Technical Service Bulletins (TSBs) for the 2020 M4 are official communications between BMW & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    STEERING

    • TSB #B310318

      Date Announced:
      FEB 01, 2022
      NHTSA ID:
      #10214259

      Cracking noises heard from the area of the front axle when rotating the steering while stationary or at low speed. Read More »

    • TSB #B610721

      Date Announced:
      SEP 01, 2021
      NHTSA ID:
      #10203340

      Groaning, scraping, or squeaking noise coming from the steering wheel area in the interior of the vehicle,when turning the steering wheel. Read More »

    STEERING: STEERING WHEEL/HANDLE BAR

    • TSB #B340414

      Date Announced:
      APR 01, 2021
      NHTSA ID:
      #10194296

      Diagnosis of Compound Brake System Complaints in M Vehicles: 1. Visible cracks are caused by high thermal stresses during rapid heating and cooling of the brake discs. Read More »

    SUSPENSION

    • TSB #B310124

      Date Announced:
      JAN 09, 2024
      NHTSA ID:
      #10249016

      With the vehicle is on a lift and the front struts are in the extended position, there may be a cracking and orclicking type noise when turning the steering wheel left/right. See attached video V31 01 24. Read More »

    • TSB #B340515

      Date Announced:
      NOV 01, 2020
      NHTSA ID:
      #10184575

      TICKING NOISE FROM THE FRONT AXLE WHEN CORNERING: The customer may complain of a metallic ticking noise from the front axle, when cornering, maneuvering, parking or pulling away from a parking space. Read More »

    • TSB #B310112

      Date Announced:
      AUG 01, 2020
      NHTSA ID:
      #10179812

      CRACKING NOISES FROM THE FRONTAXLE AREA WHILE TURNING THE WHEELS, WHEN STATION: Cracking noises are heard from the front axle area while maneuvering at low speeds (e.g. Read More »

    BRAKES (PWS)

    • TSB #B340921

      Date Announced:
      FEB 01, 2023
      NHTSA ID:
      #10233158

      A turbine-like noise can be heard from the rear axle while deceleration during the first 300 miles of operation when braking from low speed. Read More »

    • TSB #B341019

      Date Announced:
      DEC 01, 2019
      NHTSA ID:
      #10170577

      HELPFUL INFORMATION FOR CUSTOMER DISCUSSIONS REGARDING MOTORSPORT VEHICLE BRAKES: Note for customer deleted: If the noise does not disappear despite the attempts to regenerate the brake a repair is required. Read More »

    SERVICE BRAKES, HYDRAULIC

    • TSB #B340714

      Date Announced:
      OCT 13, 2023
      NHTSA ID:
      #10244237

      Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop. CAUSE Material- Read More »

    • TSB #B341019

      Date Announced:
      SEP 01, 2021
      NHTSA ID:
      #10203336

      Inform the customer during a consultation that the M Compound (standard equipment) and M Carbon Ceramic (optional) brakes are high-performance brake systems which are designed for sporty, dynamic driving styles. Read More »

    • TSB #B341019

      Date Announced:
      JUL 01, 2021
      NHTSA ID:
      #10201141

      Inform the customer during a consultation that the M Compound (standard equipment) and M Carbon Ceramic (optional) brakes are high-performance brake systems which are designed for sporty, dynamic driving styles. Read More »

    SERVICE BRAKES, AIR:DISC

    • TSB #B340414

      Date Announced:
      APR 01, 2021
      NHTSA ID:
      #10194296

      Diagnosis of Compound Brake System Complaints in M Vehicles: 1. Visible cracks are caused by high thermal stresses during rapid heating and cooling of the brake discs. Read More »

    • TSB #B360121

      Date Announced:
      APR 01, 2021
      NHTSA ID:
      #10194298

      Diagnosis of Compound Brake System Complaints in M Vehicles: 1. Visible cracks are caused by high thermal stresses during rapid heating and cooling of the brake discs. Read More »

