Service bulletins for the 2004 Audi A8
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.
209 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Transmission control module are shown. Show all
| TSB-19-07-07 | 2010-05-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM:SOFTWARE. AUDI: POOR OR NO HEATING IN ANY OR ALL HEATING ZONES. ECM SOFTWARE UPDATED WITH MODIFIED MAP CONTROLLED COOLANT THERMOSTAT SPECIFICATIONS. THE TCM SOFTWARE MUST ALSO BE UPDATED TO BE COMPATIBLE WITH THE NEW ECM SOFTWARE LEVEL. POSSIBLE ENGINE COOLANT SCALING IN HVAC SYSTEM. *PE |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.