Quote:
Originally Posted by mkoesel
Wow, the disease is spreading!
Why B58D instead of B58O? I guess this four digit identifier doesn’t use the same system as the formal engine codes (B58B0O1)?
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Right, because B58O would be O0, and here we have O1. BMW now uses a new sequence of letters for the four-letter engine codes you might find for example in ETK. This started with N63 but became more systematic with the TUs of Bxx motors:
BxxA - K1
BxxB - U1
BxxC - M1
BxxD - O1
B4xE - T1 in UKL models
B4xF - T1 in CLAR models
BxxX - any hybrid using that engine
N63B - N63T3
N74B - N74U1
What's funny is that Supra crowd now talks about B58C vs B58D all the time.