I have a problem. While in Spain earlier this month we had a Drive-Rite semi-air suspension installed as our 1999 X230 was suffering badly in the winds. The spring assisters were quite deteriorated.

I speak little Spanish and the mechanic had zero English but was reported to install one system a week.

I noticed he did not adjust the Load Sensing Valve, which was described in the instructions.

When we got off the ferry yesterday [Rosslare, we live in Ireland], we drove 20 some km to Wexford campground. Then this morning we were setting off for home in Limerick and we found we had zero brakes. The AA and then local [100 metres] Opel garage confirmed the brake equalisation valve was leaking.

The Opel garage has ordered a new part for Monday.

So:
1. could the equalisation valve failure be related to the air suspension installation?
2. how should the LSV be adjusted?

I tried to see this in ePER but couldn't puzzle it out.

Thanks.

Its no joke to adjust according to manufacturer specs see attached document, I suppose what you could do if you have access to gauges is let the air out of the bags and compare front to back pressure, then reset to those values when pumped backup again. Less scientific methods:
http://www.marcleleisure.co.uk/store/ducato.php