Mercedes CLA Software Malfunction Experiences

Sounds like a classic case of corrupted flash memory. The navigation system failing along with other electrical gremlins suggests the issue isn't isolated to a single module. I would start by interrogating all modules on the CAN bus for fault codes. Pay close attention to the gateway module as it's the central communication hub. Did the problem appear suddenly, or was there a recent event like a software install or battery replacement that might have triggered it? Also, what specific fault codes are you seeing?

The issue appeared without any immediately preceding events such as a software install or battery replacement. I have not extracted the raw fault codes yet, but intend to do so before taking it to a workshop. Are there specific modules, beyond the gateway, that are known to be sensitive to programming errors in this model and might be worth prioritizing during diagnostics?

Given the symptoms, prioritize checking the central control unit (ECU), transmission control unit (TCU), and instrument cluster. These modules often interact, and a software malfunction in one can cascade to others. While a complete software reset might resolve the issue, ensure the workshop investigates the root cause to prevent recurrence. In rare instances, underlying hardware problems can mimic software glitches. If you see communication errors between modules, that's a red flag. Honestly, with the described issues, a workshop visit is advisable; they possess the necessary tools and software for a complete system recalibration.

Thank you for the detailed insights. I will proceed with extracting the fault codes and then schedule a workshop appointment for a comprehensive diagnostic and recalibration. I appreciate the advice on prioritizing specific modules during the process. The recalibration at the workshop resolved the software malfunction. All systems are now functioning as expected.