Disco 2 water leak from roof....

Yes its reared its head. I also have the water leak from the roof and have searched the threads to no real avail. The main times it has leaked is when parked on my drive after fairly heavy rain(car parked ever so slightly that rear end is lower than front). Always appears in the rear of the heading at its lowest point either side. As soon as I reverse down the drive and press the brakes it pours out of the rear of the headlining down the c posts into the boot.

I plan to remove the headlining completely to identify the leak however what else could be the issue before I attempt removing the lining, I.e what could be blocked /leaking?

regards

Ben

Have a read through this -

https://www.landyzone.co.uk/land-rover/discovery-how-to-repair-a-leaking-sunroof-guide.171192/