Service bulletins for the 2006 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.
231 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| ELSAallignAudi | 2021-05-06. Service bulletin. ELECTRICAL SYSTEM. Elsa2Go campaign information is now 100% aligned with ElsaPro. This update to Elsa2Go ensures that both systems are displaying the same campaign information, including OPEN/CLOSED status, repair date as well as criterions at the same time without any discrepancy. |
|---|---|
| A4021242016453_4 | 2021-05-06. Service bulletin. SUSPENSION. This bulletin contains instructions for determining if bushings need to be replaced. |
| A5721752022032_9 | 2021-05-06. Service bulletin. LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. This technical service bulletin provides troubleshooting information for the vehicle locking system. |
| A9121862062713_1 | 2021-04-06. Service bulletin. EQUIPMENT. This bulletin contains repair instructions for when there is radio static when the rear heater is active. |
| A462123202258410 | 2021-03-04. Service bulletin. SERVICE BRAKES. This informational bulletin provides diagnostic information for brake conditions. |
| A1721122060750_2 | 2021-03-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for using the UV additive to find engine oil leaks. |
| SM C-2020 | 2021-01-08. Service bulletin. EQUIPMENT. This special notice is to inform dealers to return the part numbers listed (State of California only). |
| A0020362002047_1 | 2020-12-21. Service bulletin. EQUIPMENT:ELECTRICAL. This information bulletin contains instructions for technicans on how to ensure their TAC call goes smoothly. |
| A1720112060750_1 | 2020-11-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION; EQUIPMENT. This bulletin contains instructions for using the UV additive to find engine oil leaks. |
| 21AUTIRECHAINS | 2020-10-06. Service bulletin. TIRES; EQUIPMENT; WHEELS. Added new graphic to reflect where to find MY 21 information |
| Audi Part Labels | 2020-09-03. Service bulletin. EQUIPMENT. Recall Reminder Part Labels |
| TRMMIDOS_Audi | 2020-09-03. Service bulletin. AIR BAGS. In conjunction with the Michigan Department of State, Audi will be sending Takata airbag recall reminder notices to approximately 3,000 Audi owners in the State of Michigan on August 10, 2020. |
| TRMTX_Audi | 2020-08-06. Service bulletin. AIR BAGS. In conjunction with the County of Fort Bend, Audi will be sending Takata airbag recalll reminder notices to approximately 370 Audi owners in the State of Texas on July 28, 2020. |
| TRMTN_Audi | 2020-08-06. Service bulletin. AIR BAGS. In conjunction with the Tennessee DMV, Audi will be sending Takata airbag recall reminder notices to approximately 2,300 Audi owners in the State of Tennessee on July 7, 2020. |
| TRMMRFL_Audi | 2020-07-07. Service bulletin. AIR BAGS. In conjunction with the City of Miramar, Audi sent Takata airbag recall reminder notices to approximately 89 Audi owners in the State of Florida on June 26, 2020. |
| TRMLPCA_Audi | 2020-07-07. Service bulletin. AIR BAGS; EQUIPMENT. In conjunction with the City of La Puente, Audi will be sending Takata airbag recall reminder notices to approximately 45 Audi owners in the State of California on June 22, 2020. |
| A1920042025303_1 | 2020-07-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for identifying and mixing factory fill coolants. |
| A0020382039206_3 | 2020-07-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin contains instructions on how to use the QR code in a TSB. |
| A9120702044694_2 | 2020-06-04. Service bulletin. EQUIPMENT. This technical service bulletin provides troubleshooting for issues with the navigation map database. |
| TK Services_Audi | 2020-05-07. Service bulletin. EQUIPMENT. Effective immediately, TK Services Inc. will resume scheduling part pick-up from dealerships and service centers. |
| A012054201475311 | 2020-05-07. Service bulletin. FUEL SYSTEM, GASOLINE. This bulletin contains instructions for when to add gasoline additives for cleaning the injectors. |
| TRMNEDMV_Audi | 2020-04-02. Service bulletin. AIR BAGS. In conjunction with the Nebraska DMV, Audi will be sending Takata airbag recall reminder notices to approximately 400 Audi owners in the State of Nebraska on March 23, 2020. |
| TKservicesVW | 2020-04-02. Service bulletin. AIR BAGS. Operational Update - Takata Return Parts Pickup |
| A012046201475310 | 2020-04-02. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. This bulletin contains instructions for when to add gasoline additives for cleaning the injectors. |
| TRMOHDMV_Audi | 2020-03-06. Service bulletin. AIR BAGS. In conjunction with the Ohio DMV, Audi will be sending Takata airbag recall reminder notices to approximately 4,900 Audi owners in the State of Ohio on February 10, 2020. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.