Yes, pump is working with door open, and when turned to mar, clutch rod is moving when changing gears. Is the accumulator part of the actuator, or pump. Is alfadiag the only way to find out?
How long is the pump running for when the door's opened for the first time, after being left for a couple of hr's?
It should run for around 8 to 10 sec's. If it only runs only for a couple of sec's, it may well be an intermittent fault with the pump motor.
If it runs on alot longer, the accumulator probably isn't holding the pressure it should.
The accumulator is bolted onto the actuator. The pump is under the passanger front wing.
If the clutch rod is moving, you have pressure, but the rod length may be out, but you may not have enough pressure......
Alfadiag's a very good investment, failing that, main dealer or a good independant garage with diagnostic tools should be able to read off the error messages.