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T1: V6 Oxygen Sensor info

I found vcds naming a bit confusing so I looket it up in elsawin.
the VR6 has two banks and everybody know that So what about this sort of info in vcds:
Oxygen (Lambda) Sensor B1 S1 => that's bank1 sensor 1. This is supposed to be the upstream sensor on bank one catalytic converter !
So bank 1 is the bank with cylinder number 1 and that's the bank on the left side when standing in front of the Treg.
The problem is the VR6 in the treg (and probably other cars) has both exhaust manifolds on the left sides which makes it difficult to find out which exhaust is connected to which bank. Elsa to the rescue:
Catalytic converter, let's call it front, the one nearest to the front of the car is then called:
Starter catalytic converter => Installed in exhaust gas stream of cylinders 1, 2 and 3 which is not really bank 1 since bank 1 has cylinders 1-3-5
And the second catalytic converter, let's call it rear, is called:
Starter catalytic converter => Installed in exhaust gas stream of cylinders 4, 5 and 6 which is also not bank 2 since bank 2 has cylinder 2-4-6.
Front and Rear catalytic naming sounds much more accurate expecially in the case of the Treg as the engine is mounted longitudinally. So here is an accurate pic with info and the sensor naming Gxx which I also find more accurate. I'll add the part numbers later.
I know someone posted a pic of the 3.6 oxygen sensor lacations but I wanted to have a 3.2 info here.
So Bank 1 sensor 1 is number 8 => G39
So Bank 1 sensor 2 is number 12 => G130
So Bank 2 sensor 1 is number 9 => G108
So Bank 2 sensor 2 is number 13 => G131

Sensors 1 are upstream (before cat)
Sensors 2 are upstream (after cat)

In ETKA it's a diffrent story:

If you look at the elsawin pic you will see it is like you're standing on the passenger side of the car (Driver side for RHD), let's say you're standing on the right front wheel and looking at the engine. There you can see that you have two cats, one right, on your right hand and one left, on your left hand, so far so good. So if you want to order online and you have only Bank 1/2 Sensor 1/2 from vcds as a reference here is how to find out which one:

bank 1 Sensor 1 => upstream right
bank 1 Sensor 2 => downstream right
bank 2 Sensor 1 => upstream left
bank 2 Sensor 2 => downstream left

Take a look at the ETKA picture and picture it like you're standing on the right side of the car facing the exhaust manifold.

Corrections or additions are welcome
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post #2 of 5 Old 1 Week Ago Thread Starter
Touareg Mechanic
 
Touareg: 2004 V6
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Etka Pic:

bank 1 Sensor 1 => upstream right => 11
bank 1 Sensor 2 => downstream right => 12
bank 2 Sensor 1 => upstream left => 9
bank 2 Sensor 2 => downstream left => 10

Parts numbers are different according to engine model.
I'm putting mine here. AZZ engine. Parts have been upgraded since so if you order from vw you'll get the latest upgraded version. This is only for informational purpose.

11 => 022906262BE
12 => 022906262BG
9 => 022906262BF
10 => 022906262BH
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post #3 of 5 Old 1 Week Ago Thread Starter
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post #4 of 5 Old 1 Week Ago Thread Starter
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Exhaust manifold seen from the right side of the car:



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post #5 of 5 Old 1 Week Ago Thread Starter
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T1: V6 Oxygen Sensor info

Right exhaust (bank 1)


Left Exhaust (bank 2)



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