Yup. Put a new filter in a while ago. I am using a universal tractor hydraulic fluid. Two reasons. My accumulators are shot, my pump leaks and I just dont care. I go through about a gallon a week now!

But I am betting this fluid is what did in the hose. I actually do not know for sure if the hose is leaking, but I the fluid loss is too great for the pump itself.

For the hose. Yes, I will replace with new. Thats the plan. Read too many stories of people cutting an inch or so off then putting the ends on just to have them blow off. New hose for sure.

As for the dealer hose. That price is pretty cheap, but its for the hose only. No new ends. So really not a savings or any advantage other than some MB stars stamped on.

6G2 hose seems to be the way to go. Or something with a working pressure of at least 1500 (as mentioned above). Those that went with 500psi or less has hoses rupture.

I guess I will find out hard hard it is to snake the old one out, new one in. I may use the "fish tape" method and run a trace cable attached to the old. Then use that cable to pull the new one in. No clue yet until I look at it closer. Some took the crank pulley off. I am NOT doing that!

The plan is to get the proper rebuild kit for the pump, replace the hose then the accumulators. When I do the accumulators I will purge the system of crap fluid and get better stuff.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car