BMW bulletin B660325
BMW filed this with NHTSA as a service bulletin dated Jul 14, 2025, received Apr 3, 2025, about the structure — 3 documents under this number. It names 41 model years (2020–2025). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationA check control message is displayed, indicating that the parking assistance systems have limitedfunctionality due to errors detected within PDC sensors. The warning indicates parking assistance featureshave limited functionality while the errors continue to be detected. Following faults may be stored 8031BA Ultrasonic Sensor Rear Side Left Software Error 8031CO Ultrasonic Sensor Rear outer left Software Error 8031AE Ultrasonic Sensor Rear Outer Right Software Error 8031A8 Ultrasonic Sensor Rear Side Right Software Error 8031B4 Ultrasonic Sensor Rear Middle Right Software Error 8031C6 Ultrasonic Sensor Rear Middle Left Software Error 8031CD Ultrasonic Sensor Voltage Supply Sensors Back: Short Circuit 8031CC Ultrasonic Sensor Voltage Supply Front: Short Circuit 8031CA Ultrasonic Sensors Front Extraneous Noise
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B660325 | Service bulletin | Jul 14, 2025 | 11020916 | not yet checked |
| B660325 | Service bulletin | May 22, 2025 | 11018550 | not yet checked |
| B660325 | Service bulletin | Mar 26, 2025 | 11016446 | not yet checked |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2021 BMW IX.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Common questions
Source: NHTSA, 49 CFR 579.5Is BMW B660325 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the B660325 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does B660325 cover?
The manufacturer filed it against 41 model years: 2025 BMW 5 Series, 2024 BMW 5 Series, 2023 BMW 5 Series, 2022 BMW 5 Series, 2021 BMW 5 Series, 2020 BMW 5 Series and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.