Service bulletin 2038974/2
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 | 10170173 |
| Published by NHTSA | 2020-07-28 |
| Manufacturer's number | 2038974/2 |
| Manufacturer's date | 2015-05-01 |
| NHTSA component | ENGINE AND ENGINE COOLING |
NHTSA's summary
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
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine
| BENTLEY MULSANNE | 2011, 2012, 2013, 2014, 2015 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 2051187/13 | 2026-08-05. Service bulletin. 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 | 2026-07-31. Service bulletin. Service info: Engine oil – Specific oil type and oil consumption reference. |
| 2028794/10 | 2026-07-29. Service bulletin. Engine coolant mixture - Restrictions on use of desalinated water. |
| 2064337/4 | 2025-11-07. Service bulletin. 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. |
| 2028808/9 | 2025-11-06. Service bulletin. Service info: Engine oil - Specific oil type and oil consumption reference. 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 |
| 2051187/12 | 2025-11-06. Service bulletin. 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) |
| 2028794/9 | 2025-11-06. Service bulletin. 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 |
| 2075786/2 | 2025-10-30. Service bulletin. 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. |
| 2051187/11 | 2025-05-07. Service bulletin. 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) |
| 2064337/3 | 2025-04-02. Service bulletin. 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 |