Service bulletins for the 2018 BMW M4
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
135 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Wheels are shown. Show all
| B340515 | 2020-12-21. Service bulletin. WHEELS:LUGS/NUTS/BOLTS/STUDS; EQUIPMENT; SUSPENSION; EQUIPMENT ADAPTIVE/MOBILITY. 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. |
|---|---|
| B330318 | 2019-02-25. Service bulletin. POWER TRAIN:AXLE ASSEMBLY; SUSPENSION:REAR; WHEELS. KNOCKING NOISE OR VIBRATION/DRONING NOISE FROM THE REAR AXLE. A hard knocking noise is heard from the rear axle area during load reversals. The tuning of the rear suspension mount for the differential. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.