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Service bulletins for the 2011 BMW 328i

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.

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

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Bulletins, newest first
B6526162018-11-05. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. "USB DEVICE IS NOT DETECTED BY CHAMP2 HEAD UNIT. Media connected to the USB connector is not recognized by the audio system. Playback of files from the media is not possible. Message displayed on the audio system display: ""Title cannot be reproduced"" ""Is being read"" (but never plays back any audio) CAUSE Media with data files stored in more than 32 directories or 32 subdirectories within a directory. Media with a large number of files. Media exceeds total storage capacity of 32 GB."
B6525162018-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. USB CABLE: BATTERY DISCHARGE/AUDIO FAILURE/RADIO RECEPTION. No sound from the radio, telephone, gong signal and or PDC. Poor radio reception and failure of the telematics systems. Possible Check Control system message: o Battery discharge when engine off. o Caution, no acoustic warning signals. Non BMW approved (third-party supplier) USB cable plugged into the USB port.
B0703142018-11-05. Service bulletin. ELECTRICAL SYSTEM. Diagnosing Stored Fault Codes to Help Avoid Repeat Repair Visits This Service Information bulletin supersedes SI B07 03 14 dated October 2015.. Fault codes stored in vehicles being serviced are not being diagnosed, leading to repeat repair visits (source- Analysis of FASTA data and repeat repair visit reports). INFORMATION Where diagnosis (vehicle or short test) with ISTA has already started, it is important to diagnose the fault code(s) listed below (when they are stored in the vehicle) to find their root cause during the current workshop visit. This will help lead to a reduction in workshop repeat repair visits and higher customer satisfaction.
B8402142018-11-05. Service bulletin. EQUIPMENT. ConnectedDrive/BMW Assist System Diagnosis Information This Service Information bulletin replaces SI B84 02 14 dated July 2014 What's New: Model - Removed models which no longer support BMW Assist functionality and added new models. Procedure - Add step requesting print out of ConnectedDrive Service Cockpit page Information - Add SI for ConnectedDrive Service Cockpit; updated the hyperlinks and email address for CD support team; deleted scenario for old CDMA unit which are no longer supported. ConnectedDrive/BMW Assist features are partially or completely inoperative. This Service Information bulletin is being published because vehicles are down for an extended period of time when researching system failures with ConnectedDrive or BMW Assist. This Service Information bulletin will assist you both in identifying the issue and providing technical support. CAUSE Not enough information is available for BMW NA engineers to assist the technician in diagnosing the root cause.
B8408162018-11-05. Service bulletin. ELECTRICAL SYSTEM. The underlying 2G technology for the GSM (Global System Mobile communication) COMBOX will no longer be supported by the cellular network providers after December 31, 2016. This COMBOX and the BMW Assist services that use its functionality will therefore no longer function after that date. The BMW Assist functionalities that are affected includes the following: SOS/E-Call including Automatic crash notification Concierge Service Remote Service Teleservices The vehicle's exisiting Bluetooth(r) wireless functionality is NOT affected.
B8403162018-11-05. Service bulletin. ELECTRICAL SYSTEM. SERVICE ACTION: GSM COMBOX DEACTIVATION / DISCONTINUATION WITH 4 YEAR ASSIST SERVICE. What's New: ? Model: Option code removed to prevent confusion about affected vehicles ? Situation: Information added about Bluetooth functionality that is not affect by this Service Action ? Correction: Information added about lease returns, loaner, CPO and used vehicles that are not eligible for the 3 customer options ? Information: Removed scenario regarding new/unsold Z4s & X1s ? Procedure: Added info about COMBOX retrofit that it does not affect Bluetooth functionality ? Warranty: Added info that the correct flat rate labor operation that corresponds to the option the customer selected is claimed and removed information about Z4s & X1s . The underlying 2G technology for the GSM (Global System Mobile communication) COMBOX will no longer be supported by the cellular network providers after December 31, 2016. This COMBOX and the BMW Assist services that use its functionality will therefore no longer function after that date. The BMW Assist functionalities that are affected includes the following: SOS/E-Call including Automatic crash notification Concierge Service Remote Service Teleservices The vehicle's exisiting Bluetooth(r) wireless functionality is NOT affected.
B8403112018-11-05. Service bulletin. EQUIPMENT. "?Telematics Device Spares Replacement Part Activation via DCSnet for BMW Assist What's New: ? Model: All models added along with 6AC option code ? Situation: All information added ? Information: Deleted CDMA related information and added activation of Wi-Fi control unit ? Procedure: Added "Note" regarding ConnectedDrive support hotline information . A replacement telematics control unit must only be activated for vehicles with an active BMW Assist subscription. Note: 2G CDMA and 2G GSM telematics control units cannot be activated because they are no longer supported and the supporting network(s) have been decommissioned. INFORMATION The following changes have taken place: All Telematics control unit replacements must be activated by Part managers via the DCSnet application. New steps included in the procedure for activating Telematics control unit replacements for vehicles equipped with Wi-Fi Hotspot (6WD)."
