[ColinT123]

I

Hey there, My names Colin and I'm brand new here..I need help or maybe just some info..I have a 09 b8 a4 avant with 115k miles..I love the car..I took it for inspection and emissions and failed horribly with all the codes above showing up..I was quoted 10 grand to fix these codes..I really didn't expect that as the car drives exactly like the day I bought it..I don't know too much about cars but I definitely don't want to sell it as I did my turbo 2000 integra gsr smh, can anyone give me a second opinion on what to do..I was told by replacing the intake manifold it could clear most of these codes...thanks guys

 

[drdave39]

Not sure how much his applies- I have a 2009 A6 Avant with the 3.0T supercharged V6 motor, that recurrently gives me a check engine light and a p-40411 code. My indy shop told me its essentialy a carbon buildup issue that blocks the SAI system from flowing enough air. The SAI (Secondary Air Injection) system pumps air into the exhaust to re-ignite any unburned fuel, sinceall the air was used in the power cycle). They told me 1) it has ZERO impact on reliability or gas mileage, it simply means the car pollutes a TINY bit more, and 2) it was a HUGE amount of labor (est. $3-4K) to get at it to fix it. Since Ohio is no longer an inspection state, they suggested I ignore it. I've run the car for at least 4 years since then with zero issues, every few months the CEL pops up and I delete the code. Hope this helps.

Dave