Do you have an N55? Is so, yes, it's the same pump as your 335. But I didn't think the newer pump revisions experienced the same failure rates as the older ones (had a couple of 08 N54s that needed one, of course).
Anyway, I doubt I'll be doing this as a preventative item (it's a bit PITA to swap out).
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'02 S54 M3 (500/500 GC/Koni)
'08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs)
'14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat)
'08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat)
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