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Service bulletin A401439 2035854-

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 id10125545
Published by NHTSA2017-12-14
Manufacturer's numberA401439 2035854-
Manufacturer's date2014-02-13
NHTSA componentEQUIPMENT

NHTSA's summary

Supersedes Technical Service Bulletin Group 40 number 13-37 dated December 3, 2013. A rattling or knocking noise is heard when the car is driven over bumps or uneven road surfaces. This noise is heard after the car has been driven for a while and is warmed up, and when the temperature outside is warm. This condition can be duplicated if the brakes are applied while the car is being driven over bumpy roads. This condition is a comfort concern. Vehicle handling is not affected. High ambient temperatures at the hydraulic guide links 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

Equipment and accessories

Vehicles listed
AUDI A42009, 2010
AUDI A4 ALLROAD2013, 2014
AUDI A4 AVANT2011 to 2012
AUDI A52008, 2009, 2010, 2011, 2012, 2013
AUDI A5 CABRIOLET2010 to 2014
AUDI Q52009, 2010, 2011, 2012, 2013, 2014

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

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