    PARKING BRAKE

    • TSB #B513016

      Date Announced:
      APR 01, 2020
      NHTSA ID:
      #10174015

      TAILGATE UNINTENTIONALLY OPENS: This Service Information Bulletin (Revision 4) replaces SI B51 30 16 dated March 2018. Read More »

    ENGINE (PWS)

    • TSB #B610520

      Date Announced:
      APR 01, 2020
      NHTSA ID:
      #10174019

      CCM DISPLAYED "INCREASED BATTERY DRAIN" CAUSED BY CONTROLLER: This Service Information Bulletin (Revision 1) replaces SI B61 05 20 dated February 2020. Electrostatic discharge at standstill / start engine. Read More »

    POWER TRAIN:AXLE ASSEMBLY

    • TSB #B340921

      Date Announced:
      SEP 01, 2021
      NHTSA ID:
      #10203335

      A turbine-like noise can be heard from the rear axle while deceleration during the first 300 miles of operationwhen braking from low speed. Read More »

    ELECTRICAL SYSTEM

    • TSB #B611305

      Date Announced:
      JAN 11, 2024
      NHTSA ID:
      #10249027

      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. Read More »

    • TSB #B651523

      Date Announced:
      MAY 01, 2023
      NHTSA ID:
      #10238090

      After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes repeatedly fails. Read More »

    • TSB #B630917

      Date Announced:
      MAR 01, 2023
      NHTSA ID:
      #10235202

      Exterior rear lights do not work. Read More »

    • TSB #B840822

      Date Announced:
      MAR 01, 2023
      NHTSA ID:
      #10235205

      The 3G network in the US has been shut down. This means that only the 4G network will be available. In the 4G network, voice calls will be transferred via the Voice over LTE (VoLTE) function. Read More »

    • TSB #SIB662419

      Date Announced:
      JUN 01, 2022
      NHTSA ID:
      #10218384

      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. Read More »

    • TSB #SIB651312

      Date Announced:
      MAY 01, 2022
      NHTSA ID:
      #10214990

      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. Read More »

    • TSB #B640613

      Date Announced:
      DEC 01, 2020
      NHTSA ID:
      #10186227

      ?A/C COOLING INTERMITTENT REDUCTION OF AIR FLOW: Customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than 30 minutes. The evaporator starts to freeze up. Read More »

    • TSB #B610520

      Date Announced:
      MAY 01, 2020
      NHTSA ID:
      #10176377

      CCM DISPLAYED "INCREASED BATTERY DRAIN" CAUSED BY CONTROLLER: A yellow CCM (Check Control Message) ID 415 is displayed- "Increased battery drain! // Battery. Electrostatic discharge at standstill / start engine. Read More »

    • TSB #B840214

      Date Announced:
      APR 01, 2020
      NHTSA ID:
      #10174320

      CONNECTEDDRIVE/BMW ASSIST SYSTEM DIAGNOSIS INFORMATION: This Service Information Bulletin (Revision 7) replaces SI B84 02 14 dated May 2019. ConnectedDrive/BMW Assist features are partially or completely inoperative. Read More »

    • TSB #B610520

      Date Announced:
      FEB 01, 2020
      NHTSA ID:
      #10172497

      CCM DISPLAYED "INCREASED BATTERY DRAIN" CAUSED BY CONTROLLER. A yellow CCM (Check Control Message) ID 415 is displayed- "Increased battery drain! // Battery. Electrostatic discharge at standstill / start engine. Read More »

    • TSB #B840416

      Date Announced:
      JAN 01, 2020
      NHTSA ID:
      #10171504

      SOS MALFUNCTION DISPLAYED This Service Information Bulletin (Revision 1) replaces SI B84 04 16 dated September 2016. Read More »

    ELECTRICAL SYSTEM:SOFTWARE

    • TSB #B120321

      Date Announced:
      JUN 01, 2021
      NHTSA ID:
      #10200230

      Due to an software error, the adaptation values of the actuator contiguous wheel slip limitation (ARB) may be lost. Read More »

