On the 98 E300, the rate at which the steering rack leaks seems to vary. The Lucas product I put in helped considerably, but now the leak rate seems to be on the increase. Yes, I know I simply need to replace the rack. But I'm determined to delay as long as possible.

So....if I want to overfill the reservoir, do I simply need to make sure there's a bit of space in there when the fluid is at its hottest? I assume that overfilling to the point of no air space would result in too much pressure.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 158k miles
06 E320 CDI "Rutherford", Black on Tan, 177k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 144k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 72k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife