Oxygen Sensor issue
Hey guys - complete noobie here. Just wanted to get some expert opinion. I've got a 2003 A4 Quattro and the engine light's been on for a few days. Got my local mechanic to, using the OBD, tell me it's the oxygen sensor. I've been experience a loss in power and acceleration, which I guess, can be attributed to a bad oxygen sensor.
My question is, where can I get one online and more importantly, is there one that you guys recommend? Will any O2 sensor (that's advterised as working for my car) do the job? Are there any ones I should avoid? Anything else I need to know?
You guys are the best!
Thanks.