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Service bulletin A6420742020552_9

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 id10175961
Published by NHTSA2020-06-04
Manufacturer's numberA6420742020552_9
Manufacturer's date2020-05-08
NHTSA componentVISIBILITY:WINDSHIELD; EQUIPMENT

NHTSA's summary

This bulletin provides instructions on how to clean exterior glass.

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

Equipment and accessories, Glass, wipers and mirrors, Windshield

Vehicles listed
AUDI A32010, 2011, 2012, 2013
AUDI A32014
AUDI A32015, 2016, 2017, 2018, 2019, 2020
AUDI A32021
AUDI A3 ETRON2015
AUDI A3 SPORTBACK E-TRON2016 to 2018
AUDI A42010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
AUDI A52010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
AUDI A5 CABRIOLET2010 to 2021
AUDI A62010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
AUDI A82010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
AUDI A82021
AUDI E-TRON2019
AUDI E-TRON2020
AUDI E-TRON2021
AUDI Q32015, 2016, 2017, 2018, 2019, 2020, 2021
AUDI Q52010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
AUDI Q82019, 2020, 2021
AUDI R82010, 2011, 2012
AUDI R82013
AUDI R82014, 2015, 2016, 2017, 2018
AUDI R82019
AUDI R82020, 2021
AUDI RS 52018, 2019
AUDI RS 52020
AUDI RS 52021
AUDI RS 5 CABRIOLET2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
AUDI RS Q82020
AUDI RS52010 to 2012
AUDI RS52013, 2014, 2015
AUDI RS52016 to 2017
AUDI RS5 CABRIOLET2016 to 2017
AUDI S32015, 2016, 2017, 2018, 2019, 2020
AUDI S32021
AUDI S42010, 2011, 2012, 2013, 2014, 2015, 2016
AUDI S42017
AUDI S42018, 2019, 2020, 2021
AUDI S52010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
AUDI S62010, 2011
AUDI S62012
AUDI S62013, 2014, 2015, 2016, 2017, 2018
AUDI S62019
AUDI S62020, 2021
AUDI S82010 to 2012
AUDI S82013, 2014, 2015, 2016, 2017, 2018
AUDI S82019
AUDI S82020, 2021
AUDI SQ52018, 2019, 2020
AUDI SQ82020
AUDI TT2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
AUDI TT RS2017
AUDI TT RS2018, 2019, 2020

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
A9023232070020_12023-05-05. Service bulletin. This bulletin provides information for when there are semi-circular marks on the edges of the display glass.
A6423882047061_52023-04-06. Service bulletin. This bulletin describes the process to clean sticker residue from the windshield.
A6423862047061_42023-02-07. Service bulletin. This bulletin provides instructions for when faint images appear on the windshield from the production sticker, or an image of the suction cups used to install the windshield in production.
19A5S5RS5TECHREP2019-05-06. Service bulletin. Vehicle Preparation Section: ADDED: "Verify Audi Phone Box Customer Registration form is present in car and fill out 'Serial Number' field. Check Elsa 'Vehicle Information' Section or location sticker on car. See TSB 2051720 Lighting & Windshield Section: CHANGED: "Test windshield washers (and headlight washers - RS 5 only)" Interior Section: REMOVED: "(if applicable)" from Verify SOS button ADDED: "Verify operation of heated rear seats (if equipped)" CHANGED: Made ventilated seats its own checklist item
19A4S4ALRDTECREP2019-05-06. Service bulletin. Vehicle Preparation Section: ADDED: "Verify Audi Phone Box Customer Registration form is present in car and fill out 'Serial Number'field. Check Elsa 'Vehicle Information' Section or location sticker on car. See TSB 2051720 Lighting and Windshield Section: REMOVED: "(and headlight washers if equipped)" from "Test Front Windsheld Washers" Interior Section: REMOVED: "(if applicable)" from Verify SOS button ADDED: "Verify operation of heated rear seats (if equipped)" CHANGED: Made ventilated seats its own checklist item
A9219192054527_12019-05-06. Service bulletin. This bulletin contains instructions for submitting a PSS for vehicles using an excessive amount of washer fluid.
A911950 204237422019-04-02. Service bulletin. This bulletin contains repair instructions to dampen vibrations in the engine compartment.
A641743 2046397-2019-02-19. Service bulletin. This bulletin provides repair information for a creaking in the front and rear windshield.
A641746 2046397-2018-04-16. Service bulletin. This bulletin provides repair information for a creaking in the front and rear windshield.
Fluid Capacity 72018-02-05. Service bulletin. This document contains the fluid capacity chart.