Vauxhall Vivaro Steering Column Problems

The interior lights had stopped working and the fuse had blown. I changed the fuse (15amp) with a new one (10amp) and smoke started to come out from under the dash by the steering column. The only way I could stop this was to disconnect...

When driving my van I've noticed when I steer the van doesn't respond straight away it's like when you drive in a valley on the road and the van sticks in it but the steering wheel turns, with my van the wheel doesn't move but the van drift...

Intermittent cuts out while driving for split second then fires back up again. Just noticed while it done it today dash went dead speedo/gauges then back working again possible electrical like bad connection or something.

Anyone had any joy with this problem? I'm having the exact same thing. Checked and switched every single fuse and relay. Any help greatly appreciated.