Service bulletins for the 2020 Bentley Mulsanne
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.
115 on file from NHTSA, as of 2026-10-19.
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By component
By trouble code
Only bulletins with component: Glass, wipers and mirrors are shown. Show all
| 2069806/5 | 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. |
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| 2050542.7 | 2023-11-06. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING; VISIBILITY. Service info: body/equipment: front exterior lighting steamed up/leaks Customer Statement: -1. The lenses of the headlights (illustration 1a) /front fog lamps (illustration 1b) are steamed up/damp from the inside with minor drips. 2. Water is in the headlight (illustration 2a) / front fog lamp (illustration 2b), big drips. |
| 2069806/4 | 2023-10-06. Service bulletin. EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; STRUCTURE. HVAC refrigerant leakage suspected or reports of a damp/musty smell within the cabin - Diagnosis guidelines. Condition HVAC not cooling / HVAC cooling less than expected / HVAC refrigerant leakage confirmed Or The customer reports a damp/musty smell within the cabin. - 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 particularly TPI 2062622/- - 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. |
| 2069806/3 | 2023-09-07. 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 particularly TPI 2062622/- - 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. |
| 2069806/2 | 2023-09-07. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY; ELECTRICAL 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 particularly TPI 2062622/- - 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. In the event that HVAC cleaning products are required, these MUST be sourced locally. Before using the cleaner the operative must inform the customer of the product which will be used, a neutral fragrance cleaner should be used as the customer may not like the smell of the cleaner should a fragranced product be used Please ensure all supporting information is included within the DISS query when requesting permission to clean the HVAC system including clear photographs and/or videos showing the reported issue, should the required information not be supplied the warranty claim could be cancelled. |
| 2069806.1 | 2023-05-05. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. HVAC Refrigerent Leakage - Diagnosis Guidelines Customer Statement: -HVAC not cooling or HVAC cooling less than expected |
| 2067489/1 | 2022-10-07. Service bulletin. STRUCTURE; VISIBILITY. Window side glass - Identification - Standard (STD) or Privacy (PRV) Customer Statement: - Incorrect side glass fitted - Standard (STD) not Privacy (PRV) or visa versa and/or Defects are evident within the glass Technical Background: -The instructions within the Measure section MUST only be followed if the glass is to be replaced |
| 2057841/3 | 2021-10-06. Service bulletin. VISIBILITY; STRUCTURE. Windscreen replacement criteria whilst under manufacturers warranty Customer statement / workshop findings: Windscreen cracked/damaged Technical background: Please refer to the instructions within the Measure section of this TPI in the event that a windscreen is cracked/damaged NOTE: The instructions MUST be followed to help the retailer clarify if the windscreen should be replaced under manufacturers warranty (Stress crack) or Customer pay/insurance (external influence damage) |
| 2057841/1 | 2020-01-09. Service bulletin. VISIBILITY. Customer statement / workshop findings: Windscreen cracked/damaged Technical background: Please refer to the instructions within the Measure section of this TPI in the event that a windscreen is cracked/damaged NOTE: The instructions MUST be followed to help the retailer clarify if the windscreen should be replaced under manufacturers warranty (Stress crack) or Customer pay/insurance (external influence damage) Measure: Identification In the event the windscreen is identified as cracked/damaged it is imperative the inspector of the cracked/damaged screen can determine if the crack was caused by external influences (stone chips) OR the screen is cracked/damaged due to a stress crack |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.