2021 BMW M340I Technical Service Bulletins

183 technical service bulletins (TSBs) are on record for the 2021 BMW M340I. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10214992May 1, 2022Electrical system. The functionality of the right rear SRR sensor could be reduced which would display the "Driving Assistance" Check Control Message.
• 10214990May 1, 2022Electrical system. The Headunit High (HU-H), also called NBT, began replacing the Car Information Computer (CIC) on certain MY2013 vehicles with option 609 (as of 7/2012 production). This uses map North America NEXT. The Headunit High 2 (HU-H2), also called NBT-EVO, superseded the NBT HU and was introduced in 3/2014. This uses map North America EVO. The Headunit High 4 (HU-H4, also called MGU21) superseded the MGU starting with…
• 10214989May 1, 2022Engine cooling. Mist formation on the windshield inside surface may occur at departure or after MSA (automaticstart/stop). Acoustic abnormality in the area of the recirculated air flap (recirculation flap closing and opening severaltimes). The above may occur individually or in combination.
• 10214984May 1, 2022Equipment. Check Control Message (CCM) displays "Vehicle key missing" after engine start.
• 10214983May 1, 2022Electrical system. BMW AG is conducting a Voluntary Service Action on certain Model Year 2019-2020 BMW Plug-In HybridElectric (PHEV) vehicles that were produced between March 25, 2019, and October 17, 2020. Analyses of transmitted teleservice data indicate abnormalities in the "balancing" of the cells within one or more of the high-voltage battery cell modules. This could possibly cause a loss of performance of the corresponding…
• 10214265Apr 1, 2022Electrical system. On these Plug-in Hybrid Electric Vehicles (PHEV), the air conditioning cycles from cold to warm air while driving or while at a standstill. The vent outlet temperatures vary by 25 degrees Fahrenheit or more (38F to 60F +; 3 to 15 + Celsius) without changing any climate control settings.
• 10212798Apr 1, 2022Body and structure. A rattling noise is heard in the vehicle interior when the air conditioning (AC) is activated.
• 10212797Apr 1, 2022Electrical system. Sport mode is not displayed correctly in the instrument cluster. Instead of a red background in sport mode, the background is displayed in blue (like in Eco Pro mode). Software in the instrument cluster (Kombi).
• 10212795Apr 1, 2022Electrical system. Check Control message (CCM) displays "Vehicle key missing" after engine start.
• 10212793Apr 1, 2022Equipment. 48 V battery may become totally discharged, and possible replacement needed.
• 10212790Apr 1, 2022Exterior lighting, Wheels. The customer finds an indication in the myBMWâ? app that the tires need service due to wear. Even after replacing the tires, the tire service indicator is still present in the myBMW app.
• 10212786Apr 1, 2022Exterior lighting. 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.
• 10212784Apr 1, 2022Engine cooling, Fuel system. The belt pulley on the mechanical coolant pump may fracture allowing the engine drive belt to come off the coolant pump and alternator.
• 10211855Mar 1, 2022Wheels, Tires, Brakes. After replacing tires and successfully programming the Tire Pressure Monitoring System (TPMS) using the RDC tool to transfer the QR code information on the sidewall, the "back-end" support systems need time to update the new tire information.
• 10211810Mar 1, 2022Electrical system, Equipment, Tires. The customer finds an indication in the â??myBMWâ? app that the tires need service due to wear. Even after replacing the tires, the tire service indicator is still present in the myBMW app.
• 10211809Mar 1, 2022Equipment, Lane departure, Steering. The steering intervention for Lane Departure Warning (LDW) is too strong (severe), which can create an uncomfortable feeling for the driver. Background: Steering intervention helps keep the vehicle in the lane if the system detects that a lane marking has been crossed. The steering intervention can be noticed on the steering wheel and can be manually overridden at any time.
• 10214260Feb 1, 2022Transmission and drivetrain, Engine. When driving off from a standstill, a delayed or sluggish throttle response may be noticed sporadically.
