Service bulletins for the 2014 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.
156 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| 2056407/3 | 2021-10-04. Service bulletin. STEERING; SUSPENSION. Running gear - Noise identification. Customer statement: Noise complaint from the suspension and/or steering Workshop findings: The noise can be reproduced and clearly assigned to the suspension system from either of the axles And/or The noise can be reproduced and clearly assigned to the steering system |
|---|---|
| 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. |
| 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. |
| 2025177/3 | 2020-07-28. Service bulletin. SUSPENSION. Mulsanne damper suspension noise Customer statement / workshop findings: Occasional pneumatic whooping noise from the front suspension and infrequently from the rear suspension. The noise occurs when driving over speed humps, driving on uneven surfaces at high speeds or mounting kerbs Technical background: Occasional whooping noise emanating from the front or rear suspension. The noise can be apparent when driving over speed humps above 15 MPH, driving on uneven surfaces at high speeds or when mounting or dropping down from kerbs. The whooping noise is very difficult to replicate, and is evident only after a long drive cycle No further action is required. Measure: This is an understood phenomena under specific dynamic conditions and is therefore categorised as normal vehicle operation and as such does not require further investigation |
| 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. |
| 2035688/1 | 2020-03-03. Service bulletin. SUSPENSION. Mulsanne front suspension 'chattering' noise Customer statement / workshop findings: There is a chattering noise which is audible from the front end/engine compartment when braking or when driving on rough road surfaces. Technical background: The right and left hand front upper wishbone levers have been identified as the source of the chattering noise which is audible within the cabin particularly when driving on rough road surfaces or when braking. New specification brackets are now available, the latest specification brackets are wider which increases the distance between the upper wishbone and the bracket, the increased distance eliminates contact between the two components. The right and left hand side front upper wishbones brackets and upper wishbones must be replaced along with all applicable fixings. |
| 2036321/1 | 2020-03-03. Service bulletin. ELECTRICAL SYSTEM; SEATS. Mulsanne - iPad holder - iPad Air Compatibility Customer statement / workshop findings The car was specified with iPad holder. When delivered the only commercially available iPad, iPad Air, does not fit Technical background Apple changed iPad specification between car order entry and customer receiving car. The only Apple tablet available at car PDI, iPad Air, does not fit the iPad holder in the car Measure This conversion can be offered to the original owners of the vehicles detailed in the Vehicle data section of this document |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.