Service bulletins for the 2020 BMW Z4
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.
165 on file from NHTSA, as of 2026-10-19.
By type
By component
| B652021 | 2023-03-20. Service bulletin. EQUIPMENT; 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 and without Reversing Assistant. |
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| B650422 | 2023-03-20. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Due to component-related supply issues, the central information displays (CID) in some of the Model Year 2022 vehicles listed above were produced without the integrated touch screen function. |
| B610223 | 2023-03-20. Service bulletin. EQUIPMENT; VISIBILITY. Check control message (CCM) 183 Windscreen wiper malfunction is displayed. |
| B841422 | 2023-01-30. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Customer is shown an incorrect GPS location in the vehicle (i.e., Nav Map, coordinates). |
| B240222 | 2023-01-30. Service bulletin. STRUCTURE. A cracking, metallic noise from under the center of the vehicle. |
| B651922 | 2022-12-12. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. The customer complains that the radio stations change by themselves. |
| B611222 | 2022-12-12. Service bulletin. VISIBILITY. After opening the vehicle with the radio remote control and changing the profile, the exterior mirror settings are lost. |
| B662719 | 2022-10-31. Service bulletin. LANE DEPARTURE. The Lane Change Warning (LCW) yellow triangle symbol on either one, or both the exterior side view mirrors does not illuminate to alert the driver when it should. |
| B662419 | 2022-10-31. Service bulletin. EQUIPMENT:ELECTRICAL. 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. |
| B640422 | 2022-10-31. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in the center of the instrument panel. |
| SIB650922 | 2022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL. The sound output intermittently drops out entirely. This can be reproduced with all audio sources as well as telephone and voice output. |
| SIB090121 | 2022-07-18. 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. |
| SIB651312 | 2022-07-05. 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. |
| SIB640222 | 2022-07-05. 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. |
| SIB610722 | 2022-07-05. Service bulletin. EQUIPMENT:ELECTRICAL. Check Control Message (CCM) displays "Vehicle key missing" after engine start. |
| B340122 | 2022-06-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. When driving off from a standstill, a delayed or sluggish throttle response may be noticed sporadically. |
| B090321 | 2022-06-21. 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. |
| B610722 | 2022-05-31. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Check Control message (CCM) displays "Vehicle key missing" after engine start. |
| B651221 | 2022-05-31. Service bulletin. ELECTRICAL 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. |
| B661519 | 2022-05-16. 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. |
| B840917 | 2022-01-24. 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). |
| 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. |
| 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.