Mercedes-Benz E350 intermittent sound and navigation system failure on Mercedes-Benz E350

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Mercedes-Benz E350 owners report experiencing intermittent sound and navigation system failures, which may be attributed to several factors. These issues can include a temporary loss of audio possibly caused by a faulty tele aid communication module. Additionally, a blank screen on the navigation system might result from software glitches or loose connections. In situations where the unit seems operational but no sound is present, some owners find that resetting the command system can sometimes rectify the problem. Troubleshooting may also involve addressing software issues, hardware malfunctions, or loose fiber-optic loop connections. Furthermore, if the navigation system freezes, restarting the vehicle and checking for software updates could help resolve the issue.

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