Quote:
Originally Posted by SaltyNC
Guido, do you have a source for the piston?
Salty
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Not a global one, only one in germany.
Somehow its not a part that bmw sells seperately.
I know where it sits, because for the m54 engine its freely available at bmw (its held in place with a little circlip/snap ring in the oil pump):
this is the schematic for the m54:
Part #12
http://bmwfans.info/parts-catalog/E8...mp_with_drive/
But for the s54 (and (euro)s50, almost same engine, 100% same problems
)
part not listed
http://bmwfans.info/parts-catalog/E8...mp_with_drive/
I have no idea if these parts are interchangeable, but I dont think so, at least I found no confirmation. But I'm not that deep in s54 mechanics (I have no info on their dimensions etc, looking the same and measuring up the same are of course 2 different things....).
The m54 part looks like this and is very cheap:
https://www.ecstuning.com/b-genuine-...e/11411716410/
These are s50/s54 pressure pistons:
I dont know where they get them or if they make them themselves but you can see they swap them in conserable numbers. Like I wrote 1 german workshop only charges €40 for the new piston fitted.
This picture comes from the german company Motorsporttechnik Mandel where most germans seem to get them:
https://www.facebook.com/permalink.p...43150009130028
On the german M forum there is maybe more info on this part and suppliers. Maybe they know if the part is the same as the m54 part.