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Service bulletin A6421782062828_1

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 id10190281
Published by NHTSA2021-05-06
Manufacturer's numberA6421782062828_1
Manufacturer's date2021-04-02
NHTSA componentVISIBILITY

NHTSA's summary

This bulletin states to not perform any repairs for milky or cloudy windows.

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

Glass, wipers and mirrors

Vehicles listed
AUDI Q72017, 2018, 2019, 2020, 2021
AUDI Q82019, 2020, 2021
AUDI RS Q82020, 2021
AUDI SQ72020, 2021
AUDI SQ82020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20257132025-12-19. Visual System
20225652022-10-05. Visual System

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
TSB_2020552_152026-10-05. Service bulletin. This bulletin provides service information regarding exterior glass cleaning.
TSB_20741717_152026-09-04. Service bulletin. This bulletin provides information on the GFF test plan required for AC compressor replacements regardless of the concern.
TSB_2067557_22026-06-04. Service bulletin. This bulletin provides informaiton when the windscreen/rear window washer pump is not working (B126101, B126113).
TSB_2067716_32026-02-06. Service bulletin. This bulletin provides information when the air conditioner is not working, or has a restricted function; leak at the O-ring.
TSB_2071139_52025-12-05. Service bulletin. This bulletin provides information when it is not possible to adjust the blower setting; MIB3.
TSB_2041717_142025-10-03. Service bulletin. This bujlletin provides information regarding the GFF test plan required for A/C compressor replacements regardless of the concern.
TSB_2061922_42025-05-03. Service bulletin. This TSB provides information on proper documentation for visual complaints regarding the headlights and taillights.
TSB_2041717_132025-04-04. Service bulletin. This bulletin provides information regarding the GFF test plan required for A/C compressr replaements regardless of the concern.
A9224402065963_32024-09-06. Service bulletin. This bulletin provides information on repairing the corrugated hose for the windshield washer system.
A9224402065963_32024-09-06. Service bulletin. This bulletin provides information on repairing the corrugated hose for the windshield washer system.