# Service bulletin 2043897/1

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10170085
- Published by NHTSA: 2020\-07\-28
- Manufacturer's number: 2043897/1
- Manufacturer's date: 2016\-04\-01
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's 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:

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10170085-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10170085-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2011 to 2016 BENTLEY MULSANNE

## Other bulletins for the same vehicles and component

- [2051187/13](/bulletins/11035901.md), 2026-08-05, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Poor Engine Running Complaints \(Misfires\) Petrol Engines Only. Customer statement / workshop findings: • Poor engine running • Reduced power • Engine warning lamp illuminated • Symptom related DTC’s evident within the applicable engine control unit\(s\)
- [2028808/10](/bulletins/11035379.md), 2026-07-31, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Service info: Engine oil – Specific oil type and oil consumption reference.
- [2075786/3](/bulletins/11035283.md), 2026-07-29, Service bulletin: STRUCTURE:BODY; SEAT BELTS; AIR BAGS; ELECTRICAL SYSTEM. Airbag, fire, accident \(safety\-related enquiry \- reporting forms\) There is a reporting obligation in the following cases: • Airbag/belt released/not released • General accident • Fire and scorching damage for all Bentley Vehicle models \- every model year.
- [2051562/17](/bulletins/11035242.md), 2026-07-28, Service bulletin: ELECTRICAL SYSTEM. 12 volt \- Battery condition checks \- Battery replacement requirements
- [2071131/6](/bulletins/11034759.md), 2026-07-07, Service bulletin: ELECTRICAL SYSTEM. Measured values \- Cycle recording instructions Condition: In some cases Measured value traces may be requested in XML format for analysis by Product Support Technical Background: The instructions within the Measure section of this TPI have been generated to guide operatives through the process for recording Measured values in cycles by using self diagnosis, the Instructions also detail how to locate corresponding files which are required for analysis
- [2051562/16](/bulletins/11032226.md), 2026-05-05, Service bulletin: ELECTRICAL SYSTEM. 12 volt \- Battery condition checks \- Battery replacement requirements. Customer statement / workshop findings: 12 volt battery flat or unserviceable
- [2051562/15](/bulletins/11029791.md), 2026-03-06, Service bulletin: ELECTRICAL SYSTEM. 12 volt \- Battery condition checks \- Battery replacement requirements. Customer statement / workshop findings: 12 volt battery flat or unserviceable
- [2051562/14](/bulletins/11029222.md), 2026-03-03, Service bulletin: ELECTRICAL SYSTEM. 12 volt \- Battery condition checks \- Battery replacement requirements. Condition: 12 volt battery flat or unserviceable
- [2061195/4](/bulletins/11025211.md), 2025-11-08, Service bulletin: ELECTRICAL SYSTEM. Telephone Functionality Complaint \- Minimum Standards Required For Analysis Of Concerns.
- [2051187/12](/bulletins/11025088.md), 2025-11-06, Service bulletin: ENGINE; ELECTRICAL SYSTEM. Poor Engine Running Complaints \(Misfires\) Petrol Engines Only. Condition: • Poor engine running • Reduced power • Engine warning lamp illuminated • Symptom related DTC’s evident within the applicable engine control unit\(s\)

JSON: [/v1/bulletins/10170085](/v1/bulletins/10170085)

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