2020 BMW M4 technical service bulletins
48 technical service bulletins and manufacturer communications cover the 2020 BMW M4, including one warranty extension.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- The coverage period for qualifying lower rear side panel water drain repair that addresses the issues...
- While driving on a smooth and/or unevenroad, a “cracking” sound is heard from therear wheel arch area...
- While driving on a smooth and/or uneven road, a “cracking” sound is heard from the rear wheel arch area...
- A turbine-like noise can be heard from the rear axle while deceleration during the first 300 miles of...
- The electrical system of BMW vehicles has been subject to an ongoing development process over the last few...
- With the vehicle is on a lift and the front struts are in the extended position, there may be a cracking...
- Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop
- Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator.
- After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes...
- Exterior rear lights do not work.
- The 3G network in the US has been shut down
- According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle...
- An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in...
- Vehicle cannot be opened or closed using comfort access, engine start is not possible, and the vehicle may...
- When using Comfort Access 2.0 feature Lock when walking away, the vehicle locks itself even though the...
- Vehicle cannot be opened or closed using comfort access, engine start is not possible, and the vehicle may...
- The Headunit High (HU-H), also called NBT, began replacing the Car Information Computer (CIC) on certain...
- Cracking noises heard from the area of the front axle when rotating the steering while stationary or at...
- Customer may complain of reduced air flow when the air conditioning system is operated for an extended...
- A turbine-like noise can be heard from the rear axle while deceleration during the first 300 miles of...
- Inform the customer during a consultation that the M Compound (standard equipment) and M Carbon Ceramic...
- The trunk lid/hatch does not open fully when unlatched with remote or hands-free operation.
- Groaning, scraping, or squeaking noise coming from the steering wheel area in the interior of the...
- Due to an software error, the adaptation values of the actuator contiguous wheel slip limitation (ARB) may...
- Water sloshing noises coming from the rear passenger compartment (left or right) while driving Water...
- The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule)...
- Telematics unit deactivation due to 3G cellular technology discontinuation
- Telematics unit retrofit to 4G cellular technology
- Diagnosis of Compound Brake System Complaints in M Vehicles: 1. Visible cracks are caused by high thermal...
- ?A/c cooling intermittent reduction of air flow:
- Ticking noise from the front axle when cornering
- Paint on the b-pillar is scratched/damaged
- Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full: Low Washer Fluid Warning...
- Cracking noises from the frontaxle area while turning the wheels, when station
- Navigation system - reporting missing or incorrect roadmap data
- CCM DISPLAYED "INCREASED BATTERY DRAIN" CAUSED BY CONTROLLER: A yellow CCM (Check Control Message) ID 415...
- Tailgate unintentionally opens
- Ccm displayed "increased battery drain" caused by controller
- Automated activation of navigation system during pdi/QC1
- Connecteddrive/bmw assist system diagnosis information
- CCM DISPLAYED "INCREASED BATTERY DRAIN" CAUSED BY CONTROLLER. A yellow CCM (Check Control Message) ID 415...
- Sos malfunction displayed
- Helpful information for customer discussions regarding motorsport vehicle brakes
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