Service bulletins for the 2018 Bentley Bentayga
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.
751 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| 2053348/7 | 2022-08-31. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. W12 Engine management light on - Turbocharger speed sensor DTCs stored Customer Statement: -Engine management light is evident within the DIP Technical Background: -The operative should lease with the customer to clarify the driving conditions in which the issue occurs, see examples below: -Duration the vehicle was driven before the issue was evident -Throttle load (harsh or light acceleration) -What gradient they were driving on (uphill/downhill/flat road surface etc) -Speed of the vehicle when the issue occurred -Road conditions for example: City driving with traffic queues |
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| 2066040/2 | 2022-08-31. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Oil leak from the oil separator/breather connection - Intake manifold whistle - Emission control warning within the DIP Customer statement: -Emission control warning within the DIP Technical Background: -Refer to the Measure section of this TPI -This TPI is applicable to all W12 TSI models including W12 TSI Speed models |
| 2062626/3 | 2022-08-31. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. DTCs stored for all cylinders on Bank 1 or all cylinders on Bank 2 - W12 TSI engine derivative. Customer statement / workshop findings: -DTCs stored for all cylinders on Bank 1 or all cylinders on Bank 2 including multiple cylinder misfires DTC - Misfires logged in one or both engine control units - Engine warning light on - Erratic engine operation Technical background: -Refer to the Measure section of this TPI -This TPI is applicable to all W12 TSI models including W12 TSI Speed models |
| 2065919/2 | 2022-08-05. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Water leaking from mechanical water pump - Low coolant level warning displayed - W12 TSI. Customer statement / workshop findings: - Coolant leaking from the mechanical coolant pump And/or - Low coolant level warning displayed Technical background: The operative MUST ensure the instructions within the Measure section are followed, the instructions differ slightly depending on the part number of the mechanical coolant pump (B or C suffix). |
| 2062080/6 | 2022-07-08. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Bentayga V8 Kovomo and V6 (Hybrid) - Fuel Pressure Regulation - Numerous DTCs. Customer statement / workshop findings: Check Engine Lamp illuminated within the Driver Instrument Panel (DIP) with one or multiple DTCs as detailed below: - P310B00 with symptom code 2636 - Low Fuel Pressure Regulation Low Fuel Pressure Regulation - P014800 Fuel Deliver Error - P019100 Fuel Rail pressure Sensor A Circuit Range/Performance - P018B00 - Fuel Pressure Sensor B Circuit Range/Performance with symptom code 17871 - Misfire DTCs There may be multiple DTCs and symptoms present due to fuel pressure regulation or fuel supply issues Technical background: In the event the customer complaint relates to the following: - Customer experienced poor start up - proceed with the remaining instructions NOTE: The operative must gather information regarding the Customer experience regarding when the issue occurred for example: Pre- conditions, warning lights and driveability at the time that the issue occurred, details when the vehicle was last refueled and the grade of fuel used The operative must now use the information contained within the Measure section to determine the correct analysis and repair procedure. |
| 2058484/7 | 2022-07-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Bentayga V8 Kovomo - DTC P310B00 with Symptom Code 2638 - Check Engine Lamp - Fuel Pressure Regulation. Customer statement / workshop findings Check Engine Lamp illuminated within the Driver Instrument Panel (DIP) in conjunction with the DTC as detailed below: - P310B00 with symptom code 2638 - Low Fuel Pressure Regulation There may be multiple DTCs and symptoms present due to fuel pressure regulation or fuel supply issues Technical background In the event the customer complaint relates to the following: - Customer experienced poor start up or the engine stalled shortly after start up - proceed with the remaining instructions NOTE: The operative must gather information regarding the Customer experience regarding when the issue occurred for example: Pre- conditions, warning lights and driveability at time issue occurred, details when the vehicle was last refuelled and the grade of fuel used The operative must now use the information contained within the Measure section to determine the correct analysis and repair procedure. |
