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Service bulletins for the 2021 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.

757 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

Bulletins, newest first
2061369/142026-09-09. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Engine Overheating - Warning in the DIP | V8 Kovomo. Customer statement / workshop findings: One or a combination of the following symptoms are evident • Engine overheat warning in the DIP (Engine overheating) • Unusual cooling fan operation at high temperatures • P19F700: Low engine coolant temperature indicator lamp coolant too warm • Signs of coolant in the vacuum hoses for switch valve N649
2061369/132026-09-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Engine Overheating - Warning in the DIP | V8 Kovomo. Customer statement / workshop findings: One or a combination of the following symptoms are evident: • Engine overheat warning in the DIP (Engine overheating) • Unusual cooling fan operation at high temperatures • P19F700: Low engine coolant temperature indicator lamp coolant too warm • Signs of coolant in the vacuum hoses for switch valve N649
2081085/22026-08-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE. V8 Engine - Ticking Noise, Misfiring and Possible Low Oil Pressure Indications. Customer statement: The customer may report an audible ticking noise from the top of the engine, low oil pressure warnings / MIL on the Driver Information Panel, and/or misfiring during engine operation
2051187/132026-08-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 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)
2068273/62026-08-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Multiple random misfires evident during PDI.
2065664/62026-08-01. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Bentayga V8 Kovomo - Engine MIL light on - DTC “O2 Sensor Signals Swapped Bank 1 Sensor 2/ Bank 2 Sensor 2. Customer statement / workshop findings: DTC P004100: “O2 Sensor Signals Swapped Bank 1 Sensor 2/ Bank 2 Sensor 2 is evident within address 0001 (Engine control unit) and MIL light active after attempting to conduct a readiness test
2081236/22026-08-01. Service bulletin. ENGINE; VISIBILITY/WIPER; ELECTRICAL SYSTEM. Loss of Cabin Heat During Engine Operation | Bentayga - V8. Customer Statement: Customers may report that the air conditioning system blows only cold air when the engine is running. Warm air is only available after switching off the engine. The concern is commonly reported after engine removal or recent repair work.
2071190/42026-08-01. Service bulletin. ENGINE; VISIBILITY/WIPER; ELECTRICAL SYSTEM. HVAC failing to cool | DTC B16A1F0 in diagnostic address 00C5 | Bentayga Series (Hybrid).
2075922/42026-08-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE; FUEL/PROPULSION SYSTEM. High pitched whistle from the engine - Warning light within the DIP - Engine not running smoothly - Numerous DTC's. Customer statement/Workshop findings: • Emission control warning light evident within the DIP • Engine not running/idling smoothly • High pitched whistle from the right and left hand side of the engine TIP: Refer to video within the Bentley Hub referencing TPI 2075922/- • A selection of DTC’s are evident (as per TPI Event memory entries)
2065926/62026-08-01. Service bulletin. ENGINE; FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. Fuel pressure regulator - DTC P242200 with symptom code 14536 evident within address 0001. Customer statement: The warning lamp for the emission control system is displayed within the DIP
2058484/162026-07-31. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM; ENGINE. Bentayga V8 Kovomo - DTC P310B00 with Symptom Code 2638 - Check Engine Lamp - Fuel Pressure Regulation. Customer statement / workshop findings: Engine warning lamp is 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 also be multiple DTC’s and symptoms present due to fuel pressure regulation or fuel supply issues in conjunction with the afore mentioned symptom/DTC
2055664/42026-07-31. Service bulletin. ELECTRICAL SYSTEM; ENGINE. DTC P14AB00 and/or other related exhaust flap DTC's - Warning lamp evident within the DIP.
2028808/102026-07-31. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Service info: Engine oil – Specific oil type and oil consumption reference.
2057978/102026-07-31. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 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.
2075318/52026-07-30. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Engine light in the DIP - Various Camshaft adjuster DTC’s logged within the Engine Control Module(s).
2075331/52026-07-29. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Engine light in the DIP - Various oxygen sensor / Fuel ratio DTC’s logged within the Engine Control Module(s). Customer statement / workshop findings: Engine light in the DIP - Various oxygen sensor / Fuel ratio DTC’s logged within the Engine Control Module (s)
2028794/102026-07-29. Service bulletin. ENGINE. Engine coolant mixture - Restrictions on use of desalinated water.
2080097/22026-07-29. Service bulletin. ENGINE; FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM; EXTERIOR LIGHTING; STRUCTURE:BODY. Service info: Conversion of imported vehicles. Technical background: Conversion of a vehicle for use in a market other than the one for which it was originally designed or intended is not supported. Enquiries related to conversions or retrofits of vehicles from (or to) other markets (e.g. reimport from USA or UK) are not supported by Technical Support. Vehicles are developed and constructed according to specific market requirements of the respective destination country. As the compatibility of different components (e.g. control units) cannot be defined comprehensively regarding their mutual dependence and interaction in the case of modifications, and in order to prevent danger or risks due to constructional changes, support or advice regarding these modifications cannot be provided.
2078190/72026-07-28. Service bulletin. ELECTRICAL SYSTEM; ENGINE. AC System not Cooling - HVAC Leakage Customer Statement: The customer may find that the A/C system not blowing cold air and / or Cooling performance has declined over time.
2061369/122026-07-28. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Engine Overheating - Warning in the DIP | V8 Kovomo One or a combination of the following symptoms are evident: • Engine overheat warning in the DIP (Engine overheating) • Unusual cooling fan operation at high temperatures • P19F700: Low engine coolant temperature indicator lamp coolant too warm • Signs of coolant in the vacuum hoses for switch valve N649
2075140/32026-06-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Engine cooling system over cooling - One or a combination of DTC's may be evident P218100 - P1BB400.
2081947/12026-06-03. Service bulletin. ELECTRICAL SYSTEM; ENGINE. W12 Engine - DTC P192400 control module pin code implausible signal logged in 0001 /0011. Customer Statement: The customer may report one or more of the following after vehicle repairs: • Engine does not start following workshop work • Drive System Fault warning displayed in the instrument cluster (Kombi).
2079115/22026-04-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Turbo Charger Under-boost - DTC P029900 is evident in 0001 | V8 Kovomo | All Models. Customer Statement: The engine warning light comes on and the vehicle loses power.
2081236/12026-04-04. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER; ENGINE. Loss of Cabin Heat During Engine Operation | Bentayga - V8. Customers may report that the air conditioning system blows only cold air when the engine is running. Warm air is only available after switching off the engine. The concern is commonly reported after engine removal or recent repair work.
2081243/12026-04-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Service Info: Engine Control Module (ECM) 5V Reference Circuits. This TPI provides supplementary technical information to support diagnosis of ECM 5V reference circuit DTCs. It details the sensors associated with each reference circuit (A, B, and C) and outlines relevant guidance to assist in isolating faults when any of the following DTCs are stored in the Engine Electronics (diagnostic address: 0001)

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