bmw 320i 2010 roof not working

[Crown]

hi i would like some help with mt bmw 320i m sport 2010. my roof suddenly wont work.

i have an error code 169d rear module solenoid valve 1 .

anyone know what this is.

i changed the salmon relay but nothing , (not sure if the mechanic change if correctly or not but )

[drdino]

Looks like it's a solenoid valve (I01123a, x804) on the roof drive unit that's under the boot floor?

[Crown]

seems to be, not sure if i need to replace valve or not let alone which part may require the change.

i have come across various solenoid valves but which one applies to the roof issues or how much roughly i may be charged if i go to the mechanic

[drdino]

Not sure if it's this one or not:
https://roofmotors.co.uk/bmw-3-series-e93-hydrauli...

Perhaps give these guys a ring and see if they can help with confirming and sourcing the part?