| 2058423/8 | 2022-07-06. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM. New Continental GT/GTC, New Flying Spur and Bentayga - Low Oil Pressure Warning During Early Vehicle Life. Customer statement / workshop findings: Warning on the Driver Instrument Panel (DIP) - Oil pressure too low DTCs relating to oil pressure may also be stored within the Master ECU. Diagnostic Trouble Codes (DTC) P052400: Engine Oil Pressure Too Low and/or P15AA00: Engine oil pressure - Lower limit not reached stored in the Master Engine Control Unit (ECU). Measure: VERY IMPORTANT: Prior to conducting the onward instructions, the following symptoms MUST be evident - Warning on Driver Instrument Panel (DIP) Oil pressure too low And/or - Diagnostic Trouble Codes (DTC) P052400: Engine Oil Pressure Too Low and/or P15AA00: Engine oil pressure - Lower limit not reached stored in the Master Engine Control Unit (ECU) Should any of the afore mentioned not be evident and the symptoms cannot be reproduced No further action should be taken unless the issue can be reproduced or demonstrated by the customer In the event the symptom/s are evident please conduct the onward Diagnosis Instructions |
| 2066591/1 | 2022-05-06. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. DTC P263500 with symptom code -10061 - Noise from within the fuel tank. Customer statement - Engine warning light illuminated within the DIP And/or - Drive system fault warning within the DIP (Figure 1) Workshop findings - DTC P263500 - Fuel Pump A Low Flow/Performance evident within diagnostic address 01 and/or 11 - With symptom code 10061 - Noise from within the fuel tank (fuel pump) - Refer to the video on the Bentley hub referencing TPI 2066591/- Technical background Prior to conducting the instructions within this TPI, the retailer must check and confirm there are no other issues evident with the vehicle for example: - Misfire related DTCs - Low pressure fuel DTCs other than DTC P263500 - Damaged fuel hoses and pipes - Examine all hoses and pipes external of the fuel tank - Fuel leaks. |
| 2065398/2 | 2022-05-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. W12 TSI - Engine MIL light illuminated with numerous DTC's within 0001 including - P032700 and/or P033200. Customer statement: - MIL light displayed - Engine not refined when running Workshop findings The two most common DTCs are as follows: - P032700 - Knock sensor 2 Circuit Low input - address 01 (Engine control module 1) - P033200 - Knock sensor 1 Circuit Low input - address 01 (Engine control module 1) Technical background: In the event the symptoms and/or DTCs are evident the operative should refer to the instructions within the Measure section. |
| 2062080/5 | 2022-04-08. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). Bentayga V8 Kovomo and V6 (Hybrid) - Fuel Pressure Regulation. Customer statement / workshop findings: Check Engine Lamp illuminated within the Driver Instrument Panel (DIP) with one or multiple DTCs as detailed below: -P310B00 with symptom code 2636 - Low Fuel Pressure Regulation Low Fuel Pressure Regulation -P014800 Fuel Deliver Error -P019100 Fuel Rail pressure Sensor A Circuit Range/Performance Misfire DTCs There may be multiple DTCs and symptoms present due to fuel pressure regulation or fuel supply issues, Measure: Check Engine Lamp Illumination with DTC P310B00 and symptom code 2636 - Engine Running Concerns, Fuel system issues -P310B00 Low Fuel Pressure Regulation symptom code 2636 -P014800 Fuel Deliver Error -P019100 Fuel Rail pressure Sensor A Circuit Range/Performance Misfire DTCs 1) If not already done, raise a DISS query. 2) Check Low fuel pressure, specified value and Fuel low pressure, actual value within the fault memory, refer to ECU 01 Engine Control Module 1 - From Extended ambient conditions note the values of the Low fuel pressure, specified value and Fuel low pressure, actual value as shown in Figure 1. |
| 2065918/1 | 2022-03-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. V8 Kovomo - Bentayga - Water pump drive gear cover (Deletion). Customer statement / workshop findings: The original water pump has a cover fitted directly over the top of the water pump drive gear (Figure 1) However the replacement water pump does not have a cover fitted (Figure 2) Technical background: The cover is no longer fitted on replacement water pumps, the cover is not required and MUST not be transferred to the new water pump The operative should fit the new water pump without the cover as shown in Figure 2 NOTE: DISS queries or Service calls should not be submitted for this concern |
| 2058484/6 | 2022-03-02. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Bentayga V8 Kovomo - DTC P310B00 with Symptom Code 2638 - Check Engine Lamp - Fuel Pressure Regulation. Customer statement / workshop findings: Check Engine Lamp illuminated within the Driver Instrument Panel (DIP) in conjunction with the DTC as detailed below: - P310B00 with symptom code 2638 - Low Fuel Pressure Regulation There may be multiple DTCs and symptoms present due to fuel pressure regulation or fuel supply issues. Measure: Check Engine Lamp Illumination with DTC P310B00 and symptom code 2638 1) For vehicles that only have the symptoms: - Check Engine Lamp Illumination with DTC P310B00 and symptom code 2638 with an Adaption of Fuel Pump (FP) figure of minus 100 to minus 200 kPa Figure 1 - the Fuel Delivery Module within the fuel tank should be replaced Figure 2 - Refer to Repair Group 20 Fuel supply, gas operation / 4.0L V8 TSI / Fuel pump, fuel level sensors, and jet pump (RH) To remove and fit. |