    • TSB #B840221

      Date Announced:
      JUN 01, 2021
      NHTSA ID:
      #10200249

      The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting February 2022. Read More »

    • TSB #B650709

      Date Announced:
      JUL 01, 2020
      NHTSA ID:
      #10179009

      NAVIGATION SYSTEM - REPORTING MISSING OR INCORRECT ROADMAP DATA: Do not replace parts and do not program the vehicle. Roads can change by up to 15% every year. Read More »

    EXTERIOR LIGHTING

    VISIBILITY:WINDSHIELD WIPER/WASHER

    • TSB #B612315

      Date Announced:
      NOV 01, 2020
      NHTSA ID:
      #10184584

      Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full: Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full.There are no faults stored in the system for the washer fluid level switch. Read More »

    VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

    • TSB #B640422

      Date Announced:
      SEP 01, 2022
      NHTSA ID:
      #10225121

      An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in the center of the instrument panel. Read More »

    AIR BAGS

    • TSB #B650414

      Date Announced:
      OCT 01, 2022
      NHTSA ID:
      #10227568

      According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 - Seat occupancy detection, front passenger; malfunction" is stored. Read More »

    • TSB #B513016

      Date Announced:
      APR 01, 2020
      NHTSA ID:
      #10174015

      TAILGATE UNINTENTIONALLY OPENS: This Service Information Bulletin (Revision 4) replaces SI B51 30 16 dated March 2018. Read More »

    STRUCTURE:FRAME AND MEMBERS

    • TSB #B513316

      Date Announced:
      JUN 01, 2021
      NHTSA ID:
      #10200233

      Water sloshing noises coming from the rear passenger compartment (left or right) while driving Water ingress in the luggage compartment, or in the rear passenger compartment- rear seat bench rear passenger compartment foot well rear ... Read More »

    STRUCTURE:BODY

    • TSB #B513316

      Date Announced:
      JUN 01, 2021
      NHTSA ID:
      #10200233

      Water sloshing noises coming from the rear passenger compartment (left or right) while driving Water ingress in the luggage compartment, or in the rear passenger compartment- rear seat bench rear passenger compartment foot well rear ... Read More »

    STRUCTURE:BODY:DOOR

    • TSB #B513218

      Date Announced:
      NOV 01, 2020
      NHTSA ID:
      #10184578

      PAINT ON THE B-PILLAR IS SCRATCHED/DAMAGED: The paint finish of the door jamb (above the door striker) is scratched due to the inner door cavity window seal. Read More »

    STRUCTURE:BODY:TAILGATE

    • TSB #B514616

      Date Announced:
      MAY 01, 2023
      NHTSA ID:
      #10238081

      Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator. Read More »

    LATCHES/LOCKS/LINKAGES:DOORS:LOCK

    • TSB #SIB612219

      Date Announced:
      AUG 01, 2022
      NHTSA ID:
      #10224592

      When using Comfort Access 2.0 feature Lock when walking away, the vehicle locks itself even though the remote control/display key is inside the vehicle. Read More »

    LATCHES/LOCKS/LINKAGES:TRUNK LID:LATCH

    • TSB #B511314

      Date Announced:
      SEP 01, 2021
      NHTSA ID:
      #10203338

      The trunk lid/hatch does not open fully when unlatched with remote or hands-free operation. Read More »

    WHEELS:LUGS/NUTS/BOLTS/STUDS

    • TSB #B340515

      Date Announced:
      NOV 01, 2020
      NHTSA ID:
      #10184575

      TICKING NOISE FROM THE FRONT AXLE WHEN CORNERING: The customer may complain of a metallic ticking noise from the front axle, when cornering, maneuvering, parking or pulling away from a parking space. Read More »

