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Originally Posted by Thescout13
Quote:
Originally Posted by Poochie
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Originally Posted by andrewc89
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Originally Posted by M2C89
The only thing I can think of that's a common issue with these cars is the amplifier, which seems to break randomly. Is there anything else?
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S55s have been known to spin a crank hub here and there |
That's an overblown issue mainly with folks that over-boost and unreasonable dog the shit out of their vehicle.. The S55 can take a flogging without incident. It's an enhanced version of the N55 with all the right ancillaries (two turbos, two fuel pumps, ect.) which that was motor was kind of lacking. It was designed from scratch to boogie.
If the crank hub was that serious and was deemed a major design flaw, BMW wouldn't of used the same motor in their high output vehicles like the M4 CS, GTS, ect. and instead jump back to the drawing board to push out something like a S58 to replace it.
Not an M2C fanboy, just respecting the S55 for what it is and capable of.. |
I think you underestimate two things (1) the cost of switching an engine platform mid cycle (engine choices are planned years in advanced for long cycles), and (2) the willingness of a company to not fix an issue as a way of avoiding acknowledging that issue even exists. |
I guess I don't but I do know there are smarter people than me that weighed in the cost/risk analysis and deemed that current S55 motor doesn't expose them to enough warranty losses to cease using it or replacing it before its scheduled shelf-life.
Someone like this guy: