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Service bulletin AWA 21-04

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 id10190999
Published by NHTSA2021-05-06
Manufacturer's numberAWA 21-04
Manufacturer's date2021-04-22
NHTSA componentEQUIPMENT

NHTSA's summary

This Document informs dealers on the new turbo warranty extension for 2013-2016 A4, 2013-2017 A5/Q5, and 2012-2015 A6 vehicles

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 A42013, 2014, 2015, 2016
AUDI A52013, 2014, 2015, 2016, 2017
AUDI A5 CABRIOLET2013 to 2017
AUDI A62012, 2013, 2014, 2015
AUDI ALLROAD2013 to 2016
AUDI Q52013, 2014, 2015, 2016, 2017

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
A6-S6-A2024-04-22. Service bulletin. Audi Delivery Guidelines.
A6-S62024-04-22. Service bulletin. Audi Delivery Guidelines.
A5-S52024-04-22. Service bulletin. Audi Delivery Guidelines.
A5-S5-Coupe2024-04-22. Service bulletin. Audi Delivery Guidelines.
A4-S42024-04-22. Service bulletin. Audi Delivery Guidelines.
SM 21-20242024-04-05. Service bulletin. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
SM 19-20242024-04-05. Service bulletin. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
SM 17-20242024-04-05. Service bulletin. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
A0024842073507_12024-04-04. Service bulletin. This bulletin provides instructions on evaluating TDI vehicles for repurchase prior to repairs.
A9124632044694_32024-03-06. Service bulletin. This bulletin provides information pertaining to MMI Navigation database concerns.