Originally Posted by tbrown

Plug it in when you want to use it, for example to read codes, or change something. If changing something it updates the CCF (config files). Then unplug it and off you go. Make sure your phone and car are both charged, as you don't want to be writing a file and die due to lack of power.

Originally Posted by ColoLR

Another new Octa owner, also Charente. I had a similar issue but it came up in relation to another problem, power steering went out. It turned out to be minor (clip for the wiring harness at the rack was not full seated) but for some reason a CEL came on at the same time. What the dealer told me was that the code it threw wasn't even in TopiX yet, no record of it. No wiring diagrams, schematics, or anything is loaded yet for dealers to see BMW spares uk. They had to open a case with the UK then wound up using the old fashioned way of process of elimination. Great job by the dealer, so I believe what you are being told. They are just so new there isn't a lot of support yet.

How do you like it? I am quite tall and find it hard to get up into it, first truck ever like it. Can't wait till I am out of break in!

Originally Posted by irontmp

The check engine light issue you’re describing with the battery control module fault sounds like a known quirk related to the auto start/stop system. It’s common in Defender V8s and usually resolves with a software update or BCM module replacement. Driving longer after startup clearing the light fits this pattern. Hopefully, the dealer will provide a fix soon. Also, good call on skipping the deployable running boards at $9,500—that’s quite expensive! Normal mode’s height on the Octa definitely feels taller than the V8.