This is to notify you of the Service Campaign Launch to update the transmission control unit software in 33,704 Model Year (“MY”) 2019-2020 CLA-Class, A-Class, and GLB-Class (118, 177, and 247 platform) vehicles. The vehicles will be visible and flagged in VMI as “OPEN” on June 3, 2022.
Issue
Mercedes-Benz
AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain MY 2019-2020 CLA-Class, A-Class, and GLB-Class (118, 177, and 247 platform) vehicles, the transmission control unit software may not correspond to current product specifications. It is possible that the vehicle may switch to coasting mode during deceleration or rolling when engaged in drive mode “E”. In drive mode “E”, coasting operation is displayed in the instrument cluster as “D” and may be green instead of white. When exiting coasting mode, the “N” drive mode instead of “D” may be activated. The current drive mode will be displayed in the instrument cluster.
What We’re Doing
MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the transmission control unit software.
Parts
The remedy is available and can be performed as necessary.
Update transmission control unit software
- Ensure use of XENTRY Diagnosis version BD/DVD (09/2020) or higher.
- Before starting the work procedure, install all the add-ons that are updated daily in XENTRY Diagnosis.
- Make sure to follow the operation steps exactly as described in XENTRY Diagnosis.
- Use a battery charger to ensure sufficient power supply of the vehicle on-board electrical system battery (greater than 12.5 V).
- If XENTRY Diagnosis is already connected to the vehicle, start with operation step 2.
If two or more software updates or SCN codings are performed during one workshop visit, operation items 02-4762 and 02-5058 may be invoiced once for each workshop order.
Work Procedure
- Connect XENTRY Diagnosis.
- Update Y3/14 transmission control for 7 speed dual-clutch transmission (DKG).
To do this select “Quick test view – Y3/14 transmission control for 7 speed dual-clutch transmission (DKG) – Adaptations – Control unit update – Updating of control unit software”. Then follow the user guidance in XENTRY Diagnosis.
- Disconnect XENTRY Diagnosis.
Update Transmission Control Unit Software 5498919
Various Models
Model Year 2019-2020
Mercedes-Benz Reprogramming
All information in regard to Mercedes-Benz J2534 compliant software is available free of charge and found under the MB Workshop Resources tab on the home page of www.startekinfo.com
J2534 complaint software for Mercedes-Benz vehicles is available for purchase from Mercedes-Benz USA.
In order to use the J2534 complaint software for Mercedes-Benz vehicles, the purchaser must furnish their own:
- Windows based PC or laptop*
- J2534 compliant interface box*1*
*Must be purchased from a third party company and are not available from Mercedes-Benz USA LLC.
*1* suggested listing of J2534 interface boxes is located within the J2534 Pass-Thru User’s Manual which is posted for view without cost under the MB Workshop Resources tab on the home page of www.startekinfo.com
Vehicle Coverage
J2534 complaint software for Mercedes-Benz vehicles has coverage for all required functions associated to reprogramming, initialization, and fault clearing of emission control modules (engine and transmission) fitted to vehicles 2004 Model Year and newer. Additionally all access and functionality required in regard the configuration via SCN Coding and/or CVN Coding is covered.
J2534 complaint software for Mercedes-Benz vehicles is delivered via DVD media which is delivered monthly for the license term of one year upon purchase.
- All control unit software (reprogramming calibrations) is contained within J2534 DVD media.
Terms and conditions
J2534 complaint software for Mercedes-Benz vehicles is purchased in 1-year license increments. During that license term the user will receive an initial software package, license key, SCN/CVN Coding information/access as well as monthly updates via DVD media.
- Additional updates of software after the 1st year can be purchased at additional cost, however are not required for the system to continue functioning.
For pricing and additional information via the internet, please refer to the information at the beginning of this section.
- Advanced VCI Box, Industry-leading J2534 Pass-Thru Technology: This J2534 Pass-Thru Programmer is designed espically for technicians, independent shop owners, and DIY enthusiasts, enables fast, reliable computer-based programming. It supports all J2534 protocols—including the latest DoIP and CAN FD—ensuring full compatibility with both legacy and next-generation vehicles.
