2012 BMW 335I Technical Service Bulletins

556 technical service bulletins (TSBs) are on record for the 2012 BMW 335I. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10148381Aug 1, 2014Engine cooling, Equipment. Service Action: Replace Emission Label. Certain 2015 model year vehicles with N47T and N57T diesel engines were produced with an "emissions" label which contains incorrect information pertaining to the 2015 model year. Affected vehicles in dealer inventory must not be retailed or delivered until this issue is corrected. Vehicles at VDCs will be repaired prior to dealer delivery.
• 10148375Aug 1, 2014Equipment. A/C Cooling: Intermittent Reduction of Air Flow. The customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than one hour.
• 10148373Aug 1, 2014Equipment, Electrical system. Head-Up Display Inoperative. The Head-up Display is inoperative. Fault code 0xB7F6E3 - HUD: Communication error (HUD does not answer) is stored in the Instrument Cluster (KOMB25). A software error in the instrument cluster prevents the Head-up Display from activating.
• 10148371Aug 1, 2014Electrical system, Equipment. Vehicle Only Starts when Remote Key Held Against Column. The vehicle does not start using the Comfort Start feature. The vehicle does start once the remote key is held next to the steering column emergency start area (key symbol at the right side of the column between the white marks). The antenna (aerial) in the passenger compartment near the front of the center console has shorted wiring.
• 10148218Aug 1, 2014Fuel system. N20 and N26 Injector Replacement. INFORMATION When a defective high-pressure fuel injector is identified with an index "02" designation, as shown in the illustration below, all 4 injectors must be replaced at the same time. This bulletin only applies to index "02" injectors. Index "01" and index "03" or higher are not affected. No immediate repair is required unless the BMW vehicle is currently experiencing this…
• 10148135Jul 1, 2014Electrical system. ConnectedDrive/BMW Assist System Diagnosis Information. 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…
• 10148132Jul 1, 2014Forward collision avoidance. Front Collision Warning Check Control Message Displayed in CID. Occasionally while driving, a check control message (CCM) for Front Collision Warning is displayed in the Central Information Display (CID). This message is cleared from the CID by clicking on "OK" using the iDrive controller.
• 10148128Jul 1, 2014Equipment. Headunit High Is Constantly Resetting. After connecting a mobile device via Bluetooth, the Headunit High (HU-H) constantly resets. This is because the mobile device paired/connected to the vehicle contains one or more emails with 30 or more recipients. Note: In this situation, a reset is when the HU-H shuts down and then turns back on. CAUSE Software error in the HU-H.
• 10148120Jul 1, 2014Electrical system. Check Control Messages Related to Battery Charge During Cold Ambient Temperatures. On cold days with an outside ambient temperature of less than 15°F, customers may notice a check control message related to the battery that is displayed on the instrument cluster and the control information display. Under these conditions, the vehicle starts.
• 10148117Jul 1, 2014Engine cooling. Exhaust Leak on Diesel Particulate Filters. An exhaust leak develops on the Diesel Particulate Filter (DPF) around the area of the flexible coupling. Age or wear on the flexible coupling
• 10148087Jul 1, 2014Engine cooling. External Engine Oil Leaks and Repairs. During the vehicle's operational life, normal engine oil seepage or sweating, in addition to accumulated road dust, dirt and grime in the engine compartment can cause the appearance of a more severe oil leak. This is further exaggerated by residual oil that remains on the engine assembly after maintenance services are performed, e.g., oil filter changes, "engine oil top-offs,"…
• 10148101Jun 1, 2014Electrical system. iPhone: Connection Failures with iOS 7. There are various connectivity failures with the iPhone using iOS 7. Some examples are listed below: * Call disconnection * Contact List incomplete * General connection failures CAUSE Apple software iOS 7 and its variants.
• 10148097Jun 1, 2014Engine. Service Action: Repair Corrosion Protection Engine Compartment. Various engine compartment battery cable mounting points are not sufficiently protected against corrosion. Lack of corrosion protection can lead to improper connections associated with the battery cables. AFFECTED VEHICLES This Service Action involves F30 3 Series vehicles produced from June 2012 to January 2013. First check if a Service Action label…
• 10148334May 1, 2014Exterior lighting. Active Headlight Control Malfunction in Both Headlights. AHL (Active Headlight Control) malfunctions on both sides. Both lights aim either up or down while driving. Fault Code 8041B6 is present. Broken mounting bolt holding on the rear height sensor bracket.