| 2062080/4 | 2022-03-02. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Bentayga V8 Kovomo - Fuel Pressure Regulation. Customer statement / workshop findings: Check Engine Lamp illuminated within the Driver Instrument Panel (DIP) with one or multiple DTCs as detailed below: - P310B00 with symptom code 2636 - Low Fuel Pressure Regulation Low Fuel Pressure Regulation - P014800 Fuel Deliver Error - P019100 Fuel Rail pressure Sensor A Circuit Range/Performance - Misfire DTCs There may be multiple DTCs and symptoms present due to fuel pressure regulation or fuel supply issues. Measure: Check Engine Lamp Illumination with DTC P310B00 and symptom code 2636 - Engine Running Concerns, Fuel system issues - P310B00 Low Fuel Pressure Regulation symptom code 2636 - P014800 Fuel Deliver Error - P019100 Fuel Rail pressure Sensor A Circuit Range/Performance - Misfire DTCs 1) If not already done, raise a DISS query. 2) Check Low fuel pressure, specified value and Fuel low pressure, actual value within the fault memory, refer to ECU 01 Engine Control Module 1 - From Extended ambient conditions note the values of the Low fuel pressure, specified value and Fuel low pressure, actual value as shown in Figure 1. |
| 2065919/1 | 2022-03-02. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Water leaking from mechanical water pump - Low coolant level warning displayed - W12 TSI. Workshop findings: - Coolant leaking from the mechanical coolant pump And/or - Low coolant level warning displayed Technical background: The operative MUST ensure the instructions within the Measure section are followed, the instructions differ slightly depending on the part number of the mechanical coolant pump (B or C suffix). |
| 2066040/1 | 2022-03-02. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Oil leak from the oil separator/breather connection - Intake manifold whistle - Emission control warning within the DIP. Customer statement / workshop findings: - Emission control warning within the DIP And/or - Whistling noise(s) from the Inlet manifold Workshop findings: Oil leak between the oil separator tank and the Bank 1 breather line connection (Figure 1) NOTE: Oil leak detection spray is evident within Figure1, the use of detection spray in the example shown highlights the location of the leak. Measure: 1) Referring to Rep.Gr 17 - Gain access to the oil separator tank 2) Referring to Figure 2 - Replace the following parts and all associated parts as detailed within the applicable Rep.Gr and the ETKA parts catalogue |
| 2058423/7 | 2022-03-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. New Continental GT / GTC, New Flying Spur and Bentayga - Low Oil Pressure Warning During Early Vehicle Life. Customer statement / workshop findings: Warning on the Driver Instrument Panel (DIP) - Oil pressure too low DTCs relating to oil pressure may also be stored within the Master ECU. Diagnostic Trouble Codes (DTC) P052400: Engine Oil Pressure Too Low and/or P15AA00: Engine oil pressure - Lower limit not reached stored in the Master Engine Control Unit (ECU). Measure VERY IMPORTANT: Prior to conducting the onward instructions, the following symptoms MUST be evident - Warning on Driver Instrument Panel (DIP) Oil pressure too low And/or - Diagnostic Trouble Codes (DTC) P052400: Engine Oil Pressure Too Low and/or P15AA00: Engine oil pressure - Lower limit not reached stored in the Master Engine Control Unit (ECU) Should any of the afore mentioned not be evident and the symptoms cannot be reproduced. No further action should be taken unless the issue can be reproduced or demonstrated by the customer. In the event the symptom/s are evident please conduct the onward Diagnosis Instructions |
| 2065398/1 | 2022-01-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. W12 TSI - Engine MIL light illuminated with numerous DTCs within 0001 including - P032700 and/or P033200. Customer statement - MIL light displayed - Engine not refined when running Workshop findings The two most common DTCs are as follows: - P032700 - Knock sensor 2 Circuit Low input - address 01 (Engine control module 1) - P033200 - Knock sensor 1 Circuit Low input - address 01 (Engine control module 1) Please note: The DTCs listed are the two most common DTCs (seen to date) although other DTCs may be evident depending on the failure mode (including the boost control solenoid and crankcase ventilation heater DTCs) |
| 2064679/1 | 2021-11-05. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:SOLENOID/ACTUATOR. Customer statement / workshop findings Oil leaking out of the tell tale hole from the following fixings: -CDA activation/ deactivation solenoid fixings -Or Fuel rail fixings -Or Fixings for the vacuum system assembly Technical background: Shows oil leaked which had leaked from the tell tale hole at the top of the fixing. Upgraded fixings prevent oil leaks from the tell hole. |
| 2053429/4 | 2021-10-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Emission control system lamp illuminated - DTC P044100 evident. Customer statement / workshop findings: Emission control system warning lamp illuminated (Figure 1) within the Driver Information Panel (DIP) in conjunction with DTC - P044100: EVAP Emission Contr.Sys.Incorrect Purge Flow - logged within one or both engine control modules. Technical background: Should DTC P044100: EVAP Emission Contr.Sys.Incorrect Purge Flow be evident (static or intermittent) within one or both Engine control modules please refer to the instructions within the Measure section of this TPI |
