Quote:
Originally Posted by Pladi
I saw that BMW changed their "Hydraulic Valve" ( Oil pressure control valve) from older N55 models.
We see alot of 2011 models in here and looks like those models had a very short run oil pressure valve installed.
From real oem :
11417622768
Hydraulic valve
Supersedes:
11417596899(05/01/2010 — 08/23/2011), nonexchangeable retrospectively 11417584989(09/01/2009 — )
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Plad, you seem to suggest that BMW may have found an issue with the hydraulic valve that controls oil pressure early on and made a change...this is interesting. I pulled up a photo of the hydraulic valve:
It appears to be of very similar design and function as the VANOS solenoids for the n55, which have been known to "act up" or fail from time to time; these have also seen design and p/n revisions throughout their lifetime. Do you know if the "early n55" valve had any use in any other engines prior to n55? If not, this would be a very interesting find, indeed. Thanks for the post!