Topic: Mercedes 6.9: Sintered Filter in Pressure Regulator

[jllgd]

As a preventive measure on my 6.9, I am looking to replace the small sintered (sinter) filter that is fitted inside the hydraulic pressure regulator, at the hydraulic high pressure port.

Anyone now where to obtain this filter?
Unfortunately I don't have the part number.
Perhaps someone here has this number available?
Thanks

[TJ 450]

This part is NLA, it just needs to be soaked in brake cleaner or even ultrasonically cleaned.

Tim

[jllgd]

Thanks a lot for this info.
But I still would like to get the part number? Anyone?
Thanks

[rumb]

A1163270091

unobtanium

[daantjie]

Member "tcj" sells these.

[slfan]

I purchased one from the Classic Center in Irvine about two years ago.  It is important that you also get a new gasket for the top part of the reservoir that you open to reach the hydro pneumatic fluid filter. 

[s class]

The sintered filter is accessed via a steel closing plug facing the rear of the car.  No need to remove the regulator.  However, the regulator must indeed be removed to change the easily available paper filter element on its underside.

[PosedgeClk]

I would not replace this filter unless it were corroded, and even then, corrosion can oftentimes be removed. The sintering process means that metal particles were pressed together under heat, so you are looking at a porous metal object here. The particles appear to be on the order of 0.1mm, so this is in a different realm than activated charcoal or paper.

Counterarguments, anyone?

[jllgd]

I would not replace this filter unless it were corroded, and even then, corrosion can oftentimes be removed. The sintering process means that metal particles were pressed together under heat, so you are looking at a porous metal object here. The particles appear to be on the order of 0.1mm, so this is in a different realm than activated charcoal or paper.

Counterarguments, anyone?

Why would you not replace this sinter filter with a new one? New is better! No?
Thanks

[PosedgeClk]

That's not how it works. If you coughed on your otherwise brand new car key, would you rather wipe it off with a cloth or pay the dealer $700 for a new key? If you throw that filter away, there is a good chance that you could come back in 5000 years, wash it off with acetone, and reinstall it in your now prehistoric 6.9. I am not joking.

[s class]

Well it's moot since new ones are not available.  Take it out, clean it with brake and parts cleaner, then compressed air, and refit it.

[tcj]

Member "tcj" sells these.

correct. We reproduced the sinterfilter as they are NLA for a number of years now.
see here:
https://www.ebay-kleinanzeigen.de/s-anzeige/mercedes-w116-450sel-6-9-w126-mit-hpf-sinterfilter-neu-1163270091/1039701009-223-1688

Regards,
Thomas

[raueda1]

Will one of those cheap ultrasonic jewelry cleaners do a decent job on these little parts?