Assuming that all of the clamps are all in place and that the other system components are secure, I'd try to bleed the system thinking maybe there's air trapped in there. Here's the procedure from the Bentley's manual:
-With engine off, fill LAD reservoir until fluid level is approximately 25 mm (1 inch) below the reservoir rim.
-Load car with 150 kg (332 lbs.) placed in the luggage compartment.
-Start engine. Turn steering wheel from lock to lock three times. Turn engine off.
- Raise rear of car until drive wheels are off ground. Wait about two minutes and check fluid level. Fluid level should be no more than 25mm (1 Inch) above the base of the reservoir screen. Correct fluid level as necessary.
It doesn't say but you'll probably want to remove the 332 lbs. of junk from the trunk hehe.