{"nhtsa_id":10206287,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-01-08","date":"2021-12-14","document_id":"2063725/2","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE; EQUIPMENT","mfr_system":null,"summary":"Bentayga Hybrid - HVAC compressor noise. Customer statement / workshop findings High frequency noise audible from inside the cabin and/or when standing at the front of the vehicle, the noise is mainly evident whilst operating in hot ambient temperatures The noise increases with compressor speed and interior fan demand Technical background Upon receipt of a customer complaint for excessive HVAC compressor noise, Refer to the video on the Bentley Hub referencing TPI 2063725/- If the noise is as shown within the video, the customer should be advised that this is normal and does not represent a failure or malfunction on the vehicle Ensure customers of Hybrid vehicles are aware of the following: - The HVAC compressor is isolated to the High voltage system and is not controlled by the engine or engine speed - In conditions of high ambient temperature, the operation of the compressor can be audible - This is a known characteristic of this compressor and does not signify a fault Any other noise or fault which is not as described should be reported via an open DISS query The operative should wait for a response from Product Support before conducting any further work","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10206287-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10206287-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10206287","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BENTLEY","model":"BENTAYGA HYBRID","year_from":2019,"year_to":2022,"match":"base","vehicle_ids":["2019_bentley_bentayga","2020_bentley_bentayga","2021_bentley_bentayga","2022_bentley_bentayga"]}],"as_of":"2026-10-19","note":"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.","attribution":[]}