Complaint
Volume and bass level too low
Cause
Current sound amp (N40/3) software release.
Important:
â?¢ On vehicles with standard sound, the rear subwoofer (H21/35) emits the engine sound only (if equipped with
M139 engine)
â?¢ On vehicles with code 853 (Advanced Sound) or 810 (Premium Sound), the rear subwoofer (H21/35) emits not
only the engine sound, but also entertainment sound
Remedy
Perform a software update of the sound amp (N40/3) to the latest available version.
Note: Do not replace any parts as this will not remedy the complaint.
