KNOCKING NOISE OR VIBRATION/DRONING NOISE FROM THE REAR AXLE. 1 A hard knocking noise is heard from the...
BMW technical service bulletin B330318 for 2015-2017 BMW M3, 2015-2018 BMW M4 and 2016-2018 BMW M2.
- Bulletin number
- B330318
- Component
- Suspension
- Summary
- KNOCKING NOISE OR VIBRATION/DRONING NOISE FROM THE REAR AXLE. 1 A hard knocking noise is heard from the rear axle area during load reversals. 2 A humming/droning noise is heard with vibration during partial to full engine load in higher gears. The tuning of the rear suspension mount for the differential.
Owners of these vehicles have filed 8 complaints in the suspension category.
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