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Service bulletins for the 2021 Audi A4 allroad

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.

785 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Body and frame are shown. Show all

Bulletins, newest first
TSB_2078648_42026-10-05. Service bulletin. STRUCTURE:BODY. This bulletin provides information about billing for a broken sunroof glass panel.
TSB_2073860_22026-10-05. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there are stails/marks on the sill panel trim.
TSB_2068999_52026-10-05. Service bulletin. STRUCTURE:BODY. This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases.
TSB_2078648_32026-09-04. Service bulletin. STRUCTURE:BODY. This service information TSB provides warranty coverage information for vehicles with a broken sunroof panel.
TSB_2076945_22026-09-04. Service bulletin. STRUCTURE:BODY. This bulletin provides information about leather care and seat repair.
TSB_2068999_42026-09-04. Service bulletin. STRUCTURE:BODY. This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases.
TSB_2078648_22026-08-05. Service bulletin. STRUCTURE:BODY. This service information TSB provides warranty coverage information for vehicles with a broken sunroof panel.
TSB_2073282_12026-08-05. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there is a film/visible rings on the clear glass cover of the headlight when the dipped beam is switched on.
TSB_2068573_52026-07-07. Service bulletin. STRUCTURE:BODY. This bulletin provides informaoitn when the rear parking sensor sometimes does not work, is loose, or there is a rear parking sensor fault message.
TSB_2074721_32026-06-04. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there is noise from the backrest of the front seat.
TSB_2081402_12026-04-07. Service bulletin. STRUCTURE:BODY. This TSB provides information when there is moisture in footwell, damp smell in passenger compartment.
TSB_2062633_72026-04-07. Service bulletin. STRUCTURE:BODY. This bulleitn provides informaiotn when there are cracking/craking noises during load changes, or sever vehicle body torsion.
TSB_2067558_22026-03-03. Service bulletin. STRUCTURE:BODY. Thisb ulleitn provides informaiton when there are noises when the exterior mirrors fold in/out.
TSB_2030471_82025-11-08. Service bulletin. STRUCTURE:BODY. This bulletin provides informaiton when the license plate mouting bracket threaded inserts are stripped.
TSB_2020552_142025-11-08. Service bulletin. STRUCTURE:BODY. This bulletin provides guidance for exterior glass cleaning.
TSB_2064695_62025-11-08. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there is a complaint abou the easy-entry function.
TSB_2064077_82025-10-03. Service bulletin. STRUCTURE:BODY. This bulletin provides information when the air conditioning cooling output is insufficient; leak on air conditioning system evaporator.
TSB_2062633_52025-10-03. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there is cracking/creaking noises during load changes or severe vehicle body torsion.
TSB_2062633_42025-10-03. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there is cracking/creaking noises during load changes or severe vehicle body torsion.
TSB_2073747_32025-09-04. Service bulletin. STRUCTURE:BODY. This bulletin provides information for when there are scratches or a coating on the cover of the instrument cluster, or there are particles or insects inside of the housing.
TSB_2042920_32025-09-04. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there is corrosion on the tailpipes.
TSB_2076184_22025-09-04. Service bulletin. STRUCTURE:BODY. This bulletin provides information when the front seat makes creaking/squeaking noises.
TSB_2078652_12025-09-04. Service bulletin. STRUCTURE:BODY. This TSB provides service information regarding noises from the sliding sunroof.
TSB_2078648_12025-08-05. Service bulletin. STRUCTURE:BODY. This TSB provides information related to billing regarding billing for a broken sunroof glass panel.
TSB_2074806_42025-08-05. Service bulletin. STRUCTURE:BODY. This bulletin provides information when there are noises after selecting a gear while the vehicle is idling and stationary, or while driving.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.