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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: Electrical system are shown. Show all

Bulletins, newest first
TSB_2065234_22025-10-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there is a tail light warning and variois DTCs are stored in the comfort module; B16D431, B16D631, B16D531, and/or B16D731.
TSB_2061976_42025-09-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information for wire harness repairs and documentation.
TSB_2061028_82025-09-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there are no services in the MMI and the SOS LED does not turn green after PDI.
TSB_2078437_12025-08-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the MIB3 restarts by itself, or fails.
TSB_2070020_62025-08-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the Audi virtual cockpit display has semi-circular marks on edges of the display.
TSB_2061028_72025-08-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there are no services in the MMI and the SOS LED does not turn green after PDI.
TSB_2027368_72025-08-05. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when the Audi advanced key is inoperative; door handle touch sensors.
TSB_2010353_62025-08-05. Service bulletin. ELECTRICAL SYSTEM. This TSB provides informatin when the cigarette lighter element does not eject, or the cigarette lighter is inoperable.
TSB_2065817_52025-07-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when Key User pariing is not possible, or the myAudi login cannot be completed in the vehicle.
TSB_2074855_32025-07-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the calendar function is not available.
TSB_2069331_52025-07-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when thre is a warning in the instrument cluster: "Instrument cluster: fault. Limited warning messages. Please contact workshop"; B200096.
TSB_2065960_52025-06-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the display of the Audi virtual cockpit is distorted due to a broken screen.
TSB_2059891_92025-06-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the restricted function icon for Audi pre sense is displayed after engine starts.
TSB_2056019_42025-06-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the anti-theft alarm activates for no reason, or when the anti-theft alarm does not activate.
TSB_2060523_42025-05-03. Service bulletin. ELECTRICAL SYSTEM. This TSB provides MIB3 Software update instructions.
TSB_2077631_12025-05-03. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when the message "Engine/power nt start system: fault. Please contact workshop" appears; DTC B143C29.
TSB_2071281_32025-05-03. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when the warning "Fault: Limited warning messages" appears in the virtual cockpit; DTC B174404.
TSB_2012749_182025-05-03. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when the exterior lights have moisture accumulation.
TSB_2062115_142025-05-03. Service bulletin. ELECTRICAL SYSTEM. This bulliten provides information on reinstaling the navigation database.
TSB_2077364_12025-04-04. Service bulletin. ELECTRICAL SYSTEM. This TSB provides troubelshooting steps when the myAuid login can not be completed in the infotainment system
TSB_2077204_12025-04-04. Service bulletin. ELECTRICAL SYSTEM. This bulleitn provides information regarding Over The Air automatic online map update complaints.
TSB_2077148_12025-04-04. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when home address, work address and favorites are deleted.
TSB_2056076_222025-04-04. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information when there is an SOS Malfunction with ConBox Low, "Emergency call function: fault", (DTC U142100, U153E00).
TSB-2062115_132025-03-19. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides instructions on reinstalling the Navigation Database in vehcles with MiB3.
A5325102043016_42025-02-05. Service bulletin. ELECTRICAL SYSTEM. This TSB provides information when there are visible wires in the interior.

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