Service bulletins for the 2020 BMW M340i
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.
251 on file from NHTSA, as of 2026-10-19.
By type
By component
| B840621 | 2022-01-24. Service bulletin. EQUIPMENT; COMMUNICATION:MANUFACTURER TELEMATICS; ELECTRICAL SYSTEM. The SIM card installed in the telematics control unit (ATM2) connects to different mobile providers' networks. However, due to a missing parameter, this does not work and can cause disruption in BMW ConnectedDrive services in areas with insufficient network coverage. |
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| B662419 | 2022-01-24. Service bulletin. ELECTRICAL SYSTEM; ENGINE; STEERING. Vehicle cannot be opened or closed using comfort access, engine start is not possible, and the vehicle may not start when placing the key against the steering column. |
| B652121 | 2022-01-24. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. SiriusXM satellite radio is not working and does not display a channel list. |
| B652021 | 2022-01-24. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. BMW AG has issued a Delivery Stop (effective October 25, 2021) on certain Model Year 2022 BMW vehicles that were produced after October 25, 2021. Due to supply chain limitations, certain vehicles were produced without a CID with touch function and without Reversing Assistant. |
| B612219 | 2022-01-24. Service bulletin. EQUIPMENT:ELECTRICAL; STRUCTURE:BODY:DOOR. The customer states that the vehicle locks itself when the last door was closed, even though the remote control/display key was inside the vehicle. |
| B121221 | 2021-12-27. Service bulletin. BACK OVER PREVENTION. ???Due to an unfavorable operating point primarily in the low-end torque range, the fuel vapor scavenging that takes place in that range may result in incorrect detection of a mixture that is too rich. As a result, an incorrect mixture adaptation value is stored. |
| B121021 | 2021-12-27. Service bulletin. ELECTRICAL SYSTEM; ENGINE. The customer complains that under moderate throttle application or on deceleration after throttle application, a Malfunction Indicator Lamp (MIL) is displayed in the instrument cluster. |
| B090121 | 2021-12-27. Service bulletin. EQUIPMENT. BMW offers a new special ISTA Installation made available for Roadside Assistance / Mobile Service technicians. |
| B001020 | 2021-12-27. Service bulletin. ELECTRICAL SYSTEM. BMW of North America (BMW NA) has made information available online to customers about software versions, including any changes to vehicle functionality that will result from each update. |
| B640321 | 2021-12-20. Service bulletin. EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. After replacing the microfilter during a previous service, the customer notices that the ventilation system airflow rate is noticeably less. |
| B611621 | 2021-12-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. The "energy management" Check control message (ID code 415) is falsely displayed when entering the vehicle. |
| B610615 | 2021-12-20. Service bulletin. EQUIPMENT. Rattling noises heard from vicinity of glove box. |
| B410321 | 2021-12-20. Service bulletin. WHEELS. In the affected vehicles, there is relative movement between the front side panel and the wheel arch cover while driving (depending on the driving profile). |
| B650919 | 2021-12-20. Service bulletin. ELECTRICAL SYSTEM. Customer states the following about their vehicle: active radio or music source is interrupted, the navigation is no longer available, a black screen is shown in the Control Display, the system works again after a short interruption. |
| B662419 | 2021-12-13. Service bulletin. STEERING. Vehicle cannot be opened or closed using comfort access, engine start is not possible, and the vehicle maynot start when placing the key against the steering column. |
| SIB340821 | 2021-12-13. Service bulletin. SERVICE BRAKES, HYDRAULIC. The yellow CCM, ID code 42, lights up when starting the vehicle. ID code 00042: Brake system. It is possible to continue driving. Additional notes: Avoid abrupt braking as far as possible. Drive at a moderate speed. Have it checked by your nearest Service Center. |
| B090321 | 2021-12-13. Service bulletin. EQUIPMENT:ELECTRICAL. In some rare cases a customer vehicle might be excluded from one or more Remote Software Upgrade (RSU) campaigns. This SIB gives an overview how to identify these vehicles and how to proceed in case of a customer complaint. |
| B090221 | 2021-12-13. Service bulletin. EQUIPMENT:ELECTRICAL. With the introduction of BMW Remote Software Upgrade, all Service Pack 18 vehicles and partial Service Pack 15 vehicles may receive new functionalities or modifications in their features with a new Software Update. |
| B610721 | 2021-11-08. Service bulletin. STEERING. Groaning, scraping, or squeaking noise coming from the steering wheel area in the interior of the vehicle,when turning the steering wheel. |
| B120821 | 2021-11-08. Service bulletin. ELECTRICAL SYSTEM. When charging the vehicle with an Occasional Use Charger (OUC) after previously using a Wallbox charger,the selected charging current might not be displayed correctly in the instrument cluster. |
| SIB 64 03 21 | 2021-10-25. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH; EQUIPMENT ADAPTIVE/MOBILITY. After replacing the microfilter during a previous service, the customer notices that the ventilation system airflow rate is noticeably less. This leads to perceived lower cooling power. The customer may also notice that external odors enter the vehicle. |
| SIB 62 03 21 | 2021-10-25. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. When the vehicle is operated in Sport Mode, the engine speed is no longer displayed in the BMW Head-Up Display (HUD). |
| SIB 61 09 21 | 2021-10-25. Service bulletin. EQUIPMENT:ELECTRICAL. Check control message (CCM-ID 49) "You can continue driving. Drivetrain". In addition, the following information is shown on the Central Information Display (CID): "You can continue to drive. No roadside assistance necessary. To avoid subsequent damage, arrange an appointment with your Service Partner". |
| SIB 61 08 21 | 2021-10-25. Service bulletin. EQUIPMENT. The cigarette lighter is difficult or impossible to pull it out. |
| SIB 61 04 21 | 2021-10-25. Service bulletin. EQUIPMENT:ELECTRICAL. The customer may complain of a check control message stating "Safe share detected" (CCM-ID 953). Check control message can be verified by checking key reader information or performing the Check control message history service function. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.