Service bulletin B540521
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 | 10228433 |
| Published by NHTSA | 2023-01-03 |
| Manufacturer's number | B540521 |
| Manufacturer's date | 2022-11-01 |
| NHTSA component | VISIBILITY:SUN/MOON ROOF ASSEMBLY |
NHTSA's summary
The sunroof will not operate in either direction. There are NO faults stored related to the sunroof. If the vehicle has any faults stored related to the sunroof, this bulletin does not apply.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Glass, wipers and mirrors, Sunroof
| BMW 530E | 2018, 2019, 2020, 2021, 2022 |
|---|---|
| BMW 530I | 2017, 2018, 2019, 2020, 2021, 2022 |
| BMW 540D | 2018, 2019 |
| BMW 540D | 2020 |
| BMW 540I | 2017, 2018, 2019, 2020, 2021, 2022 |
| BMW 740E | 2017, 2018, 2019 |
| BMW 740I | 2017, 2018, 2019, 2020, 2021 |
| BMW 740I | 2022 |
| BMW 740LI | 2016 to 2017 |
| BMW 745E | 2020, 2021 |
| BMW 745E | 2022 |
| BMW 750I | 2018, 2019 |
| BMW 750LI | 2016 to 2019 |
| BMW 750LI | 2021 |
| BMW 750LI | 2022 |
| BMW ALPINA XB7 | 2021 to 2022 |
| BMW B7 ALPINA | 2018 to 2020 |
| BMW M5 | 2018, 2019, 2020, 2021, 2022 |
| BMW M550I | 2017 |
| BMW M550I | 2018, 2019, 2020, 2021, 2022 |
| BMW M760I | 2017, 2018, 2019, 2020, 2021 |
| BMW M760I | 2022 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| B540521 | 2023-09-25. Service bulletin. ?The sunroof will not operate in either direction. |
|---|---|
| B540121 | 2021-05-24. Service bulletin. SUNROOF REVERSES WHEN CLOSING: After the vehicle is left in the hot sun and/or high temperatures with the sunroof in the vented position, the sunroof may reverse (anti-trap activates) when closing. |
| B540319 | 2019-05-20. Service bulletin. GROANING NOISE FROM SUNROOF . A groaning noise is present from the area between the front and rear sunroof glass panels only with the sunroof completely closed. Venting the front sunroof glass causes the noise to stop. The front sunroof glass is rubbing against the rubber seal of the rear sunroof glass. |
| B540319 | 2019-05-20. Service bulletin. GROANING NOISE FROM SUNROOF . A groaning noise is present from the area between the front and rear sunroof glass panels only with the sunroof completely closed. Venting the front sunroof glass causes the noise to stop. The front sunroof glass is rubbing against the rubber seal of the rear sunroof glass. |
| B540718 | 2019-03-18. Service bulletin. PANORAMIC SUNROOF DOES NOT OPEN OR CLOSE. The panoramic sunroof will not open or close. The sunroof may only tilt with no other functions available. There are no faults stored for the panoramic sunroof. A software error in the Roof Function Center (FZD). |
| B540718 | 2019-02-25. Service bulletin. PANORAMIC SUNROOF DOES NOT OPEN OR CLOSE. The panoramic sunroof will not open or close. The sunroof may only tilt with no other functions available. There are no faults stored for the panoramic sunroof. A software error in the Roof Function Center (FZD). |
| B540117 | 2018-11-05. Service bulletin. ?GLASS ROOF NOT CLOSING . Glass roof will not close. At least one of the following fault codes is stored: 30215: Slide/tilt sunroof: invalid characteristic curve, no standardization exists 30295: Electric sliding headliner: invalid characteristic curve, no standardization exists 302A0: Electric sliding headliner: System not standardized 30220: Slide/tilt sunroof: System not standardized Roof function center software. |