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From what I understand.... BMW came out with a new pump design starting with March, 2010 production. The new HDP (hoch druck pump (nee.. HPFP, as we Americans call it...) is made by Conti. The old ones which had a high failure rate were made by Bosch. Most new replacement pumps are remanufactured from what I understand too.
IF your car was made before March, 2010 - you most likely have a Bosch pump. I am told (by my German tuner) that it is just a matter of WHEN and not IF it will fail.
Since most N55 production started around March, 2010... they seem to be ok. There were some N55's built prior to March, starting in Dec, 2009 though - I think those were early production models though and maybe press cars.
But the new Conti pumps seem to be holding up well and last even when the engine has mods. So... time will tell. Lets not panic here guys.
Dackel
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