# Service bulletin 2071668.1

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: 10245079
- Published by NHTSA: 2023\-11\-08
- Manufacturer's number: 2071668.1
- Manufacturer's date: 2023\-10\-12
- NHTSA component: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

## NHTSA's summary

V8 Kovomo \- Engine Misfires \- Engine management light illuminated within the DIP Customer Statement: \-Engine misfiring \-Engine running rough \(not refined\) \-Engine misfire DTCs evident \-Engine management light illuminated within the DIP \-Knocking noise from the cylinder head

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10245079-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10245079-9999.pdf)

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

## Components

Electrical system, Engine

## Vehicles listed

- 2018 BENTLEY BENTAYGA
- 2020 to 2024 BENTLEY BENTAYGA
- 2020 to 2024 BENTLEY CONTINENTAL GT
- 2020 to 2024 BENTLEY CONTINENTAL GT CABRIO
- 2020 to 2024 BENTLEY FLYING SPUR

## Recalls for the same vehicles and component

- [25V811000](/recalls/nhtsa/25V811000.md), 2025-11-24: ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE \(HPCU\):SOFTWARE
- [23V034000](/recalls/nhtsa/23V034000.md), 2023-01-27: ELECTRICAL SYSTEM

## Other bulletins for the same vehicles and component

- [2083016/1](/bulletins/11038364.md), 2026-10-08, Service bulletin: ELECTRICAL SYSTEM. SOS Fault \& Flight Mode Active \| Bentayga Customer: Warning on the instrument cluster relating to Emergency Call / SOS System.
- [2083110/1](/bulletins/11038253.md), 2026-10-07, Service bulletin: ENGINE; ELECTRICAL SYSTEM. Engine Management Light \- N91 Coolant Valve \| Flying Spur Hybrid Technical background: Some 22MY Flying Spur Hybrid vehicles may exhibit an illuminated Malfunction Indicator Lamp \(MIL\) due to DTC P26B100 \- Engine Coolant Bypass Valve "A" Stuck Closed being stored in the Thermal Management Control Module \(00C5\). When this DTC is present, the Thermal Management system displays MIL light on the DIP, resulting in DTC P162400 being stored in the Engine Control Module. A software update is available to address this condition.
- [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
- [2078373/4](/bulletins/11036783.md), 2026-09-03, Service bulletin: VISIBILITY/WIPER; STRUCTURE:BODY; ELECTRICAL SYSTEM. Sunroof blind not retracting \| Bentayga Series. Customer may report that the sunroof blind is stuck in the closed position and cannot be opened using interior controls. The Sunroof blind is stuck due to uneven/ruffled or crumped during open or closing
- [2078962/7](/bulletins/11036563.md), 2026-09-01, Service bulletin: ELECTRICAL SYSTEM. ODIS Error Message – Best Practice When Performing Baseline \(BiL\) Updates. Workshop Findings: During vehicle baseline \(BiL\) updates using ODIS, users may encounter various error messages. These errors can interrupt the update process and may be caused by issues related to the vehicle’s current configuration, communication faults, or problems with the SVM code being applied.
- [2080375/4](/bulletins/11036037.md), 2026-08-07, Service bulletin: VISIBILITY/WIPER; ELECTRICAL SYSTEM; STRUCTURE:BODY. Window Drop Glass Operation \| Continental GT/GTC \|19\-24MY. Customer statement / workshop findings: • Incorrect operation / function of the front and / or rear window drop glass • Front and / or rear drop glass fails to open / close or attempts to close and re\-opens once contact has been made between the glass and applicable seal • DTC for window regulator motor no basic setting B148754 evident within any of the 4 window control modules \(diagnostic address 42, 52, BB and BC\) for loss of basic settings
- [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
- [2073377/4](/bulletins/11035933.md), 2026-08-06, Service bulletin: WHEELS; ELECTRICAL SYSTEM. TPMS \- Warning within the Drivers Information Panel \(DIP\) \- Tyre pressure sensor \- Low battery.
- [2078373/3](/bulletins/11035932.md), 2026-08-06, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM; VISIBILITY/WIPER. Sunroof blind not retracting \| Bentayga Series.

JSON: [/v1/bulletins/10245079](/v1/bulletins/10245079)

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