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SIB 65 03 21: Asd interference noise at 3500 RPM

Asd interference noise at 3500 RPM on BMW G22/G23/G26 models (2021); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10190865 · Mar 2021 · also written SI B65 03 21, B650321

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.

ASD INTERFERENCE NOISE AT 3500 RPM: An interference noise can be heard when in Sport Mode and accelerating at high loads at approximately 3500 RPM.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 65 03 21
Also written: SI B65 03 21, B650321, 65 03 21, SIB-65-03-21, SI B650321
NHTSA ID10190865
Document IDs filedB650321
TypeService bulletin
Date
Models430i, M440i
Model years2021
ChassisG22, G23, G26
EnginesB46/B48, B58
Component (NHTSA)Back Over Prevention

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.