# Service bulletin B640422

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: 10250374
- Published by NHTSA: 2024\-03\-02
- Manufacturer's number: B640422
- Manufacturer's date: 2024\-02\-16
- NHTSA component: ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

## NHTSA's summary

An interference noise \(groaning noise\) can be heard from within the heating and air\-conditioning unit in thecenter of the instrument panel. The groaning noise always occurs when either a ventilation flap, air stratification flap or the recirculated airflap moves to a different position. Due to the complex design of the heating and air\-conditioning unit, the kinematics causing it \(top or bottom,left or right\) may not be able to be precisely located. Depending on the vehicle model, the number of servomotors \(and the associated kinematics unit\) varies.Various models use either 2 or 3 servomotors.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10250374-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10250374-9999.pdf)

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

## Components

Electrical system, Glass, wipers and mirrors, Heating and air conditioning

## Vehicles listed

- 2022 to 2023 BMW 228I
- 2022 to 2023 BMW 230I
- 2023 BMW 240I
- 2023 BMW 3 SERIES
- 2023 BMW 3 SERIES
- 2023 BMW 3 SERIES
- 2023 BMW 3 SERIES
- 2020 BMW 330E
- 2021 to 2023 BMW 330E
- 2019 to 2023 BMW 330I
- 2019 BMW 340I
- 2020 BMW 340I
- 2023 BMW 340I
- 2023 BMW 4 SERIES
- 2020 to 2023 BMW 430I
- 2020 BMW 440I
- 2022 to 2023 BMW M3
- 2022 to 2023 BMW M340I
- 2021 to 2023 BMW M4
- 2023 BMW M4 GT4
- 2021 to 2023 BMW M440I
- 2017 to 2022 BMW X3
- 2020 to 2023 BMW X4
- 2019 to 2023 BMW Z4

## Recalls for the same vehicles and component

- [26V056000](/recalls/nhtsa/26V056000.md), 2026-01-30: ELECTRICAL SYSTEM:STARTER ASSEMBLY
- [2025499](/recalls/tc/2025499.md), 2025-09-23: Electrical
- [25V636000](/recalls/nhtsa/25V636000.md), 2025-09-23: ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY
- [24V608000](/recalls/nhtsa/24V608000.md), 2024-08-13: ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS/RECEPTACLES; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP
- [2024444](/recalls/tc/2024444.md), 2024-08-01: Electrical
- [23V584000](/recalls/nhtsa/23V584000.md), 2023-08-16: ELECTRICAL SYSTEM:SOFTWARE; SEAT BELTS
- [2023093](/recalls/tc/2023093.md), 2023-02-24: Electrical
- [23V118000](/recalls/nhtsa/23V118000.md), 2023-02-23: ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE
- [23V099000](/recalls/nhtsa/23V099000.md), 2023-02-17: ELECTRICAL SYSTEM:SOFTWARE; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS
- [22V267000](/recalls/nhtsa/22V267000.md), 2022-04-20: VISIBILITY:SUN/MOON ROOF ASSEMBLY

## Other bulletins for the same vehicles and component

- [B110426](/bulletins/11035500.md), 2026-08-03, Service bulletin: ENGINE; ELECTRICAL SYSTEM. The manual starting of electronic engine oil level measurement from inside the vehicle, usually afterperforming an engine oil service task, is inoperative or it may lock up at between a 15% to 30% completionrate.
- [B840226](/bulletins/11035408.md), 2026-07-31, Service campaign: ELECTRICAL SYSTEM. Once the Telematics Module \(TCB2\) enters sleep mode, a BMW Data Services trigger for Remote Services\(remote engine start, lock/unlock/climate conditioning\) will not be able to reactivate the TCB2. Due to this issue, Remote Services will not function in the vehicle when parked and locked.
- [B652025](/bulletins/11032744.md), 2026-05-18, Service bulletin: ELECTRICAL SYSTEM. After replacing the Multifunctional Display \(MFD\), the Central Information Display \(CID\) is black. The backlight of the CID is illuminated, and touch function does register an audible sound.
- [B120326](/bulletins/11030061.md), 2026-03-13, Emissions: ELECTRICAL SYSTEM. BMW AG is conducting Voluntary Emissions Recall \(effective March 11, 2026\) on certain Model Year 2023 \-2026 BMW vehicles that were produced between January 14, 2022, and September 16, 2025.
- [B840625](/bulletins/11024211.md), 2025-10-09, Service bulletin: ELECTRICAL SYSTEM. In some situations, an emergency call may be triggered in the vehicle without either the customer pressing the SOS Call button, or an airbag deployment event. In some cases, the customer may not even be inside the vehicle.
- [B840525](/bulletins/11022119.md), 2025-08-24, Service bulletin: ELECTRICAL SYSTEM. SITUATION After the telematics module \(TCB4\) has been replaced, the replacement part control unit is not accepted byISTA.
- [B630418](/bulletins/11020927.md), 2025-07-28, Service bulletin: VISIBILITY/WIPER. One or more of the LED daytime running lights are dim or discolored.
- [B120125](/bulletins/11019550.md), 2025-06-17, Emissions: ELECTRICAL SYSTEM. EMISSIONS RECALL 25E\-A03: PROGRAM CONTOL UNITS \(DME\)
- [B630222](/bulletins/11017571.md), 2025-05-02, Service bulletin: VISIBILITY/WIPER. Excessive condensation in one or both headlights.
- [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.

JSON: [/v1/bulletins/10250374](/v1/bulletins/10250374)

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