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NHTSA 10149440: Mirror noise

Mirror noise on BMW F25 models (2011–2012); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10149440 · Feb 2013

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.

Wind Whistle Noise from the Exterior Rearview Mirror. A whistling wind noise can be heard from either the left or right exterior rearview mirror, especially when traveling at highway speeds. CAUSE An excessive gap exists between the mirror base and acoustic triangular sealing gasket.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberNHTSA 10149440
NHTSA ID10149440
Document IDs filed513111
TypeService bulletin
Date
ModelsX3
Model years2011–2012
ChassisF25
EnginesN20, N47, N52, N55
Component (NHTSA)Visibility

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.