Service bulletins for the 2020 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.
753 on file from NHTSA, as of 2026-10-19.
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By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| 2064776/2 | 2022-01-08. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. V8 Kovomo - Engine misfires - Engine management light illuminated within the DIP. Customer statement / workshop findings: - Engine misfiring - Engine running rough (not refined) - Engine misfire DTC’s evident - Engine management light illuminated within the DIP - Knocking noise from the cylinder head (NOTE: The noise can be evident on either bank) IMPORTANT: The symptoms described are typically evident during early life stages of vehicle use (between 100Km and 250Km) Technical background Refer to the Measure section of this TPI in the event the symptoms are as described |
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| 2063725/2 | 2022-01-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE; EQUIPMENT. Bentayga Hybrid - HVAC compressor noise. Customer statement / workshop findings High frequency noise audible from inside the cabin and/or when standing at the front of the vehicle, the noise is mainly evident whilst operating in hot ambient temperatures The noise increases with compressor speed and interior fan demand Technical background Upon receipt of a customer complaint for excessive HVAC compressor noise, Refer to the video on the Bentley Hub referencing TPI 2063725/- If the noise is as shown within the video, the customer should be advised that this is normal and does not represent a failure or malfunction on the vehicle Ensure customers of Hybrid vehicles are aware of the following: - The HVAC compressor is isolated to the High voltage system and is not controlled by the engine or engine speed - In conditions of high ambient temperature, the operation of the compressor can be audible - This is a known characteristic of this compressor and does not signify a fault Any other noise or fault which is not as described should be reported via an open DISS query The operative should wait for a response from Product Support before conducting any further work |
| 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) |
| 2065215/1 | 2021-12-07. Service bulletin. ENGINE AND ENGINE COOLING. V8 Kovomo engine replacement (Fitment of ancillary components). Customer statement / workshop findings: Torque values for ancillary components (used during engine replacement) are not currently available within the Repair manual. The affected components and torque values are as listed within the Technical background section of this TPI. Measure: Refer to the Technical background section |
| 2064776/1 | 2021-11-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Customer statement / workshop findings -Engine misfiring -Engine running rough (not refined) -Engine misfire DTCs evident -Engine management light illuminated within the DIP -Knocking noise from the cylinder head (NOTE: The noise can be evident on either bank) IMPORTANT: The symptoms described are typically evident during early life stages of vehicle use (between 100Km and 250Km) |
| 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 |
| 2063354/2 | 2021-10-06. Service bulletin. ENGINE AND ENGINE COOLING. V8 Kovomo - Whining noise - Front of the engine at idle speed Customer statement: Erratic whining noises from the front of the engine at idle speed. Workshop findings: The irregular knocking noises can be assigned to the front of the engine. There are no further complaints (such as poor engine or engine cooling system performance, event entries, etc.) |
| 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 |
| 2051219/6 | 2021-10-05. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. W12 TSI Camshaft Phaser Position Related DTC. Customer statement / workshop findings: Customer reporting Emission Control Warning Indicator displayed. Engine running rough. |
| 2051187/6 | 2021-10-05. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Poor Engine Running Complaints (Misfires) Petrol Engines Only. Customer statement / workshop findings: Poor engine running, reduced power, engine warning lamp illuminated. Technical background: Technical Product Information (TPI) to assist Retailers when diagnosing poor engine running or misfire. Measure: The following TPI should be carried out sequentially to ensure the root cause and analysis of the concern are identified without unnecessary work or repetitive actions taking place. |
| 2028808/5 | 2021-10-04. Service bulletin. ENGINE AND ENGINE COOLING. Service info: Engine oil Specific oil type and oil consumption reference. Customer statement / workshop findings: 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 |
| 2055321/2 | 2021-09-04. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Bentayga W12 - DTC 310B00 - Low fuel pressure regulation. Customer statement / workshop findings: Engine stalling when the engine is started from cold (at idle) Or after a delayed cold start. These issues can trigger DTC 310B00: Low Fuel Pressure regulation, Fuel pressure outside specification The following symbol can also be displayed on the Driver Instrument Panel (DIP) in conjunction with an error message start/stop unavailable |
| 2053348/4 | 2021-09-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. W12 Engine management light on - Turbocharger speed sensor DTCs stored. Customer statement / workshop findings - The engine management light is on. Workshop findings: The customer statement can be reproduced. Either of the following DTCs are stored in address 01 Engine Control Module 1 or address 11 Engine Control Module 2 |
| 2064093/1 | 2021-08-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; STRUCTURE. Loss of the EV Mode Active Pedal Detent Feature. Customer statement / workshop findings Loss of the EV Mode Active Pedal Detent feature on the vehicle. No force can be felt by driver when passing through the EV Mode threshold during the trajectory travel of the accelerator pedal TIP: Please also refer to the Owners handbook regarding accelerator pedal feedback response before commencing with the instructions within the Measure section. Technical background Software update for 0697 - Active accelerator pedal is available (slave Control unit of 0001 - ECM1) |
| 2063954/1 | 2021-08-06. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. 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 Technical background: One of the turbochargers may not be achieving full boost, the issue can be related to a poor connection between the applicable boost pressure valve vacuum solenoid and the signal wire to the applicable Engine Control Module (ECM) leading to a lack of vacuum supplied to the waste- gate when under load In the event the afore mentioned symptoms are evident the operative should refer to the instructions within the Measure section of this TPI in conjunction with Rep.Gr 21 - Boost pressure valve vacuum solenoid (to assist identifying the component location) |
| 2058423/6 | 2021-07-02. Service bulletin. ENGINE AND ENGINE COOLING. New Continental GT / GTC, New Flying Spur and Bentayga Speed - Low Oil Pressure Warning During Early Vehicle Life. Condition: 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). Service: 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 |
| 2063354/1 | 2021-06-05. Service bulletin. ENGINE AND ENGINE COOLING. V8 Kovomo - Whining noise - Front of the engine at idle speed. Customer statement / workshop findings: Erratic whining noises from the front of the engine at idle speed. Workshop findings: The irregular knocking noises can be assigned to the front of the engine. There are no further complaints (such as poor engine or engine cooling system performance, event entries, etc.) Technical background: Refer to the video on the Bentley hub referencing TPI 2063354/- In the event the whining noise is as within the video, please refer to the Measure section of this TPI |
| 2060418/2 | 2021-06-05. Service bulletin. ENGINE AND ENGINE COOLING. Vehicle vibration / humming at idle - Active engine mount leak - Active engine mount replacement. Customer statement / workshop findings: Vehicle vibration / humming noise at idle. Technical background: Right hand Active Engine Mount (AEM) failed, oil may also be leaking from the AEM (Figure 1). This failure mode is only seen on W12 engine installations and is only apparent at idle. |
| 2063297/1 | 2021-06-04. Service bulletin. ENGINE AND ENGINE COOLING. Static DTCs C113107 and or C113207 evident within Diagnostic address 00BA. Customer statement / workshop findings The following Static DTCs are evident following the fitment of replacement Active engine mounts and/or the Active Engine mount control unit (00BA) with the part number 4M0907145E with SW 0132 (often as result of TPI 2060418/-) C113107: Actuator 1 for assembly mounting mechanical malfunction Symptom Code 784 And/or C113207: Actuator 2 for assembly mounting mechanical malfunction Symptom Code 785 Technical background Refer to the Measure section of this TPI |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.