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Service bulletins for the 2018 Audi S8

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
A9022572032113_62022-05-05. Service bulletin. EQUIPMENT:ELECTRICAL. This is an informational bulletin containing information about the outside temperature reading.
A8722242064077_12022-05-05. Service bulletin. ENGINE AND ENGINE COOLING. This TSB describes a method for leak detection for R134A and R1234yf refrigerant platforms only.
A4622302034181202022-05-05. Service bulletin. SERVICE BRAKES. This technical service bulletin provides troubleshooting for brake noise.
A6622862046229_32022-05-05. Service bulletin. STRUCTURE. This informational bulletin outlines proper warranty procedure for optical defects.
A9122892037809_92022-04-05. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This informational bulletin contains instructions about updating the navigation map.
A4222482038689_62022-04-05. Service bulletin. SUSPENSION. This bulletin contains information on how to fix a clunking or rattling noise heard from the rear suspension when the vehicle is driven over bumps.
A4022342018194102022-04-05. Service bulletin. SUSPENSION. This informational bulletin contains knowledge on why oil may appear on one or several of the shock absorbers.
A4822232053869_52022-04-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair instructions for when DTC B145504 with symptom code 7340800.
A2722412058831_42022-04-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). This bulletin contains a software update for DTC P0CA700 or U046900.
A4622282051095_52022-03-04. Service bulletin. EQUIPMENT:ELECTRICAL. This informational bulletin contains instructions on how to download and use the Audi Frequency App.
A6922812056406_32022-03-04. Service bulletin. AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT. This bulletin contains instructions for when the airbag warning is illuminated and DTC B13BCF2 is stored.
A4422872022563202022-02-04. Service bulletin. WHEELS. This bulletin provides information regarding vibrations or movement that are felt in the wheel.
A4622272034181192022-02-04. Service bulletin. EQUIPMENT; SERVICE BRAKES; EQUIPMENT ADAPTIVE/MOBILITY. This technical service bulletin provides troubleshooting for brake noise.
A2721402058831_32022-01-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains a software update for DTC P0CA700 or U046900.
A9721822061976_22021-12-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains guidance for submitting warranty wiring repairs.
A9621742063336_22021-12-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; LANE DEPARTURE: LANE KEEP: AUTOMATIC STEERING. This bulletin contains a software update that address when intersection assist/ lane assist are inop with DTC C12BFF0.
A4321532059363_22021-09-02. Service bulletin. SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM. This bulletin contains repair instructions for DTC C1260F0 and U112100 with an air suspension malfunction warning.
A0021482021205_62021-07-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STRUCTURE. This informational bulletin explains how to order replacement VIN plates, Safety Certification Labels, etc.
A9121072060681_32021-07-02. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains instructions to update eligible cars from Google Earth to the new service provided by HERE.
A9621702063336_12021-07-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; LANE DEPARTURE:SOFTWARE. This bulletin contains a software update that address when intersection assist/ lane assist are inop with DTC C12BFF0.
A4821032063546_12021-07-02. Service bulletin. EQUIPMENT; STEERING. This bulletin states how to check for a dynamic steering actuator problem. Solution is under development.
A4821022061904_32021-07-02. Service bulletin. STEERING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. This bulletin contains repair instruction for when DTC C110DF0 is stored and the yellow steering lamp is on.
A4821012062288_32021-06-03. Service bulletin. STEERING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin contains repair instructions for when the electric steering column is not working in the vertical direction.
A4821002061904_22021-06-03. Service bulletin. STEERING:STEERING CONTROL MODULE. This bulletin contains repair instruction for when DTC C110DF0 is stored and the yellow steering lamp is on.
2018-030520192021-05-10. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 2018 Audi Maintenance Schedule - All Models

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