How to disable roof Hydraulic pump

[CaliforniaCylus]

I've asked this question elsewhere but it's embedded in loads of other detail so thought I would ask in a new Thread.

I want to ascertain if the roof is sagging more than 20cms in 3 days - allegedly the VW tolerance.

Because the roof auto-corrects every 5 hours, I can't measure this directly.

How can I disable the pump or control panel such that I can measure the sag without re-inflation. And I need it to be risk free - don't want to find when I re-enable it, the roof won't lower.

Any ideas?

 

[andyinluton]

Disconnect the batteries.