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Service bulletins for the 2008 BMW 128i

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.

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

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By component

By trouble code

Bulletins, newest first
B6507092018-12-10. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Whistling Noise Coming from the Center Vent - A/C is Off . A very high pitched whistling or beeping noise is heard coming from the center vents. The flow of refrigerant through the expansion valve at certain temperature differentials.
6522122018-12-03. Service bulletin. EQUIPMENT. Service Action: CIC - Install Navigation Road Map Database 2013. The Car Information Computer (CIC) road map database 2013 must be installed onto the CIC internal Hard Disc Drive (HDD).
6501102018-12-03. Service bulletin. EQUIPMENT. "CCC - ""Please Insert Navigation DVD"" Appears on CID. The navigation map DVD cannot be read or detected. The message ""Please insert navigation DVD"" appears in the CID (Central Information Display). The navigation system is inoperative. This situation may also occur when upgrading to a new navigation map. The old map is recognized but the new one is not. CAUSE Faulty DVD drive; read error due to hardening of the anti-vibration gel on the read head"
1221122018-12-03. Service bulletin. VEHICLE SPEED CONTROL. "N51, N52K and N52T: Idle Fluctuation During Engine Warm-up Phase. After a cold engine start, the idle speed may be unstable or start fluctuating up and down slightly while the vehicle is stopped. On vehicles with automatic transmissions, roughness or shuddering may be felt during this warm-up period when diving away slowly in ""D"" or in ""R"" without depressing the accelerator pedal. No relevant errors are stored in the DME fault code memory, and these symptoms are no longer present once the engine is at operating temperature (> 90C). Unfavorable DME software"
6515122018-12-03. Service bulletin. EQUIPMENT. "Service Action: CIC - Install Navigation Road Map Database 2013. Before delivering affected vehicles to the customer, the Car Information Computer (CIC) road map database 2013 must be installed onto the CIC internal Hard Disc Drive (HDD). Note: The INITIAL enabling code ""FSC CIC map, N. America 2013 INITIAL"" is necessary to start the installation process and to activate the road map database."
6113052018-12-03. Service bulletin. ELECTRICAL SYSTEM. "Discharged Battery: Energy Diagnosis Must Be Performed. The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle ""discharged battery"" complaints. A discharged battery can have various causes, most of which do not concern the battery itself. A failed battery is often the symptom and not the cause. A fully serviceable battery fails when an electrical component causes the battery to discharge; the battery becomes internally damaged and must be replaced. For more information, refer to www.batteryuniversity.com/parttwo-42B.htm For this reason, replacing the battery is not usually a permanent repair. The cause of the discharged battery must be analyzed in order to guarantee a proper repair. In order to properly repair the vehicle the first time in the workshop, it is very important that the diagnostic test plans are performed to completion with all results taken into to consideration. The procedure as outlined below contains information that will guide the technician into properly repairing the vehicle and getting paid for a warranty claim. CAUSE Refer to the ""Procedure"" section of this Service Information for details."
6511122018-12-03. Service bulletin. EQUIPMENT. Intermittently Stored FM Radio Stations Default to FM 87.7. Intermittently, the stored FM radio stations default to FM 87.7 after vehicle start-up. CAUSE 1. Low battery voltage or voltage drop at the head unit 2. Radio station preset contains FM 87.7 3. Remote key memory not set correctly or the setting is lost
6510132018-12-03. Service bulletin. SEATS. "The replacement OC3 seat mat (front passenger seat occupancy) will not enable when following ISTA Repair Instruction REP 65 77 604, ""Replacing sensor mat (OC3 mat) for passenger seat occupancy detector."" 1. When the new mat is installed in the vehicle, too much pre-load pressure will prevent the mat from being enabled. ISTA/P WILL NOT enable the new part, and will cause permanent damage to it. 2. The new part has incorrect coding."
