Date registered: Jan 2014
Vehicle: 1977 450 SEL 6.9
Location: Vancouver, Canada
Mentioned: 2 Post(s)
Quoted: 118 Post(s)
I am sure member "KRH" (Kim) will weigh in, he has a W126 with full Gen 2 Hydro, very nice. They take a lot of sorting if the system has not been maintained.
For starters, I would check the "H" setting, pull the dash knob out all the way, the car should rise effortlessly to the High setting with engine running. Also you need to check if you have Gen 1 or Gen 2 hydro. The Gen 2 has active damping and speed auto - leveling, way cool, but even more complex, the control units for these wear out, as Kim will speak to I'm sure. Do a quick search, there has been some very detailed post not too long ago on what to look out for.
Last edited by Dikdaan; 06-20-2019 at 10:14 AM.