[123Britt]

I have read where on the M235i the Clamping force in all 8 gears is equal to
550nm. In contrast to other N55 engines having lower numbers in 3rd and 6th gears.

Makes sense that BM3 has a transmission flash for those cars -- addressing the
3rd & 6th gear issues -- especially when increasing Boost using BM3 ~ allowing the full potential of the tune.


Those who have Flashed an M235i -- is there a reason to ZF8 Flash and is there a difference?

I would certainly believe above Stage 1 tune to required this BM3 ZF8 Flash ; however, if I am only at Stage 1 93 -- Do I need this?

Any long term effects ?

I may just have to Flash and try it -- just looking for input from users.

Thanks in advance of your reply.

Note: I did send a question to BM3 Tech and they replied with:

"The purpose of bootmod3 transmission flash is to lift the torque limits on the 3rd and the 6th gear that mostly impact N55 equipped cars. Without this flash the 3rd and 6th gear load/torque targets (boost) end up far lower than the tune targets (at around 11-12psi) and a DME flash cannot lift them on its own.

It is purely up to you if you want to give it a try. You can always revert back to stock transmission."