E53 Air Suspension slow leak help.. Slow leak after replacing air bags

[tjb45]

Hi all, I'm after a little help with my E53 X5.

The front right air bag was shot, and leaking heaps from the bag area.. I order two Arnott Replacement bags and have just fitted them on the front left and right.

After taking the car for a test drive, I've noticed the front right is slowly going down at around the rate of 25mm ever 20 minutes. Leaving the car overnight, the front is all the way down in the morning. Opening the drivers door, and it will pump back up to the correct high, but will always slowly leak down again.

I've sprayed as much of the air bag as possible with soapy water and cant find a leak, I've also checked the valve distribution box near the accumulator under the car and also cant see a leak here.

Is there anywhere else I should be checking for a leak?

Starting to go crazy trying to fix this car....