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Hi guys, im new to this site, and new to Audi's and just having a couple of problems with a 1999 A3 1.6 8v. Now the A3's O2 sensor i think you'll agree is tricky to get to and i want to change it. But before i unscrew the sensor, i need to know where the plug is. I have traced the wire from the...

Hi, i know this is a while away from last post, but im having trouble locating the plug for the O2 sensor on my friend's 1999 Audi A3, 1.6 8v. I can see the sensor, which as you will know is in a difficult spot. But when tracing the wire to the plug, it seems to dissapear behind a metal shield...