Service bulletins for the 2015 Bentley Mulsanne
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.
138 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| 2053177/15 | 2021-06-04. Service bulletin. ELECTRICAL SYSTEM. All Vehicle Variants - Spurious DTC List. Customer statement / workshop findings: Customer will not be aware of any fault codes. Workshop may discover spurious fault codes whilst running a Diagnostic Trouble Code (DTC) log as part of other investigations on the vehicle. Technical background: The attached document contains all of the current known Spurious DTCs for all vehicle variants. Should a particular TPI be listed as Archived within the attached document the TPI can no longer be viewed within Elsa pro, in this case please refer to the instructions with the attached document regarding the DTC description and actions (if any) which should be conducted. |
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| 2053177/14 | 2021-05-05. Service bulletin. ELECTRICAL SYSTEM. All Vehicle Variants - Spurious DTC List. Customer statement / workshop findings: Customer will not be aware of any fault codes. Workshop may discover spurious fault codes whilst running a Diagnostic Trouble Code (DTC) log as part of other investigations on the vehicle. Technical background: The attached document contains all of the current known Spurious DTCs for all vehicle variants. Should a particular TPI be listed as Archived within the attached document the TPI can no longer be viewed within Elsa pro, in this case please refer to the instructions with the attached document regarding the DTC description and actions (if any) which should be conducted |
| 2062569/1 | 2021-04-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Mulsanne Premium Audio Amplifier-No sound with DTC's-UD140600 and/or UD140B00. Customer statement / workshop findings: - No sound from the Premium Amplifier - Sporadic high quiescent battery drain - Diagnostic Trouble Codes UD140600 High Static Current and UD140B00 Energy Management Active may be stored. Technical background: The Premium Amplifier does not shut 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. |
| 2053931/4 | 2021-02-03. Service bulletin. ELECTRICAL SYSTEM. Unable to stream Infotainment media to the rear seat entertainment system. Customer statement / workshop findings Unable to stream media to the rear seat entertainment system from the Infotainment system Technical background The ability to steam CD/DVD and TV to the rear seat entertainment system from the Infotainment system is no longer available from 19 Model Year onwards. |
| 2053931/3 | 2021-02-03. Service bulletin. ELECTRICAL SYSTEM. Unable to stream Infotainment media to the rear seat entertainment system. Customer statement / workshop findings: Unable to stream media to the rear seat entertainment system from the Infotainment system Technical background: The ability to steam CD/DVD and TV to the rear seat entertainment system from the Infotainment system is no longer available from 19 Model Year onwards. |
| 2061195/1 | 2020-12-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Telephone Functionality Complaint - Minimum Standards Required For Analysis Of Concerns. Customer statement / workshop findings: The feedback method within this TPI is required should a complaint of telephone functionality and/or quality be reported. Technical background: The minimum standards check list document within the Measure section is required to capture an accurate description of customer telephone issues. |
| 2051562/6 | 2020-12-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM. All Models - 12 Volt Battery condition checks. Technical background For all 12 volt battery issues relating to warranty or a parts warranty claim, a DISS query MUST be raised prior to battery replacement, refer to the instructions within the Measure section of this TPI. |
| 2053177/13 | 2020-11-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. All Vehicle Variants - Spurious DTC List. Customer statement / workshop findings Customer will not be aware of any fault codes. Workshop may discover spurious fault codes whilst running a Diagnostic Trouble Code (DTC) log as part of other investigations on the vehicle. Technical background The attached document contains all of the current known Spurious DTCs for all vehicle variants. Should a particular TPI be listed as Archived within the attached document the TPI can no longer be viewed within Elsa pro, in this case please refer to the instructions with the attached document regarding the DTC description and actions (if any) which should be conducted |
| 2058173/2 | 2020-11-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Electrical switch replacement guidelines. Customer statement/workshop findings: Electrical switch suspected as defective This TPI is not applicable to suspected faulty control units or any component related to the passive restraint system in particular the airbag system Technical background: Prior to replacing an electrical switch refer to the Measure section of this TPI |
