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Service bulletin B330318

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10153753
Published by NHTSA2019-02-25
Manufacturer's numberB330318
Manufacturer's date2019-01-01
NHTSA componentPOWER TRAIN:AXLE ASSEMBLY; SUSPENSION:REAR; WHEELS

NHTSA's summary

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 document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Suspension, Transmission and driveline, Wheels, Axle

Vehicles listed
BMW M22016, 2017, 2018
BMW M32015, 2016, 2017
BMW M42015, 2016, 2017, 2018

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
B3409212021-11-08. Service bulletin. A turbine-like noise can be heard from the rear axle while deceleration during the first 300 miles of operationwhen braking from low speed.
B3408142018-11-05. Service bulletin. Ticking Noise from Front Axle When Cornering. The customer may complain of a ticking noise from the front axle when cornering, maneuvering, parking or pulling away from a parking space. The noise can be heard as a light metallic ticking from the front outer cornering wheel. Movement between the brake disc and wheel bearing hub.
B3103182018-10-09. Service bulletin. CRACKING NOISE FROM FRONT OF VEHICLE WHILE TURNING OR PARKING: Cracking noises heard from the area of the front axle when rotating the steering while stationary or at low speed.
B3101122018-07-16. Service bulletin. CRACKING NOISES FROM THE FRONT AXLE AREA WHILE TURNING THE WHEELS, WHEN STATIONARY OR PARKING: Cracking noises are heard from the front axle area while maneuvering at low speeds (e.g., parking lot maneuvers) or when turning the steering wheel while stationary.