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Service bulletin A4821002061904_2

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 id10193225
Published by NHTSA2021-06-03
Manufacturer's numberA4821002061904_2
Manufacturer's date2021-05-04
NHTSA componentSTEERING:STEERING CONTROL MODULE

NHTSA's summary

This bulletin contains repair instruction for when DTC C110DF0 is stored and the yellow steering lamp is on.

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

Steering

Trouble codes named

C110D

Vehicles listed
AUDI A42017, 2018, 2019, 2020, 2021
AUDI A52018, 2019, 2020, 2021
AUDI A5 CABRIOLET2018 to 2021
AUDI A62019, 2020, 2021
AUDI A6 ALLROAD2020, 2021
AUDI A72019, 2020, 2021
AUDI A82018, 2019, 2020
AUDI A82021
AUDI ALLROAD2017 to 2021
AUDI AUDI
AUDI RS 52018, 2019
AUDI RS 52020
AUDI RS 52021
AUDI RS 72021
AUDI RS72020
AUDI S42017
AUDI S42018, 2019, 2020, 2021
AUDI S52018, 2019, 2020, 2021
AUDI S5 CABRIOLET2018 to 2021
AUDI S62020, 2021
AUDI S72020, 2021
AUDI S82018
AUDI S82019
AUDI S82020, 2021

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_2074846_52026-10-05. Service bulletin. This bulletin provides information about vibrations and rotational steering vibrations.
TSB_2065871_42026-10-05. Service bulletin. This bulletin provides informaiton when DTC B200FF0 is stored.
TSB_2063546_52026-09-04. Service bulletin. This bulletin provides service infomraiton regardin gthe identifaction of noises with dynamic steering.
TSB_2063528_52026-09-04. Service bulletin. This bulletin provides service information when thre are engine noises in the vehicle interior.
TSB_2074846_42026-02-06. Service bulletin. This bulletin provides information about vibrations and rotational steering vibrations.
TSB_2028220_132026-01-07. Service bulletin. This bulletin provides regarding visual damage for all vehicles.
TSB_2074846_32025-11-08. Service bulletin. This TSB provides information regarding rotational and other steerihng wheel vibrations.
TSB_2075199_22025-10-03. Service bulletin. This bulletin provides information when there is a prompt to take over steering; hands off detection.
TSB_2061904_72025-06-03. Service bulletin. This TSB provides information when the warning message "Steering lock for active steering failed" appears.
SM 26-20252025-05-03. Other. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.