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Service bulletins for the 2015 Audi A3

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.

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

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Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
001468203790212023-01-03. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. Audi of America is requesting your cooperation in supplying us with the technical information vital to the successful launch of the Audi Q3, A3 Sedan TDI, A3 cabriolet, and S3. The following repair areas will require a repair authorization: ? Q3: 100% of the vehicle ? A3 cabriolet: 100% of the vehicle ? A3 TDI: Engine/exhaust aftertreatment (see attachment) ? S3: Engine/transmission
A2622492066008_12022-06-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. This bulletin advises that certain TDI vehicles are entitled to a one-time replacement of the Emissions Control Module after 70k miles.
EmailAUTDI2L-3L2020-10-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Reminders - TDI Approved Emissions Modifications, Emissions Compliant Repairs, corrections and extended warranty / warranty policy and loaner vehicle overview
Circular37K8REV12020-07-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Transmission control module (TCM) software designed and certified for a similar model/model year was used in vehicles affected by this action. It is undetermined whether there could be an impact to emissions. Updated claiming and parts information to add subframe crossbrace fasteners.

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