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SIB 64 09 21: Air conditioning rattle

Air conditioning rattle on BMW G05/G20/G21/G02 and other models (2006–2023); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10225122 · Sep 2022 · also written SI B64 09 21, B640921

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.

A rattling noise may also be heard coming from the electrical coolant condenser (EKMV).

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 64 09 21
Also written: SI B64 09 21, B640921, 64 09 21, SIB-64-09-21, SI B640921
NHTSA ID10214265, 10218380, 10225122 (revisions)
Document IDs filedB640921, SIB640921
TypeService bulletin
Date (first filed Apr 2022)
Models330e, 330i, M340i, X4, X5, X5 hybrid, X6, X6 M, X7, XB7, Z4
Model years2006–2023
ChassisG05, G20, G21, G02, G06, G07, G29, E46, E90, E91, E92, E93, F16, F30, F31, F34, F86, F96, F98
EnginesB46/B48, B58, M54, N52, N55, N57, N63, S58, S63
Component (NHTSA)Electrical System
Engine And Engine Cooling
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.