5136082018-12-03. Service bulletin. VISIBILITY. "Outside Door Mirror Moves when Locking or Unlocking the Vehicle. The door mirror tilts immediately after unlocking or locking. The mirror position does not correspond to the memory position preset by the customer. Pressing the seat memory button typically will return the mirror to the stored position. Poor electrical contacts of the mirror drive in the mirror housing INFORMATION The problem has been integrated into ISTA diagnostics. Complete the diagnosis test plan using the latest ISTA version. The test plan can be accessed via the following path: ""Information Search / Function Structure / Body / Mirror / Exterior mirrors / Driver's or passenger side / Electrochromic Mirror,"" and then press ""Start Search."" Select the test plan ""AM5102_00010."""
5136082018-12-03. Service bulletin. STRUCTURE; VISIBILITY; ELECTRICAL SYSTEM. "Outside Door Mirror Moves when Locking or Unlocking the Vehicle. The door mirror tilts immediately after unlocking or locking. The mirror position does not correspond to the memory position preset by the customer. Pressing the seat memory button typically will return the mirror to the stored position. Poor electrical contacts of the mirror drive in the mirror housing INFORMATION The problem has been integrated into ISTA diagnostics. Complete the diagnosis test plan using the latest ISTA version. The test plan can be accessed via the following path: ""Information Search / Function Structure / Body / Mirror / Exterior mirrors / Driver's or passenger side / Exterior Mirror https://www.bmwtis.net/tiscode/cgi-bin/bulletin.aspx?sie_path=/tsb/bulletins/htm_store/15...12/6/2013 Page 2 of 2 Malfunction,"" and then press ""Start Search."" Select the test plan ""AM5102_00010."""
6513102018-12-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. In all audio modes (radio, CD, AUX-In, etc.), the audio output is distorted. It is more noticeable with high bass and high audio volume settings. There may also be an intermittent interference noise coming from the loudspeakers at low audio volume or when the radio is turned off. Audio settings in the RAD2+ (radio professional)
6510132018-12-03. Service bulletin. AIR BAGS; AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION. "Enabling and Replacing New OC3 Seat Mat. The replacement OC3 seat mat (front passenger seat occupancy) will not enable when following ISTA Repair Instruction REP 65 77 604, ""Replacing sensor mat (OC3 mat) for passenger seat occupancy detector."" When the new mat is installed in the vehicle, too much pre-load pressure will prevent the mat from being enabled. ISTA/P WILL NOT enable the new part, and will cause permanent damage to it."
6510092018-12-03. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT. The vehicle position is missing or incorrect on the navigation map. The navigation system integrated in the Car Information Computer (CIC) is not calibrated correctly.
1302132018-12-03. Service bulletin. FUEL/PROPULSION SYSTEM. N54 Engine: Fuel Pressure Control Test Plan Error. INFORMATION Not applicable.
1216112018-12-03. Service bulletin. ENGINE; POWER TRAIN. N55 Engine Failsafe - FC 120308 Boost Pressure Control, Plausibility: Pressure Too Low Stored in DME Fault Memory. INFORMATION The customer complains the SES is illuminated and the engine has reduced power (engine failsafe mode).
1109072018-12-03. Service bulletin. ENGINE. Intermittent Hydraulic Valve Adjuster (HVA) Noise. An occasional ticking or rattling noise from the camshaft hydraulic valve lifters (HVA) may occur during cold engine starts, due to frequent short-distance driving, or the noise may occur for an extended period of time even though the engine is at operating temperature. Improved parts were phased into production beginning on 10/1/2008 and fully implemented on November 31st 2008.
0102122018-12-03. Service bulletin. ENGINE; EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. "BMW NA has agreed to extend the emissions warranties of the turbocharger's wastegate to: ??8 years or 82,000 miles, whichever occurs first, as determined from the vehicle's original in-service date select the ""Vehicle Comment"" button to display the extended coverage information. The terms of the original New Vehicle/SAV Limited Warranty and applicable emissions warranty still apply. BMW NA will not provide warranty coverage to any Settlement Class Member's vehicle containing modifications or alterations to the turbocharger or its wastegates (software, hardware or otherwise), or evidencing other conditions not normally covered under the original New Vehicle/SAV Limited Warranty or applicable emissions warranty. Modifications excluded from warranty coverage include any aftermarket parts that affect the turbocharger system, or if there are other conditions that would normally exclude it from warranty coverage."
