Just a hypothetical situation here. Say you hadn't checked the fluid level on a self-leveling rear-end for quite a while. Not that any of us on this board would neglect a maintenance item. But let's say when you did check it, you noticed it was really low - like barely touching the little dipstick. And to continue the hypothetical situation... Let's say you were planning on driving your 1982 300TD on a long trip, and you were planning on leaving Sunday, when no Mercedes shops are open, so you couldn't buy the recommended fluid, and it's already Saturday night. Could you add brake fluid or some other type of hydraulic fluid that you could buy at Pep Boys or some place that is open on Sundays? Again, keep in mind that no one would be lazy enough to neglect a system that should be checked on a regular basis, especially a system that is expensive to repair/replace, but I just wanted to know in case I ever run into some idiot who might possibly be in such a situation.

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Dave
1995 C280
1999 Triumph Daytona 955I - my speed fix.
1982 300TD - Gone, but not forgotten.