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Service bulletin A911930 2053776-

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 id10157245
Published by NHTSA2019-04-08
Manufacturer's numberA911930 2053776-
Manufacturer's date2019-02-01
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

NHTSA's summary

This bulletin contains a software update and test plan for DTC C12EBF1, B200042, or B200047 .

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

Driver assistance, Electrical system, Adaptive cruise control, Software

Trouble codes named

B2000, C12EB

Vehicles listed
AUDI A72019
AUDI A82019
AUDI Q82019

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
SM 13-20262026-04-07. Other. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
A9124032056558_32024-05-06. Service bulletin. This bulletin provides software update instructions for MIB2+.
A9124702062466_42024-03-06. Service bulletin. This bulletin provides information when Apple CarPlay cannot be started using Wi-Fi connection (Wireless CarPlay).
A0023822047812_72024-01-04. Service bulletin. This bulletin provides information on how to set up and use the SD Creator for obtaining vehicle software updates via the Mirror Server.
A0123952067767_62023-12-06. Service bulletin. This Pending Service Solution requests that technicians create a record in the Pending Service Solutions database in instances where the MIL/EPC light is illuminated with various warnings or poor performance; P060C00 is stored.
Dealer 24iY2023-09-01. Service bulletin. Dealer Letter to announce Repair Available – Emissions Service Action 24iY / ECM Software
A9123072064681_32023-07-10. Service bulletin. This bulletin provides information for when wireless charging with the Audi Phone Box does not work.
A2723552058831_82023-06-06. Service bulletin. This bulletin contains a software update for DTC P0CA700 or U046900.
A2723512058831_72023-04-06. Service bulletin. This bulletin contains a software update for DTC P0CA700 or U046900.
A4822362067555_22023-01-06. Service bulletin. This bulletin provides a software update for DTC B200049 with Symptom Code 7353984.