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Service bulletins for the 2020 BMW 840i

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.

176 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
SIB0901212022-07-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ELECTRICAL SYSTEM:SOFTWARE. BMW offers a new special ISTA Installation made available for Roadside Assistance / Mobile Service technicians. The new ISTA Version is also able to be used in case of a Remote Software Upgrade (RSU) programming failure to get the customer car reprogrammed on site. In case of a Remote Software Upgrade failure, the engine start is prevented for safety reasons until the vehicle is programmed correctly. Most of the errors occur when only one control unit fails to program correctly.
SIB0114212022-07-18. Service bulletin. WHEELS; TIRES; EQUIPMENT. BMW of North America, LLC (BMW NA) is administrating a Special Tire-Specific Support Program for irregular uneven inner shoulder tire wear for the above 8 Series model vehicles which are operated with the factory installed original equipment optional 20-inch wheels with Michelin Pilot Sport 3 (PS3 RFT) tires (shown) as described in this bulletin for the first 4 years (48 months) without a mileage limit, starting from the vehicle's original in-service date. This tire-specific program is subject to the same vehicle eligibility requirements, limitations, and exclusion criteria that applies to repair claim submissions under the standard BMW coverage and programs. Checking and adjusting the vehicle's wheel alignment and/or tire replacements for any other reason are also excluded from this Special Tire-Specific Support Program.
SIB6513122022-07-05. Service bulletin. ELECTRICAL 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 The Headunit High 2 (HU-H2), also called NBT-EVO, superseded the NBT HU and was introduced in 3/2014.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 The Headunit High 4 (HU-H4, also called MGU21) superseded the MGU starting with certain MY2021 vehicles with option code 6U3 Live Cockpit Professional. This uses map North America JOY. The ENTRY Media/Navigation (HU-B) is the low line business version of the navigation system and was introduced in 3/2014. This uses map North America ROUTE. The ENTRY NAV EVO (HU-B2) replaced Entry Media/Navigation as the low-line business version and was introduced in certain MY2018 vehicles. This uses map North America WAY.
SIB6402222022-07-05. Service bulletin. ENGINE AND ENGINE 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.
SIB6107222022-07-05. Service bulletin. EQUIPMENT:ELECTRICAL. Check Control Message (CCM) displays "Vehicle key missing" after engine start.
B0903212022-06-21. Service bulletin. BACK OVER PREVENTION:SOFTWARE. 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.
B6107222022-05-31. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Check Control message (CCM) displays "Vehicle key missing" after engine start.
B6101212022-05-31. Service bulletin. EQUIPMENT:ELECTRICAL. 48 V battery may become totally discharged, and possible replacement needed.
B3301202022-05-31. Service bulletin. SERVICE BRAKES. There is a shudder or jerking feeling coming from the rear of the vehicle at low speeds and low engine loads while turning. Incorrect actuating pressure in the M-differential clutch plates.
B1106212022-05-31. Service bulletin. EQUIPMENT. Information updated about engine oil filter cap drain plug. When performing an engine oil service on vehicles equipped with a N63M, N63B or S63M engines; the ETK states to use "Set oil filter element" P/N 11 42 5 A33 C42 or P/N 11 42 5 A33 C43. The part numbers are not available at the moment.
B5401222022-05-16. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. When locking the vehicle using the remote, the rear roof sunblind closes. It will re-open when unlocking the vehicle.
B6615192022-05-16. Service bulletin. EQUIPMENT; 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.
B8409172022-01-24. Service bulletin. EQUIPMENT; 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).
B8406212022-01-24. 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.
B6624192022-01-24. 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.
B6521212022-01-24. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. SiriusXM satellite radio is not working and does not display a channel list.
B6122192022-01-24. 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.
B3204202021-12-27. Service bulletin. BACK OVER PREVENTION. A groaning type noise is heard during the height adjustment.
B0901212021-12-27. Service bulletin. EQUIPMENT. BMW offers a new special ISTA Installation made available for Roadside Assistance / Mobile Service technicians.
B0114212021-12-27. Service bulletin. TIRES. BMW of North America, LLC (BMW NA) is administering a Special Tire-specific Support Program for irregular uneven inner shoulder tire wear.
B0010202021-12-27. 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.
B6116212021-12-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. The "energy management" Check control message (ID code 415) is falsely displayed when entering the vehicle.
B6509192021-12-20. 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.
B6624192021-12-13. 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.
B6408212021-12-13. Service bulletin. ELECTRICAL SYSTEM. The air conditioning cycles from cold to warm air while driving or while at a stand still. The vent outlet temperatures vary by 25 degrees Fahrenheit or more (38F to 60F +) without changing any climate control settings. In some cases the air conditioning may have stopped blowing cold air altogether.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.