I was just trying to adjust the level on my 85' wagon and the ends (little ball and socket things) were allowing so much play that adjustment had almost no effect. Where did you buy the ends?

Is there a way to tell if the rear not rising is a failed pump internally or the leveling valve? Both these days are $400.

I see fluid returning to the reservoir but there doesn't seem to be a volume test in the mb manual so how can I tell if the correct pressure is there?

On W123, it's just a turnbuckle. Any suitable wrench will do. One direction will lengthen, the other shorten.

SLS valve rebuild kit
 

the OP doesn't seem to be on this forum anymore, and the links to the repair kit aren't working for me. Pelican Parts has a nice article on rebuilding the valve, but no kit (only one for the pump). Does anyone know where to obtain one for the valve?

M####source.com has a kit. It's great and includes everything you need. just rebuilt mine last week.

From the MB Classic Center in California.

Yes! That is not the answer to my question: What is the correct length? The FSM procedure calls for some special tools, which Stretch could probably fabricate in 35 minutes with yardsticks and a laser pointer and an old jack, but I'm not nearly as clever and determined as he...

The length is the length. What matters is ride height. Measure on a flat surface. Then adjust the turnbuckle until it's right. Longer if it's low, shorter if high.

I'll tell you a trick I used to get it set in one shot, but don't come crying to me if you break your arm. Remove the turnbuckle entirely. Then rig a long stiff wire to work the valve manually. Start the car and work the valve. Once the ride height is where you want it, set the turnbuckle so that it snaps into place with no tension. Just be aware that the hydraulic system can lift or drop the entire weight of the car at scary speed. So if you try this, don't hurt yourself. You must figure a gimmick that will let you work the valve without having any part of your body under the car.

What is the correct ride height? 1987 300TD.

The issue is that setting the ride height too high will increase the hydraulic pressure that the control valve must hold, and that increased pressure will eventually cause the valve to fail if the ride height is set too high. New control valves are $$$, so I'd rather find the "too high" setting before I need a new control valve.

You're not going to blow out the valve, but I'll let that be. The ride height measurements should be in the FSM.

It is, and it is measured with special tools that I don't have. That is exactly the dilemma.

SLS valve reseal kit
 

Hi all

Does anyone know where to obtain just the seal kit for the sls valve? Don't
need the more expensive complete overhaul kit.

Regards