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Service bulletins for the 2017 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.

164 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
2075786/22025-10-30. Service bulletin. ENGINE; ELECTRICAL SYSTEM; STRUCTURE:BODY; SEAT BELTS; AIR BAGS. 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.
2071131/52025-10-21. 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.
2069806/72025-10-07. Service bulletin. VISIBILITY/WIPER; ELECTRICAL SYSTEM; STRUCTURE:BODY. HVAC refrigerant leakage suspected or reports of a damp/musty smell within the cabin - Diagnosis guidelines
2050542/82025-07-08. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING; VISIBILITY/WIPER. Front Exterior Lighting Steamed Up/Leaks | 12-24MY.
2069806/62025-07-08. Service bulletin. VISIBILITY/WIPER; ELECTRICAL SYSTEM. HVAC refrigerant leakage suspected or reports of a damp/musty smell within the cabin - Diagnosis guidelines.
2075786/12025-06-06. Service bulletin. UNKNOWN OR OTHER; STRUCTURE:BODY; ELECTRICAL SYSTEM; AIR BAGS; SEAT BELTS. 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.
2077529/22025-06-05. Service campaign. SEATS; ELECTRICAL SYSTEM. Seat Fans Inoperative | All Models | 17-25MY. Condition: Customer may report that the seat ventilation system is not functioning with no airflow from the seat ventilation ducts.
2077529/12025-06-05. Service bulletin. ELECTRICAL SYSTEM; SEATS. Seat Fans Inoperative | All Models | 17-25MY
2077519/12025-06-05. Service bulletin. STRUCTURE:BODY. Exterior Gap and Profile Information | 17 - 25MY. Condition: Customer and/or retailer may raise an issue with panel gaps/alignment or flushness
2051187/112025-05-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 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)
2064337/32025-04-02. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. Usage of E10 fuel. Condition: In the event a customer asks if E10 fuel can be used, the operative must refer to the Technical background section of this TPI Technical Background: Details on the introduction of E10 fuel which contains 10% ethanol and its usage on Bentley products • All vehicles produced post 1990 Model year can be run using E10 fuel However • All vehicles produced before 1990 Model year MUST NOT use E10 fuel
2028808/82025-04-02. Service bulletin. ENGINE. Service info: Engine oil - Specific oil type and oil consumption reference. Condition: Engine oil level requires top 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
2071131/32025-03-28. 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
2028794/82025-03-27. Service bulletin. ENGINE. Engine coolant mixture - Restrictions on use of desalinated water. Technical Background: An important factor of influencing the cooling system efficiency is the water used in the mixture Due to the different ingredients and characteristics existing in each country or even region, Bentley has decided to define the quality of water for cooling systems Demineralised water according to standard VDE 0510 meets all requirements and can be purchased worldwide Therefore undiluted coolant should be mixed in the correct ratio using demineralised water as detailed in Elsa Pro coolant specification, this will detail the ratio and type of coolant to use The use of desalinated water in the engine cooling system is specifically prohibited
2063651/42025-03-08. Service bulletin. WHEELS. Tyre tread/sidewall crack(s)
2063017/42025-03-08. Service bulletin. WHEELS. Road wheel inspection procedure. Condition: In the event a complaint is received regarding road wheel/s condition for example: • Scratches • Corrosion • Damage • Blemishes • Chipping
2056407/62025-03-08. Service bulletin. STRUCTURE:BODY; SUSPENSION; STEERING. Running gear - Noise identification. Customer statement: Noise complaint from the suspension and/or steering.
2052785/92025-03-07. Service bulletin. SERVICE BRAKES. Brake noise identification. Technical Background: Brake noises can be attributed to many causes, the most common causes are as follows: • Brake discs or pads are close to their wear limit • New brake pads and/or discs have not been properly bedded in after installation • Aftermarket pads or discs are installed • There is debris such as small stones, grit, road salt or sand between the brake disc and pad • Discs are covered in rust. Rust can form when the vehicle has been stationary for long periods of time
2063410/72025-03-07. Service bulletin. ELECTRICAL SYSTEM. Infotainment Main unit (5F / J794) fault finding/diagnosis procedure. Condition: Issue suspected with the Infotainment Main unit (5F / J794) - For example: • MMI screen image flickers or goes blank • No response to selection • Audio cuts out
2071131/22024-11-01. Service bulletin. ELECTRICAL SYSTEM. Measured values - Cycle recording instructions. 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.
2069806/52024-04-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. HVAC refrigerant leakage suspected or reports of a damp/musty smell within the cabin - Diagnosis guidelines. Customer statement / workshop findings: HVAC not cooling / HVAC cooling less than expected / HVAC refrigerant leakage confirmed Or The customer reports a damp/musty smell within the cabin Note: For this scenario please see the pre requisites below - Should no HVAC leak be evident and a damp/musty smell has been reported/identified the operative should first confirm that water is not leaking into the cabin please refer to all VIN applicable TPIs - Should there be no water leaks evident, the operative should check the HVAC and body drains for blockages, in the event the drains are blocked the drains must be unblocked, once this has been completed the operative should confirm if the damp/musty smell is still evident.
2051562/122024-04-06. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. 12 Volt - Battery condition checks. Customer statement / workshop findings: 12 volt battery flat or unserviceable Technical background: For all 12 volt battery issues relating to warranty or a parts warranty claim refer to the instructions within the Measure section.
2072055/12023-12-07. Service bulletin. ELECTRICAL SYSTEM. Spurious DTC identification. Customer statement / workshop findings: Customers will not be aware of any DTCs, workshop operatives may discover spurious DTCs whilst running Guided Fault Finding (GFF) when using ODIS Technical background: To determine the course of action which should be taken the operative should refer to the Bentley Hub referencing the following: Spurious DTC list for TPI 2072055 The document contains all known spurious DTCs for all applicable vehicle variants.
2028794.72023-11-08. Service bulletin. ENGINE AND ENGINE COOLING. Engine Coolant Mixture - Restrictions on use of desalinated water Customer Statement: -Engine coolant requires topping up or replacing
2052785.82023-11-08. Service bulletin. SERVICE BRAKES, HYDRAULIC; UNKNOWN OR OTHER. Brake Noise Identification: Customer Statement: -Noise/squeal complaint from the braking system Technical Background: -The noise/squeal can be reproduced and clearly assigned to the braking system

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.