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SIB 64 01 14: Air conditioning noise

Air conditioning noise on BMW E90/E92/E93/F30 and other models (2012–2015); BMW explains the cause and the approved repair.

BMW service bulletin · NHTSA ID 10147979 · Feb 2014 · also written SI B64 01 14, B640114

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.

There is an intermittent whirring noise from the IHKA system when the engine is under load between 2,000 and 3,000 rpm, and sometimes at approximately 5,000 rpm.

NHTSA's summary of this communication (excerpt)

Official document on NHTSA (PDF) →

Details

Bulletin numberSIB 64 01 14
Also written: SI B64 01 14, B640114, 64 01 14, SIB-64-01-14, SI B640114
NHTSA ID10147979
Document IDs filed640114
TypeService bulletin
Date
Models335i, 428i, 435i, ActiveHybrid 3
Model years2012–2015
ChassisE90, E92, E93, F30, F31, F32, F33, F34, F36
EnginesN20, N55
Component (NHTSA)Equipment › Appliance › Air Conditioner
Visibility › Defroster/Defogger/Hvac System

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.

Related bulletins

Before you pay, check the VIN for recalls. Some failures are covered by a safety recall or a BMW warranty extension.

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.

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