2011 V60 Sunroof - problem

[barnetbarnet]

Hello
My sunroof worked perfectly on my 2011 V60 - One touch open, tilt and close. I recently had to replace the sunroof motor which I have done, having replaced with a salvaged motor. The 'new' motor works fine but now the switch does not seem to be configured the same - it not longer works in 'one touch' mode - I have to push and hold the switch to open or close the roof and in doing so there appears to be no certain 'closed' position as it continues past this and starts to open.

Any ideas to ensure I securely close the sunroof before waking up to a foot well full of rain!!

Thanks