VAS 6154, Autel, Scanmatik, OpenPort. More flexible hardware compatibility — works with devices used for other brands. Slightly reduced capability for some intensive ECU flash operations but covers all standard diagnostic and coding functions. Which to choose: If you have SDConnect C5, C6 VCI, or VXDIAG VCX SE MB — use OpenShell (this page). If you have VAS 5054A, VAS 6154, Autel J2534, or Scanmatik — use Passthru. If you have SDConnect C4 — use the SDConnect C4 service which includes C4 activation. What You Need Before You Start Compatible interface — required: SDConnect C5 — supported natively SDConnect C6 VCI — supported natively, recommended for all current platforms VXDIAG VCX SE Mercedes-Benz — confirmed compatible C6 VCX — compatible SDConnect C4 / C4 DOIP: Requires SDConnect C4 activation add-on — not natively supported in 06.2026 Operating system: Windows 10 64-bit — required. Windows 7 is not supported from this version generation. Windows 11 64-bit is supported on most hardware configurations but Windows 10 is more stable for intensive ECU programming. RAM: 8 GB minimum — 16 GB strongly recommended for ECU programming sessions on current DoIP platforms Storage: Approximately 15 GB for installation — SSD mandatory, allow 20+ GB free space. HDD is not suitable — slow file access causes XENTRY timeouts during programming sessions Prerequisites: VCRedist x86 and x64, .NET Framework 4.8, Microsoft Message Queuing Server (MSMQ) feature enabled — all must be present before running the XDOS installer ZenZefi certificate: Required separately for 2021+ vehicles with Secure Gateway Module protection Battery support: Mandatory during any ECU programming or flashing session — connect a battery maintainer and verify stable voltage before starting Windows Pro or Enterprise: Windows Home edition is not supported System Requirements OS: Windows 10 64-bit (required) / Windows 11 64-bit (supported) — Pro or Enterprise only Processor: Intel Core i5 or better — i7 recommended for ECU programming on DoIP platforms Memory: 8 GB RAM minimum — 16 GB recommended Storage: 20+ GB free SSD space — HDD not suitable Interface: SDConnect C5 / C6 VCI / VXDIAG VCX SE MB — C4 requires separate activation Prerequisites: VCRedist x86/x64, .NET Framework 4.8, MSMQ enabled Battery support: Required for programming sessions Windows edition: Pro or Enterprise only Installation and Setup Notes Disable antivirus and Windows Defender completely before extraction and installation — XDOS components are frequently flagged as false positives. Add the Xentry installation directory to exclusions after setup. Install prerequisites first: Install VCRedist x86 and x64 → install .NET Framework 4.8 → enable MSMQ via Windows Features before running the main installer. Mount XDOS: Navigate to the CLO drive in the installer package → click XDOS → Mount → follow the installation wizard. Allow the full installation to complete — this may take several hours on first run. Run all components as administrator. Activation: After installation, use the provided keygen/activation files to generate and enter your activation key into ConfigAssist. Follow the included installation guide step by step. Reboot after XENTRY first launch — XENTRY requires a system restart after initial launch to complete configuration. Disable antivirus again after reboot if it was re-enabled automatically. Interface driver installation: Install your C5/C6/VXDIAG interface driver after Xentry is installed and activated — configure the interface in XENTRY settings. ZenZefi certificate installation: If working on 2021+ vehicles, install the ZenZefi certificate file into the Xentry certificate store before connecting to secured-gateway vehicles. Battery maintainer: Connect before any coding or programming session — verify stable vehicle voltage before initiating ECU flash operations. Clean Windows installation recommended: If upgrading from an older Xentry OpenShell version, a fresh Windows installation produces the most stable result. Installing over existing Xentry data causes version conflicts. Before You Download You work on Mercedes-Benz, Smart, Maybach, or FUSO vehicles using SDConnect C5, C6 VCI, or VXDIAG VCX SE MB Your system runs Windows 10 or Windows 11 64-bit Pro or Enterprise You have 8+ GB RAM and 20+ GB free SSD space You have VCRedist, .NET 4.8, and MSMQ available to install before setup For SDConnect C4/C4 DOIP — use the SDConnect C4 Activation service or Xentry OpenShell SDConnect C4 service For J2534 PassThru devices — use Xentry Passthru 06.2026 instead For 2021+ vehicles with secure gateway — obtain a ZenZefi certificate separately A battery maintainer is required for any ECU programming session Download Access