AHC had failed twice during the trip - first pump could not build pressure - replaced the pump, 10k later same thing happened. With some weird workarounds could get it to N, but it was unreliable. Almost immediately after that the AHC computer stopped seeing any of the solenoids, only the height sensors. This turned out to be a blessing in disguise as this happened with the truck in normal height, perfectly levelled. With no control to the solenoids it couldn't drop the height and we did the rest 20-25k km o f the trip that way.
Long story short, it was a broken wire in Bl1 or Bl2 - the hardest to reach connectors between the body and chassis, right next to the rear tire.
Had to drop the tank and still barely was able to squeeze my fingers. A whole box of bananas job just from the effort it took to solder 1 wire in 8 hours...
With the AHC now able to control the solenoids it was time to investigate why the old pump and then the brand new pump could not build pressure. Kind of got an idea of the reason. That ain't Coke, but the AHC fluid from the passenger side globes.
Dark, slightly burnt and very airy. Flushed it with fresh fluid. Drove for about 150k and started not being able to build pressure again.
The bleeder on the accumulator has been broken since forever, so I can only bleed from the globes. Did a series of bleed - drive 100km - bleed and air kept coming out. I thought it might be leaking globe, as it was mostly on the passenger side globes and very little on drivers side. So I replaced the globes with a set of good ones from a friend who took the sensible approach and just replaced everything with Dobinson.
I also took his accumulator, but as documented many times, removing it from the car is an absolute pig of a job. I rate it 1 banana plantation and admitted defeat - could not remove mine.
Still, with the changed globes it kept acting up. And then the big act came. The front passenger strut broke

I don't think I have ever seen anybody mention this happening before. They are known to leak from the connection on top of the shock, but this one looks crooked to the side and leaked heavily down the shaft. So I took the completely unsensible approach and am waiting on an order for a new shock, set of globes, pump and some o-rings from Impex. I will be damned if this does not work.
This though was not the end of the bad luck. After a multi day offroad trip I had to do a 400km highway drive in a hurry with lots of driveline vibrations due to mud getting the tires out of balance, even though I had washed it as much as I could. Next day I had to drive back, but before that I went and pressure washed the rims. Still had vibrations. Even stopped next to the highway, crawled under and removed any bits of mud left on the backside of the rims. Noticed some balance weight missing, but didn't check the lug nuts. Started driving again and within 20 meters the rear of the truck dropped to the ground and the rear right tire rolled ahead of me. It had been the lug nuts all along
Zero damage to the strut, disc, axle or anything else, but the rear quarter panel is badly banged by the tire. Suuuper bummed by this. So far had been able to keep body damage to absolute minimum with just a couple of small dents.
Was lucky that two of the bolts were unaffected and one opposite of them was only marginally bent, so I was able to put the spare on and crawl back home. I was able to push the very bent one inside the disc.
Rim is gone, which sucks as 18" are extremely rare in my part of Europe.
I am glad that this happened while practically stationary. Moments before that I was doing 130km/hr and would have rolled a lot, had the tire had fallen then. Will try to buff the wheel arch at least a little bit. I have been thinking about cutting the body behind the driver seats for a long time and that might just be the trigger. Have been frothing over a lot of these conversions.