• 10214259Feb 1, 2022Steering. Cracking noises heard from the area of the front axle when rotating the steering while stationary or at low speed.
• 10214254Feb 1, 2022Back-over prevention (rear camera). 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.
• 10212528Feb 1, 2022Electrical system. BMW AG has issued a Delivery Stop (effective June 9, 2021) on certain Model Year 2021 BMW vehicles that were produced between May 7, 2021 and May 21, 2021. The Receiver Audio Module (RAM) will need to be added to the affected vehicles.
• 10212523Feb 1, 2022Equipment. BMW AG is conducting a Voluntary Service Action on certain Model Year 2019-2020 BMW Plug-In Hybrid-Electric (PHEV) vehicles that were produced between March 25, 2019, and October 17, 2020.
• 10208180Jan 1, 2022Equipment. After replacing and encoding the HOD electronics (Hands-on Detection), an incorrect parameter was transferred to the HOD electronics due to a coding error.
• 10208176Jan 1, 2022Fuel system, Engine cooling. The belt pulley on the mechanical coolant pump may fracture allowing the engine drive belt to come off the coolant pump and alternator.
• 10206693Dec 1, 2021Equipment, Electrical system. While using the wireless charger, one or both of the following may occur: 1) The BMW display key or mobile phone becomes hot to the touch. 2) The device switches off due to over temperature (built-in device protection).
• 10206692Dec 1, 2021Electrical system, Equipment, Other or unknown. 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.
• 10206690Dec 1, 2021Engine, Electrical system, 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.
• 10206688Dec 1, 2021Equipment. SiriusXM satellite radio is not working and does not display a channel list.
• 10206687Dec 1, 2021Equipment, Electrical system. 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.
• 10206686Dec 1, 2021Body and structure, Equipment. 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.
• 10205615Nov 1, 2021Back-over prevention (rear camera). ???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.
• 10205613Nov 1, 2021Engine, Electrical system. 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.
• 10205612Nov 1, 2021Equipment. BMW offers a new special ISTA Installation made available for Roadside Assistance / Mobile Service technicians.
• 10205600Nov 1, 2021Electrical 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.
• 10205096Nov 1, 2021Visibility (wipers, defrost, mirrors), Equipment. After replacing the microfilter during a previous service, the customer notices that the ventilation system airflow rate is noticeably less.
• 10205095Nov 1, 2021Electrical system. The "energy management" Check control message (ID code 415) is falsely displayed when entering the vehicle.
• 10205092Nov 1, 2021Equipment. Rattling noises heard from vicinity of glove box.
• 10205087Nov 1, 2021Wheels. 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).
• 10205070Nov 1, 2021Electrical 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.
• 10204533Oct 1, 2021Equipment. 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.
• 10204532Oct 1, 2021Equipment. 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.
• 10204661Sep 1, 2021Steering. 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.
• 10203340Sep 1, 2021Steering. Groaning, scraping, or squeaking noise coming from the steering wheel area in the interior of the vehicle,when turning the steering wheel.
• 10203333Sep 1, 2021Electrical 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.
• 10204626Jul 1, 2021Brakes. 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.
• 10202475Jul 1, 2021Equipment, Electrical system. 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.
• 10202474Jul 1, 2021Electrical system, Engine cooling. When the vehicle is operated in Sport Mode, the engine speed is no longer displayed in the BMW Head-Up Display (HUD).
• 10202471Jul 1, 2021Equipment. 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".
• 10202470Jul 1, 2021Equipment. The cigarette lighter is difficult or impossible to pull it out.
• 10202469Jul 1, 2021Equipment. 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.
• 10202468Jul 1, 2021Electrical system. 48 V battery may become totally discharged, and possible replacement needed if: a) The vehicle has been charged using a 12 V charger with the hood closed during a long stationary period, the. For example, the showroom or storage. b) Vehicles stored for an extended period connected to a low output solar or trickle charger. c) Vehicles stored for an extended period with no charger connected and not properly…

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