I did change the SLS relatively recently and it has been clear.  I'll
re-check the clarity of the remaining fluid in the SLS fill canister.  If
it's still clear and not sooty then it's likely that the faulty flex hose
itself had deteriorated to the point of contaminating the SLS fluid locally.

On Tue, Sep 1, 2015 at 6:27 PM, fmiser via Mercedes <mercedes@okiebenz.com>
wrote:

> > Andrew wrote:
> >
> > This is a chicken and egg kind of thing. Did the SLS pump
> > fail, sending oil through the system that damaged the
> > spheres? If so, did this the flex hose to rupture? On the
> > other hand, if the spheres were already defective, could
> > this somehow have led to contamination of the SLS fluid,
> > turning it black? Inquiring minds want to know.
>
> Failing SLS accumulators (spheres) will NOT cause the oil to
> turn black.
>
> I have seen no evidence for or against engine oil causing
> accumulator or hose damage.
>
> With a failing pump seal, I have only seen SLS oil leak into
> the engine - not engine oil leak into the pump.  That's
> because the shaft is on the high-pressure side of the pump -
> not the input/suction side.
>
> The fluid get dark with age and use.  And if you have a hose
> that's dead, I could see that maybe the deterioration of the
> hose causing the fluid to get dark.
>
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