Thought I would give an update about the roof problem which seems to be turning into my lifes work.
Having identified the right front wheel speed sensor and the brake light switch as a possibles fault I removed the sensor and the brake light switch.
I reconnected the battery and just out of curiosity tried the roof switch.
The windows all went down and the boot (trunk) opened as it should but that was as far as it got.
On pressing the roof switch to close the roof all went well with the boot locking in position and the windows closing except for the left hand front window which stopped a couple of inches short of closed the windows would not open or close even when using the window switches.
I have now replaced the wheel speed sensor and brake light switch but the ABS light is staying on, unless any one knows of a way to turn the light off? I may have to pay another £45 to clear the fault codes.
Unfortunately the roof still does not work. Although on trying it on one occasion the windows dropped but still do not work using the window switches on the positive side it is a nice sunny day.
I appreciate that ABS light may be affecting the roof and I will need to clear the fault codes but given the random nature of what's happening It feels like possible a wiring issue or a fault with the multi function control unit.
Anybody got any suggestion that don't include a box of matches and a gallon of petrol please help.