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Service bulletin A401548 2042603-

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 id10123657
Published by NHTSA2017-11-17
Manufacturer's numberA401548 2042603-
Manufacturer's date2015-12-04
NHTSA componentSTEERING

NHTSA's summary

When the vehicle is driven between 35 mph and 75 mph, a noise can be heard in the front of the vehicle. The customer may say that the noise is coming from the steering column area, and may describe the sound as buzzing, humming, whistling, whining, grinding, howling, and/or droning. The best way to understand the complaint is to discuss it with the customer. Faulty wheel bearing(s) may cause the noise.

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

Steering

Vehicles listed
AUDI A42009, 2010
AUDI A4 ALLROAD2013, 2014, 2015, 2016
AUDI A4 AVANT2011 to 2012
AUDI A52009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
AUDI A5 CABRIOLET2009 to 2015
AUDI A62012, 2013, 2014, 2015, 2016
AUDI A72012, 2013, 2014, 2015, 2016
AUDI A82011, 2012, 2013, 2014, 2015, 2016
AUDI Q52009, 2010, 2011, 2012, 2013, 2014, 2015, 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
TSB_2074846_52026-10-05. Service bulletin. This bulletin provides information about vibrations and rotational steering vibrations.
TSB_2063546_52026-09-04. Service bulletin. This bulletin provides service infomraiton regardin gthe identifaction of noises with dynamic steering.
TSB_2074846_42026-02-06. Service bulletin. This bulletin provides information about vibrations and rotational steering vibrations.
TSB_2028220_132026-01-07. Service bulletin. This bulletin provides regarding visual damage for all vehicles.
TSB_2074846_32025-11-08. Service bulletin. This TSB provides information regarding rotational and other steerihng wheel vibrations.
TSB_2075199_22025-10-03. Service bulletin. This bulletin provides information when there is a prompt to take over steering; hands off detection.
A4824732075199_12024-10-28. Service bulletin. This bulletin provides information when there is a prompt to take over steering; hands off detection.
A4424082074846_22024-10-28. Service bulletin. This bulletin provides information when there are vibrations and rotational steering wheel vibrations.
A4824642063546_42024-04-04. Service bulletin. This bulletin provides information on the identification of noises in the dynamic steering.
A9424742073332_12024-04-04. Service bulletin. This bulletin provides information if there is noise when steering the vehicle.