| 2052785/5 | 2020-09-05. Service bulletin. SERVICE BRAKES, HYDRAULIC. Brake noise identification. Customer statement: Noise complaint from the braking system. Workshop findings: The noise can be reproduced and clearly assigned to the braking system. Technical Background: Brake noises can be attributed to many causes. Eight of the most common causes are: 1. Brake discs or pads are close to their wear limit. 2. New brake pads and/or discs have not been properly bedded in after installation. 3. Aftermarket pads or discs are installed. 4. There is debris such as small stones, grit, road salt or sand between the brake disc and pad. 5. Discs are covered in rust. Rust can form when the vehicle has been stationary for long periods of time (Figure 1). |
| 2053177/12 | 2020-08-06. Service bulletin. ELECTRICAL SYSTEM. All Vehicle Variants - Spurious DTC List Condition: Customer will not be aware of any fault codes. Workshop may discover spurious fault codes whilst running a Diagnostic Trouble Code (DTC) log as part of other investigations on the vehicle. Technical Background: The attached document contains all of the current known Spurious DTCs for all vehicle variants. Should a particular TPI be listed as Archived within the attached document the TPI can no longer be viewed within Elsa pro, in this case please refer to the instructions with the attached document regarding the DTC description and actions (if any) which should be conducted |
| 2053177/11 | 2020-08-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Customer statement / workshop findings Customer will not be aware of any fault codes. Workshop may discover spurious fault codes whilst running a Diagnostic Trouble Code (DTC) log as part of other investigations on the vehicle. All Vehicle Variants - Spurious DTC List Technical background The attached document contains all of the current known Spurious DTCs for all vehicle variants. Should a particular TPI be listed as Archived within the attached document the TPI can no longer be viewed within Elsa pro, in this case please refer to the instructions with the attached document regarding the DTC description and actions (if any) which should be conducted |
| 2028808/4 | 2020-08-05. Service bulletin. ENGINE AND ENGINE COOLING. Engine oil. Specific oil type and oil consumption reference. Customer statement / workshop findings: Engine oil level requires to:p up between services. Technical background The use of the correct oil for each engine type is critical for its continued performance, reliability and ultimately warranty. The workshop manual should always be the first point of reference, ensuring the correct lubricant is used for each specific model year and engine type Should oil be required the parts catalogue must be referred to ensuring the correct VIN is always used when ordering |
| 2056582/3 | 2020-08-05. Service bulletin. STRUCTURE. Interior trim - Creak and rattle - Noise identification. Customer statement / workshop findings: Noise complaint from the interior Workshop findings: The noise can be reproduced and clearly assigned to the interior Prior to starting the instructions within this TPI, the Retailer must check and confirm the vehicle is in standard factory condition and has not had any non-approved aftermarket modifications conducted Should any aftermarket modifications be found, the Retailer must make Product Support aware by raising a DISS query to report the details of the modification, you must then await feedback from Product Support before conducting any further work |
| 2053492/6 | 2020-08-05. Service bulletin. SUSPENSION:REAR:SPRINGS. Air spring fault finding. Customer statement / workshop findings: The front and/or rear suspension appears to have dropped. Technical background: The list of Bentley vehicles below are fitted with air springs as part of the suspension system. Should air leak from the air springs, this will cause the suspension to drop. However, the dropping of the suspension does not necessarily mean that the air spring is faulty. TheMeasure section of this TPI describes how and where to check for air leaks on the front and rear air springs, the air pump compressor, pipes, valve unit and air reservoirs. This includes potential air leak points on the air springs and also the locations of an air leak that can be repaired without the need to replace an air spring. These checks should be carried out in conjunction with the Elsapro procedure Air suspension: To check with the use of the special tool Air suspension leak tester VAS 751 001 shown in the image below as item ( 1). Refer to Elsapro, Repair Group 43, Air suspension To check. |
| 2038974/2 | 2020-07-28. Service bulletin. ENGINE AND ENGINE COOLING. Engine coolant thermostat - Engine start difficult Customer statement / workshop findings: Engine difficult to start Technical background: Engine coolant thermostat failure can result in implausible coolant temperature data being read by the engine control module in some cases this may lead to engine starting difficulties Measure: It is intended that in the event of engine starting difficulties being attributed to a coolant thermostat failure on a Mulsanne prior to VIN SCBBA6ZH9FC001420 then the new thermostat (part number 069121113) can be fitted. This new thermostat will not fit the original thermostat housing (part number 07V121117) therefore the new thermostat housing (part number 07V121117A) must also be fitted |
| 2037973/2 | 2020-07-28. Service bulletin. SUSPENSION. Mulsanne front anti roll bar - contact with lower wishbones Customer statement / workshop findings: Knocking noise from the front suspension on rough/uneven road surfaces Technical background: The ends of the original specification front anti roll bar in some cases can contact the front face of the lower right and lower left hand front wishbones. New specification front anti roll bar and anti-roll bar links have now been developed |
