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Service bulletin A911523 2042374-

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10128187
Published by NHTSA2018-02-05
Manufacturer's numberA911523 2042374-
Manufacturer's date2015-11-06
NHTSA componentENGINE; BACK OVER PREVENTION

NHTSA's summary

The customer complains of an engine droning noise or rattle noise when the engine speed is approximately 3,500 to 4,000 rpm. (Vehicle speed does not affect the noise; the vehicle can be stationary.) The source of the noise seems to be from somewhere near the windshield or inside the dash panel area. The noise is more noticeable when Audi drive select is set to dynamic mode. No DTCs are stored.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Driver assistance, Engine, Backup camera

Vehicles listed
AUDI S32015, 2016

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
A911582 2029903-2017-10-21. Service bulletin. Supersedes Technical Service Bulletin Group 91 number 12-42 dated June 20, 2012. The customer complains about the picture quality of rearview backup camera image in the MMI screen. The picture is fuzzy or distorted. The picture looks too bright, too dark, or opaque in certain areas of the image. The colors of the objects in the image are incorrect or slightly off. The guidelines used for parking are fuzzy, distorted, or pixelated when compared with the guidelines displayed on another vehicle?s MMI.