Quote:
Originally Posted by rking117
I thought that the 335 and the 3.5 Z had the same engine setup, just software differences that affect shift points and such. Not understanding why one would go into limp and not the other. Sounds to me like your engine might have a problem or something that may cause this limp mode to engage.
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The N54 335 and 135 definitely go into limp mode as well. In fact there was also a 135 that went into limp mode on Saturday's track day. It seems that's how it goes with stock N54... when I got the Z4 I mistakenly thought it had the better cooling system from the 335is/1M (and the N55 equipped 135is and F30 335 msport).. whoops on my part
My 335 is F30 version, and just like the later E90 335 it uses the single turbo N55. E89 35i/is as you know use the twin turbo N54 (1 vs. 2 turbos I would think makes a difference in heat generation... )
I'll let you know next time, when I track the F30 335. I've only used the Z435 so far.
Quite possible the F30 335 will limp mode too. That be really annoying.. two "bad" car choices!
EDIT: if you have suggestions for issues to look into for my Z4.. please let me know .. the techs looked it over on Tues when they swapped the HPFP and injectors and there was nothing they could find wrong with the radiators or fans.