- High-Speed OEM-Level Diagnostics & Programming: Unlock true OEM functionality with comprehensive system diagnostics, guided troubleshooting, coding, adaptations, resets, and programming—all designed to slash repair time. This all-in-one tool eliminates the need for multiple OEM devices, boosting efficiency and cutting costs. Equipped with High-Speed USB, it delivers 10x more data per second than competing solutions
- Coverage for 17 Car Brands & Ultra Reliability: Works seamlessly for Chrysler, for Ford(Forscan), for GM, for Nissan, for Toyota, for Honda, for Subaru(SSM4), for Land Rover/Jaguar, for Volvo, for Wuling, for Volkswagen, for Mercedes-Benz, and for BMW. Backed by over 10000 real vehicle tests and benefit from a wealth of practical experience, this OEM reprogramming tool guarantees stable and exceptional performance
- User-Friendly RLink Platform & Expert Support: TOPDON’s proprietary driver management platform offers a clean interface and lifetime free updates. Access a rich library of real-world case studies to stay ahead of the curve. Backed by a support team with 10+ years of J2534 and automotive repair experience, we provide one-on-one assistance to resolve any technical issue.
- 6.6 ft USB-C Cable & Portable Storage Case: The RLink J2534 diagnostic tool features a 6.6ft USB 2.0 Cable and a 1.2 ft OBDII Extension Cable, allows to connection your computer easily outside the vehicle. The included handled carry case offers easy portability, storage, and hanging options—keeping your gear clean and ready to go, anywhere.
- J2534 Pass-Thru Programmer: TOPDON RLink J2534 is an advanced diagnostic and reprogramming tool that support all J2534 protocols, as well as D-PDU, CAN-FD and DoIP, ensuring compatibility with a wide range of modern vehicles. It offers extensive versatility with support for over 18 major automotive brands, including Chrysler, Ford, GM, Nissan, Toyota, Honda, Subaru, Land Rover/Jaguar, Volvo, Wuling, Volkswagen/Audi, Mercedes-Benz, and BMW. NOTE: Not compatible with Ford IDS diagnostic software
- All-in-One OEM Diagnostics: This J2534 ECU programming tool elevates your automotive repair capabilities to new heights by delivering complete OEM diagnosis. Boasting comprehensive full-system diagnostics, intuitive repair guides, advanced ECU programming and coding, common reset services, a vast library of repair information and more, this all-in-one solution empowers technicians to effortlessly tackle complex vehicle issues with ease. *Not compatible with 24V vehicles
- Proven Performance You Can Trust: Backed by over 10000 real vehicle tests and benefit from a wealth of practical experience, this OEM reprogramming tool guarantees stable and exceptional performance. Supported by TOPDON's dedicated technical experts with in-depth knowledge of both auto repair and J2534 Pass-Thru programming, the RLink J2534 provides prompt and professional assistance, ensuring a smooth setup and reliable compatibility
- Integrated Excellence, Always Up-to-Date: Featuring the exclusive RLink Platform to provide a streamlined experience with one-click driver installation and management, ensuring flawless integration with your OE software, maintaining the original performance quality. The built-in operation guide makes mastering OE software quick and easy, so you can get started right away. Plus, with lifetime free updates, your diagnostics will stay current with the latest drivers and innovations
- Efficiency Meets Versatility: Engineered to support three CAN channels simultaneously - CAN FD and CAN-CC included, giving you the edge in fast troubleshooting. To perfectly synchronized with the OE software, please diagnose with active subscriptions and make sure your computer system is running a compatible 64-bit Windows version (7, 8, 10 or later) to fully leverage the power of RLink J2534. *We don't provide extra OE software
- Dual WiFi & 10.1" Touchscreen: Provides a stable, high-speed wireless link 3x faster than bluetooth, and a responsive, professional interface. Topdon ONE obd2 scanner diagnostic tool ensures smooth, non-lagging diagnostic scan, boosting mechanic efficiency
- J2534 Pass-Thru Support: The included ONE VCI supports the J2534 standard, allowing it to function as a pass-thru device when paired with OEM diagnostic software.Through TOPDON’s RLink platform, technicians can perform dealer-level coding, expanding in-house capabilities without investing in multiple factory automotive scan tools
- OE Topology Mapping: Visualize the vehicle’s ECU network exactly as it’s built.Zoom, pan, and highlight specific modules to pinpoint component issues with precision.Topology mapping displays real-time communication between modules
- 50 Plus Service Functions: Covers high-demand services like ADAS calibration, DPF regen, TPMS reset, ABS bleed, and throttle adaptation.Expands your service menu, allows you to charge premium rates, and turns away zero jobs due to lack of tooling. Vehicle-specific functionality may vary
- Advaned ECU Coding: 10 of the most serviced brands in North America, including full ECU coding and flash hidden support for BMW, VW, Au-di, Benz, Porsche, Toyota, Ni ssan and more. Enables module replacement, feature customization, and personal settings with automatic backup or restore.Lets your shop safely offer high-margin customization services, attracting more customers and boosting profit
- [J2534 Pass-Thru Programmer] - TOPDON RLink J2534 is engineered for professional technicians, delivering OEM diagnostic and reprogramming capabilities. It supports all J2534 protocols, CAN-FD, DoIP, D-PDU. Compatible with 17 vehicle brands—such as Chrysler, Ford, GM, KIA, Hyundai, Nissan, Toyota, Honda, Subaru, Mitsubishi, MAZDA, Land Rover/Jaguar, Volvo, Volkswagen/Audi, Mercedes-Benz, and BMW. RLink J2534 can help reduce the cost of purchasing equipment from different brands.