B1303152018-11-05. Service bulletin. FUEL SYSTEM, GASOLINE. ?N20, N26, N55, N63TU, S63TU and S55 Engines: Bosch Injector ETK Part Number Error What's New: ? Identifying the injector type using the ISTA test plan ? Determining the injector part number using the new the parts table. The current version of the ETK incorporates multiple part number errors for the Bosch type injectors. Ordering the injectors by VIN number or manual identification in ETK may result in an incorrect part number.
B1303152018-11-05. Service bulletin. ENGINE AND ENGINE COOLING. N20, N26, N55, N63TU, S63TU and S55 Engines: Bosch Injector ETK Part Number Error What's New: ? Procedure change: indentifying injector type using an ISTA test plan. . The current version of the ETK incorporates multiple part number errors for the Bosch type injectors. Ordering the injectors by VIN number or manual identification in ETK may result in an incorrect part number.
B1803102018-11-05. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. "? NO REGENERATION OF THE DIESEL PARTICULATE FILTER (DPF) This Service Information bulletin supersedes SI B18 03 10 dated November 2010. . The Service Engine Soon lamp is illuminated. The following fault codes may be stored in the DDE: N47T/N57T engine 245700 - Particle filter system: particulate filter highly loaded (Exhaust backpressure high) 245800 - particle filter system - filter is heavily contaminated. (exhaust backpressure is above maximum) M57Y engine 480A Particle filter system - filter is heavily contaminated. (exhaust backpressure is too high) 481A Particle filter system - filter is heavily contaminated. (exhaust backpressure is above maximum) CAUSE 1. Faults with the exhaust system that affect the monitoring of the DPF by the DDE 2. Unfavorable recent driving profile INFORMATIOM During normal driving, there is a continuous regeneration of the diesel particulate filter that takes place at exhaust-gas temperatures between 280 and 350°C (slower oxidation process). The soot particles can only be burned off when the required exhaust-gas temperature has been reached. Under certain driving conditions (i.e., prolonged short trips or an exhaust system which never reaches soot burn-off temperatures), the DPF can become restricted. The DDE will initiate periodic regeneration automatically, at the latest after 600 miles. In vehicles making many short distance journeys, periodic regeneration takes place after only 250-500 miles. The Digital Diesel Electronics control unit evaluates the time for periodic regeneration from the following values: average distance driven average driving speed temperature in the diesel particulate filter values from the exhaust pressure sensor The DDE initiates the regeneration process by decreasing incoming air by the throttle valve, and one or two post injections are executed. This heats the exhaust-gas temperature to approx. 600° C . When the exhaust temp reaches this point: The soot is burned off with the residual oxygen. The
B1801172018-11-05. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE. "? DIESEL PARTICULATE FILTER (DPF) CLEANING . The following performance issues may be noticed by the customer: CC-Message ""Drive faulty"" Engine jerking or a lack of power over the whole engine speed range Malfunction indicator lamp (MIL) is illuminated The following fault codes may be stored in the DDE: N47T/N57T engine Main Faults: 245700 - Particle filter system: particulate filter highly loaded (Exhaust backpressure high) 258300 - Exhaust backpressure sensor, Signal: Signal too high Secondary Faults: 244C00 - Charging pressure control, control deviation: charging pressure too low/positive deviation 25DA00 - Exhaust gas difference pressure sensor particle filter, Signal: short circuit to plus pole M57Y engine Main Faults: 480A particle filter system 481A particle filter system Secondary Faults: 4530 charging pressure control, control deviation 429A charging pressure control low pressure stage, control deviation Clogged DPF."
B8402142018-10-09. Service bulletin. EQUIPMENT. CONNECTEDDRIVE/BMW ASSIST SYSTEM DIAGNOSIS INFORMATION: ConnectedDrive/BMW Assist features are partially or completely inoperative.
B6507092018-10-09. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION SYSTEM: REPORTING MISSING OR INCORRECT ROAD MAP DATA: The route guidance is inaccurate and therefore irritating to the customer; or it is not possible to locate certain addresses, for instance:
B6507092018-08-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION SYSTEM: REPORTING MISSING OR INCORRECT ROAD MAP DATA: The route guidance is inaccurate and therefore irritating to the customer; or it is not possible to locate certain addresses, for instance:
B8403142018-07-16. Service bulletin. EQUIPMENT:ELECTRICAL. Bluetooth Connection Failures: There are various connectivity failures with the following devices: Apple iPhones: Samsung S6 and the S6 Edge.
B8402142018-05-14. Service bulletin. ELECTRICAL SYSTEM. ConnectedDrive/BMW Assist System Diagnosis Information
B0110142018-04-23. Service bulletin. ENGINE. ENGINE CAMSHAFT (VANOS) ADJUSTMENT UNITS: BMW of North America, LLC (ÒBMW NAÓ) is extending the limited warranty for the Camshaft (VANOS) Adjustment Units on certain model BMW vehicles equipped with the non-turbocharged 6-cylinder engine
SIB-63-11-142015-06-10. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH. BMW: ON SOME VEHICLES, WHEN STARTING, LOW BEAM, WITH 0552 OPTION, WOULD BRIEFLY FLASHES, DUE TO A FAULTY LED MAIN LIGHT MODULE THAT NEEDS REPLACING. MODEL 2008-14 F01, F02, F06, F07, F10, F12, F13, F25. *PE
SIB-12-14-122013-10-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. BMW: DIFFERENT FAULT CODES STORED FOR THE N51, N52K, N52T, AND N55 ENGINES IN THE DME RELATED TO VANOS AND CAMSHAFT POSITION. *KB UPDATED 11/1/13. *PE UPDATED 05/05/2014 *JS
SIB-36-02-112011-09-30. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. BMW: CHANGES HAVE BEEN MADE TO THE VEHICLE¿S DISPLAY ELEMENTS OF THE TIRE PRESSURE MONITOR SYSTEM. *RM

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