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Service bulletin A2121372044640_1

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 id10200746
Published by NHTSA2021-09-02
Manufacturer's numberA2121372044640_1
Manufacturer's date2021-08-31
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This bulletin contains repair instructions for when the engine cannot be started or it is difficult, there is unusual noises when accelerating and/or there is reduced engine performance.

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

Engine

Vehicles listed
AUDI A82013, 2014, 2015, 2016, 2017
AUDI RS 72014, 2015, 2016, 2017
AUDI S62013, 2014, 2015, 2016, 2017
AUDI S72013, 2014, 2015, 2016, 2017
AUDI S82013, 2014, 2015, 2016, 2017
AUDI S8 PLUS2016 to 2017

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

Recalls for the same vehicles and component
20221332022-03-23. Engine
22V1780002022-03-23. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
16V6190002016-08-24. ENGINE AND ENGINE COOLING:ENGINE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
TSB_2082323_12026-07-07. Service bulletin. This bulletin provides informaiton when the engine is not running smoothly, misfiring.
TSB_2074640_32026-07-07. Service bulletin. This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
TSB_2073867_32026-07-07. Service bulletin. This bulletin provides information when DTC U140A00 Terminal 30 is stored in the ECM.
TSB_2051095_102026-03-03. Service bulletin. This bulletin provides information on the use of the Audi frequencly analysis app, and where the application can be downloaded.
TSB_2021205_102026-03-03. Service bulletin. This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
TSB_2060750_52026-02-06. Service bulletin. This bulletin provides information regarding UV leak additive for finding oil leaks.
TSB_2074640_22026-01-07. Service bulletin. This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
TSB_2080166_12025-12-05. Service bulletin. This bulleti provides information when the fuel pressure is outside of tolerance, MIL is on, DTC P310B00.
TSB_2073867_22025-06-03. Service bulletin. This bulletin provides information when DTC U14A00 Terminal 30 is stored in the ECM.
TSB_2075530_22025-04-04. Service bulletin. This bulletin provides informatin when the engine does not run smoothly at idling speeds.