Experiencing speed limitation issues with your 2019 Mercedes-Benz Sprinter W907 after using DTS Monaco for coding can be frustrating. Many users have encountered similar problems when attempting to adjust vehicle parameters, particularly speed limits, using aftermarket diagnostic tools. This article explores a common scenario where a user coded their Sprinter, encountered an unexpected 81 km/h speed limit even after reverting changes, and highlights how a tool like Xentry 9 2019 might be crucial in diagnosing and resolving such issues.
The user initially aimed to modify the speed limit in their Sprinter W907 using DTS Monaco, targeting the CPC_NG and CRD 3.2 modules. While DTS Monaco is a powerful tool, incorrect parameter adjustments or unforeseen module interactions can lead to complications. In this case, after setting a maximum speed and subsequently reverting to the original settings (161 km/h and AMG7 240 km/h), the van remained capped at 81 km/h. This persisted despite attempts to restore the original configurations.
Adding to the complexity, an error code U010087, indicating a “communication error” with a “missing message,” emerged post-coding. This DTC, absent before any modifications, suggests potential disruptions in the vehicle’s communication network, possibly stemming from the coding process. The fact that this issue didn’t arise in previous experiences with 2021 vans (where only CPC_NG was adjusted) points towards the CRD 3.2 module or the interaction between CPC_NG and CRD 3.2 in the 2019 W907 as a potential source of the problem. The presence of cruise control and MBUX in the 2019 model, unlike the previous vans, could also be a contributing factor, indicating more intricate electronic systems.
Copying coding from a similar van proved ineffective, suggesting the issue might not be solely parameter-based but potentially related to a corrupted module configuration or a deeper system fault. The persistent 81 km/h limit after reverting all changes strongly indicates that the initial DTS Monaco operations might have left residual effects or triggered a fault state within the Sprinter’s control units.
To effectively diagnose and rectify this speed limitation issue, leveraging a comprehensive diagnostic system like Xentry 9 2019 is highly recommended. Xentry, the official Mercedes-Benz diagnostic tool, offers in-depth system analysis, fault code reading, module communication checks, and guided diagnostic procedures specifically tailored for Mercedes-Benz vehicles, including the Sprinter W907.
Using Xentry 9 2019, a technician can:
- Perform a thorough fault code scan: Beyond the U010087 error, Xentry can reveal other related or hidden fault codes that DTS Monaco might have missed or not fully interpreted.
- Check actual values and module adaptations: Xentry allows examination of live data and adaptation settings within the CPC_NG and CRD 3.2 modules to verify if the reverted settings were correctly applied and if any discrepancies remain.
- Conduct module communication tests: Xentry can pinpoint communication issues within the vehicle’s CAN network, helping to understand if the U010087 code is indicative of a broader communication problem affecting the speed limitation.
- Perform SCN coding and flash programming: If module corruption or incorrect coding is suspected, Xentry can be used to perform SCN (Software Calibration Number) coding to restore factory settings or even re-flash modules with the latest software versions, ensuring proper operation and resolving potential software glitches introduced by DTS Monaco modifications.
In conclusion, while DTS Monaco can be used for vehicle coding, situations like this highlight the importance of having access to a robust diagnostic tool like Xentry 9 2019 for in-depth troubleshooting and system recovery, especially after encountering unexpected issues. For resolving persistent speed limitation and communication errors in a 2019 Mercedes-Benz Sprinter W907 post-DTS Monaco coding, a comprehensive diagnostic approach with Xentry 9 2019 is crucial to ensure accurate diagnosis and effective repair.
