# Service bulletin 2046299/7

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: 10183620
- Published by NHTSA: 2020\-12\-03
- Manufacturer's number: 2046299/7
- Manufacturer's date: 2020\-11\-09
- NHTSA component: SERVICE BRAKES; EQUIPMENT

## NHTSA's summary

Bentayga \- 1.2 \- 1.4KHz rear brake squeal. Customer statement / workshop findings Squeal from the rear of the vehicle at low speed while braking. Technical background: While braking at low speed, a vibration of 1.2 to 1.4 KHz can be produced by the friction between the rear brake pad and disc resulting in a complaint of brake noise from the customer.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183620-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183620-9999.pdf)

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

## Components

Brakes, Equipment and accessories

## Vehicles listed

- 2017 to 2018 BENTLEY BENTAYGA
- 2020 to 2021 BENTLEY BENTAYGA

## Recalls for the same vehicles and component

- [21V975000](/recalls/nhtsa/21V975000.md), 2021-12-15: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; AIR BAGS:FRONTAL
- [2021518](/recalls/tc/2021518.md), 2021-08-18: Brakes

## Other bulletins for the same vehicles and component

- [2075034/4](/bulletins/11033397.md), 2026-06-04, Service bulletin: ELECTRICAL SYSTEM; SERVICE BRAKES; STRUCTURE:BODY. EPB Warning light in DIP \- Front door/s power latch system intermittent \- DTC U112300 within Address 03 and Address 46. Customer statement / workshop findings: One or a combination of the following is evident within the DIP \(Figure 1\) • Electronic parking brake warning And/or • Drivers door power latch intermittent operation warning
- [2052785/10](/bulletins/11024822.md), 2025-11-04, Service bulletin: SERVICE BRAKES. Brake noise identification
- [2075034/3](/bulletins/11020982.md), 2025-07-30, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM; STRUCTURE:BODY; BACK OVER PREVENTION: WARNINGS. EPB Warning light in DIP \- Front door/s power latch system intermittent \- DTC U112300 within Address 03 and Address 46. Condition: One or a combination of the following is evident within the DIP • Electronic parking brake warning And/or • Drivers door power latch intermittent operation warning
- [2060726/4](/bulletins/11015351.md), 2025-03-07, Service bulletin: WHEELS; SERVICE BRAKES. Bentayga \- Winter Wheel and Tyre For CSiC Braking Systems. Technical Background: When opting to use Winter Tyres on vehicles specified with Ceramic brake rotors, the only permissible wheel rim option is 21 Inch 7 Twin spoke –36A 601 025Q.
- [2052785/9](/bulletins/11015348.md), 2025-03-07, Service bulletin: SERVICE BRAKES. Brake noise identification. Technical Background: Brake noises can be attributed to many causes, the most common causes are as follows: • Brake discs or pads are close to their wear limit • New brake pads and/or discs have not been properly bedded in after installation • Aftermarket pads or discs are installed • There is debris such as small stones, grit, road salt or sand between the brake disc and pad • Discs are covered in rust. Rust can form when the vehicle has been stationary for long periods of time
- [2071730/4](/bulletins/11012453.md), 2025-01-07, Service bulletin: SERVICE BRAKES. Bentayga rear brake noise/squeal \- Repair method depending on the brake noise frequency \(Iron brakes only\).
- [2075034/2](/bulletins/11009568.md), 2024-11-01, Service bulletin: BACK OVER PREVENTION: WARNINGS; STRUCTURE:BODY; ELECTRICAL SYSTEM; SERVICE BRAKES; BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING. EPB Warning light in DIP \- Front door/s power latch system intermittent \- DTC U112300 within Address 03 and Address 46. Customer statement / workshop findings: One or a combination of the following is evident within the DIP • Electronic parking brake warning And/or • Drivers door power latch intermittent operation warning
- [2071730/3](/bulletins/11006105.md), 2024-08-07, Service bulletin: SERVICE BRAKES. Bentayga rear brake noise/squeal \- Repair method depending on the brake noise frequency \(Iron brakes only\). Scenario 1 Vibration of 1.2 to 1.4 KHz is produced from the rear brakes whilst braking at low speed Whilst braking at low speed, a vibration of 1.2 to 1.4 KHz or 5 KHz can be produced from friction between the rear brake pad and disc resulting in rear brake noise/squeal Scenario 2 Vibration of 3.4 KHz is produced from the rear brakes While braking at low speed a vibration of 3.4 KHz can be produced during brake application at low speed resulting in rear brake noise/squeal Scenario 3 Vibration of 5 KHz is produced from the rear brakes whilst braking at low speed Whilst braking at low speed, a vibration of 5 KHz can be produced from friction between the rear brake pad and disc resulting in rear brake noise/squeal.
- [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

JSON: [/v1/bulletins/10183620](/v1/bulletins/10183620)

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