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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.

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Bulletins, newest first
A011854 2046724_2018-04-16. Service bulletin. EQUIPMENT. This bulletin contains a software update to address occasional stalling or running erratically without a DTC. Occasional "System too rich" entries.
Scheduled Mainte2018-04-16. Service bulletin. ENGINE AND ENGINE COOLING. Oil Capacity Table: For A3 B-Cycle 2.0 TFSI engine: Changed oil spec from 508/509** Castrol EDGE® Professional® 5W40 to 508/509** Castrol EDGE® Professional® 0W20 Long Life IV
A871679 2041717-2018-03-13. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER. This bulletin applies to any repair that requires replacement of the air conditioning compressor and details how to run a ODIS GFF test plan.
A1915612025303-52018-02-05. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 19 number 14-50 dated June 20, 2014. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have been replaced by an improved version. G12++ coolant (for service available) has been introduced in MY 2005 for all engines. G13 has been introduced in MY 2008 as factory filling and service.
A171782 2010043-2018-02-05. Service bulletin. ENGINE. This informational bulletin contains all the the Audi Oil Quality Standards that should be used when doing an oil change.
A441764 2022563-2018-02-05. Service bulletin. SUSPENSION:FRONT. This bulletin provides information regarding vibrations or movement that are felt in the wheel.
ATE-17-052018-02-05. Service bulletin. EQUIPMENT. Due to increasing requests for high voltage personal protective equipment (HVE PPE) for dealer technicians working with high voltage vehicles (Hybrid, Plugin Hybrid, Electric Vehicle), the Volkswagen Tools and Equipment Team has identified two US based suppliers to support dealers in USA and Canada.
A921613 2038151-2018-02-05. Service bulletin. EQUIPMENT. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct.
A921612 2038151-2018-02-05. Service bulletin. EQUIPMENT. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct.
A911743 2042097-2018-02-05. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin contains resource information for when the traffic feature is inoperative in the MMI navigation.
A401770 2018194-2018-02-05. Service bulletin. SUSPENSION. This informational bulletin contains knowledge on why oil may appear on one or several of the shock absorbers.
A941791 2012749-2018-02-05. Service bulletin. EXTERIOR LIGHTING. This informational bulletin contains technical information for when there is condensation visible on the inside of the headlight, taillight, fog light, side marker light, front turn signal, daytime running lights, and/or third brake light lens.
A911737 2047576-2018-02-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This is a reference bulletin that contains software update information for the MID2 MMI system.
A911736 2024323-2018-02-05. Service bulletin. FORWARD COLLISION AVOIDANCE: DYNAMIC BRAKE SUPPORT/BRAKE ASSIST. This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning.
A191789 2046712-2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap.
A911732 2033355-2018-02-05. Service bulletin. FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. This informational bulletin contains information on why ACC sensor could be deactivated.
A191777 2046712-2017-10-04. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap.
A921614 2038151-2017-09-27. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct.
A911639204201332017-03-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE AND RESOLVE ISSUES WITH AUDI CONNECT ONLINE DESTINATION SEARCH, GOOGLE EARTH NAVIGATION VIEW, AND INRIX ONLINE TRAFFIC.

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