Service bulletins for the 2018 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.
796 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| Audi MY 2018 201 | 2019-04-01. Service bulletin. TIRES; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. 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" - A3 2.0L, S3 2.0L, RS 3 2.5L, A3 Cabriolet 2.0L, A3 e-tron Sportback 1.4L, A4 2.0L (190 hp), A4 2.0L (252 hp), S4 3.0L, A4 allroad 2.0L, A5 Cabriolet 2.0L, S5 Cabriolet 3.0L, A5 Coupe 2.0L, S5 Coupe 3.0L, A5 Sportback 2.0L, S5 Sportback 3.0L, RS 5 2.9L, A6 2.0L, A6 3.0L, S6 4.0L, A7 3.0L, S7 4.0L, RS7 4.0L (560 hp), RS7 4.0L (performance 605 hp), A8 3.0L, A8L 3.0L, A8 4.0L, A8L 4.0L, S8 4.0L, S8 Plus 4.0L, Q3 2.0L, Q5 2.0L, SQ5 3.0L, Q7 2.0L, Q7 3.0L, SQ7 4.0L, R8 Coupe 5.2L, R8 Spyder 5.2L (540hp), R8 Spyder 5.2L (610hp), TT 2.0L, TTS 2.0L, TTRS 2.5L. |
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| A921916 2038151 | 2019-04-01. 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 2053598 | 2019-04-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains instructions for MIB2 Standard on how to update the MMI. |
| A461903 2034181 | 2019-04-01. Service bulletin. SERVICE BRAKES. This technical service bulletin provides troubleshooting for brake noise. |
| A441969 2022563 | 2019-04-01. Service bulletin. SUSPENSION. This bulletin provides information regarding vibrations or movement that are felt in the wheel. |
| SM 44-2017 EN | 2019-04-01. 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 This special notice is to inform dealers to return all part numbers listed in the document and order the superseded part numbers going forward. |
| A001814 2045316- | 2019-02-19. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains information about the Start/Stop system. |
| Tire Pressure Ta | 2019-02-19. Service bulletin. EQUIPMENT. New Document |
| Scheduled Mainte | 2019-02-19. Service bulletin. EQUIPMENT. Added Oil Capacity Chart at the end of the document. |
| Scheduled Mainte | 2019-02-19. Service bulletin. EQUIPMENT. Under Additional Maintenance Items Section: Converted kilometers to miles for all items. |
| Scheduled Mainte | 2019-02-19. Service bulletin. EQUIPMENT. Changed format of Service Intervals Table Minor Maintenance Section: Added "Multi-Point Inspection - Completed" to checklist items. Created table for "Additional Maintenance Items" |
| A511711 2009967- | 2019-02-19. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains instructions for vehicle inspection, protection removal, and detailing. |
| A011884 2047707- | 2018-12-10. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This bulletin provides repair instructions for when DTC P195000, P10EF00, and/or B10F000 appears with no A/C or a MIL. |
| 2018 A4-S4-allro | 2018-10-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Reminder Section: Changed GFF statement to the following: All PDI function tests must be run in Guided Fault Finding (GFF) using PDI Total Function Test Plan only. |
| Service Informat | 2018-09-24. Service bulletin. EQUIPMENT. Page 2 Disclosure information changed |
| A911897 | 2018-09-24. Service bulletin. EQUIPMENT. This bulletin contains instructions for when the customer loses audio for the radio after ending an incoming phone call. |
| A461891 | 2018-09-24. Service bulletin. SERVICE BRAKES. This informational only bulletin indicates that rear calipers missing the "S" badge are to not to be retrofitted to the old style. |
| A431829 | 2018-09-24. Service bulletin. EQUIPMENT. This bulletin contains repair instructions for DTC B200FF0. |
| A011872 | 2018-09-24. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update for DTC P060C00. |
| SM 91-2018 | 2018-09-17. Service bulletin. EQUIPMENT:ELECTRICAL. The part numbers listed in the document are to be returned if they meet the criteria provided. |
| A011876 2047707- | 2018-09-17. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. This bulletin provides repair instructions for when DTC P195000, P10EF00, and/or B10F000 appears with no A/C or a MIL. |
| Service Informat | 2018-09-17. Service bulletin. TIRES. Page 2 Disclosure information changed |
| A461891 2050535- | 2018-09-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER; SERVICE BRAKES, AIR:DISC:CALIPER. This informational only bulletin indicates that rear calipers missing the "S" badge are to not to be retrofitted to the old style. |
| A431829 2051336- | 2018-09-17. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains repair instructions for DTC B200FF0. |
| A011872 2051368- | 2018-09-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update for DTC P060C00. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.