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Service bulletins for the 2008 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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
A1721122060750_22021-03-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for using the UV additive to find engine oil leaks.
A1720112060750_12020-11-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION; EQUIPMENT. This bulletin contains instructions for using the UV additive to find engine oil leaks.
A9020652032113_42020-09-03. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:COOLING SYSTEM. This information bulletin contains a background on the outside air temperature reading.
A1920042025303_12020-07-07. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin contains instructions for identifying and mixing factory fill coolants.
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.
A011369 2028344-2017-11-17. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 01 number 12-57 dated October 29, 2012. Noises/inconsistent engine operation after cold start during the catalyst heating phase. The customer may interpret this engine roughness as misfiring. To comply with the legal requirements on exhaust gas emissions according to the LEV-1 and LEV-2 standards, a high exhaust gas quality must be ensured. The necessary catalyst only operates at a temperature over 300°C (572°F). To achieve this, the catalyst is heated up. The catalyst heating phase is achieved by a late ignition angles and by introducing additional fresh air to the exhaust valves (secondary air system). Late ignition angles make sure that the exhaust gas from the cylinders has a higher temperature. This exhaust gas includes fuel that is un-burnt, and was deliberately injected into great quantities. The secondary air system adds fresh air to the exhaust gas as it leaves the cylinder and the extra fuel is burnt. As a result, the temperatures of the exhaust gas and of the catalyst increase quickly. The afterburning in the exhaust manifold before the catalyst changes the sound characteristic of the engine. This heating-up of the catalyst, including afterburning, is normal and has no effect on the service life of the engine. During this catalyst heating phase, the engine has increased idle speed, may have increased vibrations, and has a different sound characteristic. Depending on conditions, the time of the catalyst heating phase varies.
A011255 2030192-2017-11-08. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. MIL light on. P2015 sender of intake manifold flap position/air flow control, implausible signal P2020 sender of intake manifold flap position, intake manifold flap 2, implausible signal. Engine may have reduced performance without significant loss of power or stalling. Check service history to see if the improved ? B? suffix V157 Intake Flap motor has already been installed previously; if yes, only replace the potentiometer seals as described below. The fault entry is made because a linkage of the intake manifold flap adjustment sticks. This is caused by deformed oil seal behind the potentiometers.
A011257 2028344-2017-11-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 01 number 12-51 dated July 18, 2012. Noises/inconsistent engine operation after cold start during the catalyst heating phase. The customer may interpret this engine roughness as misfiring. To comply with the legal requirements on exhaust gas emissions according to the LEV-1 and LEV-2 standards, a high exhaust gas quality must be ensured. The necessary catalyst only operates at a temperature over 300°C (572°F). To achieve this, the catalyst is heated up. The catalyst heating phase is achieved by a late ignition angles and by introducing additional fresh air to the exhaust valves (secondary air system). Late ignition angles make sure that the exhaust gas from the cylinders has a higher temperature. This exhaust gas includes fuel that is un-burnt, and was deliberately injected into great quantities. The secondary air system adds fresh air to the exhaust gas as it leaves the cylinder and the extra fuel is burnt. As a result, the temperature of the exhaust gas and of the catalyst increases quickly. The afterburning in the exhaust manifold before catalyst changes the sound characteristic of the engine. This heating-up of the catalyst, including afterburning, is normal and has no effect on the service life of the engine. During this catalyst heating phase the engine has increased idle speed, may have increased vibrations, and a different sound characteristic. Depending on conditions the time of the catalyst heating phase varies.
Reference-Oil Ca2017-11-03. Service bulletin. ENGINE; EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This document contains the Audi oil capacity chart.
SB-24X42016-05-23. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ELECTRICAL SYSTEM:SOFTWARE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-01-15-292015-10-15. Service bulletin. ENGINE. AUDI: ENGINE, ON SOME VEHICLES, WOULD RUN IRREGULARLY OR HAVE MALFUNCTION INDICATOR LAMP (MIL) ON OR POSSIBLE FILTER ELEMENT FOR CAMSHAFT ADJUSTMENT VALVE CAN LOOSEN AND IN OIL CIRCUIT, THERE IS NO DAMAGE FROM LOOSENED PARTICLES. MODEL ALL. ALL YEARS. *PE
TSB-01-11-352012-02-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. AUDI: SOME VEHICLES MAY EXPERIENCE SEVERAL MALFUNCTIONS REGARDING THE INTAKE FLAP MOTOR OR INTAKE MANIFOLD RUNNER POSITION SENSOR THAT MAY BE INOPERATIVE. *PE
TSB-01-10-132011-02-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. AUDI: MIL ON; ROUGH IDLE; ONE OR MORE OF THE FOLLOWING DTCS ARE STORED-DTC P0300 (RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED); DTC P0301-0312 (CYL. 1 MISFIRE DETECTED-CYL.12 MISFIRE DETECTED); ENGINE MAY HAVE REDUCED PERFORMANCE WITHOUT SIGNIFICANT LOSS OF POWER OR STALLING. *PE
TSB-01-10-092011-02-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. AUDI: MIL ON; ROUGH IDLE, ONE OR MORE OF THE FOLLOWING DTCS ARE STORED-DTC P0300 RANDOM/MULTIPLE CYLINER MISFIRE DETECTED; DTC P0301-0312 (CYL. 1 MISFIRE DETECTED-CYL. 12 MISFIRE DETECTED); ENGINE MAY HAVE REDUCED PERFORMANCE WITHOUT SIGNIFICANT LOSS OF POWER OR STALLING. *PE
TSB-24-10-022010-11-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; FUEL SYSTEM, OTHER. AUDI: MIL ON AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED IN THE ECM DATA MEMORY-P310B (LOW PRESSURE FUEL SYSTEM REGULATION, FUEL PRESSURE OUTSIDE TOLERANCE); P129F OR P008B (LOW PRESSURE FUEL SYSTEM, PRESSURE TOO HIGH); P129E OR P008A (LOW PRESSURE SYSTEM, PRESSURE TOO LOW); P2540 (LOW PRESSURE FUEL SYSTEM, PRESSURE OUT OF RANGE); P0087 (RAIL FUEL PRESSURE SYSTEM, PRESSURE TOO LOW). MODELS A3,4,6,8, S6,8, RS4, Q7, AND TT (2005-2008). *PE
TSB-24-09-082009-12-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. AUDI: ENGINE WILL NOT START WITH POSSIBLE MIL/EPC ON (P0087, P0088, P310B). ENGINE DOESN'T START. THE FOLLOWING DTC ENTRIES MAY BE LOGGED IN THE FAULT MEMORY INDIVIDUALLY OR IN COMBINATION: FUEL RAIL/SYSTEM PRESSURE TOO LOW-P0087; FUEL RAIL/SYSTEM PRESSURE TOO HIGH-P0088; LOW FUEL PRESSURE REGULATION, FUEL PRESSURE OUTSIDE OF TOLERANCE-P310B. *PE
2408122008-07-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MIL ON (DTC P310B AND/OR P129F) AND ONE OR MORE OF THE FOLLOWING DTCS ARE STORED IN THE ECM DATA MEMORY. *PE

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