• 10148333May 1, 2014Electrical system, Engine. Condition Based Service Due Date Is Reset to 01/2000. The Condition Based Service (CBS) due date is reset to 01/2000 and cannot be updated for: * Oil Service * Check Vehicle Note: No fault code is stored Software error in the Instrument Cluster.
• 10148328May 1, 2014Equipment, Body and structure. Cleaning Excess Butyl from RHT Roof Shells. Butyl adhesive is used to secure the seals of the retractable hardtop (RHT) to the steel roof shell panels. Particularly at high ambient temperatures, if excess butyl is present, it may start to seep out from between the seal and the roof shell. This butyl may be black or gray in color. Excess butyl applied to the roof shell during assembly
• 10148323May 1, 2014Latches, locks and linkages, Body and structure. Trunk Lid Does Not Open Completely. The customer may complain that the trunk does not open fully when using the remote key or hands-free trunk-lid opening (a Comfort Access function). CAUSE * A dry trunk lid seal causes the trunk lid to stick. * F30 and F32 only: A trunk return spring that is not installed correctly may not open the trunk lid fully.
• 10148321May 1, 2014Equipment. MF56 Make Good Program: Install Accessory Roof Graphic or Mirror Caps. Due to production restrictions at Plant Oxford, certain F56 vehicles produced in May and June of this year cannot be built with the factory option for the contrasting roof and/or mirror caps. This production issue was caused by the plant expanding its paint capabilities to meet increasing vehicle demand.
• 10148320May 1, 2014Tires. Third Generation Tire Pressure Monitor System (RDC). INFORMATION As of September 2009 production, a new generation Tire Pressure Monitor System has been introduced for all 3 Series models. Although the basic operation of the system is similar to the previous version, there are several key differences between the two systems.
• 10148318May 1, 2014Tires, Equipment. Tire Pressure Monitor System (TPMS) Functional Changes. INFORMATION There has been a disruption in the production and supply chain of certain electronic components. These events have influenced global manufacturing facilities, including the automotive sector. In order to fulfill customer demand and maintain production schedules, BMW has made a change to the Tire Pressure Monitor System of certain vehicles.
• 10148316May 1, 2014Brakes. Incorrect Remaining Service Life from CBS Data for Brake pads. The yellow "Service Due" warning message lights up in the instrument cluster, even though the brake pad thickness is more than 4.2mm (above the thickness at which the pad sensor intervenes). The calculated remaining service life for the brake pads (front and/or rear axle) from the CBS data does not match the actual brake pad thickness. Note: E9x…
• 10148276Apr 1, 2014Equipment. Traffic Information Is Inoperative. The traffic information is intermittently or permanently inoperative. * Traffic flow is not displayed on the navigation map. * The traffic list is empty. 1. The Offboard Availability (backend) system is unavailable and is not sending traffic information. 2. The traffic information feature is not activated correctly.
• 10148275Apr 1, 2014Exterior lighting, Equipment. "One or Both Xenon Headlights Aiming Downwards. CAUSE Both sides are aiming downwards: * The most likely cause is a faulty or disconnected rear height sensor. In very extreme cases due to poor road conditions, both headlight assemblies could have the vertical aim ball socket adjuster disconnected, as noted below.
• 10148273Apr 1, 2014Equipment, Electrical system. Check Control Messages Related to Battery Charge During Cold Ambient Temperatures. On cold days with an outside ambient temperature of less than 15F, customers may notice a check control message related to the battery that is displayed on the instrument cluster and the control information display. Under these conditions, the vehicle starts.
• 10148270Apr 1, 2014Body and structure, Equipment. Front Door Loudspeaker Make Noises When Cold. The customer complains of front door loudspeaker noises when the temperature is below freezing. CAUSE Water from the door window may enter the rear area of the front door medium range loudspeaker basket/cage and can solidify when the temperature drops below freezing, creating the noise.
