# Service bulletin 2046733/6

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: 10178186
- Published by NHTSA: 2020\-08\-08
- Manufacturer's number: 2046733/6
- Manufacturer's date: 2020\-07\-28
- NHTSA component: EQUIPMENT; STEERING; EQUIPMENT ADAPTIVE/MOBILITY

## NHTSA's summary

Steering rack noise during extended city drive cycle. Customer statement/workshop findings: Steering grinding noise after the vehicle is driven for extended periods in city conditions Technical background: Steering rack internal torque sensor is defective In order for this noise to be present, the steering must be in motion. The noise is only present after extended city driving. Verify that the customer complaint matches the sound file within the Bentley Hub Reference TPI Transaction number 2046733/\- In the event the customer complaint can be clearly assigned to the above video, please refer to the instructions within the Measure section of this TPI

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178186-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178186-9999.pdf)

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

## Components

Equipment and accessories, Steering

## Vehicles listed

- 2017 to 2018 BENTLEY BENTAYGA

## Other bulletins for the same vehicles and component

- [2082806/1](/bulletins/11037157.md), 2026-09-09, Service bulletin: STEERING. Steering Rack Requires Replacement \| Bentayga \| 17\-18MY
- [2056407/7](/bulletins/11025089.md), 2025-11-06, Service bulletin: STEERING; SUSPENSION. Running gear \- Noise identification. Condition Customer statement: Noise complaint from the suspension and/or steering Workshop findings: The noise can be reproduced and clearly assigned to the suspension system from either of the axles And/or The noise can be reproduced and clearly assigned to the steering system
- [2065197/4](/bulletins/11015383.md), 2025-03-08, Service bulletin: STEERING; SUSPENSION. Squeaking/creaking noises from the front axle and/or leaks at the lower ball joint/s.
- [2056407/6](/bulletins/11015368.md), 2025-03-08, Service bulletin: STRUCTURE:BODY; SUSPENSION; STEERING. Running gear \- Noise identification. Customer statement: Noise complaint from the suspension and/or steering.
- [2055540/5](/bulletins/11015363.md), 2025-03-07, Service bulletin: STEERING; STRUCTURE:BODY; POWER TRAIN. Rumble noise and/or floor pan/steering column vibration.
- [2069806/5](/bulletins/10252818.md), 2024-04-06, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. HVAC refrigerant leakage suspected or reports of a damp/musty smell within the cabin \- Diagnosis guidelines. Customer statement / workshop findings: HVAC not cooling / HVAC cooling less than expected / HVAC refrigerant leakage confirmed Or The customer reports a damp/musty smell within the cabin Note: For this scenario please see the pre requisites below \- Should no HVAC leak be evident and a damp/musty smell has been reported/identified the operative should first confirm that water is not leaking into the cabin please refer to all VIN applicable TPIs \- Should there be no water leaks evident, the operative should check the HVAC and body drains for blockages, in the event the drains are blocked the drains must be unblocked, once this has been completed the operative should confirm if the damp/musty smell is still evident.
- [2066236/4](/bulletins/10252291.md), 2024-04-06, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:ANTI\-THEFT DEVICES. Unintended sounding of the Alarm siren \- Following activation of the ignition or whilst the vehicle is left standing. Customer statement: Unintended sounding of the alarm siren following activation of the ignition Or Unintended sounding of the alarm siren whilst the vehicle is left standing. Workshop findings: \- B131DF5: alarm system siren supply voltage lower limit value less than \- B131D29: sirens / alarm horn for anti\-theft warning system Range/Performance \- B131D29: anti\-theft alarm system siren / alarm horn signal, not valid
- [2068946/6](/bulletins/10252115.md), 2024-04-06, Service bulletin: SUSPENSION; EQUIPMENT; ELECTRICAL SYSTEM. DTC P0B2500 logged within address 0021 \(Battery Energy Control Module 2\) \- Dynamic ride system warning visible. Customer statement: Bentley dynamic ride system fault is displayed within the Drivers Instrument Panel \(DIP\). Workshop findings: DTC P0B2500 \- Hybrid/EV Battery "A" Voltage low is stored within address 21\- Battery Energy Control Module 2.
- [2049193/2](/bulletins/10249860.md), 2024-02-07, Service bulletin: STRUCTURE; EQUIPMENT. Bentayga \- A Post Water Deflector \- Surface Contamination. Customer statement / workshop findings: Mottled appearance on A post water deflectors. Surface deposits on A post water deflectors cannot be removed by washing with car shampoo. Technical background: Surface deposits are caused by UV protection additives contained within the A post water deflector migrating to the surface. This migration process is intentionally designed to protect parts from brittleness and ageing, the mottled appearance may occur after a certain length of time and is also dependent on temperature and humidity. Deposits on the surface are normally removed by weathering during normal driving or when washing the vehicle.
- [2066852.4](/bulletins/10245071.md), 2023-11-08, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. Shaker Speaker \- Diagnostic Checks Customer Statement: \-Customer complains of poor quality music output from the shaker speaker due to a rattling noise/sound distortion

JSON: [/v1/bulletins/10178186](/v1/bulletins/10178186)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%202046733%2F6&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10178186&vehicle=Service%20bulletin%202046733%2F6)