Hi all, having a problem with my drivers side front window not working. I've checked the motor and that's fine, the issue appears to be the wiring from the car side of the loom.
I can hear the BCU clicking so would like to double check where the earth point is for this window?
I've removed the kick plate trim under the A pillar under the dash and can see one block of earths but there is a spare stud with nothing screwed to it... Am I correct in thinking its just the one earth block under the dash on the drivers side?

 

From RAVE elect.
Windows - Front Operation BCU earth connection The BCU is earthed from pin C0660-11 on a B wire to earth header C0551. Front left window up The left window switch up contact is connected to pin C0660-18 on the BCU by a BS wire. When the switch is set to the up position an internal supply from the BCU flows along the BS wire through the contacts of the switch and to earth via earth header C0552 on a B wire. The BCU internal logic monitors the current flow from pin C0660-18 and uses this input as an up signal. The BCU routes power from the permanent feed from pin C0664-7 to pin C0664-4. From pin C0664-4, the power flows to connector interface C0463-6/C0744-6 on an SB wire, and from the connector interface to the LH front window motor on a SU wire. The motor is energised and drives the window mechanism towards the up position. The front left window motor is earthed via an SK wire to connector interface C0744-7/C04637, and an SR wire from the connector interface to pin C0664-1 on the BCU. The BCU completes the earth via pin C0664-5 on a B wire to earth header C0018 LHD/C0017 RHD.

I am sure it could be anything, but I would check the internals of the BCU, I spent a ton of time chasing a similar issue and there was a broken component in the bcu, cheap fix, but took a ton of time to get to the resolution.