Well, I thought I had my SLS all sorted out on my '84 wagon, new accumulators, high pressure line, return line, fluid flush and fill, new z links, adjustment rod, pump confirmed as good, etc. Yesterday, I noticed that my passenger side appeared to be lower and sure enough it sits at 12.5 while my drivers side sits at 13.5 so passenger side strut appears to be slowly losing pressure internally over night as I cannot see any signs of external leaking. I have not checked upper hose connections on struts but I would imagine if these were even just slightly loose there would be some visible leakage(?) Has anyone on the site ever discovered that their upper hose connections were loose and that made a difference? I will check these connections today - Thanks again -hate the idea of buying a new strut and if I have to, who has the best price of these very expensive struts? THANKS!

I would think it would have to be the accumulator on that side. could be the strut but less likely, if it was leaking at the top you would see it running down the sides. im not sure 12.5 is really that low, 13.5 seems like its on the high end. you didnt use your lever to set the ride height did you ?

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1996 E300 110,000
1985 300TD 212,000
1980 300D 238,000

I adjusted the new rod by inserting a pin in the SLS valve body neutral position orientation hole and adjusting accordingly. Car has been holding fine for the past week and then suddenly, lower on one side. This car had been driven for some time without a functioning SLS sstem so who knows what abuse the struts/seals may have received in this time. The accumulators are brand new -