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SIB 51 14 20: Rattle noise

Rattle noise on BMW G20/G21/F30/F34 models (2019–2020); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10175277 · Apr 2020 · also written SI B51 14 20, B511420

What it covers

A service bulletin tells BMW technicians how to diagnose or fix a known issue. It is not a recall: a repair under a bulletin is normally paid by the owner unless the car is still under warranty or a warranty extension applies.

RATTLE NOISE FROM DASHBOARD CENTER SPEAKER COVER: A rattle noise is present from the dashboard's center speaker cover. This may only occur during phone calls or with certain volumes/tones of music. Interference between the dashboard speaker cover and the dashboard.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 51 14 20
Also written: SI B51 14 20, B511420, 51 14 20, SIB-51-14-20, SI B511420
NHTSA ID10175277
Document IDs filedB511420
TypeService bulletin
Date
Models330i, M340i
Model years2019–2020
ChassisG20, G21, F30, F34
EnginesB46/B48, B58
Component (NHTSA)Equipment

Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.

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Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.