Quick postscript:
I was expecting the car back on Friday as I told them to go ahead with everything else and the MOT but leave the roof. I chased Friday afternoon to be told that they couldn't get the roof closed. Apparently 2 Maserati trained technicians had spent all day trying. I mentioned the manual process which took me (totally untrained) about 20 minutes to carry out, but got a bit of a garbled response.
On that basis I'm wondering if anything is wrong with the pump at all.
Anyway I'll get it back and follow up with the kind leads and advice offered.
I was expecting the car back on Friday as I told them to go ahead with everything else and the MOT but leave the roof. I chased Friday afternoon to be told that they couldn't get the roof closed. Apparently 2 Maserati trained technicians had spent all day trying. I mentioned the manual process which took me (totally untrained) about 20 minutes to carry out, but got a bit of a garbled response.
On that basis I'm wondering if anything is wrong with the pump at all.
Anyway I'll get it back and follow up with the kind leads and advice offered.