    SEATS

    • TSB #B513316

      Date Announced:
      JUN 01, 2021
      NHTSA ID:
      #10200233

      Water sloshing noises coming from the rear passenger compartment (left or right) while driving Water ingress in the luggage compartment, or in the rear passenger compartment- rear seat bench rear passenger compartment foot well rear ... Read More »

    SEATS:BARRIERS

    • TSB #B650414

      Date Announced:
      OCT 01, 2022
      NHTSA ID:
      #10227568

      According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 - Seat occupancy detection, front passenger; malfunction" is stored. Read More »

    LANE DEPARTURE

    • TSB #B650414

      Date Announced:
      OCT 01, 2022
      NHTSA ID:
      #10227568

      According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 - Seat occupancy detection, front passenger; malfunction" is stored. Read More »

    BACK OVER PREVENTION

    • TSB #B650414

      Date Announced:
      OCT 01, 2022
      NHTSA ID:
      #10227568

      According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 - Seat occupancy detection, front passenger; malfunction" is stored. Read More »

    COMMUNICATION:MANUFACTURER TELEMATICS

    • TSB #B840221

      Date Announced:
      JUN 01, 2021
      NHTSA ID:
      #10200249

      The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting February 2022. Read More »

    EQUIPMENT

    • TSB #B840822

      Date Announced:
      MAR 01, 2023
      NHTSA ID:
      #10235205

      The 3G network in the US has been shut down. This means that only the 4G network will be available. In the 4G network, voice calls will be transferred via the Voice over LTE (VoLTE) function. Read More »

    • TSB #SIB662419

      Date Announced:
      JUN 01, 2022
      NHTSA ID:
      #10218384

      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. Read More »

    • TSB #B120321

      Date Announced:
      JUN 01, 2021
      NHTSA ID:
      #10200230

      Due to an software error, the adaptation values of the actuator contiguous wheel slip limitation (ARB) may be lost. Read More »

    • TSB #B840221

      Date Announced:
      JUN 01, 2021
      NHTSA ID:
      #10200249

      The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting February 2022. Read More »

    • TSB #B360121

      Date Announced:
      APR 01, 2021
      NHTSA ID:
      #10194298

      Diagnosis of Compound Brake System Complaints in M Vehicles: 1. Visible cracks are caused by high thermal stresses during rapid heating and cooling of the brake discs. Read More »

    • TSB #B640613

      Date Announced:
      DEC 01, 2020
      NHTSA ID:
      #10186227

      ?A/C COOLING INTERMITTENT REDUCTION OF AIR FLOW: Customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than 30 minutes. The evaporator starts to freeze up. Read More »

    • TSB #B640613

      Date Announced:
      DEC 01, 2020
      NHTSA ID:
      #10186889

      ?A/C COOLING INTERMITTENT REDUCTION OF AIR FLOW: Customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than 30 minutes. The evaporator starts to freeze up. Read More »

    • TSB #B340515

      Date Announced:
      NOV 01, 2020
      NHTSA ID:
      #10184575

      TICKING NOISE FROM THE FRONT AXLE WHEN CORNERING: The customer may complain of a metallic ticking noise from the front axle, when cornering, maneuvering, parking or pulling away from a parking space. Read More »

    • TSB #B513218

      Date Announced:
      NOV 01, 2020
      NHTSA ID:
      #10184578

      PAINT ON THE B-PILLAR IS SCRATCHED/DAMAGED: The paint finish of the door jamb (above the door striker) is scratched due to the inner door cavity window seal. Read More »

    • TSB #B612315

      Date Announced:
      NOV 01, 2020
      NHTSA ID:
      #10184584

      Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full: Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full.There are no faults stored in the system for the washer fluid level switch. Read More »

    • TSB #B840416

      Date Announced:
      JAN 01, 2020
      NHTSA ID:
      #10171504

      SOS MALFUNCTION DISPLAYED This Service Information Bulletin (Revision 1) replaces SI B84 04 16 dated September 2016. Read More »

