Been searching the webs on O2/Oxygen Sensor replacement and haven't really anything for the new Defender. Was planning on doing this myself on a free weekend, but before I order the parts, was curious if anyone has tackled this before or recommends just taking it in. Any links or resources would be awesome. Ive got the I6 P400 MHEV by the way.

Thanks!

 

There are six of these. A few are easier to reach, others not so. If it's in a location that requires disassembly, I'd have a shop do the work. However, unless you're getting an error code, it's not something I'd tackle as preventive maintenance. The sensors and service can be costly.