- [All-in-One OEM Reprogramming and Diagnostics] - When seamlessly integrated with OEM diagnostic software, this dongle enables you to perform a wide range of functions, including ECU programming and coding, DTC reading and clearing, active tests, component matching, adaptations, rewriting, guided troubleshooting, and more. This all-in-one tool eliminates the need for multiple OEM devices, significantly boosting work efficiency.
- [Tested, Trusted, and Proven for Accuracy] - TOPDON RLink J2534 is renowned for its reliability, having successfully completed over 10,000 real-vehicle tests. The wealth of data and hands-on experience behind it ensures consistent performance and accurate results. You can trust this tool to deliver optimal performance.
- [One-Click Installation, Continuous Updates] - The exclusive TOPDON RLink platform streamlines installation with a one-click driver setup, allowing you to quickly access OEM software for diagnostic and reprogramming tasks. With lifetime free updates, your RLink J2534 stays current without any additional cost, ensuring reliable performance for the long term. *We don't provide extra OE software.
- [Works with Windows Compatibility and OEM Software Subscription] - The RLink J2534 supports three CAN channels - including CAN FD and CAN-CC, providing advantages in the process of rapid troubleshooting. Compatible with Windows 7, 8 and 10 (64-bit) and higher versions of the system. For full functionality, an active OEM software subscription is required for each supported vehicle brand. Please note that the dongle does not include OEM software, which must be purchased separately to access brand-specific diagnostic and reprogramming features.
- ALL OF THE J2534 PROTOCOLS - This single unit has all of the protocols you need for your OEM J2534 reprogramming and diagnostics including the latest in DoIP and CanFD
- J2534 TECHNICAL SUPPORT - FREE for the life of the tool. Staffed by technicians who understand vehicle repair and J2534 Pass‑thru
- TOOLBOX WITH OEM APPLICATION DESCRIPTIONS - educational video tutorials and real-time news – Giving you the confidence and up-to-date knowledge to get the job done
- J2534 v05.00 API - The newest version of J2534 to give you the latest in pass-thru technology
- FUTURE PROOF WITH 4 CAN CHANNELS - Going beyond the 3 required by select Chrysler/FCA models, CarDAQ-Plus 3 also provides a 4th to meet the needs of future OEM applications
- Upgraded Connector Design: The connector has been changed to prevent previous issues. If you bought the earlier model and encountered problems, message us for a hassle-free replacement—we've got you covered
- Made for GM, Ford & Chrysler Dealer-Level Access - Gain OEM-level diagnostics, ECU programming, coding, and bidirectional control with official OE software. Perform system resets and module customization across The Big 3 from one compact OBD2 to USB GM, Chrysler, and Forscan tool. *Does not support ECU diagnostics and programming for GM vehicles using DoIP protocol. Please verify compatibility before purchase
- Supports 8+ OE Software Platforms with One Tool - Work seamlessly across Forscan, FJDS, FDRS, Tech2Win, SPS 2, Techline, GDS2, and Witech 2.0. This J2534 pass-thru device lets you switch between platforms in seconds, streamlining workflow and reducing hardware costs. *No OE Software Provided, OE diagnostic software require separate subscriptions
- Reliable Forscan Adapter for Ford Diagnostics - The RLink X3 is a pro-grade Forscan OBD2 adapter, providing a stable connection for Ford, Lincoln, Mazda, and other Forscan software vehicles. Ideal for programming, module coding, and advanced vehicle configuration
- Broad Coverage for 2006 to 2025 GM, Ford & Chrysler Vehicles - Equipped with J2534 and CAN-FD protocols, this OBD2 connector supports model-year 2006 and newer vehicles. Handle the latest CAN-FD control systems with full compatibility across GM, Ford, and Chrysler platforms
Last update on 2026-06-08 / Affiliate links / Images from Amazon Product Advertising API
SEOCONTENT-START
Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Com pany One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC IMPORTANT SERVICE CAMPAIGN LAUNCH Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES. Sincerely, Gregory Gunther Department Manager, Vehicle Compliance & Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services RE: Service Campaign Launch Notification Update Transmission Control Unit Software MY19-20 CLA-Class, A-Class, and GLB-Class (118, 177, and 247 platform) DATE: June 3, 2022 Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Com pany One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 News Channel Update | Vehicle Compliance & Analysis PUBLIC Service Campaign Launch Notification June 3, 2022 Campaign No. : Campaign Desc. : Update Transmission Control Unit Software 2022050022 20P5498919 This is to notify you of the Service Campaign Launch to update the transmission control unit software in 33,704 Model Year (“MY”) 2019-2020 CLA-Class, A-Class, and GLB-Class (118, 177, and 247 platform) vehicles. The vehicles will be visible and flagged in VMI as “OPEN” on June 3, 2022. Background Issue Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain MY 2019-2020 CLA-Class, A-Class, and GLB-Class (118, 177, and 247 platform) vehicles, the transmission control unit software may not correspond to current product specifications. It is possible that the vehicle may switch to coasting mode during deceleration or rolling when engaged in drive mode “E”. In drive mode “E”, coasting operation is displayed in the instrument cluster as “D” and may be green instead of white. When exiting coasting mode, the “N” drive mode instead of “D” may be activated. The current drive mode will be displayed in the instrument cluster. What We’re Doing MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update the transmission control unit software. Parts The remedy is available and can be performed as necessary. Vehicles Affected Vehicle Model Year(s) 2019-2020 Vehicle Model CLA-Class, A-Class, and GLB-Class Vehicle Populations Total Recall Population 33,704 Next Steps/Notes AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP. While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES. Campaign No. 2022050022, June 2022 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Models CLA-Class, A-Class, and GLB-Class (118, 177, and 247 platform) Model Year 2019-2020 Update Transmission Control Unit Software Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain MY 2019-2020 CLA-Class, A-Class, and GLB-Class (118, 177, and 247 platform) vehicles, the transmission control unit software may not correspond to current product specifications. It is possible that the vehicle may switch to coasting mode during deceleration or rolling when engaged in drive mode “E”. In drive mode “E”, coasting operation is displayed in the instrument cluster as “D” and may be green instead of white. When exiting coasting mode, the “N” drive mode instead of “D” may be activated. The current drive mode will be displayed in the instrument cluster. An authorized Mercedes-Benz dealer will update the transmission control unit software. Prior to performing this Campaign: VMI must always be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly. Please review the entire Campaign bulletin and follow the repair procedure exactly as described. Approximately 33,704 vehicles are affected. Order No. P-SC-2022050022 This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Record 2 P-SC-2022050022 Update transmission control unit software Ensure use of XENTRY Diagnosis version BD/DVD (09/2020) or higher. Before starting the work procedure, install all the add-ons that are updated daily in XENTRY Diagnosis. Make sure to follow the operation steps exactly as described in XENTRY Diagnosis. Use a battery charger to ensure sufficient power supply of the vehicle on-board electrical system battery (greater than 12.5 V). If XENTRY Diagnosis is already connected to the vehicle, start with operation step 2. If two or more software updates or SCN codings are performed during one workshop visit, operation items 02-4762 and 02-5058 may be invoiced once for each workshop order. Work Procedure 1. Connect XENTRY Diagnosis. 2. Update Y3/14 transmission control for 7 speed dual-clutch transmission (DKG). To do this select “Quick test view – Y3/14 transmission control for 7 speed dual-clutch transmission (DKG) – Adaptations – Control unit update – Updating of control unit software”. Then follow the user guidance in XENTRY Diagnosis. 3. Disconnect XENTRY Diagnosis. Note: The following allowable labor operation should be used when submitting a warranty claim for this repair: Warranty Information Damage Code Operation Number Description Labor Time (hrs.) 54 989 19 02-9334 Update Y3/14n4 transmission control (DKG) control unit software (with XENTRY Diagnosis connected) 0.1h 02-4762* Connect/disconnect diagnostic system (XENTRY Diagnosis) 0.1h 02-5058* Connect/disconnect starter battery charger (with XENTRY Diagnosis connected) 0.1h * Operation item may be invoiced only once for each workshop order. Note: Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document.
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