# Service bulletin 2063354/1

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: 10195068
- Published by NHTSA: 2021\-06\-05
- Manufacturer's number: 2063354/1
- Manufacturer's date: 2021\-05\-18
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

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

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10195068-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10195068-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- 2019 to 2021 BENTLEY BENTAYGA
- 2020 to 2021 BENTLEY CONTINENTAL GT
- 2020 to 2021 BENTLEY CONTINENTAL GT CABRIO
- 2021 BENTLEY FLYING SPUR

## Other bulletins for the same vehicles and component

- [2061369/14](/bulletins/11037161.md), 2026-09-09, 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
- [2061369/13](/bulletins/11037097.md), 2026-09-05, 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
- [2081085/2](/bulletins/11035939.md), 2026-08-06, 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
- [2051187/13](/bulletins/11035901.md), 2026-08-05, 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\(s\)
- [2068273/6](/bulletins/11035569.md), 2026-08-03, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Multiple random misfires evident during PDI.
- [2065664/6](/bulletins/11035418.md), 2026-08-01, 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
- [2081236/2](/bulletins/11035417.md), 2026-08-01, 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.
- [2071190/4](/bulletins/11035415.md), 2026-08-01, Service bulletin: ENGINE; VISIBILITY/WIPER; ELECTRICAL SYSTEM. HVAC failing to cool \| DTC B16A1F0 in diagnostic address 00C5 \| Bentayga Series \(Hybrid\).
- [2075922/4](/bulletins/11035414.md), 2026-08-01, 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 \(as per TPI Event memory entries\)
- [2065926/6](/bulletins/11035412.md), 2026-08-01, 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

JSON: [/v1/bulletins/10195068](/v1/bulletins/10195068)

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