Vehicle report

2026 BMW M4

Compare every BMW M4 yearNHTSA and EPA records

Service bulletins

3 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

B110126

Service Campaign

Delivery Stop - Bearing Shell

B340925

Service Bulletin/Repair Instructions

There may be an internal leakage in the brake fluid expansion tank (aka brake fluid reservoir). In the rarecase of a leak, the filling level sensor might malfunction over a relatively long period of time.

B840625

Service Bulletin/Repair Instructions

In some situations, an emergency call may be triggered in the vehicle without either the customer pressing the SOS Call button, or an airbag deployment event. In some cases, the customer may not even be inside the vehicle.

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.