Mulsanne Premium Amplifier Customer statement / workshop findings No sound from the Premium Amplifier,...
Bentley technical service bulletin 2043897/1 for 2011-2016 Bentley Mulsanne.
- Bulletin number
- 2043897/1
- Component
- Electrical system
- Summary
- Mulsanne Premium Amplifier Customer statement / workshop findings No sound from the Premium Amplifier, sporadic high quiescent drain, Diagnostic Trouble Codes UD140600 high static current and UD140B00 Energy Management Active may be stored. Technical background The Premium Amplifier is not shutting down when the vehicle ignition is deactivated, this is due to a missing or ignored message between the Amplifier Power Board and the Amplifier Main Controller. Software Version 0120 has been introduced to correct this issue. Production change Vehicles manufactured from VIN SCBBE6ZH4GC002383 have the latest software installed. Measure If the vehicle isnot already listed as repaired within the repair history ( Elsa-Pro) check the fuel filler door for the blue completion mark figure 28. If neither is evident, continue with the update in accordance with the following instructions. Ensure a suitable battery charger (VAS 5903 or a charger of the same specification) is correctly connected to the vehicle electrical system for the duration of the procedure. Refer to the workshop manual Rep. GR27 Charge Battery Note:
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