WenmarOpen by Wenmar Pro

Service bulletins for the 2020 Audi S4

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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
A0022562066297_12022-07-01. Service bulletin. EQUIPMENT. This bulletin describes a reporting program for Audi certified technicians.
A4522262067132_12022-06-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin contains instructions for when the message "Audi pre sense currently restricted. See owner's manual" is displayed in the instrument cluster without DTCs.
A9122942062266_82022-05-05. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin states to create a PSS record when last destinations, favorites, and home/work addresses are sporadically lost.
A9022592063038_22022-05-05. Service bulletin. EQUIPMENT:ELECTRICAL. This informational bulletin explains why the version information pops-up.
A9022572032113_62022-05-05. Service bulletin. EQUIPMENT:ELECTRICAL. This is an informational bulletin containing information about the outside temperature reading.
DC_202203292022-04-05. Service bulletin. EQUIPMENT. Dealer Communication: Vehicle Sales Reporting, Reinstatement, and Audit Policy
A9122932062266_72022-04-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin states to create a PSS record when last destinations, favorites, and home/work addresses are sporadically lost.
A9122922065728_22022-04-05. Service bulletin. EQUIPMENT. This bulletin describes an error which may arise due to a bug in the software of a customer's phone, which causes the Apple CarPlay screen to appear blank, and for audio drop-outs.
A9122892037809_92022-04-05. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This informational bulletin contains instructions about updating the navigation map.
A9122802059528_52022-03-04. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains ODIS instructions for DTC B200096 or B200000 with an SOS malfunction warning displayed in the instrument cluster.
A9022462052299_42022-03-04. Service bulletin. EQUIPMENT. This bulletin contains repair instructions for proper transport mode deactivation (DTC U142100, DTC P169A00, and U13EB00 ).
A4622282051095_52022-03-04. Service bulletin. EQUIPMENT:ELECTRICAL. This informational bulletin contains instructions on how to download and use the Audi Frequency App.
A1922282025303132022-02-04. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. This bulletin contains instructions for identifying and mixing factory fill coolants.
A1922272025303122022-02-04. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT. This bulletin contains instructions for identifying and mixing factory fill coolants.
A9122732064429_22022-02-04. Service bulletin. FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA; EQUIPMENT:ELECTRICAL. This bulletin states to create a PSS record for when the star button is programmed to the front camera views and is lost after a bus sleep cycle.
A9122722059528_42022-02-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains ODIS instructions for DTC B200096 or B200000 with an SOS malfunction warning displayed in the instrument cluster.
A9122712065817_12022-02-04. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides troubleshooting tips for logging in to Audi Connect and Key User Pairing
A9122662065728_12022-02-04. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin describes an error which may arise due to a bug in the software of a customer's phone, which causes the Apple CarPlay screen to appear blank, and for audio drop-outs.
A9122642062266_52022-02-04. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin states to create a PSS provides a workaround to address a concern when last destinations, favorites, and home/work addresses are sporadically lost.
A9122612065488_12022-02-04. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin explains that the HVAC system cannot be operated by using a voice command
A4622272034181192022-02-04. Service bulletin. EQUIPMENT; SERVICE BRAKES; EQUIPMENT ADAPTIVE/MOBILITY. This technical service bulletin provides troubleshooting for brake noise.
A9022332064789_22022-02-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This bulletin describes a condition where the customer may report various LED malfunction indicators are illuminated erroneously due to a hardware defect. Replacing the instrument cluster is recommended.
A9121552062266_42022-01-06. Service bulletin. EQUIPMENT:ELECTRICAL. This bulletin states to create a PSS record when last destinations, favorites, and home/work addresses are sporadically lost.
A5521652062730_22022-01-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin explains why the compartment lid cannot be closed using the buttons on the key sometimes.
A1921262061918_42022-01-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides guidance on diagnosing a coolant light concern with normal coolant level in the tank.

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