Service bulletin A011383 2033001-
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10123886 |
| Published by NHTSA | 2017-11-17 |
| Manufacturer's number | A011383 2033001- |
| Manufacturer's date | 2013-03-29 |
| NHTSA component | ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM |
NHTSA's summary
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.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine, Cooling system
Trouble codes named
P0491, P0492
| AUDI A4 | 2009, 2010 |
|---|---|
| AUDI A4 AVANT | 2011 |
| AUDI A6 | 2009, 2010, 2011 |
| AUDI Q5 | 2009, 2010, 2011, 2012 |
| AUDI Q7 | 2011, 2012 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
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| A191449 2036852- | 2017-11-08. Service bulletin. Cooling fans stay on after engine is turned off. The cooling fans may operate for up to 10 minutes after the engine is turned off. This function is mapped to specific driving patterns and vehicle operating modes (for example, DPF regeneration). This is normal operation, and no parts should be replaced. |