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Service bulletin A011526 2041120-

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 id10120746
Published by NHTSA2017-10-25
Manufacturer's numberA011526 2041120-
Manufacturer's date2015-06-30
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

The MIL is on. DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) is stored in the engine control module (ECM), J623 (address word 01). The diagnostic limitations were too narrow.

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

Transmission and driveline, Automatic transmission, Transmission control module

Trouble codes named

P0420, P0430

Vehicles listed
AUDI A62012, 2013, 2014
AUDI A72012, 2013, 2014
AUDI A82012, 2013, 2014
AUDI Q52013, 2014, 2015
AUDI S42011, 2012, 2013, 2014, 2015
AUDI S52011, 2012, 2013, 2014, 2015
AUDI S5 CABRIOLET2014 to 2015

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
37126920311402024-02-20. Service bulletin. Warning message in cluster, no driving mode can be selected - Faults P09140, U040400, U010300 stored in TCM
37J1UPDATE2024-01-22. Service bulletin. TCM Update
Update37H52024-01-22. Service bulletin. Multitronic
Update37J12024-01-22. Service bulletin. Update the TCM software to the latest level with SVM
371431201300252022-11-21. Service bulletin. ATF pan leaks
3714222028985112022-11-21. Service bulletin. Transmission warning message in cluster (P074100 stored in TCM)
371420203627812022-11-21. Service bulletin. Rough downshifts when vehicle is slowed to a stop.
371399202902762022-11-21. Service bulletin. Transmission warning message in cluster.
371397202898592022-11-21. Service bulletin. Transmission warning message in cluster, P074100 stored in TCM
371396202930592022-11-21. Service bulletin. Harsh downshifts when braking or harsh 1-2 upshift under acceleration