As I'm doing some servicing on my 93 190E 2.6 Sportline, I decided to swap the hydraulic system fluid/filter as well. This car has both the Rear Axle Level control and the ASD diff options. They use a common resevoir for fluid.

When I removed the filter, it was so clean it looked new (I smiled). When I removed the resevoir tank to drain it, there was a pile of sediment in the bottom (I frowned and muttered nasty words). What gives??

Regards, KM

Most tanks in general will allow for some sediment. The good thing is that it did not get into the rest of the system. You are fine!!

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Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

Okay... I think. Correct me if my logic is wrong here. From what I see, the hose at the bottom of the tank "feeds" the hydraulic pump, correct? And that the two steel lines that go into the top of the tank are returns which go through the filter and then return to the tank which should in turn contain clean fluid. Is all of the above correct? If so, ho does one get sediment in the tank and how would it not get into the pump?

Regards, KM