Mini Paceman oxygen sensor issue

Whoa, that sounds like a drag! Check engine lights are never fun. An aged O2 sensor on a Paceman with that mileage? Hmm, maybe it's just a bad batch. Have you tried checking the sensor's wiring harness for any obvious damage or loose connections? It could be something simple before you go tearing into the air-fuel ratio system.

Thanks for the suggestion! When you say 'wiring harness', are you referring to the cable that connects directly to the oxygen sensor itself? Is there a specific area where these connections tend to fail?

Yeah, the cable that plugs right into the O2 sensor. Sometimes they get brittle or the connectors corrode. But honestly, if you're not super comfortable poking around with electrical stuff, maybe get a professional to take a peek. A faulty O2 sensor can mess with your fuel efficiency big time. It could be a quick fix, or it could snowball into something worse. Better safe than sorry, right?

Just wanted to let you know I got the oxygen sensor sorted. Turns out it was indeed a defective plug connection, just as suspected. The repair cost 95€. Thanks for your input!