    EQUIPMENT:ELECTRICAL

    • TSB #B662419

      Date Announced:
      SEP 01, 2022
      NHTSA ID:
      #10225126

      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. Read More »

    • TSB #B640613

      Date Announced:
      NOV 01, 2021
      NHTSA ID:
      #10205068

      Customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than 30 minutes. Read More »

    • TSB #B840121

      Date Announced:
      MAY 01, 2021
      NHTSA ID:
      #10200487

      TELEMATICS UNIT DEACTIVATION DUE TO 3G CELLULAR TECHNOLOGY DISCONTINUATION: The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network ... Read More »

    • TSB #B840221

      Date Announced:
      MAY 01, 2021
      NHTSA ID:
      #10200489

      TELEMATICS UNIT RETROFIT TO 4G CELLULAR TECHNOLOGY: The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting February ... Read More »

    EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

    • TSB #B651312

      Date Announced:
      SEP 01, 2021
      NHTSA ID:
      #10204660

      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. Read More »

    • TSB #B652214

      Date Announced:
      APR 01, 2020
      NHTSA ID:
      #10174032

      AUTOMATED ACTIVATION OF NAVIGATION SYSTEM DURING PDI/QC1: This Service Information Bulletin (Revision 2) replaces SI B65 22 14 dated October 2015. Read More »

    EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

    • TSB #B58N20N55S55

      Date Announced:
      APR 01, 2022
      NHTSA ID:
      #10212779

      Component and Issue Specific Limited Emission Warranty Extension. This component-specific limited emission warranty extension applies to defects in materials or workmanship. Read More »

    EQUIPMENT ADAPTIVE/MOBILITY

    • TSB #B120321

      Date Announced:
      JUN 01, 2021
      NHTSA ID:
      #10200230

      Due to an software error, the adaptation values of the actuator contiguous wheel slip limitation (ARB) may be lost. Read More »

    • TSB #B840221

      Date Announced:
      JUN 01, 2021
      NHTSA ID:
      #10200249

      The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting February 2022. Read More »

    • TSB #B360121

      Date Announced:
      APR 01, 2021
      NHTSA ID:
      #10194298

      Diagnosis of Compound Brake System Complaints in M Vehicles: 1. Visible cracks are caused by high thermal stresses during rapid heating and cooling of the brake discs. Read More »

    • TSB #B340515

      Date Announced:
      NOV 01, 2020
      NHTSA ID:
      #10184575

      TICKING NOISE FROM THE FRONT AXLE WHEN CORNERING: The customer may complain of a metallic ticking noise from the front axle, when cornering, maneuvering, parking or pulling away from a parking space. Read More »

    • TSB #B513218

      Date Announced:
      NOV 01, 2020
      NHTSA ID:
      #10184578

      PAINT ON THE B-PILLAR IS SCRATCHED/DAMAGED: The paint finish of the door jamb (above the door striker) is scratched due to the inner door cavity window seal. Read More »

    • TSB #B840214

      Date Announced:
      APR 01, 2020
      NHTSA ID:
      #10174320

      CONNECTEDDRIVE/BMW ASSIST SYSTEM DIAGNOSIS INFORMATION: This Service Information Bulletin (Revision 7) replaces SI B84 02 14 dated May 2019. ConnectedDrive/BMW Assist features are partially or completely inoperative. Read More »

    EQUIPMENT:APPLIANCE:AIR CONDITIONER

    • TSB #B640613

      Date Announced:
      DEC 01, 2020
      NHTSA ID:
      #10186227

      ?A/C COOLING INTERMITTENT REDUCTION OF AIR FLOW: Customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than 30 minutes. The evaporator starts to freeze up. Read More »

    UNKNOWN OR OTHER

    • TSB #B650414

      Date Announced:
      OCT 01, 2022
      NHTSA ID:
      #10227568

      According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 - Seat occupancy detection, front passenger; malfunction" is stored. Read More »