In another thread, it was noted that
"the pump for the rear suspension, if neglected, can get really expensive to fix."

In my case, it took out the engine. The PO of my 300TD was cruising the autoroute at about 100mph (a cop, he didn't worry about tickets). Shrapnel from the failed pump broke the timing chain and strewed hatefull negative politics about the top end. Vacation skewered, he impulse traded in the 300TD for a 'Yoda, hence I was able to get the good deal I got. I had to buy a used motor, natch.

Question: Other than changing the fluid every other year, how to "maintain" a rear suspension pump? My manual is silent on its maintenance.

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Thx/Reno
An American in France
88 300TD 5spd Sportline (lowered factory susp) - totalled by a flying deer
89 Range Rover V8 - the 4wd beast
02 Toyota minivan
05 Peugeot Partner 4x4 Dangel
88 International Harvestor 633SA
--Gone but not forgotten:
1970 250/8 C (sold to buy 450 SLC)
1972 450 SLC (sold after battling wiring harness problems too long)
1971 300 SEL 6.3 (sold after destroying two *very* expensive rear LS diffs)
1986 560 SEL (now my little brother's pride and joy)