• 10148268Apr 1, 2014Electrical system. Service Action: Repair Corrosion Protection in Engine Compartment. Various engine compartment battery cable mounting points are not sufficiently protected against corrosion. Lack of corrosion protection can lead to improper battery cable connections.
• 10148267Apr 1, 2014Electrical system. Service Action: Repair Corrosion Protection Engine Compartment. Various engine compartment battery cable mounting points are not sufficiently protected against corrosion. Lack of corrosion protection can lead to improper connections associated with the battery cables.
• 10148257Apr 1, 2014Fuel system, Engine cooling. "N47T and N57T Diesels with SCR Efficiency Faults Stored. A. The Service Engine Soon lamp is on (MIL) with either or both of the following SCR efficiency faults stored in the DDE: * 26F500 - SCR system, efficiency: Efficiency too low * 26F600 - SCR system, efficiency: Efficiency too low B. In addition, a Check Control message of ""Incorrect diesel exhaust fluid"" may be displayed with ""no start scenario…
• 10148252Apr 1, 2014Transmission and drivetrain. "Transmission Intermittently Goes into ""P"" or ""N"" After MSA Engine Start. After an MSA engine start, the transmission intermittently goes into the Park (P) or Neutral (N) position without any customer influence. This problem can be sporadic, difficult to reproduce, and no relevant faults are stored. Unfavorable DME/EGS software"
• 10148010Mar 1, 2014Equipment, Electrical system. ConnectedDrive/BMW Assist System Information and Availability. ConnectedDrive features are partially or completely inoperative. Examples of some of these features are listed below: * BMW Assist Inoperative ? SOS call ? Roadside Assistance call * My BMW Remote App * BMW Online - Google local search * Concierge CAUSE The Electronic Subscriber Agreement (ESA) is inactive.
• 10148008Mar 1, 2014Equipment. RAD2+ Radio: Background Noise with Audio Turned Off. Background noise (buzzing, crackling, static) can be heard: * At low audio volume * When the radio is turned off * When the ignition is turned off NOTE: Background noise stops when the radio enters sleep mode. IMPORTANT: Background noise is more noticeable on vehicles produced before 09/2009 in case a RAD2+ replacement radio was installed previously. RAD2+ radio…
• 10147927Mar 1, 2014Equipment, Engine cooling. A/C Cooling: Intermittent Reduction of Air Flow. The customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than one hour.
• 10147925Mar 1, 2014Exterior lighting. Active Headlight Control Malfunction in Both Headlights. AHL (Active Headlight Control) malfunctions on both sides. Both lights aim either up or down while driving. CAUSE Broken mounting bolt holding on the rear height sensor bracket
• 10147984Feb 1, 2014Equipment. iPhone Charging Status Constantly Switches On and Off. INFORMATION Do not replace any other parts! Advise the customer that he/she must use one of the following: * The original Apple iPhone/iPOD USB cable that came with the device * A BMW supplied iPhone/iPOD USB adapter cable PARTS INFORMATION
• 10147982Feb 1, 2014Equipment. Headunit-High: Navigation Road Map Installation After Replacement. When replacing the HU-H, the road map database version that was in the defective HU-H must be installed in the new HU-H.
• 10147981Feb 1, 2014Air bags. "Airbag Warning Light: ACSM FC 930A60 Seat Occupancy Detection. According to the customer, the airbag warning light was on, but it may not be on when the vehicle arrives in the workshop. ACSM fault code ""930A60 - Seat occupancy detection, front passenger; malfunction"" is stored. The fault may or may not currently be present. CAUSE The front passenger seat occupancy mat consists of a seat occupancy mat with a…
• 10147980Feb 1, 2014Engine cooling, Visibility (wipers, defrost, mirrors). Service Action: Replace Blower Motor Regulator. The blower motor regulator has an internal fault; after starting the engine, there may be a delay of up to a minute before the blower motor comes on CAUSE Faulty blower motor regulator (output stage)
• 10147979Feb 1, 2014Visibility (wipers, defrost, mirrors), Equipment. Noise from Heating and Air Conditioner. There is an intermittent whirring noise from the IHKA system when the engine is under load between 2,000 and 3,000 rpm, and sometimes at approximately 5,000 rpm. CAUSE Vibrations from the A/C low-pressure hose are resonating into the heating and air conditioning system.