6513102018-11-26. Service bulletin. EQUIPMENT. In all audio modes (radio, CD, AUX-In, etc.), the audio output is distorted. It is more noticeable with high bass and high audio volume settings. There may also be an intermittent interference noise coming from the loudspeakers at low audio volume or when the radio is turned off. Audio settings in the RAD2+ (radio professional)
1304092018-11-26. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE. "N54 Engine: Diagnosis of Cold Start Rough Running with Misfire Faults. The customer may complain that during the cold start in the morning, the engine runs very roughly and the Service Engine Soon lamp is illuminated. Various misfire fault codes (e.g., 29CC, 29D2, 29D1, 29D0, 29C0, 29CF) may be stored in the DME control module. The engine rough running complaint can be reproduced on a cold start in the workshop. During the course of diagnosis, the spark plugs, removed from the misfiring cylinders after the problem was reproduced, are found to be soaked (""wet"") with fuel, while the injector tips are covered with a layer of carbon deposit. Possible cause: high-pressure injector failure (leakage or incorrect spraying pattern) due to internal wear or unfavorable stock of tolerances IMPORTANT: For comprehensive N54 drivability diagnostics, always refer to the ""N54 Engine Diagnostic Fault Tree"" file (the current version ""02_14_13"" is found as a PDF attachment to SI B12 55 06)."
B0116182018-11-26. Service bulletin. ELECTRICAL SYSTEM; AIR BAGS. For the above-referenced vehicles with driver?s side airbag modules, BMW of North America, LLC (?BMW NA?) will provide a Customer Support Program as outlined in the Takata Settlement Customer Support Program Overview attachment. This ?component-specific? customer support program applies only if there is a defect in materials or workmanship of the Takata driver?s side airbag module in a listed vehicle.
8403132018-11-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. "Roadside Assistance and BMW Online Services Inoperative After Programming. Roadside Assistance and BMW Online services are inoperative after programming the vehicle with ISTA/P 2.48 to 2.49.0. The symptoms are as follows: * BMW Online - No network available when selected * Roadside Assistance - When selected, a message stating ""Service not enabled or contract expired"" is displayed. Also, ""Start service"" is grayed out and cannot be selected. CAUSE Software error in the CIC (Car Information Computer)"
8403132018-11-26. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. "Roadside Assistance and BMW Online Services Inoperative After Programming. Roadside Assistance and BMW Online services are inoperative after programming the vehicle with ISTA/P 2.48 or higher. The symptoms are as follows: * BMW Online - No network available when selected * Roadside Assistance - When selected, a message stating "Service not enabled or contract expired" is displayed. Also, "Start service" is grayed out and cannot be selected. CAUSE Software error in the CIC (Car Information Computer)"
5136082018-11-26. Service bulletin. VISIBILITY. "Outside Door Mirror Moves when Locking or Unlocking the Vehicle. The door mirror tilts immediately after unlocking or locking. The mirror position does not correspond to the memory position preset by the customer. Pressing the seat memory button typically will return the mirror to the stored position. Poor electrical contacts of the mirror drive in the mirror housing INFORMATION The problem has been integrated into ISTA diagnostics. Complete the diagnosis test plan using the latest ISTA version. The test plan can be accessed via the following path: ""Information Search / Function Structure / Body / Mirror / Exterior mirrors / Driver's or passenger side / Electrochromic Mirror,"" and then press ""Start Search."" Select the test plan ""B5116_ECSPPL2."""
84030142018-11-26. Service bulletin. ELECTRICAL SYSTEM. iPhone: Connection Failures with iOS 7. There are various connectivity failures with the iPhone using iOS 7. Some examples are listed below: z Call disconnection z Contact List incomplete z General connection failures Apple software iOS 7 and its variants
2801142018-11-26. Service bulletin. POWER TRAIN. DCT Transmission: Oil Leakage Diagnosis. INFORMATION Incorrect diagnosis of DCT (Double-clutch Transmission) oil leaks may lead to unnecessary part replacements and repeat customer repair visits. When diagnosing complaints related to DCT fluid leaks, please use the attached diagnostic procedure. WARRANTY INFORMATION Not applicable. ATTACHMENTS View PDF attachment B280114_DCT_Oil_Leak_Diagnosis. [ Copyright (c)2014 BMW of North America, Inc. ] https://www.bmwtis.net/tiscode/cgi-bin/bulletin.aspx?sie_path=/tsb/bulletins/htm_store/16672.2.B28011... 12/24/2014

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