TSB DC-20210928 — Audi Service bulletin

DC-20210928 is a service bulletin on file with NHTSA for 2 Audi models, 2006–2007 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. Dealer Communication - Vehicle Sales Reporting, Reinstatement, and Audit Policy Update - Effective September 30, 2021

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
2Vehicles named
2Model years

Vehicles and model years DC-20210928 names

VehicleModel years
Audi A4 2006
Audi Q7 2007

Every document filed under DC-20210928

Document IDFiledType
DC 20210928 September 28, 2021 Service bulletin
← All Audi A4 TSB years TSB lookup by model

Questions buyers ask

What is TSB DC-20210928?

DC-20210928 is a service bulletin filed with NHTSA by Audi, covering 2 Audi models across the 2006–2007 model years. NHTSA's summary reads: Dealer Communication - Vehicle Sales Reporting, Reinstatement, and Audit Policy Update - Effective September 30, 2021

Which vehicles does DC-20210928 cover?

NHTSA's file names Audi A4 (2006); Audi Q7 (2007). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB DC-20210928 a recall, and is the repair free?

No. DC-20210928 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of DC-20210928?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under DC-20210928, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under DC-20210928. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.