2004 Audi A6 P0030 HO2S Heater Control Circuit Bank 1 Senso

2004 AUDI A6
140,000 MILES • 6 CYL • AWD • AUTOMATIC
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MIXEM
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I have a 2004 Audi A6 Quatro with a faulty oxygen sensor. I would like to replace it myself and have a two part question. 1) Where is the HO2S Heater Control Circuit Bank 1 Sensor 1 located? Is it easily accessible?
Jun 5, 2010 at 1:10 PM
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RASMATAZ
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B1S1 is located on no.27 see pic -dunno about easy access to it never done one on this vehicle looks like you can do it from the top. Good Luck


https://www.2carpros.com/forum/automotive_pictures/12900_b1s1_3.jpg

Jun 6, 2010 at 12:47 AM