zenocchio

I’ve replaced the air struts on my car, and the air block valve but the car still lowers to the ground overnight. There are no apparent leaks in the line, I’m that I’ve tested with soapy water. It’s a pretty frustrating situation and before I make a warranty claim in the arnott air struts I wanted to pick your brain in what to test.
thanks

Aktash

Does it lower on one side or both?
And how did it fail before the replacement? What was the original issue?

zenocchio

it used to lower both sides, it appears to be random as sometimes it would take an hour and sometimes a day. The first thing I did was to replace the valve block, that did not change anything, same random duration. Since then I replaced both air bags and I still have the same issue, both sides lowering at the same time, with random frequency.

bmwpowere36m3

I would check the lines again, on our wagon one of the lines rubbing against the body and was causing a slow overnight drop. There are heat-shields around the spare tire well, the lines run behind. Also disconnect the large line between the valve body and compressor and stick into a cup of water. Watch it for a while (5 minutes)... any bubbles form or escape out the line?

zenocchio

good suggestions there, i will dive deeper this weekend.

I noticed that the right side of the car lowers a good inch more than the left side, are the airlines connected and supposed to balance out both air bags?