Code P22A1; R350 BlueTEC
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 380
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From: Illinois
2019 Audi Q8, 2015 GL63, & 2005 E500W4
Code P22A1; R350 BlueTEC
My check engine light came on. My code reader gave me a code P22A1. I cannot find much information on it. It is not listed under Mercedes-Benz codes that I have found. My code reader indicates that it is related to the nitrogen oxide sensor. Any thoughts?
http://obdii.pro/en/code/P22A1
http://obdii.pro/en/code/P22A1
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 380
Likes: 59
From: Illinois
2019 Audi Q8, 2015 GL63, & 2005 E500W4
I purchased my Autel from Amazon.
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 380
Likes: 59
From: Illinois
2019 Audi Q8, 2015 GL63, & 2005 E500W4
My mechanic says that it is not that simple. He says that it is a difficult problem to diagnose, meaning that it might not only be the sensor.
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 380
Likes: 59
From: Illinois
2019 Audi Q8, 2015 GL63, & 2005 E500W4
I am currently in for about $2,000 in repairs related to this NOx sensor. Apparently, there is still no guarantee that it will fix the problem.
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Joined: Jan 2009
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From: V E G A S
1922 Ford Model T / no OBD
No it is not that simple.
Bare in mind Yoni, that you are taking the advice from "specialist" who says his 300 diesel does not have wastegate.
Have no idea where you could put the $2000 but it looks pretty simple on video.
Bare in mind Yoni, that you are taking the advice from "specialist" who says his 300 diesel does not have wastegate.
Have no idea where you could put the $2000 but it looks pretty simple on video.
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 380
Likes: 59
From: Illinois
2019 Audi Q8, 2015 GL63, & 2005 E500W4
I got my baby back. She had her NOx sensors replaced and camshaft position sensor replaced. Unfortunately, it looks like the timing chain and tensioners will need to be replaced in the near future.