| 2038974/1 | 2020-07-28. Service bulletin. ENGINE AND ENGINE COOLING. Engine coolant thermostat - Engine start difficult Customer statement / workshop findings: Engine difficult to start Technical background: Engine coolant thermostat failure can result in implausible coolant temperature data being read by the engine control module in some cases this may lead to engine starting difficultys |
| 2038952/1 | 2020-07-28. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN; ELECTRICAL SYSTEM. Mulsanne engine and transmission control module software update (SC15/01) Technical background: Customer may experience powertrain clunk feeling when driving at low load. Investigations found that improvements in the modelled auxiliary torque drag would remove the clunk sensation, Remedy The improved modelled auxiliary torque drag calibration for Mulsanne must be applied by performing this campaign process. |
| 2043897/1 | 2020-07-28. Service bulletin. ELECTRICAL SYSTEM. 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: |
| 2053177/10 | 2020-07-07. Service bulletin. ELECTRICAL SYSTEM. All Vehicle Variants - Spurious DTC List Condition: Customer will not be aware of any fault codes. Workshop may discover spurious fault codes whilst running a Diagnostic Trouble Code (DTC) log as part of other investigations on the vehicle. Technical Background: The attached document contains all of the current known Spurious DTCs for all vehicle variants. Should a particular TPI be listed as Archived within the attached document the TPI can no longer be viewed within Elsa pro, in this case please refer to the instructions with the attached document regarding the DTC description and actions (if any) which should be conducted Service: During routine diagnostic interrogation of vehicle systems use the attached document to determine the course of action to be taken. |
| 2058173/1 | 2020-02-08. Service bulletin. ELECTRICAL SYSTEM. Electrical switch replacement guidelines Customer statement / workshop findings: Electrical switch suspected as defective This TPI is not applicable to suspected faulty control units or any component related to the passive restraint system in particular the airbag system Technical background: Prior to replacing an electrical switch refer to the Measure section of this TPI |
| 2038035/1 | 2020-01-17. Service bulletin. ELECTRICAL SYSTEM. Continental Series, Flying Spur and Mulsanne - Main harness identification Customer statement / workshop findings: Should an issue be diagnosed or reported regarding any part of the vehicles main harness or engine harness resulting in a requirement to raise a DISS ticket, please follow all instructions within this TPI to ensure that your Bentley Motors Technical Service Centre (TSC) receives all required and relevant information. Technical background: In order for the Bentley Motors Technical Service Centre (TSC) to resolve any issues relating to the vehicles main harness or engine harness please follow the instructions within this TPI. Refer to Section 1 for the main vehicle harness identification label location Refer to Section 2 for the engine harness identification label location |
| 2024811/2 | 2020-01-17. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Gearbox code P1703 not clearing in Guided Fault finding Condition: There is no customer complaint the fault code is logged as a result of connecting the diagnostic tester When the fault memory is read using Guided Fault finding the following codes may be logged: P170300 Limp home, control unit reset (located in diagnostic address 02 Transmission control module) U1111 Function limitation due to missing message (located in diagnostic address 81 Gear Shift Control Module (GSM) Technical Background: Due to a communication error between the tester and the transmission control module the above faults may be logged even though there is no problem with the vehicles gearbox system. If these faults are logged and there is no gearbox problem reported, clear these codes using vehicle Self Diagnosis. |
| 2028808/3 | 2020-01-17. Service bulletin. ENGINE AND ENGINE COOLING. Service info: Engine oil Specific oil type and oil consumption dealer reference Customer statement / workshop findings: Engine oil level requires top up between services Technical background: The introduction of the Bentley Continental GT V8 brings a new engine to the Bentley family. This all new 4.0 litre V8 twin turbo joins the 6.0 litre W12 in the Continental range with the 6.75 litre V8 reserved for the Mulsanne. Each of these three engines had individual design criteria producing unique driving characteristics as a result each have individual lubrication requirements and oil consumption statistics. With the 4.0 litre V8 comes a new oil to Bentley - this new engine lubricant must only be used in the 4.0 litre V8. The use of the correct oil for each engine is critical to its continued performance, reliability and ultimately warranty. Therefor the workshop manual should always be the first point of reference ensuring the correct lubricant is used for each specific model year and engine type |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.