The Audi A5 model name appears in the source set. A case document is not a complete US year/engine catalog or proof of a fault on your vehicle.
Use the exact model-year manual and VIN. A model name alone does not establish code, engine or parts compatibility.
This source supports a model name or the specific conditions shown below. A complete US year, engine, warning and parts list is not established here. Match your VIN and exact-year owner manual before using a code or case.
Read the Audi original: Secondary-air restrictions P0491/P0492 Source date: 2019-01-25; research checked: 2026-11-01.
Configuration evidence
The research confirms this US model name or a document scope. It does not yet establish an exact engine, year-specific warning, or universal DTC list. Check the manual before applying a generic guide.
How to narrow a warning
- Record the exact year, engine or EV powertrain, dashboard wording and whether it flashes.
- Read all available codes and module names before clearing them.
- Check for an open recall using the VIN at NHTSA; a service bulletin is not an open-recall result.
What this model record establishes
Model-name evidencemanufacturer document model name only
Years in current recordNo individual model year has been confirmed by this model-name record
Exact part fitmentNot verified
A model in a bulletin or owner resource can be a legitimate research lead while the exact engine, build date and warning equipment remain unknown. Use the source and vehicle identification before applying any repair branch.
Document applicability still to verify
- Q3-10: Shared engine/RPO columns cover several model rows. Never produce a Cartesian product of every engine and every year/model. Verify VIN/RPO pairing first.
Use the linked manufacturer document and current VIN-specific guidance; this page does not turn a flagged source row into an approved application.
Manufacturer document research leads
These are conditional service communications mentioning this model. They do not establish a common failure, apply to every engine, or prove that your VIN has the condition. Compare the exact year, powertrain, build date and symptom before using one.
Recorded model conditions in the source documents
| Communication | Recorded vehicle scope | Use limit |
|---|---|---|
| 2033001/18 | Audi A5 · 2010, 2011, 2012, 2013, 2014, 2015, 2016 · 3.2 FSI AVS / 3.0 TFSI grouped equipment in source; gasoline | Document conditions only; VIN, symptom and current revision require checking |
Rows retain the document’s grouped conditions. They are not a claim that every listed engine/year pairing was sold in the US or that every VIN qualifies.
Evidence to check in the original document
| Publisher | Document | Date | Link |
|---|---|---|---|
| Audi | Secondary-air restrictions P0491/P0492 | 2019-01-25 | Open source |
Document dates are not a claim that the latest revision has been checked. Match the VIN and current manufacturer instructions.
Manual and official evidence
- Audi — Secondary-air restrictions P0491/P0492 (2033001/18) Document: 2019-01-25 · Research checked: 2026-11-01
Sources and scope
- Audi — Secondary-air restrictions P0491/P0492 (2033001/18) Document: 2019-01-25 · Research checked: 2026-11-01
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.