The
Mercedes-Benz technical service bulletin LI54.21-P-079369 for 2019-2024 Mercedes-Benz AMG GT63, 2019-2023 Mercedes-Benz AMG Gt63s and 2023 Mercedes-Benz AMG GT 63 S E Coupe and others.
- Bulletin number
- LI54.21-P-079369
- Component
- Electrical system
- Summary
- Complaint The customer complains that there is a humming/droning/throbbing/ear pressure in the interior at low engine speeds (up to 2400 rpm). Cause In the current software state, the EOC system (Active Noise Cancellation), which reduces the humming in the interior, fails permanently, without a DTC (Diagnostic Trouble Code) being stored. Remedy Remedy software available in Xentry: • Vehicles with code 810: SW update ASX (N156/1) and SND (N40/3) control unit • Vehicles with code 811: SW update ASX (N156/1) and SND (N40/3) control unit After the ASX & SND software update, initial start up of the control units must be performed.
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