No, I probably could have re-sealed it. I only wanted to do it once and having a fresh pump would decrease the chance of a re-do. I found a good price for a rebuilt unit at a nearby parts house. The core charge was outrageous!

There are lots of places for leaks in the reservoir setup and connector hose. Be sure the pump itself is the problem before you go to all that trouble.

In my case, it was definitely the pump.

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02 S500
92 500SL
92 400E (Sold)
87 300E (Sold)
83 300D Turbo (Sold)
75 300D (Sold)
74 240D (Sold after 20 years)