WenmarOpen by Wenmar Pro

Service bulletins for the 2012 BMW 335i

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.

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

By type

By component

By trouble code

Bulletins, newest first
6132122018-11-26. Service bulletin. ELECTRICAL SYSTEM. "REM: Various Electrical Faults in Rear of a Vehicle. Various electrical faults associated with the rear of the vehicle occur, including one or more of the following: * The REM (Rear Electronic Module) does not respond to diagnosis. * The one-touch function of the rear power windows is inoperative. * The rear power windows cannot be initialized. * The trunk lid cannot be opened. * The brake lights are not working (check control message ""Left/right brake light failed"" is displayed). * The rear turn indicator lights are not working (check control message ""Rear left/right turn indicator failed"" is displayed). One or more of the following faults are stored in the REM: * ""804805 Internal software control unit fault"" * ""804876 Turn indicator, rear left, faulty"" * ""804877 Turn indicator, rear right, faulty"" * ""804872 Brake light, left, faulty"" * ""804874 Brake light, right, faulty"" * ""30195 Window regulator, passenger's side door, rear: invalid characteristic curve, no normalization present"" * ""30115 Power window, rear door on driver's side: invalid characteristic curve, no normalization present"" * ""301A0 Window regulator on passenger's side door, rear: system is not normalized"" * ""30120 Power window, rear door on driver's side: system is not standardized"" CAUSE Rear power window drive(s) faulty"
3202132018-11-26. Service bulletin. STEERING. Electronic Power Steering (EPS) Fails when Starting: Fault Code 4823E1. The EPS fails briefly when starting the engine. FC 4823E1 is stored in the EPS_20 control unit. CAUSE Specific undervoltage situation during engine starting.
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)."
1255062018-11-26. Service bulletin. FUEL SYSTEM, GASOLINE. N54: Diagnosis for DME FC 29DC/29F2/2FBF and Extended High-pressure Fuel Pump (HDP) Warranty Coverage.
B1227162018-11-26. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSING NON FUNCTIONING eDRIVE. * Vehicle will not go into "eDrive" * No pertinent electric drivetrain fault codes to assist with diagnosis * "eDrive" may be greyed-out in the Central Information Display (CID) and is not selectable * MSA deactivation * 12 volt battery failure * Intelligent Battery Sensor (IBS) failure.
B1209182018-11-26. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. NOISE FROM ENGINE WHEN STARTING. Noise when starting the engine. Engine making a rattling/grinding noise near the 12 volt starter motor. The following fault has been stored in the DME fault memory: * 21A511 - Start system, pinion starter motor: Timeout The following faults are also possible: * 21A504 - EGS, separation clutch: jammed open * 21A50A - Start system, pinion starter: Timeout successively occurred multiple times * 21A510 - Start system, EME: Timeout Consequential damage to flywheel (Torsional vibration damper) and automatic transmission may have also occurred. The starter motor is broken. It may be indicated by:
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.
B6411182018-11-26. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. STATIONARY CLIMATE CONTROL NOT WORKING AFTER HIGH VOLTAGE CHARGING. After the high voltage (HV) charging procedure, the stationary climate control (aka preconditioning) does not work. This is part of the normal design. There is no fault or defect.
B6130172018-11-26. Service bulletin. ELECTRICAL SYSTEM. RAIN/LIGHT SENSOR (RLS): OIL LEAKAGE FROM GEL PAD. ??Oil leaking from the Rain/Light Sensor (RLS). Note: This oil serves as a separation medium between the RLS mounting gel pad and the windscreen. The oil ensures damage free disassembly in case of repair. CAUSE The oil that serves as the separation medium of the Rain/Light Sensor (RLS) gel pad and the windscreen leaks out. Expose the Rain/Light Sensor (RLS) and properly clean the area of all oily residue. Note: The separating oil usually leaks only once from the pad at the RLS. Due to the small oil quantity in the gel pad, additional oil leakage is not plausible. Leaking oil does not impair the function of the RLS.
B3208182018-11-26. Service bulletin. STEERING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. SERVICE ACTION. REWORK THE STEERING GEAR. Screws attaching the power pack to the steering gear may be broken. Broken screws result in noises during steering motions and variable steering assistance. Check Control Message (CCM) may be displayed.
7101132018-11-26. Service bulletin. EQUIPMENT. PERFORM THE PROCEDURE OUTLINED IN THIS SERVICE INFORMATION ON ALL AFFECTED VEHICLES BEFORE CUSTOMER DELIVERY OR THE NEXT TIME THEY ARE IN THE SHOP FOR MAINTENANCE OR REPAIRS. BMW centers must ensure recalls are completed after having been notified by BMW of North America, LLC (BMWNA) that a safety-related defect or noncompliance exists in any motor vehicle or item of replacement equipment in the center's possession at the time of notification. In BMW NA's case, this notification would typically be made by the issuance of a recall notification in the form of a Service Information bulletin (SIB) or transmission of a Dealer Communication System (DCS) recall message. Under the National Traffic and Motor Vehicle Safety Act of 1966, as amended, if a recall campaign is announced by BMW NA, centers must ensure that all recalls on new vehicles and new items of replacement equipment are completed BEFORE delivery to the consumer. This means that centers may not legally deliver new motor vehicles or new items of replacement equipment to consumers with an open recall. The Safety Act also prohibits centers from selling or leasing the motor vehicle or item of replacement equipment, unless and until the open recall has been completed BEFORE delivery. This also pertains to vehicles in the Certified Pre-Owned program, and to items of replacement equipment. Finally, BMW centers should not sell or use parts that have been recalled by BMW NA. Please follow the specific instructions provided by BMW NA on the return or disposition of the parts. SUBJECT Voluntary Emissions Recall Campaign 13E-A02: Replace Emissions Label. Certain vehicles were produced without the required emissions label installed on the underside of the engine hood. Customers will receive notification letters informing them to make a service appointment at their BMW centers to have the correct label installed.