• 10147977Feb 1, 2014Interior lighting, Exterior lighting. ?Taillight Is Loose in the Trunk Lid. The customer may notice the taillight is either loose or protruding outward from the trunk lid. CAUSE The taillight is not attached to the trunk lid properly due to the taillight design. If a customer complains of this taillight issue, an improved part is now available.
• 10147976Feb 1, 2014Electrical system. The Condition Based Service (CBS) due date is reset to 01/2000 and cannot be updated for: * Oil Service * Check Vehicle Note: No fault code is stored Software error in the Instrument Cluster
• 10147974Feb 1, 2014Visibility (wipers, defrost, mirrors). ?Sunroof Gets Stuck or Moves in Small Steps. During opening or closing the sunroof, one or more of the following situations may occur: 1. The sunroof becomes stuck 2. One-touch open and close no longer works 3. The sunroof moves in small steps.
• 10147973Feb 1, 2014Visibility (wipers, defrost, mirrors), Electrical system. Noise from Rearview Mirror. Rattling noises can be heard from the rearview mirror when driving. CAUSE The mirror electrical connector is loose in the mirror base.
• 10147972Feb 1, 2014Body and structure, Equipment. Service Action: Remove and Discard Water Drain Plugs from E-Box. Water leaks into the cabin due to clogged drain plugs in the E-boxes. CAUSE The drain plug slots are too small and clog.
• 10147967Feb 1, 2014Engine, Engine cooling. Reduced Engine and Air-Conditioning Performance. When driving with high outside ambient temperatures, repeated stop and go, or high load operation over longer distances, the engine performance can be reduced. The air-conditioning system blower output may also be reduced, and in some circumstances the compressor is switched off. There could be any of the following faults stored depending on the conditions present at…
• 10147954Jan 1, 2014Equipment. Enabling Code FSC/SWT - Enabling the Navigation System Map at QC1. The navigation system is inoperative unless the map is enabled during the QC1 Pre-Delivery Check. INFORMATION New vehicles come equipped with a navigation road map that must be enabled via an enable code (FSC). This process is part of the QC1 Pre-Delivery Check performed with the ISID (ISTA Diagnosis). IMPORTANT: There is no programming involved!
• 10147953Jan 1, 2014Electrical system. "ConnectedDrive/BMW ASSIST Features Are Inoperative. ConnectedDrive features are partially or completely inoperative. * No traffic information (RTTI / ARTTI) * BMW ASSIST ""My Info"" service doesn't work. CAUSE The Electronic Subscriber Agreement (ESA) is inactive. * No active contract for ConnectedDrive features Offboard Availability (Backend) system issues * The external network was/is inoperative. * No data is…
• 10147952Jan 1, 2014Electrical system. Headunit-High: INITIAL Enabling Code Is Not Accepted Via I-Drive. INFORMATION Do not replace any parts. NOTE: First time activation of the navigation system should always be performed during the Quality Certification 1 (QC1) Pre-Delivery Check, with the vehicle connected to the diagnosis system ISTA. Refer to SI B65 30 09. Connect the vehicle to the diagnosis system ISTA and activate the navigation system. The code…
• 10147950Jan 1, 2014Engine cooling, Visibility (wipers, defrost, mirrors). Service Action: Replace Blower Motor Regulator. The blower motor regulator has an internal fault; after starting the engine, there may be a delay of up to a minute before the blower motor comes on CAUSE Faulty blower motor regulator (output stage)
• 10147949Jan 1, 2014Visibility (wipers, defrost, mirrors), Engine cooling. ?SI B64 06 13 January 2014 Body EquipmentTechnical Service This Service Information bulletin supersedes SI B64 06 13 dated November 2013. designates changes to this revision SUBJECT A/C Cooling: Intermittent Reduction of Air Flow. The customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than one hour.
• 10147945Jan 1, 2014Exterior lighting. Delay in Automatic Driving Light Switching On/Off. When driving out of a tunnel or exiting underground parking, the automatic driving light remains switched on for two minutes, even in daylight. The automatic driving light switching on/off can be shorter or longer when it starts to get dark. CAUSE The software for the switch-on threshold is lowered to protect the xenon light source.

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