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Service bulletins for the 2019 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.

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

By type

By component

By trouble code

Bulletins, newest first
A911936 2053916-2019-04-01. Service bulletin. EQUIPMENT. This informational bulletin contains instructions for when a non-plus sized iPhone heats up while wirelessly charging and the CarPlay screen may appear frozen.
A481977 2053869-2019-04-01. Service bulletin. STEERING; EQUIPMENT. This bulletin contains repair instructions for when DTC B145504 with symptom code 7340800.
A151933 2053278-2019-04-01. Service bulletin. ENGINE. This bulletin contains repair instructions for 3.0 and 2.9 TFSI engines that have oil loss around the engine compartment, front end, and underbody.
Audi MY 2019 2012019-04-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. e-tron added
2019 A4-S4-allro2019-04-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. REMINDERS SECTION: ADDED "certified" to Audi Technician POST ROAD TEST SECTION: ADDED: "30 Day" to Inventory Maintenance Sticker
Audi MY 2019 2012019-04-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; TIRES. ADDED to footnote (b at the end of the chart: "If vehicle has a top speed of 174 mph, it has the Dynamic Plus Package which can be identified by PR Code PAB"
2019 A4-S4-allro2019-04-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. Select Owner Priorities section: All items replaced. Infotainment Section: REMOVED: Audi music interfacce with two USB ports. Sign-off Section: CHANGED: "Second Delivery" to "New Vehicle Orientation"
A921916 20381512019-04-01. Service bulletin. EQUIPMENT; VISIBILITY:REAR WINDOW WIPER/WASHER. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct.
A911929 20535982019-04-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains instructions for MIB2 Standard on how to update the MMI.
A911928 20517202019-04-01. Service bulletin. EQUIPMENT. This bulletin contains instructions for submitting a customer registration form for the Audi phone box to the customer's Mobile Network Operator.
A461903 20341812019-04-01. Service bulletin. SERVICE BRAKES. This technical service bulletin provides troubleshooting for brake noise.
A441969 20225632019-04-01. Service bulletin. SUSPENSION. This bulletin provides information regarding vibrations or movement that are felt in the wheel.
SM 44-2017 EN2019-04-01. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return all part numbers listed in the document and order the superseded part numbers going forward.
Tire Pressure Ta2019-02-25. Service bulletin. TIRES; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. ADDED: TT, TTS, TT RS tire pressures
A001814 2045316-2019-02-19. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains information about the Start/Stop system.
A511711 2009967-2019-02-19. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains instructions for vehicle inspection, protection removal, and detailing.
Tire Pressure Ta2018-11-26. Service bulletin. EQUIPMENT. New Document
TECHNICIAN REPOR2018-11-26. Service bulletin. EQUIPMENT. New document
Technician Refer2018-11-26. Service bulletin. EQUIPMENT. Pre-delivery Inspection
PDI VEHICLE COND2018-11-26. Service bulletin. EQUIPMENT. Audi Vehicle Condition report
PDI DETAIL REPOR2018-11-26. Service bulletin. EQUIPMENT. Audi Vehicle Detail Report
CUSTOMER DELIVER2018-11-26. Service bulletin. EQUIPMENT. Audi Delivery Guidelines
A9118972018-09-24. Service bulletin. EQUIPMENT. This bulletin contains instructions for when the customer loses audio for the radio after ending an incoming phone call.
A4318292018-09-24. Service bulletin. EQUIPMENT. This bulletin contains repair instructions for DTC B200FF0.
A431829 2051336-2018-09-17. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains repair instructions for DTC B200FF0.

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