# Service bulletin B650421

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: 11002861
- Published by NHTSA: 2024\-07\-02
- Manufacturer's number: B650421
- Manufacturer's date: 2024\-06\-04
- NHTSA component: STRUCTURE:BODY

## NHTSA's summary

A rattling/ droning noise is heard in the vehicle interior when the air conditioning \(AC\) is activated. Vibrationsare felt in the driver’s footwell.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11002861-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11002861-9999.pdf)

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

## Components

Body and frame

## Vehicles listed

- 2023 BMW 228I
- 2023 BMW 3 SERIES
- 2023 BMW 3 SERIES
- 2023 BMW 3 SERIES
- 2023 BMW 3 SERIES
- 2023 BMW 4 SERIES
- 2024 BMW X3
- 2024 BMW X4

## Recalls for the same vehicles and component

- [24V711000](/recalls/nhtsa/24V711000.md), 2024-09-25: STRUCTURE:BODY

## Other bulletins for the same vehicles and component

- [B641224](/bulletins/11032743.md), 2026-05-18, Service bulletin: STRUCTURE:BODY. 1. Use of aftermarket accessory hang\-on cellular phone holders and/or air fresheners can break the instrument panel air vent slats. Damage and/or issues caused by outside influences are not covered under the BMW limited warranties. Originally, the air vent slats were only repairable by replacing the entire front center dash vent assembly; which in some applications, also included the IHKA control module.
- [B061126](/bulletins/11028198.md), 2026-02-04, Other: STRUCTURE:BODY. Edge Trim Return
- [B065925](/bulletins/11025853.md), 2025-12-01, Other: STRUCTURE:BODY. Left Door Cover Return
- [B510925](/bulletins/11024711.md), 2025-11-03, Service bulletin: STRUCTURE:BODY. Oxidation/corrosion on the tailgate latch electrical connector and/or mechanical cable. This is caused by pressure washing the tailgate for a long period of time at close distance, resulting in water entering the vehicle through the gaps of the tailgate.
- [B540525](/bulletins/11024340.md), 2025-10-16, Service bulletin: STRUCTURE:BODY. A “popping” sound is heard coming from the Roof/B\-pillar area when driving over small driveway curbs.
- [B065325](/bulletins/11024234.md), 2025-10-10, Other: STRUCTURE:BODY. Front Bumper Trim Return
- [B410725](/bulletins/11022101.md), 2025-08-24, Service bulletin: STRUCTURE:BODY. While driving on a smooth and/or uneven road, a “cracking” sound is heard from the rear wheel arch area \(highlighted in orange\) on either the right or left side.
- [B513019](/bulletins/11017506.md), 2025-05-02, Service bulletin: STRUCTURE:BODY. A groaning noise is present from the door frame of any door, most commonly when driving over rough roadsor during body flex. This situation may be worse in vehicles which are regularly waxed in th e area of the door jamb.
- [B510925](/bulletins/11017278.md), 2025-04-28, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. Oxidation/corrosion on the tailgate latchelectrical connector and/or mechanical cable. This is caused by pressure washing thetailgate for a long period of time at closedistance, resulting in water entering thevehicle through the gaps of the tailgate.
- [B511223](/bulletins/11017084.md), 2025-04-17, Service bulletin: STRUCTURE:BODY. A vehicle listed above may arrive with a Check Control Message \(CCM\), and/or malfunction indicator lamp\(MIL\) illuminated. After carrying out the vehicle test, one or more of the stored faults indicate that the operation of the frontbottom active air flap is obstructed or blocked.

JSON: [/v1/bulletins/11002861](/v1/bulletins/11002861)

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