| 2053351/7 | 2021-10-06. Service bulletin. ENGINE AND ENGINE COOLING; STRUCTURE. Buzzing noise from engine area. Customer statement / workshop findings Workshop findings: Buzzing noise heard at idle from the sump area when the vehicle is elevated on a workshop ramp. The noise cannot be heard from inside the cabin or outside of the vehicle in normal circumstances. Technical background: A buzzing noise can be generated by the oil pump when the engine is running at idle. Measure: Test a comparable vehicle with the same Engine derivative. If the same noise is apparent on the comparable vehicle and no oil pressure warnings or relevant DTCs are stored then the noise can be considered a characteristic of the vehicle and no further action should be taken. |
| 2057978/5 | 2021-10-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Engine Lubricating Oil - Replenishment. Customer statement / workshop findings Engine lubricating oil lamp illuminated on driver instrument panel. Engine lubricating oil requires topping up between services. Technical background: In order to provide effective lubrication and cooling of internal engine components, all internal combustion engines consume a certain amount of engine oil. Oil consumption varies from engine to engine and may change significantly over the life of the engine. Typically, engines with specified running-in periods consume more oil during the running-in period, and the oil consumption will stabilize after the running-in period. Refer to the Owners Manual for specific running-in procedures. Under normal conditions, the rate of oil consumption depends on the quality and viscosity of the oil, the RPM at which the engine is operated, ambient temperature and road conditions. Additional factors are the amount of oil dilution from water condensation or fuel residue, and the oxidation level of the oil. Certain driving conditions may negatively influence the rate of oil consumption. This can occur while the vehicle is operated in city driving conditions, for example: stop and go traffic with extended idle periods |
| 2060205/3 | 2021-10-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Engine Cooling System - DTC P218100 - V8 Kovomo Customer statement / workshop findings: Emission Control Lamp illuminated on Driver Instrument Panel. The time to reach the correct engine coolant operating temperature has increased. Diagnostic Trouble Code(DTC) P218100 -Cooling System Performance is stored in the Engine Control Module (ECM), the vehicle warm up time is longer when compared to other vehicles of the same type. Technical background: It is possible for the engine coolant Thermostat to corrode overtime, this corrosion is due to an adverse reaction of the Thermostat material with the engine coolant. The corrosion and subsequent build-up of debris prevents the correct operation of the thermostat when closing, resulting in over cooling. The ECM triggers a DTC when the target engine temperature is outside of the specified parameter. |
| 2063954/3 | 2021-10-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Engine warning light illuminated within the DIP during acceleration - DTC P029900 evident - W12 TSI only Customer statement: Engine warning light and max engine speed 4000 rpm warning evident within the DIP during acceleration - Warning on DIP first appears when accelerating (During boost) Workshop findings: DTC P029900 evident within the engine control unit/s In the event the afore mentioned symptoms are evident the operative should refer to the onward instructions |
| 2050334/7 | 2021-10-05. Service bulletin. ENGINE AND ENGINE COOLING. Ticking noise from engine bay. Customer statement / workshop findings: Ticking noise emanating from rear of Bank 1 cylinder head Technical background: Noise from failed vacuum pump. Measure: A specific vacuum pump failure is known to create a ticking noise. This ticking noise, on initial inspection, is easily misinterpreted as a fault in the valve train or fuel injector, when in reality it is more likely to be produced by a defective vacuum pump. Therefore always ensure that this type of noise is identified precisely using a stethoscope. Specifically use the stethoscope to check the vacuum pump located at the rear of Bank 1 cylinder head, when this is found to be the origin of the noise then change the vacuum pump and retest. |
| 2049586/8 | 2021-10-05. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Misfiring, W12 TSI - Excessive carbon build up cylinder leakage. Customer statement / workshop findings: Customer statement: Emission control warning signal displayed, engine misfire Workshop findings: Event entries in engine control unit relating to cylinder misfires excessive carbon build up to leading to cylinder leakage and spark plug foul. Technical background: Deviations in the country-specific fuel specifications can lead to carbon deposits on the injectors. If pronounced these deposits can lead to spark plug fouling, cylinder leakage and fouled injectors all influencing combustion in the cylinder. As a result the above event entries are logged in the engine control unit. Measure: - Follow the Misfire best practice TPI 2051187 in order to confirm that the root cause of the misfire is excessive cylinder carbonisation leading to excessive cylinder leakage/fouling |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.