6602132018-11-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. Rear-view Camera Does Not Turn On Automatically. When the reverse gear is selected, the rear-view camera does not turn on automatically. The driver must activate the rear-view camera using the iDrive controller or the camera button. CAUSE Software error in the Front Electronics Module (FEM)
6510122018-11-26. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. "Headunit-Basic: CID is blank and ""NO SIGNAL"" is Displayed. Intermittently the Central Information Display (CID) is blank and ""NO SIGNAL"" is displayed on the CID. ??Fault Code B7F8C3 ""no response from CID (HW error: loss of CID communication)"" is stored in the HU-B Error in the Headunit-Basic (HU-B), also called Radio Professional or ENTRY head unit."
6504132018-11-26. Service bulletin. EQUIPMENT. Service Action: Real Time Traffic Information Activation. The Real Time Traffic Information (RTTI) is inoperative. ??The traffic information icon is missing from the menu in the navigation map screen. CAUSE Option 6UH (RTTI) is missing from the Vehicle Order (VO).
6104132018-11-26. Service bulletin. EQUIPMENT. "After FEM Replacement, ISTA/P Unable to Read Vehicle Order. After the FEM (Front Electronic Module) is replaced, ISTA/P states ""The vehicle order could not be read from the vehicle. Import of the vehicle order required."" The replacement FEM does not contain the vehicle-specific data, including the Vehicle Order (VO). The proper ISTA/P parts replacement procedure was not performed."
6102112018-11-26. Service bulletin. ELECTRICAL SYSTEM. Advanced Onboard Battery Diagnostics. Starting with the introduction of the F10 (5 Series), an advanced intelligent battery sensor has been used. This now makes it possible for the vehicle to monitor the condition of the battery in order to determine if the battery needs to be recharged or replaced, along with the remaining capacity of the battery. The analysis and testing of the battery's SoC (Stateof Charge) and SoH (State of Health) is now performed using ISTA (Integrated Service Technical Application) diagnosis. A separate test using a battery tester is no longer needed.
5202132018-11-26. Service bulletin. SEATS. Front Seat Headrest Height Changes. The left or right front seat headrest can no longer be lowered to its lowest position, and is at a different height than before.
5201132018-11-26. Service bulletin. SEATS. "Front Crash-Active Headrest Has Limited Height Adjustment. INFORMATION This bulletin will help you understand the features of the crash-active headrest and explain the benefits to your customers and center staff. 1. Learn the safety features and operation of the front seat and crash-active headrest. Photos A and B: In the event of an accident, the rear passenger must be able to move the front seatback forward, regardless of the seat position. This allows the rear passenger an easy exit from the rear seat of the vehicle, even if the electrical power source is no longer available. 2. When the seatback is manually moved, the headrest must have free movement throughout the full range of the seatback. Photos C and D: The headrest and seatback must be able to move fore and aft without contacting the roof or sun visor, regardless of seat position. The headrest height will automatically adjust to maintain this clearance, regardless of seat position. 3. In case of an accident, the crash-active headrest will be automatically activated forward to reduce the distance between the occupant's head and the headrest. This results in increased safety for the occupant. Photo E shows the headrest in the normal position. Photo F shows the headrest in the ""active"" position and will not contact the roof. Note: The headrest's chrome bar supports can be seen. "
5137122018-11-26. Service bulletin. EQUIPMENT. Service Action: Replace B-pillar Manufacturer's Certification Label. The B-pillar manufacturer's certification label data does not match the vehicle.
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."""
5104132018-11-26. Service bulletin. VISIBILITY. Noise from Front Windshield. When driving at varying road speeds, a wind or whistling noise may be heard coming from the windshield at the Apillars. The gap between the drip molding and the A-pillar is excessive or uneven.
5102132018-11-26. Service bulletin. VISIBILITY. Noise from the Door Mirror when Opening the Front Door. A grating noise may occur in the area of the mirror triangle when the door is opened or closed. CAUSE The door mirror triangle fitment to the mirror recessed cover
3601132018-11-26. Service bulletin. WHEELS. Steering Wheel Vibration at Speeds of 42-55mph. The customer complains of vibration at speeds between 42-55 mph. Wheel/tire combination Drive flange/wheel bearing Alloy wheel to wheel hub clearance out of tolerance Tension strut hydro-mount leaking
1112122018-11-26. Service bulletin. ENGINE. N20 Engine: Engine Oil Filter Application. INFORMATION The current version of EPC does not provide all available options for the engine oil filters that are used in the N20 engine. The illustrations below will help identify the proper engine oil filter application until the EPC is corrected. Vehicles produced prior to 6/2012 will be equipped with a black plastic oil filter housing (1). In this case, engine oil filter kit P/N 11 42 7 634 291 should be used. Vehicles produced as of 6/2012 and later will be equipped with a silver aluminum oil filter housing (1). In this case, engine oil filter kit P/N 11 42 7 640 862 should be used.
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

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