Here is a pdf on removing it

 

Don't have the pdf of the airbag removal, but here is the one of the steering column panels that might be useful

There are some videos on YouTube of driver's airbag removal in Volvo cars which should be similar ...

 

Thank you Rakthi, thats very helpful my only worry now is disconnecting airbag and if 12v and tcam need to be disconnected or just 12v battery.

 

The TCAM is just a small 3.7V backup battery for the ecall system etc, the only reason to disconnect it is so it doesn't discharge while you're doing the swap. Worst that can happen is it goes bellow a certain threshold and you'll get a warning about eCall until it charges back over the threshold again.

After disconnecting 12V don't be surprised if the car is still alive though!

If it happened to be active and charging the 12V battery at the time, you'd still have power (from the propulsion battery via the DC-DC converter) and an alert on the instrument cluster that there's a fault with the 12V battery.

It happened to me a couple of times.

There's no obvious way to isolate this (documented fuse for instance) so just reconnect and try again when the car isn't active. I had to close the door to lock it (didn't complain about the open bonnet) and wait a few seconds last time.

 

Thanks Kkonstan, thats great info. I will update once I get the wheel back in a few weeks. Done it on loads of previous cars but the EV does present a different set of challenges and just wanted to make sure 😀