AUDI

A011383 2033001-

Manufacturer communications

Publication date: 2013-03-29
Received by NHTSA: 2017-11-17
NHTSA record numbers: 10123886

Manufacturer summary

Original wording in English

MIL on. DTC P0491 and P0492 (Secondary Air System Insufficient Flow, Bank 1/2) are stored at the same time. Mileage is greater than 15,000 miles. Under certain driving conditions, the secondary air ports in the cylinder head can accumulate carbon over time, causing a restriction.

NHTSA manufacturer communications ↗

Reported code forms

P0491 P0492

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

AudiP0492

Secondary Air System Insufficient Flow, Bank 1/2

NHTSA 10122864 · NHTSA 10123886 · NHTSA 10210604

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Make	Model	Model year
Audi	A4	2010
Audi	A4	2009
Audi	A4 AVANT	2011
Audi	A6	2011
Audi	A6	2010
Audi	A6	2009
Audi	Q5	2012
Audi	Q5	2011
Audi	Q5	2010
Audi	Q5	2009
Audi	Q7	2012
Audi	Q7	2011

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