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Service bulletin A421422 2038689-

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 id10124887
Published by NHTSA2017-12-05
Manufacturer's numberA421422 2038689-
Manufacturer's date2014-12-10
NHTSA componentSTRUCTURE

NHTSA's summary

Clunking or rattling noises are heard from rear suspension area when vehicle is driven over bumps. These noises can be caused by an improperly seated rear bump stop (which occurs when the rear bump stop was not fully inserted into the rear shock absorber mounting during PDI).

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

Body and frame

Vehicles listed
AUDI A4 ALLROAD2014, 2015, 2016
AUDI A52014, 2015, 2016
AUDI A5 CABRIOLET2014 to 2016
AUDI A62014, 2015, 2016
AUDI A72014, 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_2068999_52026-10-05. Service bulletin. This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases.
TSB_2076945_22026-09-04. Service bulletin. This bulletin provides information about leather care and seat repair.
TSB_2068999_42026-09-04. Service bulletin. This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases.
TSB_2073282_12026-08-05. Service bulletin. This bulletin provides information when there is a film/visible rings on the clear glass cover of the headlight when the dipped beam is switched on.
TSB_2030471_82025-11-08. Service bulletin. This bulletin provides informaiton when the license plate mouting bracket threaded inserts are stripped.
TSB_2020552_142025-11-08. Service bulletin. This bulletin provides guidance for exterior glass cleaning.
TSB_2073747_32025-09-04. Service bulletin. This bulletin provides information for when there are scratches or a coating on the cover of the instrument cluster, or there are particles or insects inside of the housing.
TSB_2042920_32025-09-04. Service bulletin. This bulletin provides information when there is corrosion on the tailpipes.
TSB_2074806_42025-08-05. Service bulletin. This bulletin provides information when there are noises after selecting a gear while the vehicle is idling and stationary, or while driving.
TSB_2074806_32025-06-03. Service bulletin. This bulletin provides information when there are noises after selecting a gear while the vehicle is idling and stationary, or while driving.