DTC P0491 and P0492 (Secondary Air System Insufficient Flow, Bank 1/2) are stored at the same time.
Audi technical service bulletin 26 12 15 2026528 for 2009-2011 Audi A4, 2009-2011 Audi A6 and 2009-2011 Audi R8.
- Bulletin number
- 26 12 15 2026528
- Component
- Electrical system
- Summary
- DTC P0491 and P0492 (Secondary Air System Insufficient Flow, Bank 1/2) are stored at the same time.
Owners of these vehicles have filed 12 complaints in the electrical category.
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