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Service bulletins for the 2020 BMW 330i

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.

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

By type

By component

Bulletins, newest first
SIB6624192022-08-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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. Note: Opening, closing and starting via the BMW Digital Key or the Digital Key Card are not affected.
SIB6409212022-08-22. Service bulletin. EQUIPMENT; ELECTRICAL 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 (38 F to 60 F+; 3 to 15+ Celsius) without changing any climate control settings. A difference may be felt in cooling power compared from left to right. In some cases, the air conditioning may have stopped blowing cold air altogether. A rattling noise may also be heard coming from the electrical coolant condenser (EKMV).
SIB6405212022-08-22. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. A rattling/droning noise is heard in the vehicle interior when the air conditioning (AC) is activated. Vibrations are felt in the driver's footwell.
SIB5108222022-08-22. Service bulletin. STRUCTURE. Whistling noise is heard coming from the front bumper while driving at highway speeds.
SIB3602222022-08-22. Service bulletin. TIRES. Starting mid-May 2022, the QR code on the tite sidewalls of Pirelli tires has been omitted due to patent reasons.
SIB3601222022-07-18. Service bulletin. EXTERIOR LIGHTING; TIRES; EQUIPMENT. The customer finds an indication in themyBMWapp that the tires need service due to wear. Even afterreplacing the tires, the tire service indicator is still present in the myBMW app.
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.
SIB6608202022-07-05. Service bulletin. ELECTRICAL SYSTEM:ADAS. The functionality of the right rear SRR sensor could be reduced which would display the "Driving Assistance" Check Control Message.
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.
SIB6102222022-07-05. Service bulletin. ELECTRICAL 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 modules, such as faster ageing, shorter range, or possible operating failure.
SIB6409212022-06-21. Service bulletin. ELECTRICAL 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.
B3401222022-06-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. When driving off from a standstill, a delayed or sluggish throttle response may be noticed sporadically.
B1701212022-06-21. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. The quick disconnect coupling on the cylinder head coolant vent line could break at the cylinder head. This would lead to loss of coolant from the engine.
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.
B6405212022-05-31. Service bulletin. STRUCTURE. A rattling noise is heard in the vehicle interior when the air conditioning (AC) is activated.
B6202222022-05-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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).
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.
B3601222022-05-31. Service bulletin. WHEELS; EXTERIOR LIGHTING. 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.
B1701212022-05-31. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. The quick disconnect coupling on the cylinder head coolant vent line could break at the cylinder head. This would lead to loss of coolant from the engine.
B1210212022-05-31. Service bulletin. EXTERIOR 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.
B1105212022-05-31. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND 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.
B0107222022-05-31. Service bulletin. FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING. Component and Issue Specific Limited Emission Warranty Extension. This bulletin is notice of a limited emission warranty extension. This is NOT a notice of a Recall or Service Action. There is no immediate repair required unless the BMW vehicle is currently experiencing this problem. Customer Notification Letter Even though this is NOT a Recall, BMW NA is sending VIN-specific customer notification letters. The plastic fuel tank has two openings, one at the top right and the other at the top left. The top right opening (passenger's side, serviceable) provides a mounting point and repair access to the intake fuel pump/level sensor assembly. The top left opening (driver's side, non-serviceable) serves as an access point for the installation of the suction jet pump/level sensor assembly during the fuel tank manufacturing process. After these components are installed, the top left side opening is then permanently closed and sealed with the installation of a circular Coex biopolymer plastic cover plate which is welded into place. Over time, the left side opening plastic cover plate weld may become damaged. Should this occur, there is the possibility of fuel leakage. Additionally, your vehicle will store the corresponding fault codes that may also be generated, and the Malfunction Indicator Lamp (MIL) will illuminate.

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