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.
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By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| 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. |
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| 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 |
| 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 |
| 2061369/2 | 2021-05-06. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Engine overheating - Warning on the DIP - V8 Kovomo Customer statement / workshop findings: - Customer reports an engine overheat warning on the DIP - Engine overheats - Unusual cooling fan operation at high temperatures - There are no signs of coolant leaks both internally or externally Technical background: To heat the engine as quickly as possible during cold starting, delivery of coolant from the coolant pump is interrupted in the warm-up phase by the solenoid valve for the mechanical coolant pump |
| 2062080/2 | 2021-04-08. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. 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. 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 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 |
| 2062626/1 | 2021-04-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; 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 |
| 2055235/2 | 2021-03-05. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; FUEL SYSTEM, GASOLINE. Fuel tank internal fuel pump replacement - W12 TSI. Customer statement / workshop findings: Prior to replacing the fuel delivery module or fuel pump control units please refer to the information within this TPI. This TPI is applicable for W12 Bentayga TSI engine variants only. Technical background: The twin fuel pumps which are part of the fuel delivery module (located on the right hand side of the fuel tank as Figure 1) have changed to an improved Diamond Like Coated (DLC) fuel pump. |
| 2058484/5 | 2021-03-05. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. 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 |
| 2062092/1 | 2021-03-05. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Bentayga V8 Kovomo - DTC P304300 with symptom code (10061) - Fuel Pump Mechanical Malfunction - MIL lamp Customer statement: Check Engine Lamp illuminated within the Driver Instrument Panel (DIP) Workshop findings: DTC P304300 with symptom code (10061) - Fuel Pump Mechanical Malfunction evident Technical background: Refer to the Measure section of this TPI |
| 2058484/4 | 2021-01-08. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Bentayga V8 Kovomo - Check Engine Lamp - 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 Low Fuel Pressure Regulation. P014800 Fuel Deliver Error. P019100 Fuel Rail pressure Sensor Circuit Range/Performance. Misfire DTC. There may be multiple DTCs and symptoms present due to fuel pressure regulation or fuel supply issues |
| 2061369/1 | 2020-12-04. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Engine overheating - Warning on the DIP - V8 Kovomo. Customer statement / workshop findings: -Customer reports an engine overheat warning on the DIP -Engine overheats -Unusual cooling fan operation at high temperatures -There are no signs of coolant leaks both internally or externally Technical background: To heat the engine as quickly as possible during cold starting, delivery of coolant by the coolant pump is interrupted in the warm-up phase by the solenoid for the mechanical coolant pump. The solenoid is designed to cut off the vacuum supply to the coolant pump when the engine reaches the maximum temperature, the vacuum cut off allows the engine to start circulating coolant by retracting a sleeve which is situated around the coolant pump impeller. When the solenoid is at fault (sticking open) the vacuum supply is constant, this allows the sleeve to stay in position around the impellor which leads to the symptoms described within the Customer statement/Workshop findings section of this TPI. |
| 2058484/3 | 2020-12-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. Bentayga V8 Kovomo - Check Engine Lamp - 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 Low Fuel Pressure Regulation P014800 Fuel Deliver Error P019100 Fuel Rail pressure Sensor Circuit Range/Performance Misfire DTCs There may be multiple DTCs and symptoms present due to fuel pressure regulation or fuel supply issues |
| 2061040/2 | 2020-12-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Abnormal buzzing/vibrating/grinding noise (Front of vehicle). Customer statement / workshop findings. Customer statement: Buzzing/vibrating/grinding noise can be heard from the front of the engine, mainly from cold start at idle Workshop findings Noise emitting from the air conditioning belt idler (Figure 1 Point A) Technical background: Should the noise be evident from the air conditioning belt idler - Refer to the Measure section of this TPI The operative must confirm the noise is not from any other components for example the alternator belt tensioner before conducting the instructions within the Measure section of this TPI. |
| 2061040/1 | 2020-11-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING. Abnormal buzzing/vibrating/grinding noise (Front of vehicle). Customer statement / workshop findings: Buzzing/vibrating/grinding noise can be heard from the front of the engine, mainly from cold start at idle Workshop findings Noise emitting from the air conditioning belt idler (Figure 1 Point A) Technical background: Should the noise be evident from the air conditioning belt idler - Refer to the Measure section of this TPI |
| 2055898/2 | 2020-11-07. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Whining noise and/or oil leaking from the alternator belt tensioner. Customer statement / workshop findings: Whining noise can be heard from the front of the engine Workshop findings Oil leaking from the Alternator belt tensioner Technical background: Should oil be evident on the alternator belt tensioner, refer to the Measure section of this TPI |
| 2053351/6 | 2020-11-03. Service bulletin. ENGINE AND ENGINE COOLING. 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. |
| 2049586/7 | 2020-11-03. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. 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 |
| 2057978/4 | 2020-11-03. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. 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. |
| 2050334/6 | 2020-11-03. Service bulletin. EQUIPMENT; 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 |
| 2060205/2 | 2020-11-03. Service bulletin. ENGINE AND ENGINE COOLING. Engine Cooling System - DTC P218100 - V8 Kovomo Technical background: It is possible for the engine coolant Thermostat to corrode over time, 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 |
| 2058484/2 | 2020-10-06. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE; ELECTRICAL SYSTEM. Bentayga - Check Engine Lamp - Fuel Pressure Regulation. Customer statement / workshop findings Check Engine Lamp illuminated on Driver Instrument Panel (DIP) Diagnostic Trouble Code (DTC) P310B00 Low Fuel Pressure Regulation stored in the Engine Control Unit. DTC P014800 Fuel Delivery Error stored in the Engine Control Unit. Misfire DTC stored in the Engine Control Unit. Technical background There may be multiple DTCs and symptoms present due to fuel pressure regulation or fuel supply issues, use the information contained within the Measure section to determine the correct analysis and repair procedure. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.