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Where is the s2 b2 - o2 sensor located on my 2000 Audi A6?


New member
I put my car threw a diagnostics computer and it came back stating it is S2-B2 RIGHT SIDE DOWN STREAM O2 SENSOR. I want to replace it my self because I know its something simple I just need to find the correct one. Plus Pepboys tried to charge me $300 for something that takes five minutes to do, A bunch of rip offs. Well any information will be highly appreciated, Thanks.

PS- What does the S2 Means? I know B means Bank.

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