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.
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
?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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
?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 »
?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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
AUTOMATED ACTIVATION OF NAVIGATION SYSTEM DURING PDI/QC1: This Service Information Bulletin (Revision 2) replaces SI B65 22 14 dated October 2015. Read More »
Component and Issue Specific Limited Emission Warranty Extension. This component-specific limited emission warranty extension applies to defects in materials or workmanship. Read More »
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 »
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 »
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 »
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 »
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 »
?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 »
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 »
